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
  27 #include <drm/amdgpu_drm.h>
  28 #include "amdgpu.h"
  29 #include "amdgpu_atombios.h"
  30 #include "amdgpu_atomfirmware.h"
  31 #include "amdgpu_i2c.h"
  32 #include "amdgpu_display.h"
  33
  34 #include "atom.h"
  35 #include "atom-bits.h"
  36 #include "atombios_encoders.h"
  37 #include "bif/bif_4_1_d.h"
  38
  39 static void amdgpu_atombios_lookup_i2c_gpio_quirks(struct amdgpu_device *adev,
  40                                           ATOM_GPIO_I2C_ASSIGMENT *gpio,
  41                                           u8 index)
  42 {
  43
  44 }
  45
  46 static struct amdgpu_i2c_bus_rec amdgpu_atombios_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio)
  47 {
  48         struct amdgpu_i2c_bus_rec i2c;
  49
  50         memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
  51
  52         i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex);
  53         i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex);
  54         i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex);
  55         i2c.en_data_reg = le16_to_cpu(gpio->usDataEnRegisterIndex);
  56         i2c.y_clk_reg = le16_to_cpu(gpio->usClkY_RegisterIndex);
  57         i2c.y_data_reg = le16_to_cpu(gpio->usDataY_RegisterIndex);
  58         i2c.a_clk_reg = le16_to_cpu(gpio->usClkA_RegisterIndex);
  59         i2c.a_data_reg = le16_to_cpu(gpio->usDataA_RegisterIndex);
  60         i2c.mask_clk_mask = (1 << gpio->ucClkMaskShift);
  61         i2c.mask_data_mask = (1 << gpio->ucDataMaskShift);
  62         i2c.en_clk_mask = (1 << gpio->ucClkEnShift);
  63         i2c.en_data_mask = (1 << gpio->ucDataEnShift);
  64         i2c.y_clk_mask = (1 << gpio->ucClkY_Shift);
  65         i2c.y_data_mask = (1 << gpio->ucDataY_Shift);
  66         i2c.a_clk_mask = (1 << gpio->ucClkA_Shift);
  67         i2c.a_data_mask = (1 << gpio->ucDataA_Shift);
  68
  69         if (gpio->sucI2cId.sbfAccess.bfHW_Capable)
  70                 i2c.hw_capable = true;
  71         else
  72                 i2c.hw_capable = false;
  73
  74         if (gpio->sucI2cId.ucAccess == 0xa0)
  75                 i2c.mm_i2c = true;
  76         else
  77                 i2c.mm_i2c = false;
  78
  79         i2c.i2c_id = gpio->sucI2cId.ucAccess;
  80
  81         if (i2c.mask_clk_reg)
  82                 i2c.valid = true;
  83         else
  84                 i2c.valid = false;
  85
  86         return i2c;
  87 }
  88
  89 struct amdgpu_i2c_bus_rec amdgpu_atombios_lookup_i2c_gpio(struct amdgpu_device *adev,
  90                                                           uint8_t id)
  91 {
  92         struct atom_context *ctx = adev->mode_info.atom_context;
  93         ATOM_GPIO_I2C_ASSIGMENT *gpio;
  94         struct amdgpu_i2c_bus_rec i2c;
  95         int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
  96         struct _ATOM_GPIO_I2C_INFO *i2c_info;
  97         uint16_t data_offset, size;
  98         int i, num_indices;
  99
 100         memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
 101         i2c.valid = false;
 102
 103         if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 104                 i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
 105
 106                 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 107                         sizeof(ATOM_GPIO_I2C_ASSIGMENT);
 108
 109                 gpio = &i2c_info->asGPIO_Info[0];
 110                 for (i = 0; i < num_indices; i++) {
 111
 112                         amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
 113
 114                         if (gpio->sucI2cId.ucAccess == id) {
 115                                 i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
 116                                 break;
 117                         }
 118                         gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
 119                                 ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
 120                 }
 121         }
 122
 123         return i2c;
 124 }
 125
 126 void amdgpu_atombios_i2c_init(struct amdgpu_device *adev)
 127 {
 128         struct atom_context *ctx = adev->mode_info.atom_context;
 129         ATOM_GPIO_I2C_ASSIGMENT *gpio;
 130         struct amdgpu_i2c_bus_rec i2c;
 131         int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
 132         struct _ATOM_GPIO_I2C_INFO *i2c_info;
 133         uint16_t data_offset, size;
 134         int i, num_indices;
 135         char stmp[32];
 136
 137         if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 138                 i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
 139
 140                 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 141                         sizeof(ATOM_GPIO_I2C_ASSIGMENT);
 142
 143                 gpio = &i2c_info->asGPIO_Info[0];
 144                 for (i = 0; i < num_indices; i++) {
 145                         amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
 146
 147                         i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
 148
 149                         if (i2c.valid) {
 150                                 sprintf(stmp, "0x%x", i2c.i2c_id);
 151                                 adev->i2c_bus[i] = amdgpu_i2c_create(adev_to_drm(adev), &i2c, stmp);
 152                         }
 153                         gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
 154                                 ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
 155                 }
 156         }
 157 }
 158
 159 struct amdgpu_gpio_rec
 160 amdgpu_atombios_lookup_gpio(struct amdgpu_device *adev,
 161                             u8 id)
 162 {
 163         struct atom_context *ctx = adev->mode_info.atom_context;
 164         struct amdgpu_gpio_rec gpio;
 165         int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
 166         struct _ATOM_GPIO_PIN_LUT *gpio_info;
 167         ATOM_GPIO_PIN_ASSIGNMENT *pin;
 168         u16 data_offset, size;
 169         int i, num_indices;
 170
 171         memset(&gpio, 0, sizeof(struct amdgpu_gpio_rec));
 172         gpio.valid = false;
 173
 174         if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 175                 gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);
 176
 177                 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 178                         sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
 179
 180                 pin = gpio_info->asGPIO_Pin;
 181                 for (i = 0; i < num_indices; i++) {
 182                         if (id == pin->ucGPIO_ID) {
 183                                 gpio.id = pin->ucGPIO_ID;
 184                                 gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex);
 185                                 gpio.shift = pin->ucGpioPinBitShift;
 186                                 gpio.mask = (1 << pin->ucGpioPinBitShift);
 187                                 gpio.valid = true;
 188                                 break;
 189                         }
 190                         pin = (ATOM_GPIO_PIN_ASSIGNMENT *)
 191                                 ((u8 *)pin + sizeof(ATOM_GPIO_PIN_ASSIGNMENT));
 192                 }
 193         }
 194
 195         return gpio;
 196 }
 197
 198 static struct amdgpu_hpd
 199 amdgpu_atombios_get_hpd_info_from_gpio(struct amdgpu_device *adev,
 200                                        struct amdgpu_gpio_rec *gpio)
 201 {
 202         struct amdgpu_hpd hpd;
 203         u32 reg;
 204
 205         memset(&hpd, 0, sizeof(struct amdgpu_hpd));
 206
 207         reg = amdgpu_display_hpd_get_gpio_reg(adev);
 208
 209         hpd.gpio = *gpio;
 210         if (gpio->reg == reg) {
 211                 switch(gpio->mask) {
 212                 case (1 << 0):
 213                         hpd.hpd = AMDGPU_HPD_1;
 214                         break;
 215                 case (1 << 8):
 216                         hpd.hpd = AMDGPU_HPD_2;
 217                         break;
 218                 case (1 << 16):
 219                         hpd.hpd = AMDGPU_HPD_3;
 220                         break;
 221                 case (1 << 24):
 222                         hpd.hpd = AMDGPU_HPD_4;
 223                         break;
 224                 case (1 << 26):
 225                         hpd.hpd = AMDGPU_HPD_5;
 226                         break;
 227                 case (1 << 28):
 228                         hpd.hpd = AMDGPU_HPD_6;
 229                         break;
 230                 default:
 231                         hpd.hpd = AMDGPU_HPD_NONE;
 232                         break;
 233                 }
 234         } else
 235                 hpd.hpd = AMDGPU_HPD_NONE;
 236         return hpd;
 237 }
 238
 239 static const int object_connector_convert[] = {
 240         DRM_MODE_CONNECTOR_Unknown,
 241         DRM_MODE_CONNECTOR_DVII,
 242         DRM_MODE_CONNECTOR_DVII,
 243         DRM_MODE_CONNECTOR_DVID,
 244         DRM_MODE_CONNECTOR_DVID,
 245         DRM_MODE_CONNECTOR_VGA,
 246         DRM_MODE_CONNECTOR_Composite,
 247         DRM_MODE_CONNECTOR_SVIDEO,
 248         DRM_MODE_CONNECTOR_Unknown,
 249         DRM_MODE_CONNECTOR_Unknown,
 250         DRM_MODE_CONNECTOR_9PinDIN,
 251         DRM_MODE_CONNECTOR_Unknown,
 252         DRM_MODE_CONNECTOR_HDMIA,
 253         DRM_MODE_CONNECTOR_HDMIB,
 254         DRM_MODE_CONNECTOR_LVDS,
 255         DRM_MODE_CONNECTOR_9PinDIN,
 256         DRM_MODE_CONNECTOR_Unknown,
 257         DRM_MODE_CONNECTOR_Unknown,
 258         DRM_MODE_CONNECTOR_Unknown,
 259         DRM_MODE_CONNECTOR_DisplayPort,
 260         DRM_MODE_CONNECTOR_eDP,
 261         DRM_MODE_CONNECTOR_Unknown
 262 };
 263
 264 bool amdgpu_atombios_has_dce_engine_info(struct amdgpu_device *adev)
 265 {
 266         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 267         struct atom_context *ctx = mode_info->atom_context;
 268         int index = GetIndexIntoMasterTable(DATA, Object_Header);
 269         u16 size, data_offset;
 270         u8 frev, crev;
 271         ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
 272         ATOM_OBJECT_HEADER *obj_header;
 273
 274         if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
 275                 return false;
 276
 277         if (crev < 2)
 278                 return false;
 279
 280         obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
 281         path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
 282             (ctx->bios + data_offset +
 283              le16_to_cpu(obj_header->usDisplayPathTableOffset));
 284
 285         if (path_obj->ucNumOfDispPath)
 286                 return true;
 287         else
 288                 return false;
 289 }
 290
 291 bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *adev)
 292 {
 293         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 294         struct atom_context *ctx = mode_info->atom_context;
 295         int index = GetIndexIntoMasterTable(DATA, Object_Header);
 296         u16 size, data_offset;
 297         u8 frev, crev;
 298         ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
 299         ATOM_ENCODER_OBJECT_TABLE *enc_obj;
 300         ATOM_OBJECT_TABLE *router_obj;
 301         ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
 302         ATOM_OBJECT_HEADER *obj_header;
 303         int i, j, k, path_size, device_support;
 304         int connector_type;
 305         u16 conn_id, connector_object_id;
 306         struct amdgpu_i2c_bus_rec ddc_bus;
 307         struct amdgpu_router router;
 308         struct amdgpu_gpio_rec gpio;
 309         struct amdgpu_hpd hpd;
 310
 311         if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
 312                 return false;
 313
 314         if (crev < 2)
 315                 return false;
 316
 317         obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
 318         path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
 319             (ctx->bios + data_offset +
 320              le16_to_cpu(obj_header->usDisplayPathTableOffset));
 321         con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
 322             (ctx->bios + data_offset +
 323              le16_to_cpu(obj_header->usConnectorObjectTableOffset));
