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                                 sizeof(args));
1023
1024                         dividers->post_div = args.v3.ucPostDiv;
1025                         dividers->enable_post_div = (args.v3.ucCntlFlag &
1026                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1027                         dividers->enable_dithen = (args.v3.ucCntlFlag &
1028                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1029                         dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
1030                         dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
1031                         dividers->ref_div = args.v3.ucRefDiv;
1032                         dividers->vco_mode = (args.v3.ucCntlFlag &
1033                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1034                 } else {
1035                         /* for SI we use ComputeMemoryClockParam for memory plls */
1036                         if (adev->asic_type >= CHIP_TAHITI)
1037                                 return -EINVAL;
1038                         args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1039                         if (strobe_mode)
1040                                 args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
1041
1042                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1043                                 sizeof(args));
1044
1045                         dividers->post_div = args.v5.ucPostDiv;
1046                         dividers->enable_post_div = (args.v5.ucCntlFlag &
1047                                                      ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1048                         dividers->enable_dithen = (args.v5.ucCntlFlag &
1049                                                    ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1050                         dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
1051                         dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
1052                         dividers->ref_div = args.v5.ucRefDiv;
1053                         dividers->vco_mode = (args.v5.ucCntlFlag &
1054                                               ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1055                 }
1056                 break;
1057         case 4:
1058                 /* fusion */
1059                 args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
1060
1061                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1062                         sizeof(args));
1063
1064                 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1065                 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1066                 break;
1067         case 6:
1068                 /* CI */
1069                 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1070                 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1071                 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
1072
1073                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1074                         sizeof(args));
1075
1076                 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1077                 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1078                 dividers->ref_div = args.v6_out.ucPllRefDiv;
1079                 dividers->post_div = args.v6_out.ucPllPostDiv;
1080                 dividers->flags = args.v6_out.ucPllCntlFlag;
1081                 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1082                 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1083                 break;
1084         default:
1085                 return -EINVAL;
1086         }
1087         return 0;
1088 }
1089
1090 #ifdef CONFIG_DRM_AMDGPU_SI
1091 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1092                                             u32 clock,
1093                                             bool strobe_mode,
1094                                             struct atom_mpll_param *mpll_param)
1095 {
1096         COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1097         int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1098         u8 frev, crev;
1099
1100         memset(&args, 0, sizeof(args));
1101         memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1102
1103         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1104                 return -EINVAL;
1105
1106         switch (frev) {
1107         case 2:
1108                 switch (crev) {
1109                 case 1:
1110                         /* SI */
1111                         args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1112                         args.ucInputFlag = 0;
1113                         if (strobe_mode)
1114                                 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1115
1116                         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1117                                 sizeof(args));
1118
1119                         mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1120                         mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1121                         mpll_param->post_div = args.ucPostDiv;
1122                         mpll_param->dll_speed = args.ucDllSpeed;
1123                         mpll_param->bwcntl = args.ucBWCntl;
1124                         mpll_param->vco_mode =
1125                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1126                         mpll_param->yclk_sel =
1127                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1128                         mpll_param->qdr =
1129                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1130                         mpll_param->half_rate =
1131                                 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1132                         break;
1133                 default:
1134                         return -EINVAL;
1135                 }
1136                 break;
1137         default:
1138                 return -EINVAL;
1139         }
1140         return 0;
1141 }
1142
1143 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1144                                              u32 eng_clock, u32 mem_clock)
1145 {
1146         SET_ENGINE_CLOCK_PS_ALLOCATION args;
1147         int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1148         u32 tmp;
1149
1150         memset(&args, 0, sizeof(args));
1151
1152         tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1153         tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1154
1155         args.ulTargetEngineClock = cpu_to_le32(tmp);
1156         if (mem_clock)
1157                 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1158
1159         amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1160                 sizeof(args));
1161 }
1162
1163 void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
1164                                           u16 *vddc, u16 *vddci, u16 *mvdd)
1165 {
1166         struct amdgpu_mode_info *mode_info = &adev->mode_info;
1167         int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
1168         u8 frev, crev;
