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                 } else if (adev->clock.default_dispclk <= 60000) {
 697                         DRM_INFO("Changing default dispclk from %dMhz to 625Mhz\n",
 698                                  adev->clock.default_dispclk / 100);
 699                         adev->clock.default_dispclk = 62500;
 700                 }
 701                 adev->clock.dp_extclk =
 702                         le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
 703                 adev->clock.current_dispclk = adev->clock.default_dispclk;
 704
 705                 adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
 706                 if (adev->clock.max_pixel_clock == 0)
 707                         adev->clock.max_pixel_clock = 40000;
 708
 709                 /* not technically a clock, but... */
 710                 adev->mode_info.firmware_flags =
 711                         le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
 712
 713                 ret = 0;
 714         }
 715
 716         adev->pm.current_sclk = adev->clock.default_sclk;
 717         adev->pm.current_mclk = adev->clock.default_mclk;
 718
 719         return ret;
 720 }
 721
 722 union gfx_info {
 723         ATOM_GFX_INFO_V2_1 info;
 724 };
 725
 726 int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
 727 {
 728         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 729         int index = GetIndexIntoMasterTable(DATA, GFX_Info);
 730         uint8_t frev, crev;
 731         uint16_t data_offset;
 732         int ret = -EINVAL;
 733
 734         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 735                                    &frev, &crev, &data_offset)) {
 736                 union gfx_info *gfx_info = (union gfx_info *)
 737                         (mode_info->atom_context->bios + data_offset);
 738
 739                 adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
 740                 adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
 741                 adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
 742                 adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
 743                 adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
 744                 adev->gfx.config.max_texture_channel_caches =
 745                         gfx_info->info.max_texture_channel_caches;
 746
 747                 ret = 0;
 748         }
 749         return ret;
 750 }
 751
 752 union igp_info {
 753         struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 754         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
 755         struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
 756         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
 757         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
 758         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
 759 };
 760
 761 /*
 762  * Return vram width from integrated system info table, if available,
 763  * or 0 if not.
 764  */
 765 int amdgpu_atombios_get_vram_width(struct amdgpu_device *adev)
 766 {
 767         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 768         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 769         u16 data_offset, size;
 770         union igp_info *igp_info;
 771         u8 frev, crev;
 772
 773         /* get any igp specific overrides */
 774         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 775                                    &frev, &crev, &data_offset)) {
 776                 igp_info = (union igp_info *)
 777                         (mode_info->atom_context->bios + data_offset);
 778                 switch (crev) {
 779                 case 8:
 780                 case 9:
 781                         return igp_info->info_8.ucUMAChannelNumber * 64;
 782                 default:
 783                         return 0;
 784                 }
 785         }
 786
 787         return 0;
 788 }
 789
 790 static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
 791                                                  struct amdgpu_atom_ss *ss,
 792                                                  int id)
 793 {
 794         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 795         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 796         u16 data_offset, size;
 797         union igp_info *igp_info;
 798         u8 frev, crev;
 799         u16 percentage = 0, rate = 0;
 800
 801         /* get any igp specific overrides */
 802         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 803                                    &frev, &crev, &data_offset)) {
 804                 igp_info = (union igp_info *)
 805                         (mode_info->atom_context->bios + data_offset);
 806                 switch (crev) {
 807                 case 6:
 808                         switch (id) {
 809                         case ASIC_INTERNAL_SS_ON_TMDS:
 810                                 percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
 811                                 rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
 812                                 break;
 813                         case ASIC_INTERNAL_SS_ON_HDMI:
 814                                 percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
 815                                 rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
 816                                 break;
 817                         case ASIC_INTERNAL_SS_ON_LVDS:
 818                                 percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
 819                                 rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
 820                                 break;
 821                         }
 822                         break;
 823                 case 7:
 824                         switch (id) {
 825                         case ASIC_INTERNAL_SS_ON_TMDS:
 826                                 percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
 827                                 rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
 828                                 break;
 829                         case ASIC_INTERNAL_SS_ON_HDMI:
 830                                 percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
 831                                 rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
 832                                 break;
 833                         case ASIC_INTERNAL_SS_ON_LVDS:
 834                                 percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
 835                                 rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
 836                                 break;
 837                         }
 838                         break;
 839                 case 8:
