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 2:
 995         case 3:
 996         case 5:
 997                 /* r6xx, r7xx, evergreen, ni, si.
 998                  * TODO: add support for asic_type <= CHIP_RV770*/
 999                 if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
1000                         args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1001
1002                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1003
1004                         dividers->post_div = args.v3.ucPostDiv;
1005                         dividers->enable_post_div = (args.v3.ucCntlFlag &
1006                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1007                         dividers->enable_dithen = (args.v3.ucCntlFlag &
1008                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1009                         dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
1010                         dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
1011                         dividers->ref_div = args.v3.ucRefDiv;
1012                         dividers->vco_mode = (args.v3.ucCntlFlag &
1013                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1014                 } else {
1015                         /* for SI we use ComputeMemoryClockParam for memory plls */
1016                         if (adev->asic_type >= CHIP_TAHITI)
1017                                 return -EINVAL;
1018                         args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1019                         if (strobe_mode)
1020                                 args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
1021
1022                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1023
1024                         dividers->post_div = args.v5.ucPostDiv;
1025                         dividers->enable_post_div = (args.v5.ucCntlFlag &
1026                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1027                         dividers->enable_dithen = (args.v5.ucCntlFlag &
1028                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1029                         dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
1030                         dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
1031                         dividers->ref_div = args.v5.ucRefDiv;
1032                         dividers->vco_mode = (args.v5.ucCntlFlag &
1033                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1034                 }
1035                 break;
1036         case 4:
1037                 /* fusion */
1038                 args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
1039
1040                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1041
1042                 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1043                 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1044                 break;
1045         case 6:
1046                 /* CI */
1047                 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1048                 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1049                 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
1050
1051                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1052
1053                 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1054                 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1055                 dividers->ref_div = args.v6_out.ucPllRefDiv;
1056                 dividers->post_div = args.v6_out.ucPllPostDiv;
1057                 dividers->flags = args.v6_out.ucPllCntlFlag;
1058                 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1059                 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1060                 break;
1061         default:
1062                 return -EINVAL;
1063         }
1064         return 0;
1065 }
1066
1067 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1068                                             u32 clock,
1069                                             bool strobe_mode,
1070                                             struct atom_mpll_param *mpll_param)
1071 {
1072         COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1073         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1074         u8 frev, crev;
1075
1076         memset(&args, 0, sizeof(args));
1077         memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1078
1079         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1080                 return -EINVAL;
1081
1082         switch (frev) {
1083         case 2:
1084                 switch (crev) {
1085                 case 1:
1086                         /* SI */
1087                         args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1088                         args.ucInputFlag = 0;
1089                         if (strobe_mode)
1090                                 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1091
1092                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1093
1094                         mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1095                         mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1096                         mpll_param->post_div = args.ucPostDiv;
1097                         mpll_param->dll_speed = args.ucDllSpeed;
1098                         mpll_param->bwcntl = args.ucBWCntl;
1099                         mpll_param->vco_mode =
1100                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1101                         mpll_param->yclk_sel =
1102                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1103                         mpll_param->qdr =
1104                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1105                         mpll_param->half_rate =
1106                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1107                         break;
1108                 default:
1109                         return -EINVAL;
1110                 }
1111                 break;
1112         default:
1113                 return -EINVAL;
1114         }
1115         return 0;
1116 }
1117
1118 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1119                                              u32 eng_clock, u32 mem_clock)
1120 {
1121         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1122         int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1123         u32 tmp;
1124
1125         memset(&args, 0, sizeof(args));
1126
1127         tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1128         tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1129
1130         args.ulTargetEngineClock = cpu_to_le32(tmp);
1131         if (mem_clock)
1132                 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1133
1134         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1135 }
1136
1137 void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
1138                                           u16 *vddc, u16 *vddci, u16 *mvdd)
1139 {
1140         struct amdgpu_mode_info *mode_info = &adev->mode_info;
1141         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
