linux/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
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   1/*
   2 * Copyright 2007-8 Advanced Micro Devices, Inc.
   3 * Copyright 2008 Red Hat Inc.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 *
  23 * Authors: Dave Airlie
  24 *          Alex Deucher
  25 */
  26#include <drm/drmP.h>
  27#include <drm/amdgpu_drm.h>
  28#include "amdgpu.h"
  29#include "amdgpu_atombios.h"
  30#include "amdgpu_atomfirmware.h"
  31#include "amdgpu_i2c.h"
  32
  33#include "atom.h"
  34#include "atom-bits.h"
  35#include "atombios_encoders.h"
  36#include "bif/bif_4_1_d.h"
  37
  38static void amdgpu_atombios_lookup_i2c_gpio_quirks(struct amdgpu_device *adev,
  39                                          ATOM_GPIO_I2C_ASSIGMENT *gpio,
  40                                          u8 index)
  41{
  42
  43}
  44
  45static struct amdgpu_i2c_bus_rec amdgpu_atombios_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio)
  46{
  47        struct amdgpu_i2c_bus_rec i2c;
  48
  49        memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
  50
  51        i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex);
  52        i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex);
  53        i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex);
  54        i2c.en_data_reg = le16_to_cpu(gpio->usDataEnRegisterIndex);
  55        i2c.y_clk_reg = le16_to_cpu(gpio->usClkY_RegisterIndex);
  56        i2c.y_data_reg = le16_to_cpu(gpio->usDataY_RegisterIndex);
  57        i2c.a_clk_reg = le16_to_cpu(gpio->usClkA_RegisterIndex);
  58        i2c.a_data_reg = le16_to_cpu(gpio->usDataA_RegisterIndex);
  59        i2c.mask_clk_mask = (1 << gpio->ucClkMaskShift);
  60        i2c.mask_data_mask = (1 << gpio->ucDataMaskShift);
  61        i2c.en_clk_mask = (1 << gpio->ucClkEnShift);
  62        i2c.en_data_mask = (1 << gpio->ucDataEnShift);
  63        i2c.y_clk_mask = (1 << gpio->ucClkY_Shift);
  64        i2c.y_data_mask = (1 << gpio->ucDataY_Shift);
  65        i2c.a_clk_mask = (1 << gpio->ucClkA_Shift);
  66        i2c.a_data_mask = (1 << gpio->ucDataA_Shift);
  67
  68        if (gpio->sucI2cId.sbfAccess.bfHW_Capable)
  69                i2c.hw_capable = true;
  70        else
  71                i2c.hw_capable = false;
  72
  73        if (gpio->sucI2cId.ucAccess == 0xa0)
  74                i2c.mm_i2c = true;
  75        else
  76                i2c.mm_i2c = false;
  77
  78        i2c.i2c_id = gpio->sucI2cId.ucAccess;
  79
  80        if (i2c.mask_clk_reg)
  81                i2c.valid = true;
  82        else
  83                i2c.valid = false;
  84
  85        return i2c;
  86}
  87
  88struct amdgpu_i2c_bus_rec amdgpu_atombios_lookup_i2c_gpio(struct amdgpu_device *adev,
  89                                                          uint8_t id)
  90{
  91        struct atom_context *ctx = adev->mode_info.atom_context;
  92        ATOM_GPIO_I2C_ASSIGMENT *gpio;
  93        struct amdgpu_i2c_bus_rec i2c;
  94        int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
  95        struct _ATOM_GPIO_I2C_INFO *i2c_info;
  96        uint16_t data_offset, size;
  97        int i, num_indices;
  98
  99        memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
 100        i2c.valid = false;
 101
 102        if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 103                i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
 104
 105                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 106                        sizeof(ATOM_GPIO_I2C_ASSIGMENT);
 107
 108                gpio = &i2c_info->asGPIO_Info[0];
 109                for (i = 0; i < num_indices; i++) {
 110
 111                        amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
 112
 113                        if (gpio->sucI2cId.ucAccess == id) {
 114                                i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
 115                                break;
 116                        }
 117                        gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
 118                                ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
 119                }
 120        }
 121
 122        return i2c;
 123}
 124
 125void amdgpu_atombios_i2c_init(struct amdgpu_device *adev)
 126{
 127        struct atom_context *ctx = adev->mode_info.atom_context;
 128        ATOM_GPIO_I2C_ASSIGMENT *gpio;
 129        struct amdgpu_i2c_bus_rec i2c;
 130        int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
 131        struct _ATOM_GPIO_I2C_INFO *i2c_info;
 132        uint16_t data_offset, size;
 133        int i, num_indices;
 134        char stmp[32];
 135
 136        if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 137                i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
 138
 139                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 140                        sizeof(ATOM_GPIO_I2C_ASSIGMENT);
 141
 142                gpio = &i2c_info->asGPIO_Info[0];
 143                for (i = 0; i < num_indices; i++) {
 144                        amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
 145
 146                        i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
 147
 148                        if (i2c.valid) {
 149                                sprintf(stmp, "0x%x", i2c.i2c_id);
 150                                adev->i2c_bus[i] = amdgpu_i2c_create(adev->ddev, &i2c, stmp);
 151                        }
 152                        gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
 153                                ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
 154                }
 155        }
 156}
 157
 158struct amdgpu_gpio_rec
 159amdgpu_atombios_lookup_gpio(struct amdgpu_device *adev,
 160                            u8 id)
 161{