 324         enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
 325             (ctx->bios + data_offset +
 326              le16_to_cpu(obj_header->usEncoderObjectTableOffset));
 327         router_obj = (ATOM_OBJECT_TABLE *)
 328                 (ctx->bios + data_offset +
 329                  le16_to_cpu(obj_header->usRouterObjectTableOffset));
 330         device_support = le16_to_cpu(obj_header->usDeviceSupport);
 331
 332         path_size = 0;
 333         for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
 334                 uint8_t *addr = (uint8_t *) path_obj->asDispPath;
 335                 ATOM_DISPLAY_OBJECT_PATH *path;
 336                 addr += path_size;
 337                 path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
 338                 path_size += le16_to_cpu(path->usSize);
 339
 340                 if (device_support & le16_to_cpu(path->usDeviceTag)) {
 341                         uint8_t con_obj_id =
 342                             (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
 343                             >> OBJECT_ID_SHIFT;
 344
 345                         /* Skip TV/CV support */
 346                         if ((le16_to_cpu(path->usDeviceTag) ==
 347                              ATOM_DEVICE_TV1_SUPPORT) ||
 348                             (le16_to_cpu(path->usDeviceTag) ==
 349                              ATOM_DEVICE_CV_SUPPORT))
 350                                 continue;
 351
 352                         if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
 353                                 DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
 354                                           con_obj_id, le16_to_cpu(path->usDeviceTag));
 355                                 continue;
 356                         }
 357
 358                         connector_type =
 359                                 object_connector_convert[con_obj_id];
 360                         connector_object_id = con_obj_id;
 361
 362                         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
 363                                 continue;
 364
 365                         router.ddc_valid = false;
 366                         router.cd_valid = false;
 367                         for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
 368                                 uint8_t grph_obj_type =
 369                                     (le16_to_cpu(path->usGraphicObjIds[j]) &
 370                                      OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 371
 372                                 if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
 373                                         for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
 374                                                 u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
 375                                                 if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
 376                                                         ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 377                                                                 (ctx->bios + data_offset +
 378                                                                  le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
 379                                                         ATOM_ENCODER_CAP_RECORD *cap_record;
 380                                                         u16 caps = 0;
 381
 382                                                         while (record->ucRecordSize > 0 &&
 383                                                                record->ucRecordType > 0 &&
 384                                                                record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 385                                                                 switch (record->ucRecordType) {
 386                                                                 case ATOM_ENCODER_CAP_RECORD_TYPE:
 387                                                                         cap_record =(ATOM_ENCODER_CAP_RECORD *)
 388                                                                                 record;
 389                                                                         caps = le16_to_cpu(cap_record->usEncoderCap);
 390                                                                         break;
 391                                                                 }
 392                                                                 record = (ATOM_COMMON_RECORD_HEADER *)
 393                                                                         ((char *)record + record->ucRecordSize);
 394                                                         }
 395                                                         amdgpu_display_add_encoder(adev, encoder_obj,
 396                                                                                     le16_to_cpu(path->usDeviceTag),
 397                                                                                     caps);
 398                                                 }
 399                                         }
 400                                 } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
 401                                         for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
 402                                                 u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
 403                                                 if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
 404                                                         ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 405                                                                 (ctx->bios + data_offset +
 406                                                                  le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
 407                                                         ATOM_I2C_RECORD *i2c_record;
 408                                                         ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 409                                                         ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
 410                                                         ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
 411                                                         ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
 412                                                                 (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
 413                                                                 (ctx->bios + data_offset +
 414                                                                  le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
 415                                                         u8 *num_dst_objs = (u8 *)
 416                                                                 ((u8 *)router_src_dst_table + 1 +
 417                                                                  (router_src_dst_table->ucNumberOfSrc * 2));
 418                                                         u16 *dst_objs = (u16 *)(num_dst_objs + 1);
 419                                                         int enum_id;
 420
 421                                                         router.router_id = router_obj_id;
 422                                                         for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
 423                                                                 if (le16_to_cpu(path->usConnObjectId) ==
 424                                                                     le16_to_cpu(dst_objs[enum_id]))
 425                                                                         break;
 426                                                         }
 427
 428                                                         while (record->ucRecordSize > 0 &&
 429                                                                record->ucRecordType > 0 &&
 430                                                                record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 431                                                                 switch (record->ucRecordType) {
 432                                                                 case ATOM_I2C_RECORD_TYPE:
 433                                                                         i2c_record =
 434                                                                                 (ATOM_I2C_RECORD *)
 435                                                                                 record;
 436                                                                         i2c_config =
 437                                                                                 (ATOM_I2C_ID_CONFIG_ACCESS *)
 438                                                                                 &i2c_record->sucI2cId;
 439                                                                         router.i2c_info =
 440                                                                                 amdgpu_atombios_lookup_i2c_gpio(adev,
 441                                                                                                        i2c_config->
 442                                                                                                        ucAccess);
 443                                                                         router.i2c_addr = i2c_record->ucI2CAddr >> 1;
 444                                                                         break;
 445                                                                 case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
 446                                                                         ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
 447                                                                                 record;
 448                                                                         router.ddc_valid = true;
 449                                                                         router.ddc_mux_type = ddc_path->ucMuxType;
 450                                                                         router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
 451                                                                         router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
 452                                                                         break;
 453                                                                 case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
 454                                                                         cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
 455                                                                                 record;
 456                                                                         router.cd_valid = true;
 457                                                                         router.cd_mux_type = cd_path->ucMuxType;
 458                                                                         router.cd_mux_control_pin = cd_path->ucMuxControlPin;
 459                                                                         router.cd_mux_state = cd_path->ucMuxState[enum_id];
 460                                                                         break;
 461                                                                 }
 462                                                                 record = (ATOM_COMMON_RECORD_HEADER *)
 463                                                                         ((char *)record + record->ucRecordSize);
 464                                                         }
 465                                                 }
 466                                         }
 467                                 }
 468                         }
 469
 470                         /* look up gpio for ddc, hpd */
 471                         ddc_bus.valid = false;
 472                         hpd.hpd = AMDGPU_HPD_NONE;
 473                         if ((le16_to_cpu(path->usDeviceTag) &