 840                         switch (id) {
 841                         case ASIC_INTERNAL_SS_ON_TMDS:
 842                                 percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
 843                                 rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
 844                                 break;
 845                         case ASIC_INTERNAL_SS_ON_HDMI:
 846                                 percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
 847                                 rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
 848                                 break;
 849                         case ASIC_INTERNAL_SS_ON_LVDS:
 850                                 percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
 851                                 rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
 852                                 break;
 853                         }
 854                         break;
 855                 case 9:
 856                         switch (id) {
 857                         case ASIC_INTERNAL_SS_ON_TMDS:
 858                                 percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
 859                                 rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
 860                                 break;
 861                         case ASIC_INTERNAL_SS_ON_HDMI:
 862                                 percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
 863                                 rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
 864                                 break;
 865                         case ASIC_INTERNAL_SS_ON_LVDS:
 866                                 percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
 867                                 rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
 868                                 break;
 869                         }
 870                         break;
 871                 default:
 872                         DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
 873                         break;
 874                 }
 875                 if (percentage)
 876                         ss->percentage = percentage;
 877                 if (rate)
 878                         ss->rate = rate;
 879         }
 880 }
 881
 882 union asic_ss_info {
 883         struct _ATOM_ASIC_INTERNAL_SS_INFO info;
 884         struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
 885         struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
 886 };
 887
 888 union asic_ss_assignment {
 889         struct _ATOM_ASIC_SS_ASSIGNMENT v1;
 890         struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
 891         struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
 892 };
 893
 894 bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
 895                                       struct amdgpu_atom_ss *ss,
 896                                       int id, u32 clock)
 897 {
 898         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 899         int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
 900         uint16_t data_offset, size;
 901         union asic_ss_info *ss_info;
 902         union asic_ss_assignment *ss_assign;
 903         uint8_t frev, crev;
 904         int i, num_indices;
 905
 906         if (id == ASIC_INTERNAL_MEMORY_SS) {
 907                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
 908                         return false;
 909         }
 910         if (id == ASIC_INTERNAL_ENGINE_SS) {
 911                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
 912                         return false;
 913         }
 914
 915         memset(ss, 0, sizeof(struct amdgpu_atom_ss));
 916         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 917                                    &frev, &crev, &data_offset)) {
 918
 919                 ss_info =
 920                         (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
 921
 922                 switch (frev) {
 923                 case 1:
 924                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 925                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT);
 926
 927                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
 928                         for (i = 0; i < num_indices; i++) {
 929                                 if ((ss_assign->v1.ucClockIndication == id) &&
 930                                     (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
 931                                         ss->percentage =
 932                                                 le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
 933                                         ss->type = ss_assign->v1.ucSpreadSpectrumMode;
 934                                         ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
 935                                         ss->percentage_divider = 100;
 936                                         return true;
 937                                 }
 938                                 ss_assign = (union asic_ss_assignment *)
 939                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
 940                         }
 941                         break;
 942                 case 2:
 943                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 944                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
 945                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
 946                         for (i = 0; i < num_indices; i++) {
 947                                 if ((ss_assign->v2.ucClockIndication == id) &&
 948                                     (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
 949                                         ss->percentage =
 950                                                 le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
 951                                         ss->type = ss_assign->v2.ucSpreadSpectrumMode;
 952                                         ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
 953                                         ss->percentage_divider = 100;
 954                                         if ((crev == 2) &&
 955                                             ((id == ASIC_INTERNAL_ENGINE_SS) ||
 956                                              (id == ASIC_INTERNAL_MEMORY_SS)))
 957                                                 ss->rate /= 100;
 958                                         return true;
 959                                 }
 960                                 ss_assign = (union asic_ss_assignment *)
 961                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
 962                         }
 963                         break;