1169         u16 data_offset;
1170         union firmware_info *firmware_info;
1171
1172         *vddc = 0;
1173         *vddci = 0;
1174         *mvdd = 0;
1175
1176         if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
1177                                    &frev, &crev, &data_offset)) {
1178                 firmware_info =
1179                         (union firmware_info *)(mode_info->atom_context->bios +
1180                                                 data_offset);
1181                 *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
1182                 if ((frev == 2) && (crev >= 2)) {
1183                         *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
1184                         *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
1185                 }
1186         }
1187 }
1188
1189 union set_voltage {
1190         struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1191         struct _SET_VOLTAGE_PARAMETERS v1;
1192         struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1193         struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1194 };
1195
1196 int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
1197                              u16 voltage_id, u16 *voltage)
1198 {
1199         union set_voltage args;
1200         int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1201         u8 frev, crev;
1202
1203         if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1204                 return -EINVAL;
1205
1206         switch (crev) {
1207         case 1:
1208                 return -EINVAL;
1209         case 2:
1210                 args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
1211                 args.v2.ucVoltageMode = 0;
1212                 args.v2.usVoltageLevel = 0;
1213
1214                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1215                         sizeof(args));
1216
1217                 *voltage = le16_to_cpu(args.v2.usVoltageLevel);
1218                 break;
1219         case 3:
1220                 args.v3.ucVoltageType = voltage_type;
1221                 args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
1222                 args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
1223
1224                 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args,
1225                         sizeof(args));
1226
1227                 *voltage = le16_to_cpu(args.v3.usVoltageLevel);
1228                 break;
1229         default:
1230                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1231                 return -EINVAL;
1232         }
1233
1234         return 0;
1235 }
1236
1237 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
1238                                                       u16 *voltage,
1239                                                       u16 leakage_idx)
1240 {
1241         return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
1242 }
1243
1244 union voltage_object_info {
1245         struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1246         struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1247         struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1248 };
1249
1250 union voltage_object {
1251         struct _ATOM_VOLTAGE_OBJECT v1;
1252         struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1253         union _ATOM_VOLTAGE_OBJECT_V3 v3;
1254 };
1255
1256
1257 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1258                                                                         u8 voltage_type, u8 voltage_mode)
1259 {
1260         u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1261         u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1262         u8 *start = (u8 *)v3;
1263
1264         while (offset < size) {
1265                 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1266                 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1267                     (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1268                         return vo;
1269                 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1270         }
1271         return NULL;
1272 }
1273
1274 int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
1275                               u8 voltage_type,
1276                               u8 *svd_gpio_id, u8 *svc_gpio_id)
1277 {
1278         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1279         u8 frev, crev;
1280         u16 data_offset, size;
1281         union voltage_object_info *voltage_info;
1282         union voltage_object *voltage_object = NULL;
1283
1284         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1285                                    &frev, &crev, &data_offset)) {
1286                 voltage_info = (union voltage_object_info *)
1287                         (adev->mode_info.atom_context->bios + data_offset);
1288
1289                 switch (frev) {
1290                 case 3:
1291                         switch (crev) {
1292                         case 1:
1293                                 voltage_object = (union voltage_object *)
1294                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1295                                                                       voltage_type,
1296                                                                       VOLTAGE_OBJ_SVID2);
1297                                 if (voltage_object) {
1298                                         *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
1299                                         *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
1300                                 } else {
1301                                         return -EINVAL;
1302                                 }
1303                                 break;
1304                         default:
1305                                 DRM_ERROR("unknown voltage object table\n");
1306                                 return -EINVAL;
1307                         }
1308                         break;
1309                 default:
1310                         DRM_ERROR("unknown voltage object table\n");
1311                         return -EINVAL;
1312                 }
1313
1314         }
1315         return 0;
1316 }
1317
1318 bool
1319 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1320                                 u8 voltage_type, u8 voltage_mode)
1321 {
1322         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1323         u8 frev, crev;
1324         u16 data_offset, size;
1325         union voltage_object_info *voltage_info;
1326
1327         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1328                                    &frev, &crev, &data_offset)) {
1329                 voltage_info = (union voltage_object_info *)
1330                         (adev->mode_info.atom_context->bios + data_offset);
1331
1332                 switch (frev) {
1333                 case 3:
1334                         switch (crev) {
1335                         case 1:
1336                                 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1337                                                                   voltage_type, voltage_mode))
1338                                         return true;