 474                              (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
 475                                 for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
 476                                         if (le16_to_cpu(path->usConnObjectId) ==
 477                                             le16_to_cpu(con_obj->asObjects[j].
 478                                                         usObjectID)) {
 479                                                 ATOM_COMMON_RECORD_HEADER
 480                                                     *record =
 481                                                     (ATOM_COMMON_RECORD_HEADER
 482                                                      *)
 483                                                     (ctx->bios + data_offset +
 484                                                      le16_to_cpu(con_obj->
 485                                                                  asObjects[j].
 486                                                                  usRecordOffset));
 487                                                 ATOM_I2C_RECORD *i2c_record;
 488                                                 ATOM_HPD_INT_RECORD *hpd_record;
 489                                                 ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 490
 491                                                 while (record->ucRecordSize > 0 &&
 492                                                        record->ucRecordType > 0 &&
 493                                                        record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 494                                                         switch (record->ucRecordType) {
 495                                                         case ATOM_I2C_RECORD_TYPE:
 496                                                                 i2c_record =
 497                                                                     (ATOM_I2C_RECORD *)
 498                                                                         record;
 499                                                                 i2c_config =
 500                                                                         (ATOM_I2C_ID_CONFIG_ACCESS *)
 501                                                                         &i2c_record->sucI2cId;
 502                                                                 ddc_bus = amdgpu_atombios_lookup_i2c_gpio(adev,
 503                                                                                                  i2c_config->
 504                                                                                                  ucAccess);
 505                                                                 break;
 506                                                         case ATOM_HPD_INT_RECORD_TYPE:
 507                                                                 hpd_record =
 508                                                                         (ATOM_HPD_INT_RECORD *)
 509                                                                         record;
 510                                                                 gpio = amdgpu_atombios_lookup_gpio(adev,
 511                                                                                           hpd_record->ucHPDIntGPIOID);
 512                                                                 hpd = amdgpu_atombios_get_hpd_info_from_gpio(adev, &gpio);
 513                                                                 hpd.plugged_state = hpd_record->ucPlugged_PinState;
 514                                                                 break;
 515                                                         }
 516                                                         record =
 517                                                             (ATOM_COMMON_RECORD_HEADER
 518                                                              *) ((char *)record
 519                                                                  +
 520                                                                  record->
 521                                                                  ucRecordSize);
 522                                                 }
 523                                                 break;
 524                                         }
 525                                 }
 526                         }
 527
 528                         /* needed for aux chan transactions */
 529                         ddc_bus.hpd = hpd.hpd;
 530
 531                         conn_id = le16_to_cpu(path->usConnObjectId);
 532
 533                         amdgpu_display_add_connector(adev,
 534                                                       conn_id,
 535                                                       le16_to_cpu(path->usDeviceTag),
 536                                                       connector_type, &ddc_bus,
 537                                                       connector_object_id,
 538                                                       &hpd,
 539                                                       &router);
 540
 541                 }
 542         }
 543
 544         amdgpu_link_encoder_connector(adev_to_drm(adev));
 545
 546         return true;
 547 }
 548
 549 union firmware_info {
 550         ATOM_FIRMWARE_INFO info;
 551         ATOM_FIRMWARE_INFO_V1_2 info_12;
 552         ATOM_FIRMWARE_INFO_V1_3 info_13;
 553         ATOM_FIRMWARE_INFO_V1_4 info_14;
 554         ATOM_FIRMWARE_INFO_V2_1 info_21;
 555         ATOM_FIRMWARE_INFO_V2_2 info_22;
 556 };
 557
 558 int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
 559 {
 560         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 561         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
 562         uint8_t frev, crev;
 563         uint16_t data_offset;
 564         int ret = -EINVAL;
 565
 566         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 567                                    &frev, &crev, &data_offset)) {
 568                 int i;
 569                 struct amdgpu_pll *ppll = &adev->clock.ppll[0];
 570                 struct amdgpu_pll *spll = &adev->clock.spll;
 571                 struct amdgpu_pll *mpll = &adev->clock.mpll;
 572                 union firmware_info *firmware_info =
 573                         (union firmware_info *)(mode_info->atom_context->bios +
 574                                                 data_offset);
 575                 /* pixel clocks */
 576                 ppll->reference_freq =
 577                     le16_to_cpu(firmware_info->info.usReferenceClock);
 578                 ppll->reference_div = 0;
 579
 580                 ppll->pll_out_min =
 581                         le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
 582                 ppll->pll_out_max =
 583                     le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 584
 585                 ppll->lcd_pll_out_min =
 586                         le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 587                 if (ppll->lcd_pll_out_min == 0)
 588                         ppll->lcd_pll_out_min = ppll->pll_out_min;
 589                 ppll->lcd_pll_out_max =
 590                         le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
 591                 if (ppll->lcd_pll_out_max == 0)
 592                         ppll->lcd_pll_out_max = ppll->pll_out_max;
 593
 594                 if (ppll->pll_out_min == 0)
 595                         ppll->pll_out_min = 64800;
 596
 597                 ppll->pll_in_min =
 598                     le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
 599                 ppll->pll_in_max =
 600                     le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);
 601
 602                 ppll->min_post_div = 2;
 603                 ppll->max_post_div = 0x7f;
 604                 ppll->min_frac_feedback_div = 0;
 605                 ppll->max_frac_feedback_div = 9;
 606                 ppll->min_ref_div = 2;
 607                 ppll->max_ref_div = 0x3ff;
 608                 ppll->min_feedback_div = 4;
 609                 ppll->max_feedback_div = 0xfff;
 610                 ppll->best_vco = 0;
 611
 612                 for (i = 1; i < AMDGPU_MAX_PPLL; i++)
 613                         adev->clock.ppll[i] = *ppll;
 614
 615                 /* system clock */
 616                 spll->reference_freq =
 617                         le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
 618                 spll->reference_div = 0;
 619
 620                 spll->pll_out_min =
 621                     le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
 622                 spll->pll_out_max =
 623                     le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);
 624
 625                 /* ??? */
 626                 if (spll->pll_out_min == 0)
 627                         spll->pll_out_min = 64800;
 628
 629                 spll->pll_in_min =
 630                     le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
 631                 spll->pll_in_max =
 632                     le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
 633
 634                 spll->min_post_div = 1;
 635                 spll->max_post_div = 1;
 636                 spll->min_ref_div = 2;
 637                 spll->max_ref_div = 0xff;
 638                 spll->min_feedback_div = 4;
 639                 spll->max_feedback_div = 0xff;
 640                 spll->best_vco = 0;
 641
 642                 /* memory clock */
 643                 mpll->reference_freq =
 644                         le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
 645                 mpll->reference_div = 0;
 646
 647                 mpll->pll_out_min =
 648                     le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
 649                 mpll->pll_out_max =
 650                     le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);
 651
 652                 /* ??? */
 653                 if (mpll->pll_out_min == 0)
 654                         mpll->pll_out_min = 64800;
 655
 656                 mpll->pll_in_min =
 657                     le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
 658                 mpll->pll_in_max =
 659                     le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);
 660
 661                 adev->clock.default_sclk =
 662                     le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
 663                 adev->clock.default_mclk =
 664                     le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);
 665
 666                 mpll->min_post_div = 1;
 667                 mpll->max_post_div = 1;
 668                 mpll->min_ref_div = 2;
 669                 mpll->max_ref_div = 0xff;
 670                 mpll->min_feedback_div = 4;
 671                 mpll->max_feedback_div = 0xff;
 672                 mpll->best_vco = 0;
 673
 674                 /* disp clock */
 675                 adev->clock.default_dispclk =
 676                         le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
 677                 /* set a reasonable default for DP */
 678                 if (adev->clock.default_dispclk < 53900) {
 679                         DRM_DEBUG("Changing default dispclk from %dMhz to 600Mhz\n",
 680                                   adev->clock.default_dispclk / 100);
 681                         adev->clock.default_dispclk = 60000;
 682                 } else if (adev->clock.default_dispclk <= 60000) {
 683                         DRM_DEBUG("Changing default dispclk from %dMhz to 625Mhz\n",
 684                                   adev->clock.default_dispclk / 100);
 685                         adev->clock.default_dispclk = 62500;
 686                 }
 687                 adev->clock.dp_extclk =
 688                         le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
 689                 adev->clock.current_dispclk = adev->clock.default_dispclk;
 690
 691                 adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
 692                 if (adev->clock.max_pixel_clock == 0)