 964                 case 3:
 965                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 966                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
 967                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
 968                         for (i = 0; i < num_indices; i++) {
 969                                 if ((ss_assign->v3.ucClockIndication == id) &&
 970                                     (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
 971                                         ss->percentage =
 972                                                 le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
 973                                         ss->type = ss_assign->v3.ucSpreadSpectrumMode;
 974                                         ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
 975                                         if (ss_assign->v3.ucSpreadSpectrumMode &
 976                                             SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
 977                                                 ss->percentage_divider = 1000;
 978                                         else
 979                                                 ss->percentage_divider = 100;
 980                                         if ((id == ASIC_INTERNAL_ENGINE_SS) ||
 981                                             (id == ASIC_INTERNAL_MEMORY_SS))
 982                                                 ss->rate /= 100;
 983                                         if (adev->flags & AMD_IS_APU)
 984                                                 amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
 985                                         return true;
 986                                 }
 987                                 ss_assign = (union asic_ss_assignment *)
 988                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
 989                         }
 990                         break;
 991                 default:
 992                         DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
 993                         break;
 994                 }
 995
 996         }
 997         return false;
 998 }
 999
1000 union get_clock_dividers {
1001         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
1002         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
1003         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
1004         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
1005         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
1006         struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
1007         struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
1008 };
1009
1010 int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
1011                                        u8 clock_type,
1012                                        u32 clock,
1013                                        bool strobe_mode,
1014                                        struct atom_clock_dividers *dividers)
1015 {
1016         union get_clock_dividers args;
1017         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
1018         u8 frev, crev;
1019
1020         memset(&args, 0, sizeof(args));
1021         memset(dividers, 0, sizeof(struct atom_clock_dividers));
1022
1023         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1024                 return -EINVAL;
1025
1026         switch (crev) {
1027         case 2:
1028         case 3:
1029         case 5:
1030                 /* r6xx, r7xx, evergreen, ni, si.
1031                  * TODO: add support for asic_type <= CHIP_RV770*/
1032                 if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
1033                         args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1034
1035                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1036
1037                         dividers->post_div = args.v3.ucPostDiv;
1038                         dividers->enable_post_div = (args.v3.ucCntlFlag &
1039                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1040                         dividers->enable_dithen = (args.v3.ucCntlFlag &
1041                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1042                         dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
1043                         dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
1044                         dividers->ref_div = args.v3.ucRefDiv;
1045                         dividers->vco_mode = (args.v3.ucCntlFlag &
1046                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1047                 } else {
1048                         /* for SI we use ComputeMemoryClockParam for memory plls */
1049                         if (adev->asic_type >= CHIP_TAHITI)
1050                                 return -EINVAL;
1051                         args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1052                         if (strobe_mode)
1053                                 args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
1054
1055                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1056
1057                         dividers->post_div = args.v5.ucPostDiv;
1058                         dividers->enable_post_div = (args.v5.ucCntlFlag &
1059                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1060                         dividers->enable_dithen = (args.v5.ucCntlFlag &
1061                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1062                         dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
1063                         dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
1064                         dividers->ref_div = args.v5.ucRefDiv;
1065                         dividers->vco_mode = (args.v5.ucCntlFlag &
1066                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1067                 }
1068                 break;
1069         case 4:
1070                 /* fusion */
1071                 args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
1072
1073                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1074
1075                 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1076                 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1077                 break;
1078         case 6:
1079                 /* CI */
1080                 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1081                 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1082                 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
1083
1084                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1085
1086                 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1087                 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1088                 dividers->ref_div = args.v6_out.ucPllRefDiv;