1339                                 break;
1340                         default:
1341                                 DRM_ERROR("unknown voltage object table\n");
1342                                 return false;
1343                         }
1344                         break;
1345                 default:
1346                         DRM_ERROR("unknown voltage object table\n");
1347                         return false;
1348                 }
1349
1350         }
1351         return false;
1352 }
1353
1354 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1355                                       u8 voltage_type, u8 voltage_mode,
1356                                       struct atom_voltage_table *voltage_table)
1357 {
1358         int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1359         u8 frev, crev;
1360         u16 data_offset, size;
1361         int i;
1362         union voltage_object_info *voltage_info;
1363         union voltage_object *voltage_object = NULL;
1364
1365         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1366                                    &frev, &crev, &data_offset)) {
1367                 voltage_info = (union voltage_object_info *)
1368                         (adev->mode_info.atom_context->bios + data_offset);
1369
1370                 switch (frev) {
1371                 case 3:
1372                         switch (crev) {
1373                         case 1:
1374                                 voltage_object = (union voltage_object *)
1375                                         amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1376                                                                       voltage_type, voltage_mode);
1377                                 if (voltage_object) {
1378                                         ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1379                                                 &voltage_object->v3.asGpioVoltageObj;
1380                                         VOLTAGE_LUT_ENTRY_V2 *lut;
1381                                         if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1382                                                 return -EINVAL;
1383                                         lut = &gpio->asVolGpioLut[0];
1384                                         for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1385                                                 voltage_table->entries[i].value =
1386                                                         le16_to_cpu(lut->usVoltageValue);
1387                                                 voltage_table->entries[i].smio_low =
1388                                                         le32_to_cpu(lut->ulVoltageId);
1389                                                 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1390                                                         ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1391                                         }
1392                                         voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1393                                         voltage_table->count = gpio->ucGpioEntryNum;
1394                                         voltage_table->phase_delay = gpio->ucPhaseDelay;
1395                                         return 0;
1396                                 }
1397                                 break;
1398                         default:
1399                                 DRM_ERROR("unknown voltage object table\n");
1400                                 return -EINVAL;
1401                         }
1402                         break;
1403                 default:
1404                         DRM_ERROR("unknown voltage object table\n");
1405                         return -EINVAL;
1406                 }
1407         }
1408         return -EINVAL;
1409 }
1410
1411 union vram_info {
1412         struct _ATOM_VRAM_INFO_V3 v1_3;
1413         struct _ATOM_VRAM_INFO_V4 v1_4;
1414         struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1415 };
1416
1417 #define MEM_ID_MASK           0xff000000
1418 #define MEM_ID_SHIFT          24
1419 #define CLOCK_RANGE_MASK      0x00ffffff
1420 #define CLOCK_RANGE_SHIFT     0
1421 #define LOW_NIBBLE_MASK       0xf
1422 #define DATA_EQU_PREV         0
1423 #define DATA_FROM_TABLE       4
1424
1425 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1426                                       u8 module_index,
1427                                       struct atom_mc_reg_table *reg_table)
1428 {
1429         int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1430         u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1431         u32 i = 0, j;
1432         u16 data_offset, size;
1433         union vram_info *vram_info;
1434
1435         memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1436
1437         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1438                                    &frev, &crev, &data_offset)) {
1439                 vram_info = (union vram_info *)
1440                         (adev->mode_info.atom_context->bios + data_offset);
1441                 switch (frev) {
1442                 case 1:
1443                         DRM_ERROR("old table version %d, %d\n", frev, crev);
1444                         return -EINVAL;
1445                 case 2:
1446                         switch (crev) {
1447                         case 1:
1448                                 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1449                                         ATOM_INIT_REG_BLOCK *reg_block =
1450                                                 (ATOM_INIT_REG_BLOCK *)
1451                                                 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1452                                         ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1453                                                 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1454                                                 ((u8 *)reg_block + (2 * sizeof(u16)) +
1455                                                  le16_to_cpu(reg_block->usRegIndexTblSize));
1456                                         ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1457                                         num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1458                                                            sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1459                                         if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1460                                                 return -EINVAL;
1461                                         while (i < num_entries) {
1462                                                 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1463                                                         break;
1464                                                 reg_table->mc_reg_address[i].s1 =
1465                                                         (u16)(le16_to_cpu(format->usRegIndex));
1466                                                 reg_table->mc_reg_address[i].pre_reg_data =
1467                                                         (u8)(format->ucPreRegDataLength);
