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_get_connector_info_from_object_table(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_CONNECTOR_OBJECT_TABLE *con_obj;
 270         ATOM_ENCODER_OBJECT_TABLE *enc_obj;
 271         ATOM_OBJECT_TABLE *router_obj;
 272         ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
 273         ATOM_OBJECT_HEADER *obj_header;
 274         int i, j, k, path_size, device_support;
 275         int connector_type;
 276         u16 conn_id, connector_object_id;
 277         struct amdgpu_i2c_bus_rec ddc_bus;
 278         struct amdgpu_router router;
 279         struct amdgpu_gpio_rec gpio;
 280         struct amdgpu_hpd hpd;
 281
 282         if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
 283                 return false;
 284
 285         if (crev < 2)
 286                 return false;
 287
 288         obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
 289         path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
 290             (ctx->bios + data_offset +
 291              le16_to_cpu(obj_header->usDisplayPathTableOffset));
 292         con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
 293             (ctx->bios + data_offset +
 294              le16_to_cpu(obj_header->usConnectorObjectTableOffset));
 295         enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
 296             (ctx->bios + data_offset +
 297              le16_to_cpu(obj_header->usEncoderObjectTableOffset));
 298         router_obj = (ATOM_OBJECT_TABLE *)
 299                 (ctx->bios + data_offset +
 300                  le16_to_cpu(obj_header->usRouterObjectTableOffset));
 301         device_support = le16_to_cpu(obj_header->usDeviceSupport);
 302
 303         path_size = 0;
 304         for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
 305                 uint8_t *addr = (uint8_t *) path_obj->asDispPath;
 306                 ATOM_DISPLAY_OBJECT_PATH *path;
 307                 addr += path_size;
 308                 path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
 309                 path_size += le16_to_cpu(path->usSize);
 310
 311                 if (device_support & le16_to_cpu(path->usDeviceTag)) {
 312                         uint8_t con_obj_id, con_obj_num, con_obj_type;
 313
 314                         con_obj_id =
 315                             (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
 316                             >> OBJECT_ID_SHIFT;
 317                         con_obj_num =
 318                             (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK)
 319                             >> ENUM_ID_SHIFT;
 320                         con_obj_type =
 321                             (le16_to_cpu(path->usConnObjectId) &
 322                              OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 323
 324                         connector_type =
 325                                 object_connector_convert[con_obj_id];
 326                         connector_object_id = con_obj_id;
 327
 328                         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
 329                                 continue;
 330
 331                         router.ddc_valid = false;
 332                         router.cd_valid = false;
 333                         for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
 334                                 uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
 335
 336                                 grph_obj_id =
 337                                     (le16_to_cpu(path->usGraphicObjIds[j]) &
 338                                      OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
 339                                 grph_obj_num =
 340                                     (le16_to_cpu(path->usGraphicObjIds[j]) &
 341                                      ENUM_ID_MASK) >> ENUM_ID_SHIFT;
 342                                 grph_obj_type =
 343                                     (le16_to_cpu(path->usGraphicObjIds[j]) &
 344                                      OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 345
 346                                 if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
 347                                         for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
 348                                                 u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
 349                                                 if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
 350                                                         ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 351                                                                 (ctx->bios + data_offset +
 352                                                                  le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
 353                                                         ATOM_ENCODER_CAP_RECORD *cap_record;
 354                                                         u16 caps = 0;
 355
 356                                                         while (record->ucRecordSize > 0 &&
 357                                                                record->ucRecordType > 0 &&
 358                                                                record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 359                                                                 switch (record->ucRecordType) {
 360                                                                 case ATOM_ENCODER_CAP_RECORD_TYPE:
 361                                                                         cap_record =(ATOM_ENCODER_CAP_RECORD *)
 362                                                                                 record;
 363                                                                         caps = le16_to_cpu(cap_record->usEncoderCap);
 364                                                                         break;
 365                                                                 }
 366                                                                 record = (ATOM_COMMON_RECORD_HEADER *)
 367                                                                         ((char *)record + record->ucRecordSize);
 368                                                         }
 369                                                         amdgpu_display_add_encoder(adev, encoder_obj,
 370                                                                                     le16_to_cpu(path->usDeviceTag),
 371                                                                                     caps);
 372                                                 }
 373                                         }
 374                                 } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
 375                                         for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
 376                                                 u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
 377                                                 if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
 378                                                         ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 379                                                                 (ctx->bios + data_offset +
 380                                                                  le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
 381                                                         ATOM_I2C_RECORD *i2c_record;
 382                                                         ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 383                                                         ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
 384                                                         ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
 385                                                         ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
 386                                                                 (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
 387                                                                 (ctx->bios + data_offset +
 388                                                                  le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
 389                                                         u8 *num_dst_objs = (u8 *)
 390                                                                 ((u8 *)router_src_dst_table + 1 +
 391                                                                  (router_src_dst_table->ucNumberOfSrc * 2));
 392                                                         u16 *dst_objs = (u16 *)(num_dst_objs + 1);
 393                                                         int enum_id;
 394
 395                                                         router.router_id = router_obj_id;
 396                                                         for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