1089                 dividers->post_div = args.v6_out.ucPllPostDiv;
1090                 dividers->flags = args.v6_out.ucPllCntlFlag;
1091                 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1092                 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1093                 break;
1094         default:
1095                 return -EINVAL;
1096         }
1097         return 0;
1098 }
1099
1100 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1101                                             u32 clock,
1102                                             bool strobe_mode,
1103                                             struct atom_mpll_param *mpll_param)
1104 {
1105         COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1106         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1107         u8 frev, crev;
1108
1109         memset(&args, 0, sizeof(args));
1110         memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1111
1112         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1113                 return -EINVAL;
1114
1115         switch (frev) {
1116         case 2:
1117                 switch (crev) {
1118                 case 1:
1119                         /* SI */
1120                         args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1121                         args.ucInputFlag = 0;
1122                         if (strobe_mode)
1123                                 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1124
1125                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1126
1127                         mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1128                         mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1129                         mpll_param->post_div = args.ucPostDiv;
1130                         mpll_param->dll_speed = args.ucDllSpeed;
1131                         mpll_param->bwcntl = args.ucBWCntl;
1132                         mpll_param->vco_mode =
1133                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1134                         mpll_param->yclk_sel =
1135                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1136                         mpll_param->qdr =
1137                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1138                         mpll_param->half_rate =
1139                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1140                         break;
1141                 default:
1142                         return -EINVAL;
1143                 }
1144                 break;
1145         default:
1146                 return -EINVAL;
1147         }
1148         return 0;
1149 }
1150
1151 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1152                                              u32 eng_clock, u32 mem_clock)
1153 {
1154         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1155         int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1156         u32 tmp;
1157
1158         memset(&args, 0, sizeof(args));
1159
1160         tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1161         tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1162
1163         args.ulTargetEngineClock = cpu_to_le32(tmp);
1164         if (mem_clock)
1165                 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1166
1167         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1168 }
1169
1170 void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
1171                                           u16 *vddc, u16 *vddci, u16 *mvdd)
1172 {
1173         struct amdgpu_mode_info *mode_info = &adev->mode_info;
1174         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
1175         u8 frev, crev;
1176         u16 data_offset;
1177         union firmware_info *firmware_info;
1178
1179         *vddc = 0;
1180         *vddci = 0;
1181         *mvdd = 0;
1182
1183         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
1184                                    &frev, &crev, &data_offset)) {
1185                 firmware_info =
1186                         (union firmware_info *)(mode_info->atom_context->bios +
1187                                                 data_offset);
1188                 *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
1189                 if ((frev == 2) && (crev >= 2)) {
1190                         *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
1191                         *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
1192                 }
1193         }
1194 }
1195
1196 union set_voltage {
1197         struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1198         struct _SET_VOLTAGE_PARAMETERS v1;
1199         struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1200         struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1201 };
1202
1203 int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
1204                              u16 voltage_id, u16 *voltage)
1205 {
1206         union set_voltage args;
1207         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1208         u8 frev, crev;
1209
1210         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1211                 return -EINVAL;
1212
1213         switch (crev) {
1214         case 1:
1215                 return -EINVAL;
1216         case 2:
1217                 args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
1218                 args.v2.ucVoltageMode = 0;
1219                 args.v2.usVoltageLevel = 0;
1220
1221                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1222
1223                 *voltage = le16_to_cpu(args.v2.usVoltageLevel);
1224                 break;
1225         case 3:
1226                 args.v3.ucVoltageType = voltage_type;
1227                 args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
1228                 args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
1229
1230                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1231
1232                 *voltage = le16_to_cpu(args.v3.usVoltageLevel);
1233                 break;
1234         default:
1235                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1236                 return -EINVAL;
1237         }
1238
1239         return 0;
1240 }
1241
1242 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
1243                                                       u16 *voltage,
1244                                                       u16 leakage_idx)
1245 {
1246         return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
1247 }
1248
1249 int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
1250                                               u16 *leakage_id)
1251 {
1252         union set_voltage args;