1468                                                 i++;
1469                                                 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1470                                                         ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1471                                         }
1472                                         reg_table->last = i;
1473                                         while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1474                                                (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1475                                                 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1476                                                                 >> MEM_ID_SHIFT);
1477                                                 if (module_index == t_mem_id) {
1478                                                         reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1479                                                                 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1480                                                                       >> CLOCK_RANGE_SHIFT);
1481                                                         for (i = 0, j = 1; i < reg_table->last; i++) {
1482                                                                 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1483                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1484                                                                                 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1485                                                                         j++;
1486                                                                 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1487                                                                         if (i == 0)
1488                                                                                 continue;
1489                                                                         reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1490                                                                                 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1491                                                                 }
1492                                                         }
1493                                                         num_ranges++;
1494                                                 }
1495                                                 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1496                                                         ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1497                                         }
1498                                         if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1499                                                 return -EINVAL;
1500                                         reg_table->num_entries = num_ranges;
1501                                 } else
1502                                         return -EINVAL;
1503                                 break;
1504                         default:
1505                                 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1506                                 return -EINVAL;
1507                         }
1508                         break;
1509                 default:
1510                         DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1511                         return -EINVAL;
1512                 }
1513                 return 0;
1514         }
1515         return -EINVAL;
1516 }
1517 #endif
1518
1519 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1520 {
1521         int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1522         u8 frev, crev;
1523         u16 data_offset, size;
1524
1525         if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1526                                           &frev, &crev, &data_offset))
1527                 return true;
1528
1529         return false;
1530 }
1531
1532 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1533 {
1534         uint32_t bios_6_scratch;
1535
1536         bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1537
1538         if (lock) {
1539                 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1540                 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1541         } else {
1542                 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1543                 bios_6_scratch |= ATOM_S6_ACC_MODE;
1544         }
1545
1546         WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1547 }
1548
1549 static void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1550 {
1551         uint32_t bios_2_scratch, bios_6_scratch;
1552
1553         adev->bios_scratch_reg_offset = mmBIOS_SCRATCH_0;
1554
1555         bios_2_scratch = RREG32(adev->bios_scratch_reg_offset + 2);
1556         bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1557
1558         /* let the bios control the backlight */
1559         bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1560
1561         /* tell the bios not to handle mode switching */
1562         bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1563
1564         /* clear the vbios dpms state */
1565         bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1566
1567         WREG32(adev->bios_scratch_reg_offset + 2, bios_2_scratch);
1568         WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1569 }
1570
1571 void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
1572                                               bool hung)
1573 {
1574         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 3);
1575
1576         if (hung)
1577                 tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1578         else
1579                 tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1580
1581         WREG32(adev->bios_scratch_reg_offset + 3, tmp);
1582 }
1583
1584 void amdgpu_atombios_scratch_regs_set_backlight_level(struct amdgpu_device *adev,
1585                                                       u32 backlight_level)
1586 {
1587         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 2);
1588
1589         tmp &= ~ATOM_S2_CURRENT_BL_LEVEL_MASK;
1590         tmp |= (backlight_level << ATOM_S2_CURRENT_BL_LEVEL_SHIFT) &
1591                 ATOM_S2_CURRENT_BL_LEVEL_MASK;
1592
1593         WREG32(adev->bios_scratch_reg_offset + 2, tmp);
1594 }
1595
1596 bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev)
1597 {
1598         u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7);
1599
1600         if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK)
1601                 return false;
1602         else
1603                 return true;
1604 }
1605
1606 /* Atom needs data in little endian format so swap as appropriate when copying
1607  * data to or from atom. Note that atom operates on dw units.
1608  *
1609  * Use to_le=true when sending data to atom and provide at least
1610  * ALIGN(num_bytes,4) bytes in the dst buffer.
1611  *
1612  * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
1613  * byes in the src buffer.