 397                                                                 if (le16_to_cpu(path->usConnObjectId) ==
 398                                                                     le16_to_cpu(dst_objs[enum_id]))
 399                                                                         break;
 400                                                         }
 401
 402                                                         while (record->ucRecordSize > 0 &&
 403                                                                record->ucRecordType > 0 &&
 404                                                                record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 405                                                                 switch (record->ucRecordType) {
 406                                                                 case ATOM_I2C_RECORD_TYPE:
 407                                                                         i2c_record =
 408                                                                                 (ATOM_I2C_RECORD *)
 409                                                                                 record;
 410                                                                         i2c_config =
 411                                                                                 (ATOM_I2C_ID_CONFIG_ACCESS *)
 412                                                                                 &i2c_record->sucI2cId;
 413                                                                         router.i2c_info =
 414                                                                                 amdgpu_atombios_lookup_i2c_gpio(adev,
 415                                                                                                        i2c_config->
 416                                                                                                        ucAccess);
 417                                                                         router.i2c_addr = i2c_record->ucI2CAddr >> 1;
 418                                                                         break;
 419                                                                 case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
 420                                                                         ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
 421                                                                                 record;
 422                                                                         router.ddc_valid = true;
 423                                                                         router.ddc_mux_type = ddc_path->ucMuxType;
 424                                                                         router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
 425                                                                         router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
 426                                                                         break;
 427                                                                 case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
 428                                                                         cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
 429                                                                                 record;
 430                                                                         router.cd_valid = true;
 431                                                                         router.cd_mux_type = cd_path->ucMuxType;
 432                                                                         router.cd_mux_control_pin = cd_path->ucMuxControlPin;
 433                                                                         router.cd_mux_state = cd_path->ucMuxState[enum_id];
 434                                                                         break;
 435                                                                 }
 436                                                                 record = (ATOM_COMMON_RECORD_HEADER *)
 437                                                                         ((char *)record + record->ucRecordSize);
 438                                                         }
 439                                                 }
 440                                         }
 441                                 }
 442                         }
 443
 444                         /* look up gpio for ddc, hpd */
 445                         ddc_bus.valid = false;
 446                         hpd.hpd = AMDGPU_HPD_NONE;
 447                         if ((le16_to_cpu(path->usDeviceTag) &
 448                              (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
 449                                 for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
 450                                         if (le16_to_cpu(path->usConnObjectId) ==
 451                                             le16_to_cpu(con_obj->asObjects[j].
 452                                                         usObjectID)) {
 453                                                 ATOM_COMMON_RECORD_HEADER
 454                                                     *record =
 455                                                     (ATOM_COMMON_RECORD_HEADER
 456                                                      *)
 457                                                     (ctx->bios + data_offset +
 458                                                      le16_to_cpu(con_obj->
 459                                                                  asObjects[j].
 460                                                                  usRecordOffset));
 461                                                 ATOM_I2C_RECORD *i2c_record;
 462                                                 ATOM_HPD_INT_RECORD *hpd_record;
 463                                                 ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 464
 465                                                 while (record->ucRecordSize > 0 &&
 466                                                        record->ucRecordType > 0 &&
 467                                                        record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 468                                                         switch (record->ucRecordType) {
 469                                                         case ATOM_I2C_RECORD_TYPE:
 470                                                                 i2c_record =
 471                                                                     (ATOM_I2C_RECORD *)
 472                                                                         record;
 473                                                                 i2c_config =
 474                                                                         (ATOM_I2C_ID_CONFIG_ACCESS *)
 475                                                                         &i2c_record->sucI2cId;
 476                                                                 ddc_bus = amdgpu_atombios_lookup_i2c_gpio(adev,
 477                                                                                                  i2c_config->
 478                                                                                                  ucAccess);
 479                                                                 break;
 480                                                         case ATOM_HPD_INT_RECORD_TYPE:
 481                                                                 hpd_record =
 482                                                                         (ATOM_HPD_INT_RECORD *)
 483                                                                         record;
 484                                                                 gpio = amdgpu_atombios_lookup_gpio(adev,
 485                                                                                           hpd_record->ucHPDIntGPIOID);
 486                                                                 hpd = amdgpu_atombios_get_hpd_info_from_gpio(adev, &gpio);
 487                                                                 hpd.plugged_state = hpd_record->ucPlugged_PinState;
 488                                                                 break;
 489                                                         }
 490                                                         record =
 491                                                             (ATOM_COMMON_RECORD_HEADER
 492                                                              *) ((char *)record
 493                                                                  +
 494                                                                  record->
 495                                                                  ucRecordSize);
 496                                                 }
 497                                                 break;