1253         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1254         u8 frev, crev;
1255
1256         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1257                 return -EINVAL;
1258
1259         switch (crev) {
1260         case 3:
1261         case 4:
1262                 args.v3.ucVoltageType = 0;
1263                 args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
1264                 args.v3.usVoltageLevel = 0;
1265
1266                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1267
1268                 *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
1269                 break;
1270         default:
1271                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1272                 return -EINVAL;
1273         }
1274
1275         return 0;
1276 }
1277
1278 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
1279                                                              u16 *vddc, u16 *vddci,
1280                                                              u16 virtual_voltage_id,
1281                                                              u16 vbios_voltage_id)
1282 {
1283         int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
1284         u8 frev, crev;
1285         u16 data_offset, size;
1286         int i, j;
1287         ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
1288         u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
1289
1290         *vddc = 0;
1291         *vddci = 0;
1292
1293         if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1294                                     &frev, &crev, &data_offset))
1295                 return -EINVAL;
1296
1297         profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
1298                 (adev->mode_info.atom_context->bios + data_offset);
1299
1300         switch (frev) {
1301         case 1:
1302                 return -EINVAL;
1303         case 2:
1304                 switch (crev) {
1305                 case 1:
1306                         if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
1307                                 return -EINVAL;
1308                         leakage_bin = (u16 *)
1309                                 (adev->mode_info.atom_context->bios + data_offset +
1310                                  le16_to_cpu(profile->usLeakageBinArrayOffset));
1311                         vddc_id_buf = (u16 *)
1312                                 (adev->mode_info.atom_context->bios + data_offset +
1313                                  le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
1314                         vddc_buf = (u16 *)
1315                                 (adev->mode_info.atom_context->bios + data_offset +
1316                                  le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
1317                         vddci_id_buf = (u16 *)
1318                                 (adev->mode_info.atom_context->bios + data_offset +
1319                                  le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
1320                         vddci_buf = (u16 *)
1321                                 (adev->mode_info.atom_context->bios + data_offset +
1322                                  le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
1323
1324                         if (profile->ucElbVDDC_Num > 0) {
1325                                 for (i = 0; i < profile->ucElbVDDC_Num; i++) {
1326                                         if (vddc_id_buf[i] == virtual_voltage_id) {
1327                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1328                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1329                                                                 *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
1330                                                                 break;
1331                                                         }
1332                                                 }
1333                                                 break;
1334                                         }
1335                                 }
1336                         }
1337                         if (profile->ucElbVDDCI_Num > 0) {
1338                                 for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
1339                                         if (vddci_id_buf[i] == virtual_voltage_id) {
1340                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1341                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1342                                                                 *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
1343                                                                 break;
1344                                                         }
1345                                                 }
1346                                                 break;
1347                                         }
1348                                 }
1349                         }
1350                         break;
1351                 default:
1352                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1353                         return -EINVAL;
1354                 }
1355                 break;
1356         default:
1357                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1358                 return -EINVAL;
1359         }
1360
1361         return 0;
1362 }
1363
1364 union get_voltage_info {
1365         struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
1366         struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
1367 };
1368
1369 int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
1370                                     u16 virtual_voltage_id,
1371                                     u16 *voltage)
1372 {
1373         int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
1374         u32 entry_id;
1375         u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
1376         union get_voltage_info args;
1377
1378         for (entry_id = 0; entry_id < count; entry_id++) {
1379                 if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
1380                     virtual_voltage_id)
1381                         break;
1382         }
1383
1384         if (entry_id >= count)
1385                 return -EINVAL;
1386
1387         args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
1388         args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
1389         args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
1390         args.in.ulSCLKFreq =
1391                 cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
1392
1393         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1394
1395         *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
1396