 693                         adev->clock.max_pixel_clock = 40000;
 694
 695                 /* not technically a clock, but... */
 696                 adev->mode_info.firmware_flags =
 697                         le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
 698
 699                 ret = 0;
 700         }
 701
 702         adev->pm.current_sclk = adev->clock.default_sclk;
 703         adev->pm.current_mclk = adev->clock.default_mclk;
 704
 705         return ret;
 706 }
 707
 708 union gfx_info {
 709         ATOM_GFX_INFO_V2_1 info;
 710 };
 711
 712 int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
 713 {
 714         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 715         int index = GetIndexIntoMasterTable(DATA, GFX_Info);
 716         uint8_t frev, crev;
 717         uint16_t data_offset;
 718         int ret = -EINVAL;
 719
 720         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 721                                    &frev, &crev, &data_offset)) {
 722                 union gfx_info *gfx_info = (union gfx_info *)
 723                         (mode_info->atom_context->bios + data_offset);
 724
 725                 adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
 726                 adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
 727                 adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
 728                 adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
 729                 adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
 730                 adev->gfx.config.max_texture_channel_caches =
 731                         gfx_info->info.max_texture_channel_caches;
 732
 733                 ret = 0;
 734         }
 735         return ret;
 736 }
 737
 738 union igp_info {
 739         struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 740         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
 741         struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
 742         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
 743         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
 744         struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
 745 };
 746
 747 /*
 748  * Return vram width from integrated system info table, if available,
 749  * or 0 if not.
 750  */
 751 int amdgpu_atombios_get_vram_width(struct amdgpu_device *adev)
 752 {
 753         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 754         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 755         u16 data_offset, size;
 756         union igp_info *igp_info;
 757         u8 frev, crev;
 758
 759         /* get any igp specific overrides */
 760         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 761                                    &frev, &crev, &data_offset)) {
 762                 igp_info = (union igp_info *)
 763                         (mode_info->atom_context->bios + data_offset);
 764                 switch (crev) {
 765                 case 8:
 766                 case 9:
 767                         return igp_info->info_8.ucUMAChannelNumber * 64;
 768                 default:
 769                         return 0;
 770                 }
 771         }
 772
 773         return 0;
 774 }
 775
 776 static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
 777                                                  struct amdgpu_atom_ss *ss,
 778                                                  int id)
 779 {
 780         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 781         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 782         u16 data_offset, size;
 783         union igp_info *igp_info;
 784         u8 frev, crev;
 785         u16 percentage = 0, rate = 0;
 786
 787         /* get any igp specific overrides */
 788         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 789                                    &frev, &crev, &data_offset)) {
 790                 igp_info = (union igp_info *)
 791                         (mode_info->atom_context->bios + data_offset);
 792                 switch (crev) {
 793                 case 6:
 794                         switch (id) {
 795                         case ASIC_INTERNAL_SS_ON_TMDS:
 796                                 percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
 797                                 rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
 798                                 break;
 799                         case ASIC_INTERNAL_SS_ON_HDMI:
 800                                 percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
 801                                 rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
 802                                 break;
 803                         case ASIC_INTERNAL_SS_ON_LVDS:
 804                                 percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
 805                                 rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
 806                                 break;
 807                         }
 808                         break;
 809                 case 7:
 810                         switch (id) {
 811                         case ASIC_INTERNAL_SS_ON_TMDS:
 812                                 percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
 813                                 rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
 814                                 break;
 815                         case ASIC_INTERNAL_SS_ON_HDMI:
 816                                 percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
 817                                 rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
 818                                 break;
 819                         case ASIC_INTERNAL_SS_ON_LVDS:
 820                                 percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
 821                                 rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
 822                                 break;
 823                         }
 824                         break;
 825                 case 8:
 826                         switch (id) {
 827                         case ASIC_INTERNAL_SS_ON_TMDS:
 828                                 percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
 829                                 rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
 830                                 break;
 831                         case ASIC_INTERNAL_SS_ON_HDMI:
 832                                 percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
 833                                 rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
 834                                 break;
 835                         case ASIC_INTERNAL_SS_ON_LVDS:
 836                                 percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
 837                                 rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
 838                                 break;
 839                         }
 840                         break;
 841                 case 9:
 842                         switch (id) {
 843                         case ASIC_INTERNAL_SS_ON_TMDS:
 844                                 percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
 845                                 rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
 846                                 break;
 847                         case ASIC_INTERNAL_SS_ON_HDMI:
 848                                 percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
 849                                 rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
 850                                 break;
 851                         case ASIC_INTERNAL_SS_ON_LVDS:
 852                                 percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
 853                                 rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
 854                                 break;
 855                         }
 856                         break;
 857                 default:
 858                         DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
 859                         break;
 860                 }
 861                 if (percentage)
 862                         ss->percentage = percentage;
 863                 if (rate)
 864                         ss->rate = rate;
 865         }
 866 }
 867
 868 union asic_ss_info {
 869         struct _ATOM_ASIC_INTERNAL_SS_INFO info;
 870         struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
 871         struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
 872 };
 873
 874 union asic_ss_assignment {
 875         struct _ATOM_ASIC_SS_ASSIGNMENT v1;
 876         struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
 877         struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
 878 };
 879
 880 bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
 881                                       struct amdgpu_atom_ss *ss,
 882                                       int id, u32 clock)
 883 {
 884         struct amdgpu_mode_info *mode_info = &adev->mode_info;
 885         int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
 886         uint16_t data_offset, size;
 887         union asic_ss_info *ss_info;
 888         union asic_ss_assignment *ss_assign;
 889         uint8_t frev, crev;
 890         int i, num_indices;
 891
 892         if (id == ASIC_INTERNAL_MEMORY_SS) {
 893                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
 894                         return false;
 895         }
 896         if (id == ASIC_INTERNAL_ENGINE_SS) {
 897                 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
 898                         return false;
 899         }
 900
 901         memset(ss, 0, sizeof(struct amdgpu_atom_ss));
 902         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 903                                    &frev, &crev, &data_offset)) {
 904
 905                 ss_info =
 906                         (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
 907
 908                 switch (frev) {
 909                 case 1:
 910                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 911                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT);
 912
 913                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
 914                         for (i = 0; i < num_indices; i++) {
 915                                 if ((ss_assign->v1.ucClockIndication == id) &&
 916                                     (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
 917                                         ss->percentage =
 918                                                 le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
 919                                         ss->type = ss_assign->v1.ucSpreadSpectrumMode;
 920                                         ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
 921                                         ss->percentage_divider = 100;
 922                                         return true;
 923                                 }
 924                                 ss_assign = (union asic_ss_assignment *)
 925                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
 926                         }
 927                         break;
 928                 case 2:
 929                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 930                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
 931                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
 932                         for (i = 0; i < num_indices; i++) {
 933                                 if ((ss_assign->v2.ucClockIndication == id) &&
 934                                     (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
 935                                         ss->percentage =
 936                                                 le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
 937                                         ss->type = ss_assign->v2.ucSpreadSpectrumMode;