1614  */
1615 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1616 {
1617 #ifdef __BIG_ENDIAN
1618         u32 src_tmp[5], dst_tmp[5];
1619         int i;
1620         u8 align_num_bytes = ALIGN(num_bytes, 4);
1621
1622         if (to_le) {
1623                 memcpy(src_tmp, src, num_bytes);
1624                 for (i = 0; i < align_num_bytes / 4; i++)
1625                         dst_tmp[i] = cpu_to_le32(src_tmp[i]);
1626                 memcpy(dst, dst_tmp, align_num_bytes);
1627         } else {
1628                 memcpy(src_tmp, src, align_num_bytes);
1629                 for (i = 0; i < align_num_bytes / 4; i++)
1630                         dst_tmp[i] = le32_to_cpu(src_tmp[i]);
1631                 memcpy(dst, dst_tmp, num_bytes);
1632         }
1633 #else
1634         memcpy(dst, src, num_bytes);
1635 #endif
1636 }
1637
1638 static int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
1639 {
1640         struct atom_context *ctx = adev->mode_info.atom_context;
1641         int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1642         uint16_t data_offset;
1643         int usage_bytes = 0;
1644         struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1645         u64 start_addr;
1646         u64 size;
1647
1648         if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1649                 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1650
1651                 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1652                           le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1653                           le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1654
1655                 start_addr = firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware;
1656                 size = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb;
1657
1658                 if ((uint32_t)(start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
1659                         (uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
1660                         ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
1661                         /* Firmware request VRAM reservation for SR-IOV */
1662                         adev->mman.fw_vram_usage_start_offset = (start_addr &
1663                                 (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
1664                         adev->mman.fw_vram_usage_size = size << 10;
1665                         /* Use the default scratch size */
1666                         usage_bytes = 0;
1667                 } else {
1668                         usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1669                 }
1670         }
1671         ctx->scratch_size_bytes = 0;
1672         if (usage_bytes == 0)
1673                 usage_bytes = 20 * 1024;
1674         /* allocate some scratch memory */
1675         ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1676         if (!ctx->scratch)
1677                 return -ENOMEM;
1678         ctx->scratch_size_bytes = usage_bytes;
1679         return 0;
1680 }
1681
1682 /* ATOM accessor methods */
1683 /*
1684  * ATOM is an interpreted byte code stored in tables in the vbios.  The
1685  * driver registers callbacks to access registers and the interpreter
1686  * in the driver parses the tables and executes then to program specific
1687  * actions (set display modes, asic init, etc.).  See amdgpu_atombios.c,
1688  * atombios.h, and atom.c
1689  */
1690
1691 /**
1692  * cail_pll_read - read PLL register
1693  *
1694  * @info: atom card_info pointer
1695  * @reg: PLL register offset
1696  *
1697  * Provides a PLL register accessor for the atom interpreter (r4xx+).
1698  * Returns the value of the PLL register.
1699  */
1700 static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
1701 {
1702         return 0;
1703 }
1704
1705 /**
1706  * cail_pll_write - write PLL register
1707  *
1708  * @info: atom card_info pointer
1709  * @reg: PLL register offset
1710  * @val: value to write to the pll register
1711  *
1712  * Provides a PLL register accessor for the atom interpreter (r4xx+).
1713  */
1714 static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
1715 {
1716
1717 }
1718
1719 /**
1720  * cail_mc_read - read MC (Memory Controller) register
1721  *
1722  * @info: atom card_info pointer
1723  * @reg: MC register offset
1724  *
1725  * Provides an MC register accessor for the atom interpreter (r4xx+).
1726  * Returns the value of the MC register.
1727  */
1728 static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
1729 {
1730         return 0;
1731 }
1732
1733 /**
1734  * cail_mc_write - write MC (Memory Controller) register
1735  *
1736  * @info: atom card_info pointer
1737  * @reg: MC register offset
1738  * @val: value to write to the pll register
1739  *
1740  * Provides a MC register accessor for the atom interpreter (r4xx+).
1741  */
1742 static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
1743 {
1744
1745 }
1746
1747 /**
1748  * cail_reg_write - write MMIO register
1749  *
1750  * @info: atom card_info pointer
1751  * @reg: MMIO register offset
1752  * @val: value to write to the pll register
1753  *
1754  * Provides a MMIO register accessor for the atom interpreter (r4xx+).
1755  */
1756 static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
1757 {
1758         struct amdgpu_device *adev = drm_to_adev(info->dev);
1759
1760         WREG32(reg, val);
1761 }
1762
1763 /**
1764  * cail_reg_read - read MMIO register
1765  *
1766  * @info: atom card_info pointer
1767  * @reg: MMIO register offset
1768  *
1769  * Provides an MMIO register accessor for the atom interpreter (r4xx+).
1770  * Returns the value of the MMIO register.