1142         u8 frev, crev;
1143         u16 data_offset;
1144         union firmware_info *firmware_info;
1145
1146         *vddc = 0;
1147         *vddci = 0;
1148         *mvdd = 0;
1149
1150         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
1151                                    &frev, &crev, &data_offset)) {
1152                 firmware_info =
1153                         (union firmware_info *)(mode_info->atom_context->bios +
1154                                                 data_offset);
1155                 *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
1156                 if ((frev == 2) && (crev >= 2)) {
1157                         *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
1158                         *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
1159                 }
1160         }
1161 }
1162
1163 union set_voltage {
1164         struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1165         struct _SET_VOLTAGE_PARAMETERS v1;
1166         struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1167         struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1168 };
1169
1170 int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
1171                              u16 voltage_id, u16 *voltage)
1172 {
1173         union set_voltage args;
1174         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1175         u8 frev, crev;
1176
1177         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1178                 return -EINVAL;
1179
1180         switch (crev) {
1181         case 1:
1182                 return -EINVAL;
1183         case 2:
1184                 args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
1185                 args.v2.ucVoltageMode = 0;
1186                 args.v2.usVoltageLevel = 0;
1187
1188                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1189
1190                 *voltage = le16_to_cpu(args.v2.usVoltageLevel);
1191                 break;
1192         case 3:
1193                 args.v3.ucVoltageType = voltage_type;
1194                 args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
1195                 args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
1196
1197                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1198
1199                 *voltage = le16_to_cpu(args.v3.usVoltageLevel);
1200                 break;
1201         default:
1202                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1203                 return -EINVAL;
1204         }
1205
1206         return 0;
1207 }
1208
1209 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
1210                                                       u16 *voltage,
1211                                                       u16 leakage_idx)
1212 {
1213         return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
1214 }
1215
1216 int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
1217                                               u16 *leakage_id)
1218 {
1219         union set_voltage args;
1220         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1221         u8 frev, crev;
1222
1223         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1224                 return -EINVAL;
1225
1226         switch (crev) {
1227         case 3:
1228         case 4:
1229                 args.v3.ucVoltageType = 0;
1230                 args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
1231                 args.v3.usVoltageLevel = 0;
1232
1233                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1234
1235                 *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
1236                 break;
1237         default:
1238                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1239                 return -EINVAL;
1240         }
1241
1242         return 0;
1243 }
1244
1245 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
1246                                                              u16 *vddc, u16 *vddci,
1247                                                              u16 virtual_voltage_id,
1248                                                              u16 vbios_voltage_id)
1249 {
1250         int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
1251         u8 frev, crev;
1252         u16 data_offset, size;
1253         int i, j;
1254         ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
1255         u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
1256
1257         *vddc = 0;
1258         *vddci = 0;
1259
1260         if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1261                                     &frev, &crev, &data_offset))
1262                 return -EINVAL;
1263
1264         profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
1265                 (adev->mode_info.atom_context->bios + data_offset);
1266
1267         switch (frev) {
1268         case 1:
1269                 return -EINVAL;
1270         case 2:
1271                 switch (crev) {
1272                 case 1:
1273                         if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
1274                                 return -EINVAL;
1275                         leakage_bin = (u16 *)
1276                                 (adev->mode_info.atom_context->bios + data_offset +
1277                                  le16_to_cpu(profile->usLeakageBinArrayOffset));
1278                         vddc_id_buf = (u16 *)
1279                                 (adev->mode_info.atom_context->bios + data_offset +
1280                                  le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
1281                         vddc_buf = (u16 *)
1282                                 (adev->mode_info.atom_context->bios + data_offset +
1283                                  le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
1284                         vddci_id_buf = (u16 *)
1285                                 (adev->mode_info.atom_context->bios + data_offset +
1286                                  le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
1287                         vddci_buf = (u16 *)
1288                                 (adev->mode_info.atom_context->bios + data_offset +
1289                                  le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
1290
1291                         if (profile->ucElbVDDC_Num > 0) {
1292                                 for (i = 0; i < profile->ucElbVDDC_Num; i++) {
1293                                         if (vddc_id_buf[i] == virtual_voltage_id) {
1294                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1295                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1296                                                                 *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
1297                                                                 break;
1298                                                         }
1299                                                 }
1300                                                 break;
1301                                         }
1302                                 }
1303                         }
1304                         if (profile->ucElbVDDCI_Num > 0) {