 938                                         ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
 939                                         ss->percentage_divider = 100;
 940                                         if ((crev == 2) &&
 941                                             ((id == ASIC_INTERNAL_ENGINE_SS) ||
 942                                              (id == ASIC_INTERNAL_MEMORY_SS)))
 943                                                 ss->rate /= 100;
 944                                         return true;
 945                                 }
 946                                 ss_assign = (union asic_ss_assignment *)
 947                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
 948                         }
 949                         break;
 950                 case 3:
 951                         num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 952                                 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
 953                         ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
 954                         for (i = 0; i < num_indices; i++) {
 955                                 if ((ss_assign->v3.ucClockIndication == id) &&
 956                                     (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
 957                                         ss->percentage =
 958                                                 le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
 959                                         ss->type = ss_assign->v3.ucSpreadSpectrumMode;
 960                                         ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
 961                                         if (ss_assign->v3.ucSpreadSpectrumMode &
 962                                             SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
 963                                                 ss->percentage_divider = 1000;
 964                                         else
 965                                                 ss->percentage_divider = 100;
 966                                         if ((id == ASIC_INTERNAL_ENGINE_SS) ||
 967                                             (id == ASIC_INTERNAL_MEMORY_SS))
 968                                                 ss->rate /= 100;
 969                                         if (adev->flags & AMD_IS_APU)
 970                                                 amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
 971                                         return true;
 972                                 }
 973                                 ss_assign = (union asic_ss_assignment *)
 974                                         ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
 975                         }
 976                         break;
 977                 default:
 978                         DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
 979                         break;
 980                 }
 981
 982         }
 983         return false;
 984 }
 985
 986 union get_clock_dividers {
 987         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
 988         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
 989         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
 990         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
 991         struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
 992         struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
 993         struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
 994 };
 995
 996 int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
 997                                        u8 clock_type,
 998                                        u32 clock,
 999                                        bool strobe_mode,
1000                                        struct atom_clock_dividers *dividers)
1001 {
1002         union get_clock_dividers args;
1003         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
1004         u8 frev, crev;
1005
1006         memset(&args, 0, sizeof(args));
1007         memset(dividers, 0, sizeof(struct atom_clock_dividers));
1008
1009         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1010                 return -EINVAL;
1011
1012         switch (crev) {
1013         case 2:
1014         case 3:
1015         case 5:
1016                 /* r6xx, r7xx, evergreen, ni, si.
1017                  * TODO: add support for asic_type <= CHIP_RV770*/
1018                 if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
1019                         args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1020
1021                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1022
1023                         dividers->post_div = args.v3.ucPostDiv;
1024                         dividers->enable_post_div = (args.v3.ucCntlFlag &
1025                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1026                         dividers->enable_dithen = (args.v3.ucCntlFlag &
1027                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1028                         dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
1029                         dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
1030                         dividers->ref_div = args.v3.ucRefDiv;
1031                         dividers->vco_mode = (args.v3.ucCntlFlag &
1032                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1033                 } else {
1034                         /* for SI we use ComputeMemoryClockParam for memory plls */
1035                         if (adev->asic_type >= CHIP_TAHITI)
1036                                 return -EINVAL;
1037                         args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1038                         if (strobe_mode)
1039                                 args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
1040
1041                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1042
1043                         dividers->post_div = args.v5.ucPostDiv;
1044                         dividers->enable_post_div = (args.v5.ucCntlFlag &
1045                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1046                         dividers->enable_dithen = (args.v5.ucCntlFlag &
1047                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1048                         dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
1049                         dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
1050                         dividers->ref_div = args.v5.ucRefDiv;
1051                         dividers->vco_mode = (args.v5.ucCntlFlag &
1052                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1053                 }
1054                 break;
1055         case 4:
1056                 /* fusion */
1057                 args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
1058
1059                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1060
1061                 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1062                 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1063                 break;
1064         case 6:
1065                 /* CI */
1066                 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1067                 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1068                 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
1069
1070                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1071
1072                 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1073                 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1074                 dividers->ref_div = args.v6_out.ucPllRefDiv;
1075                 dividers->post_div = args.v6_out.ucPllPostDiv;
1076                 dividers->flags = args.v6_out.ucPllCntlFlag;
1077                 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1078                 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1079                 break;
1080         default:
1081                 return -EINVAL;
1082         }
1083         return 0;
1084 }
1085
1086 #ifdef CONFIG_DRM_AMDGPU_SI
1087 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1088                                             u32 clock,
1089                                             bool strobe_mode,
1090                                             struct atom_mpll_param *mpll_param)
1091 {
1092         COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1093         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1094         u8 frev, crev;
1095
1096         memset(&args, 0, sizeof(args));
1097         memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1098
1099         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1100                 return -EINVAL;
1101
1102         switch (frev) {
1103         case 2:
1104                 switch (crev) {
1105                 case 1:
1106                         /* SI */
1107                         args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1108                         args.ucInputFlag = 0;
1109                         if (strobe_mode)
1110                                 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1111
1112                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1113
1114                         mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1115                         mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1116                         mpll_param->post_div = args.ucPostDiv;
1117                         mpll_param->dll_speed = args.ucDllSpeed;
1118                         mpll_param->bwcntl = args.ucBWCntl;
1119                         mpll_param->vco_mode =
1120                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1121                         mpll_param->yclk_sel =
1122                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1123                         mpll_param->qdr =
1124                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1125                         mpll_param->half_rate =
1126                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1127                         break;
1128                 default:
1129                         return -EINVAL;
1130                 }
1131                 break;
1132         default:
1133                 return -EINVAL;
1134         }
1135         return 0;
1136 }
1137
1138 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1139                                              u32 eng_clock, u32 mem_clock)
1140 {
1141         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1142         int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1143         u32 tmp;
1144
1145         memset(&args, 0, sizeof(args));
1146
1147         tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1148         tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1149
1150         args.ulTargetEngineClock = cpu_to_le32(tmp);
1151         if (mem_clock)
1152                 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1153
1154         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1155 }
1156
1157 void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
1158                                           u16 *vddc, u16 *vddci, u16 *mvdd)
1159 {
1160         struct amdgpu_mode_info *mode_info = &adev->mode_info;
1161         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
1162         u8 frev, crev;
1163         u16 data_offset;
1164         union firmware_info *firmware_info;
1165
1166         *vddc = 0;
1167         *vddci = 0;
1168         *mvdd = 0;
1169
1170         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
1171                                    &frev, &crev, &data_offset)) {
1172                 firmware_info =
1173                         (union firmware_info *)(mode_info->atom_context->bios +
1174                                                 data_offset);
1175                 *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
1176                 if ((frev == 2) && (crev >= 2)) {
1177                         *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