 162        struct atom_context *ctx = adev->mode_info.atom_context;
 163        struct amdgpu_gpio_rec gpio;
 164        int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
 165        struct _ATOM_GPIO_PIN_LUT *gpio_info;
 166        ATOM_GPIO_PIN_ASSIGNMENT *pin;
 167        u16 data_offset, size;
 168        int i, num_indices;
 169
 170        memset(&gpio, 0, sizeof(struct amdgpu_gpio_rec));
 171        gpio.valid = false;
 172
 173        if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
 174                gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);
 175
 176                num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 177                        sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
 178
 179                pin = gpio_info->asGPIO_Pin;
 180                for (i = 0; i < num_indices; i++) {
 181                        if (id == pin->ucGPIO_ID) {
 182                                gpio.id = pin->ucGPIO_ID;
 183                                gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex);
 184                                gpio.shift = pin->ucGpioPinBitShift;
 185                                gpio.mask = (1 << pin->ucGpioPinBitShift);
 186                                gpio.valid = true;
 187                                break;
 188                        }
 189                        pin = (ATOM_GPIO_PIN_ASSIGNMENT *)
 190                                ((u8 *)pin + sizeof(ATOM_GPIO_PIN_ASSIGNMENT));
 191                }
 192        }
 193
 194        return gpio;
 195}
 196
 197static struct amdgpu_hpd
 198amdgpu_atombios_get_hpd_info_from_gpio(struct amdgpu_device *adev,
 199                                       struct amdgpu_gpio_rec *gpio)
 200{
 201        struct amdgpu_hpd hpd;
 202        u32 reg;
 203
 204        memset(&hpd, 0, sizeof(struct amdgpu_hpd));
 205
 206        reg = amdgpu_display_hpd_get_gpio_reg(adev);
 207
 208        hpd.gpio = *gpio;
 209        if (gpio->reg == reg) {
 210                switch(gpio->mask) {
 211                case (1 << 0):
 212                        hpd.hpd = AMDGPU_HPD_1;
 213                        break;
 214                case (1 << 8):
 215                        hpd.hpd = AMDGPU_HPD_2;
 216                        break;
 217                case (1 << 16):
 218                        hpd.hpd = AMDGPU_HPD_3;
 219                        break;
 220                case (1 << 24):
 221                        hpd.hpd = AMDGPU_HPD_4;
 222                        break;
 223                case (1 << 26):
 224                        hpd.hpd = AMDGPU_HPD_5;
 225                        break;
 226                case (1 << 28):
 227                        hpd.hpd = AMDGPU_HPD_6;
 228                        break;
 229                default:
 230                        hpd.hpd = AMDGPU_HPD_NONE;
 231                        break;
 232                }
 233        } else
 234                hpd.hpd = AMDGPU_HPD_NONE;
 235        return hpd;
 236}
 237
 238static const int object_connector_convert[] = {
 239        DRM_MODE_CONNECTOR_Unknown,
 240        DRM_MODE_CONNECTOR_DVII,
 241        DRM_MODE_CONNECTOR_DVII,
 242        DRM_MODE_CONNECTOR_DVID,
 243        DRM_MODE_CONNECTOR_DVID,
 244        DRM_MODE_CONNECTOR_VGA,
 245        DRM_MODE_CONNECTOR_Composite,
 246        DRM_MODE_CONNECTOR_SVIDEO,
 247        DRM_MODE_CONNECTOR_Unknown,
 248        DRM_MODE_CONNECTOR_Unknown,
 249        DRM_MODE_CONNECTOR_9PinDIN,
 250        DRM_MODE_CONNECTOR_Unknown,
 251        DRM_MODE_CONNECTOR_HDMIA,
 252        DRM_MODE_CONNECTOR_HDMIB,
 253        DRM_MODE_CONNECTOR_LVDS,
 254        DRM_MODE_CONNECTOR_9PinDIN,
 255        DRM_MODE_CONNECTOR_Unknown,
 256        DRM_MODE_CONNECTOR_Unknown,
 257        DRM_MODE_CONNECTOR_Unknown,
 258        DRM_MODE_CONNECTOR_DisplayPort,
 259        DRM_MODE_CONNECTOR_eDP,
 260        DRM_MODE_CONNECTOR_Unknown
 261};
 262
 263bool amdgpu_atombios_has_dce_engine_info(struct amdgpu_device *adev)
 264{
 265        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 266        struct atom_context *ctx = mode_info->atom_context;
 267        int index = GetIndexIntoMasterTable(DATA, Object_Header);
 268        u16 size, data_offset;
 269        u8 frev, crev;
 270        ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
 271        ATOM_OBJECT_HEADER *obj_header;
 272
 273        if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
 274                return false;
 275
 276        if (crev < 2)
 277                return false;
 278
 279        obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
 280        path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
 281            (ctx->bios + data_offset +
 282             le16_to_cpu(obj_header->usDisplayPathTableOffset));
 283
 284        if (path_obj->ucNumOfDispPath)
 285                return true;
 286        else
 287                return false;
 288}
 289
 290bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *adev)
 291{
 292        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 293        struct atom_context *ctx = mode_info->atom_context;
 294        int index = GetIndexIntoMasterTable(DATA, Object_Header);
 295        u16 size, data_offset;
 296        u8 frev, crev;
 297        ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
 298        ATOM_ENCODER_OBJECT_TABLE *enc_obj;
 299        ATOM_OBJECT_TABLE *router_obj;
 300        ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
 301        ATOM_OBJECT_HEADER *obj_header;
 302        int i, j, k, path_size, device_support;
 303        int connector_type;
 304        u16 conn_id, connector_object_id;
 305        struct amdgpu_i2c_bus_rec ddc_bus;
 306        struct amdgpu_router router;
 307        struct amdgpu_gpio_rec gpio;
 308        struct amdgpu_hpd hpd;
 309
 310        if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