1397         return 0;
1398 }
1399
1400 union voltage_object_info {
1401         struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1402         struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1403         struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1404 };
1405
1406 union voltage_object {
1407         struct _ATOM_VOLTAGE_OBJECT v1;
1408         struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1409         union _ATOM_VOLTAGE_OBJECT_V3 v3;
1410 };
1411
1412
1413 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1414                                                                         u8 voltage_type, u8 voltage_mode)
1415 {
1416         u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1417         u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1418         u8 *start = (u8*)v3;
1419
1420         while (offset < size) {
1421                 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1422                 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1423                     (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1424                         return vo;
1425                 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1426         }
1427         return NULL;
1428 }
1429
1430 int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
1431                               u8 voltage_type,
1432                               u8 *svd_gpio_id, u8 *svc_gpio_id)
1433 {
1434         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1435         u8 frev, crev;
1436         u16 data_offset, size;
1437         union voltage_object_info *voltage_info;
1438         union voltage_object *voltage_object = NULL;
1439
1440         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1441                                    &frev, &crev, &data_offset)) {
1442                 voltage_info = (union voltage_object_info *)
1443                         (adev->mode_info.atom_context->bios + data_offset);
1444
1445                 switch (frev) {
1446                 case 3:
1447                         switch (crev) {
1448                         case 1:
1449                                 voltage_object = (union voltage_object *)
1450                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1451                                                                       voltage_type,
1452                                                                       VOLTAGE_OBJ_SVID2);
1453                                 if (voltage_object) {
1454                                         *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
1455                                         *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
1456                                 } else {
1457                                         return -EINVAL;
1458                                 }
1459                                 break;
1460                         default:
1461                                 DRM_ERROR("unknown voltage object table\n");
1462                                 return -EINVAL;
1463                         }
1464                         break;
1465                 default:
1466                         DRM_ERROR("unknown voltage object table\n");
1467                         return -EINVAL;
1468                 }
1469
1470         }
1471         return 0;
1472 }
1473
1474 bool
1475 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1476                                 u8 voltage_type, u8 voltage_mode)
1477 {
1478         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1479         u8 frev, crev;
1480         u16 data_offset, size;
1481         union voltage_object_info *voltage_info;
1482
1483         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1484                                    &frev, &crev, &data_offset)) {
1485                 voltage_info = (union voltage_object_info *)
1486                         (adev->mode_info.atom_context->bios + data_offset);
1487
1488                 switch (frev) {
1489                 case 3:
1490                         switch (crev) {
1491                         case 1:
1492                                 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1493                                                                   voltage_type, voltage_mode))
1494                                         return true;
1495                                 break;
1496                         default:
1497                                 DRM_ERROR("unknown voltage object table\n");
1498                                 return false;
1499                         }
1500                         break;
1501                 default:
1502                         DRM_ERROR("unknown voltage object table\n");
1503                         return false;
1504                 }
1505
1506         }
1507         return false;
1508 }
1509
1510 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1511                                       u8 voltage_type, u8 voltage_mode,
1512                                       struct atom_voltage_table *voltage_table)
1513 {
1514         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1515         u8 frev, crev;
1516         u16 data_offset, size;
1517         int i;
1518         union voltage_object_info *voltage_info;
1519         union voltage_object *voltage_object = NULL;
1520
1521         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1522                                    &frev, &crev, &data_offset)) {
1523                 voltage_info = (union voltage_object_info *)
1524                         (adev->mode_info.atom_context->bios + data_offset);
1525
1526                 switch (frev) {
1527                 case 3:
1528                         switch (crev) {
1529                         case 1:
1530                                 voltage_object = (union voltage_object *)
1531                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1532                                                                       voltage_type, voltage_mode);
1533                                 if (voltage_object) {
1534                                         ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1535                                                 &voltage_object->v3.asGpioVoltageObj;
1536                                         VOLTAGE_LUT_ENTRY_V2 *lut;
1537                                         if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1538                                                 return -EINVAL;
1539                                         lut = &gpio->asVolGpioLut[0];
1540                                         for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1541                                                 voltage_table->entries[i].value =