 498                                         }
 499                                 }
 500                         }
 501
 502                         /* needed for aux chan transactions */
 503                         ddc_bus.hpd = hpd.hpd;
 504
 505                         conn_id = le16_to_cpu(path->usConnObjectId);
 506
 507                         amdgpu_display_add_connector(adev,
 508                                                       conn_id,
 509                                                       le16_to_cpu(path->usDeviceTag),
 510                                                       connector_type, &ddc_bus,
 511                                                       connector_object_id,
 512                                                       &hpd,
 513                                                       &router);
 514
 515                 }
 516         }
 517
 518         amdgpu_link_encoder_connector(adev->ddev);
 519
 520         return true;
 521 }
 522
 523 union firmware_info {
 524         ATOM_FIRMWARE_INFO info;
 525         ATOM_FIRMWARE_INFO_V1_2 info_12;
 526         ATOM_FIRMWARE_INFO_V1_3 info_13;
 527         ATOM_FIRMWARE_INFO_V1_4 info_14;
 528         ATOM_FIRMWARE_INFO_V2_1 info_21;
 529         ATOM_FIRMWARE_INFO_V2_2 info_22;
 530 };
 531
 532 int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
 533 {
 534         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 535         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
 536         uint8_t frev, crev;
 537         uint16_t data_offset;
 538         int ret = -EINVAL;
 539
 540         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 541                                    &frev, &crev, &data_offset)) {
 542                 int i;
 543                 struct amdgpu_pll *ppll = &adev->clock.ppll[0];
 544                 struct amdgpu_pll *spll = &adev->clock.spll;
 545                 struct amdgpu_pll *mpll = &adev->clock.mpll;
 546                 union firmware_info *firmware_info =
 547                         (union firmware_info *)(mode_info->atom_context->bios +
 548                                                 data_offset);
 549                 /* pixel clocks */
 550                 ppll->reference_freq =
 551                     le16_to_cpu(firmware_info->info.usReferenceClock);
 552                 ppll->reference_div = 0;
 553
 554                 ppll->pll_out_min =
 555                         le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
 556                 ppll->pll_out_max =
 557                     le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 558
 559                 ppll->lcd_pll_out_min =
 560                         le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 561                 if (ppll->lcd_pll_out_min == 0)
 562                         ppll->lcd_pll_out_min = ppll->pll_out_min;
 563                 ppll->lcd_pll_out_max =
 564                         le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
 565                 if (ppll->lcd_pll_out_max == 0)
 566                         ppll->lcd_pll_out_max = ppll->pll_out_max;
 567
 568                 if (ppll->pll_out_min == 0)
 569                         ppll->pll_out_min = 64800;
 570
 571                 ppll->pll_in_min =
 572                     le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
 573                 ppll->pll_in_max =
 574                     le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);
 575
 576                 ppll->min_post_div = 2;
 577                 ppll->max_post_div = 0x7f;
 578                 ppll->min_frac_feedback_div = 0;
 579                 ppll->max_frac_feedback_div = 9;
 580                 ppll->min_ref_div = 2;
 581                 ppll->max_ref_div = 0x3ff;
 582                 ppll->min_feedback_div = 4;
 583                 ppll->max_feedback_div = 0xfff;
 584                 ppll->best_vco = 0;
 585
 586                 for (i = 1; i < AMDGPU_MAX_PPLL; i++)
 587                         adev->clock.ppll[i] = *ppll;
 588
 589                 /* system clock */
 590                 spll->reference_freq =
 591                         le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
 592                 spll->reference_div = 0;
 593
 594                 spll->pll_out_min =
 595                     le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
 596                 spll->pll_out_max =
 597                     le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);
 598
 599                 /* ??? */
 600                 if (spll->pll_out_min == 0)
 601                         spll->pll_out_min = 64800;
 602
 603                 spll->pll_in_min =
 604                     le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
 605                 spll->pll_in_max =
 606                     le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
 607
 608                 spll->min_post_div = 1;
 609                 spll->max_post_div = 1;
 610                 spll->min_ref_div = 2;
 611                 spll->max_ref_div = 0xff;
 612                 spll->min_feedback_div = 4;
 613                 spll->max_feedback_div = 0xff;
 614                 spll->best_vco = 0;
 615
 616                 /* memory clock */
 617                 mpll->reference_freq =
 618                         le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
 619                 mpll->reference_div = 0;
 620
 621                 mpll->pll_out_min =
 622                     le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
 623                 mpll->pll_out_max =
 624                     le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);
 625
 626                 /* ??? */
 627                 if (mpll->pll_out_min == 0)
 628                         mpll->pll_out_min = 64800;
 629
 630                 mpll->pll_in_min =
 631                     le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
 632                 mpll->pll_in_max =
 633                     le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);
 634
 635                 adev->clock.default_sclk =
 636                     le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
 637                 adev->clock.default_mclk =
 638                     le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);
 639
 640                 mpll->min_post_div = 1;
 641                 mpll->max_post_div = 1;
 642                 mpll->min_ref_div = 2;
 643                 mpll->max_ref_div = 0xff;
 644                 mpll->min_feedback_div = 4;
 645                 mpll->max_feedback_div = 0xff;
 646                 mpll->best_vco = 0;
 647
 648                 /* disp clock */
 649                 adev->clock.default_dispclk =
 650                         le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
 651                 /* set a reasonable default for DP */
 652                 if (adev->clock.default_dispclk < 53900) {
 653                         DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
 654                                  adev->clock.default_dispclk / 100);
 655                         adev->clock.default_dispclk = 60000;
 656                 }
 657                 adev->clock.dp_extclk =
 658                         le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
 659                 adev->clock.current_dispclk = adev->clock.default_dispclk;
 660
 661                 adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
 662                 if (adev->clock.max_pixel_clock == 0)
 663                         adev->clock.max_pixel_clock = 40000;
 664
 665                 /* not technically a clock, but... */
 666                 adev->mode_info.firmware_flags =
 667                         le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
 668
 669                 ret = 0;
 670         }
 671
 672         adev->pm.current_sclk = adev->clock.default_sclk;
 673         adev->pm.current_mclk = adev->clock.default_mclk;
 674
 675         return ret;
 676 }
 677
 678 union gfx_info {
 679         ATOM_GFX_INFO_V2_1 info;
 680 };
 681
 682 int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
 683 {
 684         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 685         int index = GetIndexIntoMasterTable(DATA, GFX_Info);
 686         uint8_t frev, crev;
 687         uint16_t data_offset;
 688         int ret = -EINVAL;
 689
 690         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 691                                    &frev, &crev, &data_offset)) {
 692                 union gfx_info *gfx_info = (union gfx_info *)
 693                         (mode_info->atom_context->bios + data_offset);
 694
 695                 adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
 696                 adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
 697                 adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
 698                 adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
 699                 adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