1305                                 for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
1306                                         if (vddci_id_buf[i] == virtual_voltage_id) {
1307                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1308                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1309                                                                 *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
1310                                                                 break;
1311                                                         }
1312                                                 }
1313                                                 break;
1314                                         }
1315                                 }
1316                         }
1317                         break;
1318                 default:
1319                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1320                         return -EINVAL;
1321                 }
1322                 break;
1323         default:
1324                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1325                 return -EINVAL;
1326         }
1327
1328         return 0;
1329 }
1330
1331 union get_voltage_info {
1332         struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
1333         struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
1334 };
1335
1336 int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
1337                                     u16 virtual_voltage_id,
1338                                     u16 *voltage)
1339 {
1340         int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
1341         u32 entry_id;
1342         u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
1343         union get_voltage_info args;
1344
1345         for (entry_id = 0; entry_id < count; entry_id++) {
1346                 if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
1347                     virtual_voltage_id)
1348                         break;
1349         }
1350
1351         if (entry_id >= count)
1352                 return -EINVAL;
1353
1354         args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
1355         args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
1356         args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
1357         args.in.ulSCLKFreq =
1358                 cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
1359
1360         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1361
1362         *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
1363
1364         return 0;
1365 }
1366
1367 union voltage_object_info {
1368         struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1369         struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1370         struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1371 };
1372
1373 union voltage_object {
1374         struct _ATOM_VOLTAGE_OBJECT v1;
1375         struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1376         union _ATOM_VOLTAGE_OBJECT_V3 v3;
1377 };
1378
1379
1380 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1381                                                                         u8 voltage_type, u8 voltage_mode)
1382 {
1383         u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1384         u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1385         u8 *start = (u8*)v3;
1386
1387         while (offset < size) {
1388                 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1389                 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1390                     (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1391                         return vo;
1392                 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1393         }
1394         return NULL;
1395 }
1396
1397 int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
1398                               u8 voltage_type,
1399                               u8 *svd_gpio_id, u8 *svc_gpio_id)
1400 {
1401         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1402         u8 frev, crev;
1403         u16 data_offset, size;
1404         union voltage_object_info *voltage_info;
1405         union voltage_object *voltage_object = NULL;
1406
1407         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1408                                    &frev, &crev, &data_offset)) {
1409                 voltage_info = (union voltage_object_info *)
1410                         (adev->mode_info.atom_context->bios + data_offset);
1411
1412                 switch (frev) {
1413                 case 3:
1414                         switch (crev) {
1415                         case 1:
1416                                 voltage_object = (union voltage_object *)
1417                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1418                                                                       voltage_type,
1419                                                                       VOLTAGE_OBJ_SVID2);
1420                                 if (voltage_object) {
1421                                         *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
1422                                         *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
1423                                 } else {
1424                                         return -EINVAL;
1425                                 }
1426                                 break;
1427                         default:
1428                                 DRM_ERROR("unknown voltage object table\n");
1429                                 return -EINVAL;
1430                         }
1431                         break;
1432                 default:
1433                         DRM_ERROR("unknown voltage object table\n");
1434                         return -EINVAL;
1435                 }
1436
1437         }
1438         return 0;
1439 }
1440
1441 bool
1442 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1443                                 u8 voltage_type, u8 voltage_mode)
1444 {
1445         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1446         u8 frev, crev;
1447         u16 data_offset, size;
1448         union voltage_object_info *voltage_info;
1449
1450         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1451                                    &frev, &crev, &data_offset)) {
1452                 voltage_info = (union voltage_object_info *)
1453                         (adev->mode_info.atom_context->bios + data_offset);
1454
1455                 switch (frev) {
1456                 case 3:
1457                         switch (crev) {
1458                         case 1:
1459                                 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1460                                                                   voltage_type, voltage_mode))
1461                                         return true;
1462                                 break;
1463                         default:
1464                                 DRM_ERROR("unknown voltage object table\n");
1465                                 return false;