1178                         *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
1179                 }
1180         }
1181 }
1182
1183 union set_voltage {
1184         struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1185         struct _SET_VOLTAGE_PARAMETERS v1;
1186         struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1187         struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1188 };
1189
1190 int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
1191                              u16 voltage_id, u16 *voltage)
1192 {
1193         union set_voltage args;
1194         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1195         u8 frev, crev;
1196
1197         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1198                 return -EINVAL;
1199
1200         switch (crev) {
1201         case 1:
1202                 return -EINVAL;
1203         case 2:
1204                 args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
1205                 args.v2.ucVoltageMode = 0;
1206                 args.v2.usVoltageLevel = 0;
1207
1208                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1209
1210                 *voltage = le16_to_cpu(args.v2.usVoltageLevel);
1211                 break;
1212         case 3:
1213                 args.v3.ucVoltageType = voltage_type;
1214                 args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
1215                 args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
1216
1217                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1218
1219                 *voltage = le16_to_cpu(args.v3.usVoltageLevel);
1220                 break;
1221         default:
1222                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1223                 return -EINVAL;
1224         }
1225
1226         return 0;
1227 }
1228
1229 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
1230                                                       u16 *voltage,
1231                                                       u16 leakage_idx)
1232 {
1233         return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
1234 }
1235
1236 union voltage_object_info {
1237         struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1238         struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1239         struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1240 };
1241
1242 union voltage_object {
1243         struct _ATOM_VOLTAGE_OBJECT v1;
1244         struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1245         union _ATOM_VOLTAGE_OBJECT_V3 v3;
1246 };
1247
1248
1249 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1250                                                                         u8 voltage_type, u8 voltage_mode)
1251 {
1252         u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1253         u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1254         u8 *start = (u8 *)v3;
1255
1256         while (offset < size) {
1257                 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1258                 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1259                     (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1260                         return vo;
1261                 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1262         }
1263         return NULL;
1264 }
1265
1266 int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
1267                               u8 voltage_type,
1268                               u8 *svd_gpio_id, u8 *svc_gpio_id)
1269 {
1270         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1271         u8 frev, crev;
1272         u16 data_offset, size;
1273         union voltage_object_info *voltage_info;
1274         union voltage_object *voltage_object = NULL;
1275
1276         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1277                                    &frev, &crev, &data_offset)) {
1278                 voltage_info = (union voltage_object_info *)
1279                         (adev->mode_info.atom_context->bios + data_offset);
1280
1281                 switch (frev) {
1282                 case 3:
1283                         switch (crev) {
1284                         case 1:
1285                                 voltage_object = (union voltage_object *)
1286                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1287                                                                       voltage_type,
1288                                                                       VOLTAGE_OBJ_SVID2);
1289                                 if (voltage_object) {
1290                                         *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
1291                                         *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
1292                                 } else {
1293                                         return -EINVAL;
1294                                 }
1295                                 break;
1296                         default:
1297                                 DRM_ERROR("unknown voltage object table\n");
1298                                 return -EINVAL;
1299                         }
1300                         break;
1301                 default:
1302                         DRM_ERROR("unknown voltage object table\n");
1303                         return -EINVAL;
1304                 }
1305
1306         }
1307         return 0;
1308 }
1309
1310 bool
1311 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1312                                 u8 voltage_type, u8 voltage_mode)
1313 {
1314         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1315         u8 frev, crev;
1316         u16 data_offset, size;
1317         union voltage_object_info *voltage_info;
1318
1319         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1320                                    &frev, &crev, &data_offset)) {
1321                 voltage_info = (union voltage_object_info *)
1322                         (adev->mode_info.atom_context->bios + data_offset);
1323
1324                 switch (frev) {
1325                 case 3:
1326                         switch (crev) {
1327                         case 1:
1328                                 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1329                                                                   voltage_type, voltage_mode))
1330                                         return true;
1331                                 break;
1332                         default:
1333                                 DRM_ERROR("unknown voltage object table\n");
1334                                 return false;
1335                         }
1336                         break;
1337                 default:
1338                         DRM_ERROR("unknown voltage object table\n");
1339                         return false;
1340                 }
1341
1342         }
1343         return false;
1344 }
1345
1346 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1347                                       u8 voltage_type, u8 voltage_mode,
1348                                       struct atom_voltage_table *voltage_table)
1349 {
1350         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1351         u8 frev, crev;
1352         u16 data_offset, size;
1353         int i;
1354         union voltage_object_info *voltage_info;
1355         union voltage_object *voltage_object = NULL;
1356
1357         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1358                                    &frev, &crev, &data_offset)) {
1359                 voltage_info = (union voltage_object_info *)
1360                         (adev->mode_info.atom_context->bios + data_offset);
1361
1362                 switch (frev) {
1363                 case 3:
1364                         switch (crev) {
1365                         case 1:
1366                                 voltage_object = (union voltage_object *)
1367                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1368                                                                       voltage_type, voltage_mode);
1369                                 if (voltage_object) {
1370                                         ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1371                                                 &voltage_object->v3.asGpioVoltageObj;
1372                                         VOLTAGE_LUT_ENTRY_V2 *lut;
1373                                         if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1374                                                 return -EINVAL;
1375                                         lut = &gpio->asVolGpioLut[0];
1376                                         for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1377                                                 voltage_table->entries[i].value =
1378                                                         le16_to_cpu(lut->usVoltageValue);
1379                                                 voltage_table->entries[i].smio_low =
1380                                                         le32_to_cpu(lut->ulVoltageId);
1381                                                 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1382                                                         ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1383                                         }
1384                                         voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1385                                         voltage_table->count = gpio->ucGpioEntryNum;
1386                                         voltage_table->phase_delay = gpio->ucPhaseDelay;
1387                                         return 0;
1388                                 }
1389                                 break;
1390                         default:
1391                                 DRM_ERROR("unknown voltage object table\n");
1392                                 return -EINVAL;
1393                         }
1394                         break;
1395                 default:
1396                         DRM_ERROR("unknown voltage object table\n");
1397                         return -EINVAL;
1398                 }
1399         }
1400         return -EINVAL;
1401 }
1402
1403 union vram_info {
1404         struct _ATOM_VRAM_INFO_V3 v1_3;
1405         struct _ATOM_VRAM_INFO_V4 v1_4;
1406         struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1407 };
1408
1409 #define MEM_ID_MASK           0xff000000
1410 #define MEM_ID_SHIFT          24
1411 #define CLOCK_RANGE_MASK      0x00ffffff
1412 #define CLOCK_RANGE_SHIFT     0
1413 #define LOW_NIBBLE_MASK       0xf
1414 #define DATA_EQU_PREV         0
1415 #define DATA_FROM_TABLE       4
1416
1417 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1418                                       u8 module_index,
1419                                       struct atom_mc_reg_table *reg_table)
1420 {
1421         int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1422         u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1423         u32 i = 0, j;
1424         u16 data_offset, size;
1425         union vram_info *vram_info;
1426
1427         memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1428
1429         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1430                                    &frev, &crev, &data_offset)) {
1431                 vram_info = (union vram_info *)
1432                         (adev->mode_info.atom_context->bios + data_offset);
1433                 switch (frev) {
1434                 case 1:
1435                         DRM_ERROR("old table version %d, %d\n", frev, crev);
1436                         return -EINVAL;
1437                 case 2:
1438                         switch (crev) {
1439                         case 1:
1440                                 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1441                                         ATOM_INIT_REG_BLOCK *reg_block =
1442                                                 (ATOM_INIT_REG_BLOCK *)