 700                 adev->gfx.config.max_texture_channel_caches =
 701                         gfx_info->info.max_texture_channel_caches;
 702
 703                 ret = 0;
 704         }
 705         return ret;
 706 }
 707
 708 union igp_info {
 709         struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 710         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
 711         struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
 712         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
 713         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
 714         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
 715 };
 716
 717 static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
 718                                                  struct amdgpu_atom_ss *ss,
 719                                                  int id)
 720 {
 721         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 722         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 723         u16 data_offset, size;
 724         union igp_info *igp_info;
 725         u8 frev, crev;
 726         u16 percentage = 0, rate = 0;
 727
 728         /* get any igp specific overrides */
 729         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 730                                    &frev, &crev, &data_offset)) {
 731                 igp_info = (union igp_info *)
 732                         (mode_info->atom_context->bios + data_offset);
 733                 switch (crev) {
 734                 case 6:
 735                         switch (id) {
 736                         case ASIC_INTERNAL_SS_ON_TMDS:
 737                                 percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
 738                                 rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
 739                                 break;
 740                         case ASIC_INTERNAL_SS_ON_HDMI:
 741                                 percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
 742                                 rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
 743                                 break;
 744                         case ASIC_INTERNAL_SS_ON_LVDS:
 745                                 percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
 746                                 rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
 747                                 break;
 748                         }
 749                         break;
 750                 case 7:
 751                         switch (id) {
 752                         case ASIC_INTERNAL_SS_ON_TMDS:
 753                                 percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
 754                                 rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
 755                                 break;
 756                         case ASIC_INTERNAL_SS_ON_HDMI:
 757                                 percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
 758                                 rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
 759                                 break;
 760                         case ASIC_INTERNAL_SS_ON_LVDS:
 761                                 percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
 762                                 rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
 763                                 break;
 764                         }
 765                         break;
 766                 case 8:
 767                         switch (id) {
 768                         case ASIC_INTERNAL_SS_ON_TMDS:
 769                                 percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
 770                                 rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
 771                                 break;
 772                         case ASIC_INTERNAL_SS_ON_HDMI:
 773                                 percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
 774                                 rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
 775                                 break;
 776                         case ASIC_INTERNAL_SS_ON_LVDS:
 777                                 percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
 778                                 rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
 779                                 break;
 780                         }
 781                         break;
 782                 case 9:
 783                         switch (id) {
 784                         case ASIC_INTERNAL_SS_ON_TMDS:
 785                                 percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
 786                                 rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
 787                                 break;
 788                         case ASIC_INTERNAL_SS_ON_HDMI:
 789                                 percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
 790                                 rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
 791                                 break;
 792                         case ASIC_INTERNAL_SS_ON_LVDS:
 793                                 percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
 794                                 rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
 795                                 break;
 796                         }
 797                         break;
 798                 default:
 799                         DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
 800                         break;
 801                 }
 802                 if (percentage)
 803                         ss->percentage = percentage;
 804                 if (rate)
 805                         ss->rate = rate;
 806         }
 807 }
 808
 809 union asic_ss_info {
 810         struct _ATOM_ASIC_INTERNAL_SS_INFO info;
 811         struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
 812         struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
 813 };
 814
 815 union asic_ss_assignment {
 816         struct _ATOM_ASIC_SS_ASSIGNMENT v1;
 817         struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
 818         struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
 819 };
 820
 821 bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
 822                                       struct amdgpu_atom_ss *ss,
 823                                       int id, u32 clock)
 824 {
 825         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 826         int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
 827         uint16_t data_offset, size;
 828         union asic_ss_info *ss_info;
 829         union asic_ss_assignment *ss_assign;
 830         uint8_t frev, crev;
 831         int i, num_indices;
 832
 833         if (id == ASIC_INTERNAL_MEMORY_SS) {
 834                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
 835                         return false;
 836         }
 837         if (id == ASIC_INTERNAL_ENGINE_SS) {
 838                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
 839                         return false;
 840         }
 841
 842         memset(ss, 0, sizeof(struct amdgpu_atom_ss));
 843         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 844                                    &frev, &crev, &data_offset)) {
 845
 846                 ss_info =
 847                         (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
 848
 849                 switch (frev) {
 850                 case 1:
 851                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 852                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT);
 853
 854                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
 855                         for (i = 0; i < num_indices; i++) {
 856                                 if ((ss_assign->v1.ucClockIndication == id) &&
 857                                     (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
 858                                         ss->percentage =
 859                                                 le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
 860                                         ss->type = ss_assign->v1.ucSpreadSpectrumMode;
 861                                         ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
 862                                         ss->percentage_divider = 100;
 863                                         return true;
 864                                 }
 865                                 ss_assign = (union asic_ss_assignment *)
 866                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
 867                         }
 868                         break;
 869                 case 2:
 870                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 871                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
 872                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