1466                         }
1467                         break;
1468                 default:
1469                         DRM_ERROR("unknown voltage object table\n");
1470                         return false;
1471                 }
1472
1473         }
1474         return false;
1475 }
1476
1477 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1478                                       u8 voltage_type, u8 voltage_mode,
1479                                       struct atom_voltage_table *voltage_table)
1480 {
1481         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1482         u8 frev, crev;
1483         u16 data_offset, size;
1484         int i;
1485         union voltage_object_info *voltage_info;
1486         union voltage_object *voltage_object = NULL;
1487
1488         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1489                                    &frev, &crev, &data_offset)) {
1490                 voltage_info = (union voltage_object_info *)
1491                         (adev->mode_info.atom_context->bios + data_offset);
1492
1493                 switch (frev) {
1494                 case 3:
1495                         switch (crev) {
1496                         case 1:
1497                                 voltage_object = (union voltage_object *)
1498                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1499                                                                       voltage_type, voltage_mode);
1500                                 if (voltage_object) {
1501                                         ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1502                                                 &voltage_object->v3.asGpioVoltageObj;
1503                                         VOLTAGE_LUT_ENTRY_V2 *lut;
1504                                         if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1505                                                 return -EINVAL;
1506                                         lut = &gpio->asVolGpioLut[0];
1507                                         for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1508                                                 voltage_table->entries[i].value =
1509                                                         le16_to_cpu(lut->usVoltageValue);
1510                                                 voltage_table->entries[i].smio_low =
1511                                                         le32_to_cpu(lut->ulVoltageId);
1512                                                 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1513                                                         ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1514                                         }
1515                                         voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1516                                         voltage_table->count = gpio->ucGpioEntryNum;
1517                                         voltage_table->phase_delay = gpio->ucPhaseDelay;
1518                                         return 0;
1519                                 }
1520                                 break;
1521                         default:
1522                                 DRM_ERROR("unknown voltage object table\n");
1523                                 return -EINVAL;
1524                         }
1525                         break;
1526                 default:
1527                         DRM_ERROR("unknown voltage object table\n");
1528                         return -EINVAL;
1529                 }
1530         }
1531         return -EINVAL;
1532 }
1533
1534 union vram_info {
1535         struct _ATOM_VRAM_INFO_V3 v1_3;
1536         struct _ATOM_VRAM_INFO_V4 v1_4;
1537         struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1538 };
1539
1540 #define MEM_ID_MASK           0xff000000
1541 #define MEM_ID_SHIFT          24
1542 #define CLOCK_RANGE_MASK      0x00ffffff
1543 #define CLOCK_RANGE_SHIFT     0
1544 #define LOW_NIBBLE_MASK       0xf
1545 #define DATA_EQU_PREV         0
1546 #define DATA_FROM_TABLE       4
1547
1548 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1549                                       u8 module_index,
1550                                       struct atom_mc_reg_table *reg_table)
1551 {
1552         int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1553         u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1554         u32 i = 0, j;
1555         u16 data_offset, size;
1556         union vram_info *vram_info;
1557
1558         memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1559
1560         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1561                                    &frev, &crev, &data_offset)) {
1562                 vram_info = (union vram_info *)
1563                         (adev->mode_info.atom_context->bios + data_offset);
1564                 switch (frev) {
1565                 case 1:
1566                         DRM_ERROR("old table version %d, %d\n", frev, crev);
1567                         return -EINVAL;
1568                 case 2:
1569                         switch (crev) {
1570                         case 1:
1571                                 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1572                                         ATOM_INIT_REG_BLOCK *reg_block =
1573                                                 (ATOM_INIT_REG_BLOCK *)
1574                                                 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1575                                         ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1576                                                 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1577                                                 ((u8 *)reg_block + (2 * sizeof(u16)) +
1578                                                  le16_to_cpu(reg_block->usRegIndexTblSize));
1579                                         ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1580                                         num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1581                                                            sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1582                                         if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1583                                                 return -EINVAL;
1584                                         while (i < num_entries) {
1585                                                 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1586                                                         break;
1587                                                 reg_table->mc_reg_address[i].s1 =
1588                                                         (u16)(le16_to_cpu(format->usRegIndex));
1589                                                 reg_table->mc_reg_address[i].pre_reg_data =
1590                                                         (u8)(format->ucPreRegDataLength);
1591                                                 i++;
1592                                                 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1593                                                         ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1594                                         }