1542                                                         le16_to_cpu(lut->usVoltageValue);
1543                                                 voltage_table->entries[i].smio_low =
1544                                                         le32_to_cpu(lut->ulVoltageId);
1545                                                 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1546                                                         ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1547                                         }
1548                                         voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1549                                         voltage_table->count = gpio->ucGpioEntryNum;
1550                                         voltage_table->phase_delay = gpio->ucPhaseDelay;
1551                                         return 0;
1552                                 }
1553                                 break;
1554                         default:
1555                                 DRM_ERROR("unknown voltage object table\n");
1556                                 return -EINVAL;
1557                         }
1558                         break;
1559                 default:
1560                         DRM_ERROR("unknown voltage object table\n");
1561                         return -EINVAL;
1562                 }
1563         }
1564         return -EINVAL;
1565 }
1566
1567 union vram_info {
1568         struct _ATOM_VRAM_INFO_V3 v1_3;
1569         struct _ATOM_VRAM_INFO_V4 v1_4;
1570         struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1571 };
1572
1573 #define MEM_ID_MASK           0xff000000
1574 #define MEM_ID_SHIFT          24
1575 #define CLOCK_RANGE_MASK      0x00ffffff
1576 #define CLOCK_RANGE_SHIFT     0
1577 #define LOW_NIBBLE_MASK       0xf
1578 #define DATA_EQU_PREV         0
1579 #define DATA_FROM_TABLE       4
1580
1581 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1582                                       u8 module_index,
1583                                       struct atom_mc_reg_table *reg_table)
1584 {
1585         int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1586         u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1587         u32 i = 0, j;
1588         u16 data_offset, size;
1589         union vram_info *vram_info;
1590
1591         memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1592
1593         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1594                                    &frev, &crev, &data_offset)) {
1595                 vram_info = (union vram_info *)
1596                         (adev->mode_info.atom_context->bios + data_offset);
1597                 switch (frev) {
1598                 case 1:
1599                         DRM_ERROR("old table version %d, %d\n", frev, crev);
1600                         return -EINVAL;
1601                 case 2:
1602                         switch (crev) {
1603                         case 1:
1604                                 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1605                                         ATOM_INIT_REG_BLOCK *reg_block =
1606                                                 (ATOM_INIT_REG_BLOCK *)
1607                                                 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1608                                         ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1609                                                 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1610                                                 ((u8 *)reg_block + (2 * sizeof(u16)) +
1611                                                  le16_to_cpu(reg_block->usRegIndexTblSize));
1612                                         ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1613                                         num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1614                                                            sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1615                                         if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1616                                                 return -EINVAL;
1617                                         while (i < num_entries) {
1618                                                 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1619                                                         break;
1620                                                 reg_table->mc_reg_address[i].s1 =
1621                                                         (u16)(le16_to_cpu(format->usRegIndex));
1622                                                 reg_table->mc_reg_address[i].pre_reg_data =
1623                                                         (u8)(format->ucPreRegDataLength);
1624                                                 i++;
1625                                                 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1626                                                         ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1627                                         }
1628                                         reg_table->last = i;
1629                                         while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1630                                                (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1631                                                 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1632                                                                 >> MEM_ID_SHIFT);
1633                                                 if (module_index == t_mem_id) {
1634                                                         reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1635                                                                 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1636                                                                       >> CLOCK_RANGE_SHIFT);
1637                                                         for (i = 0, j = 1; i < reg_table->last; i++) {
1638                                                                 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1639                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1640                                                                                 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1641                                                                         j++;
1642                                                                 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1643                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1644                                                                                 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1645                                                                 }