 873                         for (i = 0; i < num_indices; i++) {
 874                                 if ((ss_assign->v2.ucClockIndication == id) &&
 875                                     (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
 876                                         ss->percentage =
 877                                                 le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
 878                                         ss->type = ss_assign->v2.ucSpreadSpectrumMode;
 879                                         ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
 880                                         ss->percentage_divider = 100;
 881                                         if ((crev == 2) &&
 882                                             ((id == ASIC_INTERNAL_ENGINE_SS) ||
 883                                              (id == ASIC_INTERNAL_MEMORY_SS)))
 884                                                 ss->rate /= 100;
 885                                         return true;
 886                                 }
 887                                 ss_assign = (union asic_ss_assignment *)
 888                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
 889                         }
 890                         break;
 891                 case 3:
 892                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 893                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
 894                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
 895                         for (i = 0; i < num_indices; i++) {
 896                                 if ((ss_assign->v3.ucClockIndication == id) &&
 897                                     (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
 898                                         ss->percentage =
 899                                                 le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
 900                                         ss->type = ss_assign->v3.ucSpreadSpectrumMode;
 901                                         ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
 902                                         if (ss_assign->v3.ucSpreadSpectrumMode &
 903                                             SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
 904                                                 ss->percentage_divider = 1000;
 905                                         else
 906                                                 ss->percentage_divider = 100;
 907                                         if ((id == ASIC_INTERNAL_ENGINE_SS) ||
 908                                             (id == ASIC_INTERNAL_MEMORY_SS))
 909                                                 ss->rate /= 100;
 910                                         if (adev->flags & AMD_IS_APU)
 911                                                 amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
 912                                         return true;
 913                                 }
 914                                 ss_assign = (union asic_ss_assignment *)
 915                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
 916                         }
 917                         break;
 918                 default:
 919                         DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
 920                         break;
 921                 }
 922
 923         }
 924         return false;
 925 }
 926
 927 union get_clock_dividers {
 928         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
 929         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
 930         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
 931         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
 932         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
 933         struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
 934         struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
 935 };
 936
 937 int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
 938                                        u8 clock_type,
 939                                        u32 clock,
 940                                        bool strobe_mode,
 941                                        struct atom_clock_dividers *dividers)
 942 {
 943         union get_clock_dividers args;
 944         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
 945         u8 frev, crev;
 946
 947         memset(&args, 0, sizeof(args));
 948         memset(dividers, 0, sizeof(struct atom_clock_dividers));
 949
 950         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
 951                 return -EINVAL;
 952
 953         switch (crev) {
 954         case 4:
 955                 /* fusion */
 956                 args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
 957
 958                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
 959
 960                 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
 961                 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
 962                 break;
 963         case 6:
 964                 /* CI */
 965                 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
 966                 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
 967                 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
 968
 969                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
 970
 971                 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
 972                 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
 973                 dividers->ref_div = args.v6_out.ucPllRefDiv;
 974                 dividers->post_div = args.v6_out.ucPllPostDiv;
 975                 dividers->flags = args.v6_out.ucPllCntlFlag;
 976                 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
 977                 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
 978                 break;
 979         default:
 980                 return -EINVAL;
 981         }
 982         return 0;
 983 }
 984
 985 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
 986                                             u32 clock,
 987                                             bool strobe_mode,
 988                                             struct atom_mpll_param *mpll_param)
 989 {
 990         COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
 991         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
 992         u8 frev, crev;
 993
 994         memset(&args, 0, sizeof(args));
 995         memset(mpll_param, 0, sizeof(struct atom_mpll_param));
 996
 997         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
 998                 return -EINVAL;
 999
1000         switch (frev) {
1001         case 2:
1002                 switch (crev) {
1003                 case 1:
1004                         /* SI */
1005                         args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1006                         args.ucInputFlag = 0;
1007                         if (strobe_mode)
1008                                 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1009
1010                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1011
1012                         mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1013                         mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1014                         mpll_param->post_div = args.ucPostDiv;
1015                         mpll_param->dll_speed = args.ucDllSpeed;
1016                         mpll_param->bwcntl = args.ucBWCntl;
1017                         mpll_param->vco_mode =
1018                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1019                         mpll_param->yclk_sel =
1020                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1021                         mpll_param->qdr =
1022                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1023                         mpll_param->half_rate =
1024                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1025                         break;
1026                 default:
1027                         return -EINVAL;
1028                 }
1029                 break;
1030         default:
1031                 return -EINVAL;
1032         }
1033         return 0;
1034 }
1035
1036 uint32_t amdgpu_atombios_get_engine_clock(struct amdgpu_device *adev)
1037 {
1038         GET_ENGINE_CLOCK_PS_ALLOCATION args;
1039         int index = GetIndexIntoMasterTable(COMMAND, GetEngineClock);
1040
1041         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1042         return le32_to_cpu(args.ulReturnEngineClock);
1043 }
1044
1045 uint32_t amdgpu_atombios_get_memory_clock(struct amdgpu_device *adev)
1046 {
1047         GET_MEMORY_CLOCK_PS_ALLOCATION args;
1048         int index = GetIndexIntoMasterTable(COMMAND, GetMemoryClock);
1049
1050         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1051         return le32_to_cpu(args.ulReturnMemoryClock);