1771  */
1772 static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
1773 {
1774         struct amdgpu_device *adev = drm_to_adev(info->dev);
1775         uint32_t r;
1776
1777         r = RREG32(reg);
1778         return r;
1779 }
1780
1781 static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev,
1782                                                  struct device_attribute *attr,
1783                                                  char *buf)
1784 {
1785         struct drm_device *ddev = dev_get_drvdata(dev);
1786         struct amdgpu_device *adev = drm_to_adev(ddev);
1787         struct atom_context *ctx = adev->mode_info.atom_context;
1788
1789         return sysfs_emit(buf, "%s\n", ctx->vbios_pn);
1790 }
1791
1792 static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version,
1793                    NULL);
1794
1795 static struct attribute *amdgpu_vbios_version_attrs[] = {
1796         &dev_attr_vbios_version.attr,
1797         NULL
1798 };
1799
1800 const struct attribute_group amdgpu_vbios_version_attr_group = {
1801         .attrs = amdgpu_vbios_version_attrs
1802 };
1803
1804 int amdgpu_atombios_sysfs_init(struct amdgpu_device *adev)
1805 {
1806         if (adev->mode_info.atom_context)
1807                 return devm_device_add_group(adev->dev,
1808                                              &amdgpu_vbios_version_attr_group);
1809
1810         return 0;
1811 }
1812
1813 /**
1814  * amdgpu_atombios_fini - free the driver info and callbacks for atombios
1815  *
1816  * @adev: amdgpu_device pointer
1817  *
1818  * Frees the driver info and register access callbacks for the ATOM
1819  * interpreter (r4xx+).
1820  * Called at driver shutdown.
1821  */
1822 void amdgpu_atombios_fini(struct amdgpu_device *adev)
1823 {
1824         if (adev->mode_info.atom_context) {
1825                 kfree(adev->mode_info.atom_context->scratch);
1826                 kfree(adev->mode_info.atom_context->iio);
1827         }
1828         kfree(adev->mode_info.atom_context);
1829         adev->mode_info.atom_context = NULL;
1830         kfree(adev->mode_info.atom_card_info);
1831         adev->mode_info.atom_card_info = NULL;
1832 }
1833
1834 /**
1835  * amdgpu_atombios_init - init the driver info and callbacks for atombios
1836  *
1837  * @adev: amdgpu_device pointer
1838  *
1839  * Initializes the driver info and register access callbacks for the
1840  * ATOM interpreter (r4xx+).
1841  * Returns 0 on sucess, -ENOMEM on failure.
1842  * Called at driver startup.
1843  */
1844 int amdgpu_atombios_init(struct amdgpu_device *adev)
1845 {
1846         struct card_info *atom_card_info =
1847             kzalloc(sizeof(struct card_info), GFP_KERNEL);
1848
1849         if (!atom_card_info)
1850                 return -ENOMEM;
1851
1852         adev->mode_info.atom_card_info = atom_card_info;
1853         atom_card_info->dev = adev_to_drm(adev);
1854         atom_card_info->reg_read = cail_reg_read;
1855         atom_card_info->reg_write = cail_reg_write;
1856         atom_card_info->mc_read = cail_mc_read;
1857         atom_card_info->mc_write = cail_mc_write;
1858         atom_card_info->pll_read = cail_pll_read;
1859         atom_card_info->pll_write = cail_pll_write;
1860
1861         adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
1862         if (!adev->mode_info.atom_context) {
1863                 amdgpu_atombios_fini(adev);
1864                 return -ENOMEM;
1865         }
1866
1867         mutex_init(&adev->mode_info.atom_context->mutex);
1868         if (adev->is_atom_fw) {
1869                 amdgpu_atomfirmware_scratch_regs_init(adev);
1870                 amdgpu_atomfirmware_allocate_fb_scratch(adev);
1871                 /* cached firmware_flags for further usage */
1872                 adev->mode_info.firmware_flags =
1873                         amdgpu_atomfirmware_query_firmware_capability(adev);
1874         } else {
1875                 amdgpu_atombios_scratch_regs_init(adev);
1876                 amdgpu_atombios_allocate_fb_scratch(adev);
1877         }
1878
1879         return 0;
1880 }
1881
1882 int amdgpu_atombios_get_data_table(struct amdgpu_device *adev,
1883                                    uint32_t table,
1884                                    uint16_t *size,
1885                                    uint8_t *frev,
1886                                    uint8_t *crev,
1887                                    uint8_t **addr)
1888 {
1889         uint16_t data_start;
1890
1891         if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, table,
1892                                            size, frev, crev, &data_start))
1893                 return -EINVAL;
1894
1895         *addr = (uint8_t *)adev->mode_info.atom_context->bios + data_start;
1896
1897         return 0;
1898 }