1443                                                 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1444                                         ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1445                                                 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1446                                                 ((u8 *)reg_block + (2 * sizeof(u16)) +
1447                                                  le16_to_cpu(reg_block->usRegIndexTblSize));
1448                                         ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1449                                         num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1450                                                            sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1451                                         if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1452                                                 return -EINVAL;
1453                                         while (i < num_entries) {
1454                                                 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1455                                                         break;
1456                                                 reg_table->mc_reg_address[i].s1 =
1457                                                         (u16)(le16_to_cpu(format->usRegIndex));
1458                                                 reg_table->mc_reg_address[i].pre_reg_data =
1459                                                         (u8)(format->ucPreRegDataLength);
1460                                                 i++;
1461                                                 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1462                                                         ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1463                                         }
1464                                         reg_table->last = i;
1465                                         while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1466                                                (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1467                                                 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1468                                                                 >> MEM_ID_SHIFT);
1469                                                 if (module_index == t_mem_id) {
1470                                                         reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1471                                                                 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1472                                                                       >> CLOCK_RANGE_SHIFT);
1473                                                         for (i = 0, j = 1; i < reg_table->last; i++) {
1474                                                                 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1475                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1476                                                                                 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1477                                                                         j++;
1478                                                                 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1479                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1480                                                                                 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1481                                                                 }
1482                                                         }
1483                                                         num_ranges++;
1484                                                 }
1485                                                 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1486                                                         ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1487                                         }
1488                                         if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1489                                                 return -EINVAL;
1490                                         reg_table->num_entries = num_ranges;
1491                                 } else
1492                                         return -EINVAL;
1493                                 break;
1494                         default:
1495                                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1496                                 return -EINVAL;
1497                         }
1498                         break;
1499                 default:
1500                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1501                         return -EINVAL;
1502                 }
1503                 return 0;
1504         }
1505         return -EINVAL;
1506 }
1507 #endif
1508
1509 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1510 {
1511         int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1512         u8 frev, crev;
1513         u16 data_offset, size;
1514
1515         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1516                                           &frev, &crev, &data_offset))
1517                 return true;
1518
1519         return false;
1520 }
1521
1522 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1523 {
1524         uint32_t bios_6_scratch;
1525
1526         bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1527
1528         if (lock) {
1529                 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1530                 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1531         } else {
1532                 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1533                 bios_6_scratch |= ATOM_S6_ACC_MODE;
1534         }
1535
1536         WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1537 }
1538
1539 static void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1540 {
1541         uint32_t bios_2_scratch, bios_6_scratch;
1542
1543         adev->bios_scratch_reg_offset = mmBIOS_SCRATCH_0;
1544
1545         bios_2_scratch = RREG32(adev->bios_scratch_reg_offset + 2);
1546         bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1547
1548         /* let the bios control the backlight */
1549         bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1550
1551         /* tell the bios not to handle mode switching */
1552         bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1553
1554         /* clear the vbios dpms state */
1555         bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1556
1557         WREG32(adev->bios_scratch_reg_offset + 2, bios_2_scratch);
1558         WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1559 }
1560
1561 void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
1562                                               bool hung)
1563 {
1564         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 3);
1565
1566         if (hung)
1567                 tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1568         else
1569                 tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1570
1571         WREG32(adev->bios_scratch_reg_offset + 3, tmp);
1572 }
1573
1574 void amdgpu_atombios_scratch_regs_set_backlight_level(struct amdgpu_device *adev,
1575                                                       u32 backlight_level)
1576 {
1577         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 2);
1578
1579         tmp &= ~ATOM_S2_CURRENT_BL_LEVEL_MASK;
1580         tmp |= (backlight_level << ATOM_S2_CURRENT_BL_LEVEL_SHIFT) &
1581                 ATOM_S2_CURRENT_BL_LEVEL_MASK;
1582
1583         WREG32(adev->bios_scratch_reg_offset + 2, tmp);
1584 }
1585
1586 bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev)
1587 {
1588         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7);
1589
1590         if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK)
1591                 return false;
1592         else
1593                 return true;
1594 }
1595
1596 /* Atom needs data in little endian format so swap as appropriate when copying
1597  * data to or from atom. Note that atom operates on dw units.
1598  *
1599  * Use to_le=true when sending data to atom and provide at least
1600  * ALIGN(num_bytes,4) bytes in the dst buffer.
1601  *
1602  * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
1603  * byes in the src buffer.
1604  */
1605 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1606 {
1607 #ifdef __BIG_ENDIAN
1608         u32 src_tmp[5], dst_tmp[5];
1609         int i;
1610         u8 align_num_bytes = ALIGN(num_bytes, 4);
1611
1612         if (to_le) {
1613                 memcpy(src_tmp, src, num_bytes);
1614                 for (i = 0; i < align_num_bytes / 4; i++)
1615                         dst_tmp[i] = cpu_to_le32(src_tmp[i]);
1616                 memcpy(dst, dst_tmp, align_num_bytes);
1617         } else {
1618                 memcpy(src_tmp, src, align_num_bytes);
1619                 for (i = 0; i < align_num_bytes / 4; i++)
1620                         dst_tmp[i] = le32_to_cpu(src_tmp[i]);
1621                 memcpy(dst, dst_tmp, num_bytes);
1622         }
1623 #else
1624         memcpy(dst, src, num_bytes);
1625 #endif
1626 }
1627
1628 static int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
1629 {
1630         struct atom_context *ctx = adev->mode_info.atom_context;
1631         int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1632         uint16_t data_offset;
1633         int usage_bytes = 0;
1634         struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1635         u64 start_addr;
1636         u64 size;
1637
1638         if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1639                 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1640
1641                 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1642                           le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1643                           le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1644
1645                 start_addr = firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware;
1646                 size = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb;
1647
1648                 if ((uint32_t)(start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
1649                         (uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
1650                         ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
1651                         /* Firmware request VRAM reservation for SR-IOV */
1652                         adev->mman.fw_vram_usage_start_offset = (start_addr &
1653                                 (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
1654                         adev->mman.fw_vram_usage_size = size << 10;
1655                         /* Use the default scratch size */
1656                         usage_bytes = 0;
1657                 } else {
1658                         usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1659                 }
1660         }
1661         ctx->scratch_size_bytes = 0;
1662         if (usage_bytes == 0)
1663                 usage_bytes = 20 * 1024;
1664         /* allocate some scratch memory */
1665         ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1666         if (!ctx->scratch)
1667                 return -ENOMEM;
1668         ctx->scratch_size_bytes = usage_bytes;
1669         return 0;
1670 }
1671
1672 /* ATOM accessor methods */
1673 /*
1674  * ATOM is an interpreted byte code stored in tables in the vbios.  The
1675  * driver registers callbacks to access registers and the interpreter
1676  * in the driver parses the tables and executes then to program specific
1677  * actions (set display modes, asic init, etc.).  See amdgpu_atombios.c,
1678  * atombios.h, and atom.c
1679  */
1680
1681 /**
1682  * cail_pll_read - read PLL register
1683  *
1684  * @info: atom card_info pointer
1685  * @reg: PLL register offset
1686  *
1687  * Provides a PLL register accessor for the atom interpreter (r4xx+).