1052 }
1053
1054 void amdgpu_atombios_set_engine_clock(struct amdgpu_device *adev,
1055                                       uint32_t eng_clock)
1056 {
1057         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1058         int index = GetIndexIntoMasterTable(COMMAND, SetEngineClock);
1059
1060         args.ulTargetEngineClock = cpu_to_le32(eng_clock);      /* 10 khz */
1061
1062         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1063 }
1064
1065 void amdgpu_atombios_set_memory_clock(struct amdgpu_device *adev,
1066                                       uint32_t mem_clock)
1067 {
1068         SET_MEMORY_CLOCK_PS_ALLOCATION args;
1069         int index = GetIndexIntoMasterTable(COMMAND, SetMemoryClock);
1070
1071         if (adev->flags & AMD_IS_APU)
1072                 return;
1073
1074         args.ulTargetMemoryClock = cpu_to_le32(mem_clock);      /* 10 khz */
1075
1076         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1077 }
1078
1079 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1080                                              u32 eng_clock, u32 mem_clock)
1081 {
1082         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1083         int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1084         u32 tmp;
1085
1086         memset(&args, 0, sizeof(args));
1087
1088         tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1089         tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1090
1091         args.ulTargetEngineClock = cpu_to_le32(tmp);
1092         if (mem_clock)
1093                 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1094
1095         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1096 }
1097
1098 union set_voltage {
1099         struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1100         struct _SET_VOLTAGE_PARAMETERS v1;
1101         struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1102         struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1103 };
1104
1105 void amdgpu_atombios_set_voltage(struct amdgpu_device *adev,
1106                                  u16 voltage_level,
1107                                  u8 voltage_type)
1108 {
1109         union set_voltage args;
1110         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1111         u8 frev, crev, volt_index = voltage_level;
1112
1113         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1114                 return;
1115
1116         /* 0xff01 is a flag rather then an actual voltage */
1117         if (voltage_level == 0xff01)
1118                 return;
1119
1120         switch (crev) {
1121         case 1:
1122                 args.v1.ucVoltageType = voltage_type;
1123                 args.v1.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_ALL_SOURCE;
1124                 args.v1.ucVoltageIndex = volt_index;
1125                 break;
1126         case 2:
1127                 args.v2.ucVoltageType = voltage_type;
1128                 args.v2.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_SET_VOLTAGE;
1129                 args.v2.usVoltageLevel = cpu_to_le16(voltage_level);
1130                 break;
1131         case 3:
1132                 args.v3.ucVoltageType = voltage_type;
1133                 args.v3.ucVoltageMode = ATOM_SET_VOLTAGE;
1134                 args.v3.usVoltageLevel = cpu_to_le16(voltage_level);
1135                 break;
1136         default:
1137                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1138                 return;
1139         }
1140
1141         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1142 }
1143
1144 int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
1145                                               u16 *leakage_id)
1146 {
1147         union set_voltage args;
1148         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1149         u8 frev, crev;
1150
1151         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1152                 return -EINVAL;
1153
1154         switch (crev) {
1155         case 3:
1156         case 4:
1157                 args.v3.ucVoltageType = 0;
1158                 args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
1159                 args.v3.usVoltageLevel = 0;
1160
1161                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1162
1163                 *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
1164                 break;
1165         default:
1166                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1167                 return -EINVAL;
1168         }
1169
1170         return 0;
1171 }
1172
1173 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
1174                                                              u16 *vddc, u16 *vddci,
1175                                                              u16 virtual_voltage_id,
1176                                                              u16 vbios_voltage_id)
1177 {
1178         int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
1179         u8 frev, crev;
1180         u16 data_offset, size;
1181         int i, j;
1182         ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
1183         u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
1184
1185         *vddc = 0;
1186         *vddci = 0;
1187
1188         if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1189                                     &frev, &crev, &data_offset))
1190                 return -EINVAL;
1191
1192         profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
1193                 (adev->mode_info.atom_context->bios + data_offset);
1194
1195         switch (frev) {
1196         case 1:
1197                 return -EINVAL;
1198         case 2:
1199                 switch (crev) {
1200                 case 1:
1201                         if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
1202                                 return -EINVAL;
1203                         leakage_bin = (u16 *)
1204                                 (adev->mode_info.atom_context->bios + data_offset +
1205                                  le16_to_cpu(profile->usLeakageBinArrayOffset));
1206                         vddc_id_buf = (u16 *)
1207                                 (adev->mode_info.atom_context->bios + data_offset +
1208                                  le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
1209                         vddc_buf = (u16 *)
1210                                 (adev->mode_info.atom_context->bios + data_offset +
1211                                  le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
1212                         vddci_id_buf = (u16 *)
1213                                 (adev->mode_info.atom_context->bios + data_offset +
1214                                  le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
1215                         vddci_buf = (u16 *)
1216                                 (adev->mode_info.atom_context->bios + data_offset +
1217                                  le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
1218
1219                         if (profile->ucElbVDDC_Num > 0) {
1220                                 for (i = 0; i < profile->ucElbVDDC_Num; i++) {
1221                                         if (vddc_id_buf[i] == virtual_voltage_id) {
1222                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1223                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1224                                                                 *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
1225                                                                 break;
1226                                                         }
1227                                                 }
1228                                                 break;
1229                                         }
1230                                 }
1231                         }
1232                         if (profile->ucElbVDDCI_Num > 0) {
1233                                 for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
1234                                         if (vddci_id_buf[i] == virtual_voltage_id) {
1235                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1236                                                         if (vbios_voltage_id <= leakage_bin[j]) {
1237                                                                 *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
1238                                                                 break;
1239                                                         }
1240                                                 }
1241                                                 break;
1242                                         }
1243                                 }
1244                         }
1245                         break;
1246                 default:
1247                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1248                         return -EINVAL;