1646                                                         }
1647                                                         num_ranges++;
1648                                                 }
1649                                                 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1650                                                         ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1651                                         }
1652                                         if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1653                                                 return -EINVAL;
1654                                         reg_table->num_entries = num_ranges;
1655                                 } else
1656                                         return -EINVAL;
1657                                 break;
1658                         default:
1659                                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1660                                 return -EINVAL;
1661                         }
1662                         break;
1663                 default:
1664                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1665                         return -EINVAL;
1666                 }
1667                 return 0;
1668         }
1669         return -EINVAL;
1670 }
1671
1672 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1673 {
1674         int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1675         u8 frev, crev;
1676         u16 data_offset, size;
1677
1678         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1679                                           &frev, &crev, &data_offset))
1680                 return true;
1681
1682         return false;
1683 }
1684
1685 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1686 {
1687         uint32_t bios_6_scratch;
1688
1689         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1690
1691         if (lock) {
1692                 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1693                 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1694         } else {
1695                 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1696                 bios_6_scratch |= ATOM_S6_ACC_MODE;
1697         }
1698
1699         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1700 }
1701
1702 void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1703 {
1704         uint32_t bios_2_scratch, bios_6_scratch;
1705
1706         bios_2_scratch = RREG32(mmBIOS_SCRATCH_2);
1707         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1708
1709         /* let the bios control the backlight */
1710         bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1711
1712         /* tell the bios not to handle mode switching */
1713         bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1714
1715         /* clear the vbios dpms state */
1716         bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1717
1718         WREG32(mmBIOS_SCRATCH_2, bios_2_scratch);
1719         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1720 }
1721
1722 void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev)
1723 {
1724         int i;
1725
1726         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1727                 adev->bios_scratch[i] = RREG32(mmBIOS_SCRATCH_0 + i);
1728 }
1729
1730 void amdgpu_atombios_scratch_regs_restore(struct amdgpu_device *adev)
1731 {
1732         int i;
1733
1734         /*
1735          * VBIOS will check ASIC_INIT_COMPLETE bit to decide if
1736          * execute ASIC_Init posting via driver
1737          */
1738         adev->bios_scratch[7] &= ~ATOM_S7_ASIC_INIT_COMPLETE_MASK;
1739
1740         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1741                 WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
1742 }
1743
1744 void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
1745                                               bool hung)
1746 {
1747         u32 tmp = RREG32(mmBIOS_SCRATCH_3);
1748
1749         if (hung)
1750                 tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1751         else
1752                 tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1753
1754         WREG32(mmBIOS_SCRATCH_3, tmp);
1755 }
1756
1757 /* Atom needs data in little endian format
1758  * so swap as appropriate when copying data to
1759  * or from atom. Note that atom operates on
1760  * dw units.
1761  */
1762 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1763 {
1764 #ifdef __BIG_ENDIAN
1765         u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
1766         u32 *dst32, *src32;
1767         int i;
1768
1769         memcpy(src_tmp, src, num_bytes);
1770         src32 = (u32 *)src_tmp;
1771         dst32 = (u32 *)dst_tmp;
1772         if (to_le) {
1773                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1774                         dst32[i] = cpu_to_le32(src32[i]);
1775                 memcpy(dst, dst_tmp, num_bytes);
1776         } else {
1777                 u8 dws = num_bytes & ~3;
1778                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1779                         dst32[i] = le32_to_cpu(src32[i]);
1780                 memcpy(dst, dst_tmp, dws);
1781                 if (num_bytes % 4) {
1782                         for (i = 0; i < (num_bytes % 4); i++)
1783                                 dst[dws+i] = dst_tmp[dws+i];
1784                 }
1785         }
1786 #else
1787         memcpy(dst, src, num_bytes);
1788 #endif
1789 }
1790
1791 int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
1792 {
1793         struct atom_context *ctx = adev->mode_info.atom_context;
1794         int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1795         uint16_t data_offset;
1796         int usage_bytes = 0;
1797         struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1798
1799         if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1800                 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1801
1802                 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1803                           le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1804                           le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1805
1806                 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1807         }
1808         ctx->scratch_size_bytes = 0;
1809         if (usage_bytes == 0)
1810                 usage_bytes = 20 * 1024;
1811         /* allocate some scratch memory */
1812         ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1813         if (!ctx->scratch)
1814                 return -ENOMEM;
1815         ctx->scratch_size_bytes = usage_bytes;
1816         return 0;
1817 }