1688  * Returns the value of the PLL register.
1689  */
1690 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
1691 {
1692         return 0;
1693 }
1694
1695 /**
1696  * cail_pll_write - write PLL register
1697  *
1698  * @info: atom card_info pointer
1699  * @reg: PLL register offset
1700  * @val: value to write to the pll register
1701  *
1702  * Provides a PLL register accessor for the atom interpreter (r4xx+).
1703  */
1704 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
1705 {
1706
1707 }
1708
1709 /**
1710  * cail_mc_read - read MC (Memory Controller) register
1711  *
1712  * @info: atom card_info pointer
1713  * @reg: MC register offset
1714  *
1715  * Provides an MC register accessor for the atom interpreter (r4xx+).
1716  * Returns the value of the MC register.
1717  */
1718 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
1719 {
1720         return 0;
1721 }
1722
1723 /**
1724  * cail_mc_write - write MC (Memory Controller) register
1725  *
1726  * @info: atom card_info pointer
1727  * @reg: MC register offset
1728  * @val: value to write to the pll register
1729  *
1730  * Provides a MC register accessor for the atom interpreter (r4xx+).
1731  */
1732 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
1733 {
1734
1735 }
1736
1737 /**
1738  * cail_reg_write - write MMIO register
1739  *
1740  * @info: atom card_info pointer
1741  * @reg: MMIO register offset
1742  * @val: value to write to the pll register
1743  *
1744  * Provides a MMIO register accessor for the atom interpreter (r4xx+).
1745  */
1746 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
1747 {
1748         struct amdgpu_device *adev = drm_to_adev(info->dev);
1749
1750         WREG32(reg, val);
1751 }
1752
1753 /**
1754  * cail_reg_read - read MMIO register
1755  *
1756  * @info: atom card_info pointer
1757  * @reg: MMIO register offset
1758  *
1759  * Provides an MMIO register accessor for the atom interpreter (r4xx+).
1760  * Returns the value of the MMIO register.
1761  */
1762 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
1763 {
1764         struct amdgpu_device *adev = drm_to_adev(info->dev);
1765         uint32_t r;
1766
1767         r = RREG32(reg);
1768         return r;
1769 }
1770
1771 static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev,
1772                                                  struct device_attribute *attr,
1773                                                  char *buf)
1774 {
1775         struct drm_device *ddev = dev_get_drvdata(dev);
1776         struct amdgpu_device *adev = drm_to_adev(ddev);
1777         struct atom_context *ctx = adev->mode_info.atom_context;
1778
1779         return sysfs_emit(buf, "%s\n", ctx->vbios_pn);
1780 }
1781
1782 static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version,
1783                    NULL);
1784
1785 static struct attribute *amdgpu_vbios_version_attrs[] = {
1786         &dev_attr_vbios_version.attr,
1787         NULL
1788 };
1789
1790 const struct attribute_group amdgpu_vbios_version_attr_group = {
1791         .attrs = amdgpu_vbios_version_attrs
1792 };
1793
1794 int amdgpu_atombios_sysfs_init(struct amdgpu_device *adev)
1795 {
1796         if (adev->mode_info.atom_context)
1797                 return devm_device_add_group(adev->dev,
1798                                              &amdgpu_vbios_version_attr_group);
1799
1800         return 0;
1801 }
1802
1803 /**
1804  * amdgpu_atombios_fini - free the driver info and callbacks for atombios
1805  *
1806  * @adev: amdgpu_device pointer
1807  *
1808  * Frees the driver info and register access callbacks for the ATOM
1809  * interpreter (r4xx+).
1810  * Called at driver shutdown.
1811  */
1812 void amdgpu_atombios_fini(struct amdgpu_device *adev)
1813 {
1814         if (adev->mode_info.atom_context) {
1815                 kfree(adev->mode_info.atom_context->scratch);
1816                 kfree(adev->mode_info.atom_context->iio);
1817         }
1818         kfree(adev->mode_info.atom_context);
1819         adev->mode_info.atom_context = NULL;
1820         kfree(adev->mode_info.atom_card_info);
1821         adev->mode_info.atom_card_info = NULL;
1822 }
1823
1824 /**
1825  * amdgpu_atombios_init - init the driver info and callbacks for atombios
1826  *
1827  * @adev: amdgpu_device pointer
1828  *
1829  * Initializes the driver info and register access callbacks for the
1830  * ATOM interpreter (r4xx+).
1831  * Returns 0 on sucess, -ENOMEM on failure.
1832  * Called at driver startup.
1833  */
1834 int amdgpu_atombios_init(struct amdgpu_device *adev)
1835 {
1836         struct card_info *atom_card_info =
1837             kzalloc(sizeof(struct card_info), GFP_KERNEL);
1838
1839         if (!atom_card_info)
1840                 return -ENOMEM;
1841
1842         adev->mode_info.atom_card_info = atom_card_info;
1843         atom_card_info->dev = adev_to_drm(adev);
1844         atom_card_info->reg_read = cail_reg_read;
1845         atom_card_info->reg_write = cail_reg_write;
1846         atom_card_info->mc_read = cail_mc_read;
1847         atom_card_info->mc_write = cail_mc_write;
1848         atom_card_info->pll_read = cail_pll_read;
1849         atom_card_info->pll_write = cail_pll_write;
1850
1851         adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
1852         if (!adev->mode_info.atom_context) {
1853                 amdgpu_atombios_fini(adev);
1854                 return -ENOMEM;
1855         }
1856
1857         mutex_init(&adev->mode_info.atom_context->mutex);
1858         if (adev->is_atom_fw) {
1859                 amdgpu_atomfirmware_scratch_regs_init(adev);
1860                 amdgpu_atomfirmware_allocate_fb_scratch(adev);
1861                 /* cached firmware_flags for further usage */
1862                 adev->mode_info.firmware_flags =
1863                         amdgpu_atomfirmware_query_firmware_capability(adev);
1864         } else {
1865                 amdgpu_atombios_scratch_regs_init(adev);
1866                 amdgpu_atombios_allocate_fb_scratch(adev);
1867         }
1868
1869         return 0;
1870 }
1871
1872 int amdgpu_atombios_get_data_table(struct amdgpu_device *adev,
1873                                    uint32_t table,
1874                                    uint16_t *size,
1875                                    uint8_t *frev,
1876                                    uint8_t *crev,
1877                                    uint8_t **addr)
1878 {
1879         uint16_t data_start;
1880
1881         if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, table,
1882                                            size, frev, crev, &data_start))
1883                 return -EINVAL;
1884
1885         *addr = (uint8_t *)adev->mode_info.atom_context->bios + data_start;
1886
1887         return 0;
1888 }