1595                                         reg_table->last = i;
1596                                         while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1597                                                (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1598                                                 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1599                                                                 >> MEM_ID_SHIFT);
1600                                                 if (module_index == t_mem_id) {
1601                                                         reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1602                                                                 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1603                                                                       >> CLOCK_RANGE_SHIFT);
1604                                                         for (i = 0, j = 1; i < reg_table->last; i++) {
1605                                                                 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1606                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1607                                                                                 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1608                                                                         j++;
1609                                                                 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1610                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1611                                                                                 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1612                                                                 }
1613                                                         }
1614                                                         num_ranges++;
1615                                                 }
1616                                                 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1617                                                         ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1618                                         }
1619                                         if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1620                                                 return -EINVAL;
1621                                         reg_table->num_entries = num_ranges;
1622                                 } else
1623                                         return -EINVAL;
1624                                 break;
1625                         default:
1626                                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1627                                 return -EINVAL;
1628                         }
1629                         break;
1630                 default:
1631                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1632                         return -EINVAL;
1633                 }
1634                 return 0;
1635         }
1636         return -EINVAL;
1637 }
1638
1639 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1640 {
1641         int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1642         u8 frev, crev;
1643         u16 data_offset, size;
1644
1645         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1646                                           &frev, &crev, &data_offset))
1647                 return true;
1648
1649         return false;
1650 }
1651
1652 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1653 {
1654         uint32_t bios_6_scratch;
1655
1656         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1657
1658         if (lock) {
1659                 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1660                 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1661         } else {
1662                 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1663                 bios_6_scratch |= ATOM_S6_ACC_MODE;
1664         }
1665
1666         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1667 }
1668
1669 void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1670 {
1671         uint32_t bios_2_scratch, bios_6_scratch;
1672
1673         bios_2_scratch = RREG32(mmBIOS_SCRATCH_2);
1674         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1675
1676         /* let the bios control the backlight */
1677         bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1678
1679         /* tell the bios not to handle mode switching */
1680         bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1681
1682         /* clear the vbios dpms state */
1683         bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1684
1685         WREG32(mmBIOS_SCRATCH_2, bios_2_scratch);
1686         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1687 }
1688
1689 void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev)
1690 {
1691         int i;
1692
1693         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1694                 adev->bios_scratch[i] = RREG32(mmBIOS_SCRATCH_0 + i);
1695 }
1696
1697 void amdgpu_atombios_scratch_regs_restore(struct amdgpu_device *adev)
1698 {
1699         int i;
1700
1701         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1702                 WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
1703 }
1704
1705 void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
1706                                               bool hung)
1707 {
1708         u32 tmp = RREG32(mmBIOS_SCRATCH_3);
1709
1710         if (hung)
1711                 tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1712         else
1713                 tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1714
1715         WREG32(mmBIOS_SCRATCH_3, tmp);
1716 }
1717
1718 /* Atom needs data in little endian format
1719  * so swap as appropriate when copying data to
1720  * or from atom. Note that atom operates on
1721  * dw units.
1722  */
1723 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1724 {
1725 #ifdef __BIG_ENDIAN
1726         u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
1727         u32 *dst32, *src32;
1728         int i;
1729
1730         memcpy(src_tmp, src, num_bytes);
1731         src32 = (u32 *)src_tmp;
1732         dst32 = (u32 *)dst_tmp;
1733         if (to_le) {
1734                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1735                         dst32[i] = cpu_to_le32(src32[i]);
1736                 memcpy(dst, dst_tmp, num_bytes);
1737         } else {
1738                 u8 dws = num_bytes & ~3;
1739                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1740                         dst32[i] = le32_to_cpu(src32[i]);
1741                 memcpy(dst, dst_tmp, dws);
1742                 if (num_bytes % 4) {
1743                         for (i = 0; i < (num_bytes % 4); i++)
1744                                 dst[dws+i] = dst_tmp[dws+i];
1745                 }
1746         }
1747 #else
1748         memcpy(dst, src, num_bytes);
1749 #endif
1750 }