1249                 }
1250                 break;
1251         default:
1252                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1253                 return -EINVAL;
1254         }
1255
1256         return 0;
1257 }
1258
1259 union get_voltage_info {
1260         struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
1261         struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
1262 };
1263
1264 int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
1265                                     u16 virtual_voltage_id,
1266                                     u16 *voltage)
1267 {
1268         int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
1269         u32 entry_id;
1270         u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
1271         union get_voltage_info args;
1272
1273         for (entry_id = 0; entry_id < count; entry_id++) {
1274                 if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
1275                     virtual_voltage_id)
1276                         break;
1277         }
1278
1279         if (entry_id >= count)
1280                 return -EINVAL;
1281
1282         args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
1283         args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
1284         args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
1285         args.in.ulSCLKFreq =
1286                 cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
1287
1288         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1289
1290         *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
1291
1292         return 0;
1293 }
1294
1295 union voltage_object_info {
1296         struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1297         struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1298         struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1299 };
1300
1301 union voltage_object {
1302         struct _ATOM_VOLTAGE_OBJECT v1;
1303         struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1304         union _ATOM_VOLTAGE_OBJECT_V3 v3;
1305 };
1306
1307
1308 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1309                                                                         u8 voltage_type, u8 voltage_mode)
1310 {
1311         u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1312         u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1313         u8 *start = (u8*)v3;
1314
1315         while (offset < size) {
1316                 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1317                 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1318                     (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1319                         return vo;
1320                 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1321         }
1322         return NULL;
1323 }
1324
1325 bool
1326 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1327                                 u8 voltage_type, u8 voltage_mode)
1328 {
1329         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1330         u8 frev, crev;
1331         u16 data_offset, size;
1332         union voltage_object_info *voltage_info;
1333
1334         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1335                                    &frev, &crev, &data_offset)) {
1336                 voltage_info = (union voltage_object_info *)
1337                         (adev->mode_info.atom_context->bios + data_offset);
1338
1339                 switch (frev) {
1340                 case 3:
1341                         switch (crev) {
1342                         case 1:
1343                                 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1344                                                                   voltage_type, voltage_mode))
1345                                         return true;
1346                                 break;
1347                         default:
1348                                 DRM_ERROR("unknown voltage object table\n");
1349                                 return false;
1350                         }
1351                         break;
1352                 default:
1353                         DRM_ERROR("unknown voltage object table\n");
1354                         return false;
1355                 }
1356
1357         }
1358         return false;
1359 }
1360
1361 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1362                                       u8 voltage_type, u8 voltage_mode,
1363                                       struct atom_voltage_table *voltage_table)
1364 {
1365         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1366         u8 frev, crev;
1367         u16 data_offset, size;
1368         int i;
1369         union voltage_object_info *voltage_info;
1370         union voltage_object *voltage_object = NULL;
1371
1372         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1373                                    &frev, &crev, &data_offset)) {
1374                 voltage_info = (union voltage_object_info *)
1375                         (adev->mode_info.atom_context->bios + data_offset);
1376
1377                 switch (frev) {
1378                 case 3:
1379                         switch (crev) {
1380                         case 1:
1381                                 voltage_object = (union voltage_object *)
1382                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1383                                                                       voltage_type, voltage_mode);
1384                                 if (voltage_object) {
1385                                         ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1386                                                 &voltage_object->v3.asGpioVoltageObj;
1387                                         VOLTAGE_LUT_ENTRY_V2 *lut;
1388                                         if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1389                                                 return -EINVAL;
1390                                         lut = &gpio->asVolGpioLut[0];
1391                                         for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1392                                                 voltage_table->entries[i].value =
1393                                                         le16_to_cpu(lut->usVoltageValue);
1394                                                 voltage_table->entries[i].smio_low =
1395                                                         le32_to_cpu(lut->ulVoltageId);
1396                                                 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1397                                                         ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1398                                         }
1399                                         voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1400                                         voltage_table->count = gpio->ucGpioEntryNum;
1401                                         voltage_table->phase_delay = gpio->ucPhaseDelay;
1402                                         return 0;
1403                                 }
1404                                 break;
1405                         default:
1406                                 DRM_ERROR("unknown voltage object table\n");
1407                                 return -EINVAL;
1408                         }
1409                         break;
1410                 default:
1411                         DRM_ERROR("unknown voltage object table\n");
1412                         return -EINVAL;
1413                 }
1414         }
1415         return -EINVAL;
1416 }
1417
1418 union vram_info {
1419         struct _ATOM_VRAM_INFO_V3 v1_3;
1420         struct _ATOM_VRAM_INFO_V4 v1_4;
1421         struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1422 };
1423
1424 #define MEM_ID_MASK           0xff000000
1425 #define MEM_ID_SHIFT          24
1426 #define CLOCK_RANGE_MASK      0x00ffffff
1427 #define CLOCK_RANGE_SHIFT     0
1428 #define LOW_NIBBLE_MASK       0xf
1429 #define DATA_EQU_PREV         0
1430 #define DATA_FROM_TABLE       4
1431
1432 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1433                                       u8 module_index,
1434                                       struct atom_mc_reg_table *reg_table)
1435 {
1436         int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1437         u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1438         u32 i = 0, j;
1439         u16 data_offset, size;
1440         union vram_info *vram_info;
1441
1442         memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1443
1444         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1445                                    &frev, &crev, &data_offset)) {
1446                 vram_info = (union vram_info *)
1447                         (adev->mode_info.atom_context->bios + data_offset);
1448                 switch (frev) {
1449                 case 1:
1450                         DRM_ERROR("old table version %d, %d\n", frev, crev);
1451                         return -EINVAL;
1452                 case 2:
1453                         switch (crev) {
1454                         case 1:
1455                                 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1456                                         ATOM_INIT_REG_BLOCK *reg_block =
1457                                                 (ATOM_INIT_REG_BLOCK *)
1458                                                 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1459                                         ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1460                                                 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1461                                                 ((u8 *)reg_block + (2 * sizeof(u16)) +
1462                                                  le16_to_cpu(reg_block->usRegIndexTblSize));
1463                                         ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1464                                         num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1465                                                            sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1466                                         if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1467                                                 return -EINVAL;
1468                                         while (i < num_entries) {
1469                                                 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1470                                                         break;
1471                                                 reg_table->mc_reg_address[i].s1 =
1472                                                         (u16)(le16_to_cpu(format->usRegIndex));
1473                                                 reg_table->mc_reg_address[i].pre_reg_data =
1474                                                         (u8)(format->ucPreRegDataLength);
1475                                                 i++;
1476                                                 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1477                                                         ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1478                                         }
1479                                         reg_table->last = i;
1480                                         while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1481                                                (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1482                                                 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1483                                                                 >> MEM_ID_SHIFT);
1484                                                 if (module_index == t_mem_id) {
1485                                                         reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1486                                                                 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1487                                                                       >> CLOCK_RANGE_SHIFT);
1488                                                         for (i = 0, j = 1; i < reg_table->last; i++) {
1489                                                                 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1490                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1491                                                                                 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1492                                                                         j++;
1493                                                                 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1494                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1495                                                                                 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1496                                                                 }
1497                                                         }
1498                                                         num_ranges++;
1499                                                 }
1500                                                 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1501                                                         ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1502                                         }
1503                                         if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1504                                                 return -EINVAL;
1505                                         reg_table->num_entries = num_ranges;
1506                                 } else
1507                                         return -EINVAL;
1508                                 break;
1509                         default:
1510                                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1511                                 return -EINVAL;
1512                         }
1513                         break;
1514                 default:
1515                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1516                         return -EINVAL;
1517                 }
1518                 return 0;
1519         }
1520         return -EINVAL;
1521 }
1522
1523 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1524 {
1525         int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1526         u8 frev, crev;
1527         u16 data_offset, size;
1528
1529         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1530                                           &frev, &crev, &data_offset))
1531                 return true;
1532
1533         return false;
1534 }
1535
1536 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1537 {
1538         uint32_t bios_6_scratch;
1539
1540         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1541
1542         if (lock) {
1543                 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1544                 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1545         } else {
1546                 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1547                 bios_6_scratch |= ATOM_S6_ACC_MODE;
1548         }
1549
1550         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1551 }
1552
1553 void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1554 {
1555         uint32_t bios_2_scratch, bios_6_scratch;
1556
1557         bios_2_scratch = RREG32(mmBIOS_SCRATCH_2);
1558         bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1559
1560         /* let the bios control the backlight */
1561         bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1562
1563         /* tell the bios not to handle mode switching */
1564         bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1565
1566         /* clear the vbios dpms state */
1567         bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1568
1569         WREG32(mmBIOS_SCRATCH_2, bios_2_scratch);
1570         WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1571 }
1572
1573 void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev)
1574 {
1575         int i;
1576
1577         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1578                 adev->bios_scratch[i] = RREG32(mmBIOS_SCRATCH_0 + i);
1579 }
1580
1581 void amdgpu_atombios_scratch_regs_restore(struct amdgpu_device *adev)
1582 {
1583         int i;
1584
1585         for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1586                 WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
1587 }
1588
1589 /* Atom needs data in little endian format
1590  * so swap as appropriate when copying data to
1591  * or from atom. Note that atom operates on
1592  * dw units.
1593  */
1594 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1595 {
1596 #ifdef __BIG_ENDIAN
1597         u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
1598         u32 *dst32, *src32;
1599         int i;
1600
1601         memcpy(src_tmp, src, num_bytes);
1602         src32 = (u32 *)src_tmp;
1603         dst32 = (u32 *)dst_tmp;
1604         if (to_le) {
1605                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1606                         dst32[i] = cpu_to_le32(src32[i]);
1607                 memcpy(dst, dst_tmp, num_bytes);
1608         } else {
1609                 u8 dws = num_bytes & ~3;
1610                 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1611                         dst32[i] = le32_to_cpu(src32[i]);
1612                 memcpy(dst, dst_tmp, dws);
1613                 if (num_bytes % 4) {
1614                         for (i = 0; i < (num_bytes % 4); i++)
1615                                 dst[dws+i] = dst_tmp[dws+i];
1616                 }
1617         }
1618 #else
1619         memcpy(dst, src, num_bytes);
1620 #endif
1621 }