 311                return false;
 312
 313        if (crev < 2)
 314                return false;
 315
 316        obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
 317        path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
 318            (ctx->bios + data_offset +
 319             le16_to_cpu(obj_header->usDisplayPathTableOffset));
 320        con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
 321            (ctx->bios + data_offset +
 322             le16_to_cpu(obj_header->usConnectorObjectTableOffset));
 323        enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
 324            (ctx->bios + data_offset +
 325             le16_to_cpu(obj_header->usEncoderObjectTableOffset));
 326        router_obj = (ATOM_OBJECT_TABLE *)
 327                (ctx->bios + data_offset +
 328                 le16_to_cpu(obj_header->usRouterObjectTableOffset));
 329        device_support = le16_to_cpu(obj_header->usDeviceSupport);
 330
 331        path_size = 0;
 332        for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
 333                uint8_t *addr = (uint8_t *) path_obj->asDispPath;
 334                ATOM_DISPLAY_OBJECT_PATH *path;
 335                addr += path_size;
 336                path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
 337                path_size += le16_to_cpu(path->usSize);
 338
 339                if (device_support & le16_to_cpu(path->usDeviceTag)) {
 340                        uint8_t con_obj_id, con_obj_num, con_obj_type;
 341
 342                        con_obj_id =
 343                            (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
 344                            >> OBJECT_ID_SHIFT;
 345                        con_obj_num =
 346                            (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK)
 347                            >> ENUM_ID_SHIFT;
 348                        con_obj_type =
 349                            (le16_to_cpu(path->usConnObjectId) &
 350                             OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 351
 352                        /* Skip TV/CV support */
 353                        if ((le16_to_cpu(path->usDeviceTag) ==
 354                             ATOM_DEVICE_TV1_SUPPORT) ||
 355                            (le16_to_cpu(path->usDeviceTag) ==
 356                             ATOM_DEVICE_CV_SUPPORT))
 357                                continue;
 358
 359                        if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
 360                                DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
 361                                          con_obj_id, le16_to_cpu(path->usDeviceTag));
 362                                continue;
 363                        }
 364
 365                        connector_type =
 366                                object_connector_convert[con_obj_id];
 367                        connector_object_id = con_obj_id;
 368
 369                        if (connector_type == DRM_MODE_CONNECTOR_Unknown)
 370                                continue;
 371
 372                        router.ddc_valid = false;
 373                        router.cd_valid = false;
 374                        for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
 375                                uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
 376
 377                                grph_obj_id =
 378                                    (le16_to_cpu(path->usGraphicObjIds[j]) &
 379                                     OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
 380                                grph_obj_num =
 381                                    (le16_to_cpu(path->usGraphicObjIds[j]) &
 382                                     ENUM_ID_MASK) >> ENUM_ID_SHIFT;
 383                                grph_obj_type =
 384                                    (le16_to_cpu(path->usGraphicObjIds[j]) &
 385                                     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 386
 387                                if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
 388                                        for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
 389                                                u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
 390                                                if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
 391                                                        ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 392                                                                (ctx->bios + data_offset +
 393                                                                 le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
 394                                                        ATOM_ENCODER_CAP_RECORD *cap_record;
 395                                                        u16 caps = 0;
 396
 397                                                        while (record->ucRecordSize > 0 &&
 398                                                               record->ucRecordType > 0 &&
 399                                                               record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 400                                                                switch (record->ucRecordType) {
 401                                                                case ATOM_ENCODER_CAP_RECORD_TYPE:
 402                                                                        cap_record =(ATOM_ENCODER_CAP_RECORD *)
 403                                                                                record;
 404                                                                        caps = le16_to_cpu(cap_record->usEncoderCap);
 405                                                                        break;
 406                                                                }
 407                                                                record = (ATOM_COMMON_RECORD_HEADER *)
 408                                                                        ((char *)record + record->ucRecordSize);
 409                                                        }
 410                                                        amdgpu_display_add_encoder(adev, encoder_obj,
 411                                                                                    le16_to_cpu(path->usDeviceTag),
 412                                                                                    caps);
 413                                                }
 414                                        }
 415                                } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
 416                                        for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
 417                                                u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
 418                                                if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
 419                                                        ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
 420                                                                (ctx->bios + data_offset +
 421                                                                 le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
 422                                                        ATOM_I2C_RECORD *i2c_record;
 423                                                        ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 424                                                        ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
 425                                                        ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
 426                                                        ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
 427                                                                (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
 428                                                                (ctx->bios + data_offset +
 429                                                                 le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
 430                                                        u8 *num_dst_objs = (u8 *)
 431                                                                ((u8 *)router_src_dst_table + 1 +
 432                                                                 (router_src_dst_table->ucNumberOfSrc * 2));
 433                                                        u16 *dst_objs = (u16 *)(num_dst_objs + 1);
 434                                                        int enum_id;
 435
 436                                                        router.router_id = router_obj_id;
 437                                                        for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
 438                                                                if (le16_to_cpu(path->usConnObjectId) ==
 439                                                                    le16_to_cpu(dst_objs[enum_id]))
 440                                                                        break;
 441                                                        }
 442
 443                                                        while (record->ucRecordSize > 0 &&
 444                                                               record->ucRecordType > 0 &&
 445                                                               record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 446                                                                switch (record->ucRecordType) {
 447                                                                case ATOM_I2C_RECORD_TYPE:
 448                                                                        i2c_record =
 449                                                                                (ATOM_I2C_RECORD *)
 450                                                                                record;
 451                                                                        i2c_config =
 452                                                                                (ATOM_I2C_ID_CONFIG_ACCESS *)
 453                                                                                &i2c_record->sucI2cId;
 454                                                                        router.i2c_info =
 455                                                                                amdgpu_atombios_lookup_i2c_gpio(adev,
 456                                                                                                       i2c_config->
 457                                                                                                       ucAccess);
 458                                                                        router.i2c_addr = i2c_record->ucI2CAddr >> 1;
 459                                                                        break;
 460                                                                case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
 461                                                                        ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
 462                                                                                record;
 463                                                                        router.ddc_valid = true;
 464                                                                        router.ddc_mux_type = ddc_path->ucMuxType;
 465                                                                        router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
 466                                                                        router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
 467                                                                        break;
 468                                                                case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
 469                                                                        cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
 470                                                                                record;
 471                                                                        router.cd_valid = true;
 472                                                                        router.cd_mux_type = cd_path->ucMuxType;
 473                                                                        router.cd_mux_control_pin = cd_path->ucMuxControlPin;
 474                                                                        router.cd_mux_state = cd_path->ucMuxState[enum_id];
 475                                                                        break;
 476                                                                }
 477                                                                record = (ATOM_COMMON_RECORD_HEADER *)
 478                                                                        ((char *)record + record->ucRecordSize);
 479                                                        }
 480                                                }
 481                                        }
 482                                }
 483                        }
 484
 485                        /* look up gpio for ddc, hpd */
 486                        ddc_bus.valid = false;
 487                        hpd.hpd = AMDGPU_HPD_NONE;
 488                        if ((le16_to_cpu(path->usDeviceTag) &
 489                             (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
 490                                for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
 491                                        if (le16_to_cpu(path->usConnObjectId) ==
 492                                            le16_to_cpu(con_obj->asObjects[j].
 493                                                        usObjectID)) {
 494                                                ATOM_COMMON_RECORD_HEADER
 495                                                    *record =
 496                                                    (ATOM_COMMON_RECORD_HEADER
 497                                                     *)
 498                                                    (ctx->bios + data_offset +
 499                                                     le16_to_cpu(con_obj->
 500                                                                 asObjects[j].
 501                                                                 usRecordOffset));
 502                                                ATOM_I2C_RECORD *i2c_record;
 503                                                ATOM_HPD_INT_RECORD *hpd_record;
 504                                                ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
 505
 506                                                while (record->ucRecordSize > 0 &&
 507                                                       record->ucRecordType > 0 &&
 508                                                       record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
 509                                                        switch (record->ucRecordType) {
 510                                                        case ATOM_I2C_RECORD_TYPE:
 511                                                                i2c_record =
 512                                                                    (ATOM_I2C_RECORD *)
 513                                                                        record;
 514                                                                i2c_config =
 515                                                                        (ATOM_I2C_ID_CONFIG_ACCESS *)
 516                                                                        &i2c_record->sucI2cId;
 517                                                                ddc_bus = amdgpu_atombios_lookup_i2c_gpio(adev,
 518                                                                                                 i2c_config->
 519                                                                                                 ucAccess);
 520                                                                break;
 521                                                        case ATOM_HPD_INT_RECORD_TYPE:
 522                                                                hpd_record =
 523                                                                        (ATOM_HPD_INT_RECORD *)
 524                                                                        record;
 525                                                                gpio = amdgpu_atombios_lookup_gpio(adev,
 526                                                                                          hpd_record->ucHPDIntGPIOID);
 527                                                                hpd = amdgpu_atombios_get_hpd_info_from_gpio(adev, &gpio);
 528                                                                hpd.plugged_state = hpd_record->ucPlugged_PinState;
 529                                                                break;
 530                                                        }
 531                                                        record =
 532                                                            (ATOM_COMMON_RECORD_HEADER
 533                                                             *) ((char *)record
 534                                                                 +
 535                                                                 record->
 536                                                                 ucRecordSize);
 537                                                }
 538                                                break;
 539                                        }
 540                                }
 541                        }
 542
 543                        /* needed for aux chan transactions */
 544                        ddc_bus.hpd = hpd.hpd;
 545
 546                        conn_id = le16_to_cpu(path->usConnObjectId);
 547
 548                        amdgpu_display_add_connector(adev,
 549                                                      conn_id,
 550                                                      le16_to_cpu(path->usDeviceTag),
 551                                                      connector_type, &ddc_bus,
 552                                                      connector_object_id,
 553                                                      &hpd,
 554                                                      &router);
 555
 556                }
 557        }
 558
 559        amdgpu_link_encoder_connector(adev->ddev);
 560
 561        return true;
 562}
 563
 564union firmware_info {
 565        ATOM_FIRMWARE_INFO info;
 566        ATOM_FIRMWARE_INFO_V1_2 info_12;
 567        ATOM_FIRMWARE_INFO_V1_3 info_13;
 568        ATOM_FIRMWARE_INFO_V1_4 info_14;
 569        ATOM_FIRMWARE_INFO_V2_1 info_21;
 570        ATOM_FIRMWARE_INFO_V2_2 info_22;
 571};
 572
 573int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
 574{
 575        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 576        int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
 577        uint8_t frev, crev;
 578        uint16_t data_offset;
 579        int ret = -EINVAL;
 580
 581        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 582                                   &frev, &crev, &data_offset)) {
 583                int i;
 584                struct amdgpu_pll *ppll = &adev->clock.ppll[0];
 585                struct amdgpu_pll *spll = &adev->clock.spll;
 586                struct amdgpu_pll *mpll = &adev->clock.mpll;
 587                union firmware_info *firmware_info =
 588                        (union firmware_info *)(mode_info->atom_context->bios +
 589                                                data_offset);
 590                /* pixel clocks */
 591                ppll->reference_freq =
 592                    le16_to_cpu(firmware_info->info.usReferenceClock);
 593                ppll->reference_div = 0;
 594
 595                ppll->pll_out_min =
 596                        le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
 597                ppll->pll_out_max =
 598                    le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
 599
 600                ppll->lcd_pll_out_min =
 601                        le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
 602                if (ppll->lcd_pll_out_min == 0)
 603                        ppll->lcd_pll_out_min = ppll->pll_out_min;
 604                ppll->lcd_pll_out_max =
 605                        le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
 606                if (ppll->lcd_pll_out_max == 0)
 607                        ppll->lcd_pll_out_max = ppll->pll_out_max;
 608
 609                if (ppll->pll_out_min == 0)
 610                        ppll->pll_out_min = 64800;
 611
 612                ppll->pll_in_min =
 613                    le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
 614                ppll->pll_in_max =
 615                    le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);
 616
 617                ppll->min_post_div = 2;
 618                ppll->max_post_div = 0x7f;
 619                ppll->min_frac_feedback_div = 0;
 620                ppll->max_frac_feedback_div = 9;
 621                ppll->min_ref_div = 2;
 622                ppll->max_ref_div = 0x3ff;
 623                ppll->min_feedback_div = 4;
 624                ppll->max_feedback_div = 0xfff;
 625                ppll->best_vco = 0;
 626
 627                for (i = 1; i < AMDGPU_MAX_PPLL; i++)
 628                        adev->clock.ppll[i] = *ppll;
 629
 630                /* system clock */
 631                spll->reference_freq =
 632                        le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
 633                spll->reference_div = 0;
 634
 635                spll->pll_out_min =
 636                    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
 637                spll->pll_out_max =
 638                    le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);
 639
 640                /* ??? */
 641                if (spll->pll_out_min == 0)
 642                        spll->pll_out_min = 64800;
 643
 644                spll->pll_in_min =
 645                    le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
 646                spll->pll_in_max =
 647                    le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
 648
 649                spll->min_post_div = 1;
 650                spll->max_post_div = 1;
 651                spll->min_ref_div = 2;
 652                spll->max_ref_div = 0xff;
 653                spll->min_feedback_div = 4;
 654                spll->max_feedback_div = 0xff;
 655                spll->best_vco = 0;
 656
 657                /* memory clock */
 658                mpll->reference_freq =
 659                        le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
 660                mpll->reference_div = 0;
 661
 662                mpll->pll_out_min =
 663                    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
 664                mpll->pll_out_max =
 665                    le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);
 666
 667                /* ??? */
 668                if (mpll->pll_out_min == 0)
 669                        mpll->pll_out_min = 64800;
 670
 671                mpll->pll_in_min =
 672                    le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
 673                mpll->pll_in_max =
 674                    le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);
 675
 676                adev->clock.default_sclk =
 677                    le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
 678                adev->clock.default_mclk =
 679                    le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);
 680
 681                mpll->min_post_div = 1;
 682                mpll->max_post_div = 1;
 683                mpll->min_ref_div = 2;
 684                mpll->max_ref_div = 0xff;
 685                mpll->min_feedback_div = 4;
 686                mpll->max_feedback_div = 0xff;
 687                mpll->best_vco = 0;
 688
 689                /* disp clock */
 690                adev->clock.default_dispclk =
 691                        le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
 692                /* set a reasonable default for DP */
 693                if (adev->clock.default_dispclk < 53900) {
 694                        DRM_DEBUG("Changing default dispclk from %dMhz to 600Mhz\n",
 695                                  adev->clock.default_dispclk / 100);
 696                        adev->clock.default_dispclk = 60000;
 697                } else if (adev->clock.default_dispclk <= 60000) {
 698                        DRM_DEBUG("Changing default dispclk from %dMhz to 625Mhz\n",
 699                                  adev->clock.default_dispclk / 100);
 700                        adev->clock.default_dispclk = 62500;
 701                }
 702                adev->clock.dp_extclk =
 703                        le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
 704                adev->clock.current_dispclk = adev->clock.default_dispclk;
 705
 706                adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
 707                if (adev->clock.max_pixel_clock == 0)
 708                        adev->clock.max_pixel_clock = 40000;
 709
 710                /* not technically a clock, but... */
 711                adev->mode_info.firmware_flags =
 712                        le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
 713
 714                ret = 0;
 715        }
 716
 717        adev->pm.current_sclk = adev->clock.default_sclk;
 718        adev->pm.current_mclk = adev->clock.default_mclk;
 719
 720        return ret;
 721}
 722
 723union gfx_info {
 724        ATOM_GFX_INFO_V2_1 info;
 725};
 726
 727int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
 728{
 729        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 730        int index = GetIndexIntoMasterTable(DATA, GFX_Info);
 731        uint8_t frev, crev;
 732        uint16_t data_offset;
 733        int ret = -EINVAL;
 734
 735        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
 736                                   &frev, &crev, &data_offset)) {
 737                union gfx_info *gfx_info = (union gfx_info *)
 738                        (mode_info->atom_context->bios + data_offset);
 739
 740                adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
 741                adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
 742                adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
 743                adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
 744                adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
 745                adev->gfx.config.max_texture_channel_caches =
 746                        gfx_info->info.max_texture_channel_caches;
 747
 748                ret = 0;
 749        }
 750        return ret;
 751}
 752
 753union igp_info {
 754        struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 755        struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
 756        struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
 757        struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
 758        struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
 759        struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
 760};
 761
 762/*
 763 * Return vram width from integrated system info table, if available,
 764 * or 0 if not.
 765 */
 766int amdgpu_atombios_get_vram_width(struct amdgpu_device *adev)
 767{
 768        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 769        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 770        u16 data_offset, size;
 771        union igp_info *igp_info;
 772        u8 frev, crev;
 773
 774        /* get any igp specific overrides */
 775        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 776                                   &frev, &crev, &data_offset)) {
 777                igp_info = (union igp_info *)
 778                        (mode_info->atom_context->bios + data_offset);
 779                switch (crev) {
 780                case 8:
 781                case 9:
 782                        return igp_info->info_8.ucUMAChannelNumber * 64;
 783                default:
 784                        return 0;
 785                }
 786        }
 787
 788        return 0;
 789}
 790
 791static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
 792                                                 struct amdgpu_atom_ss *ss,
 793                                                 int id)
 794{
 795        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 796        int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 797        u16 data_offset, size;
 798        union igp_info *igp_info;
 799        u8 frev, crev;
 800        u16 percentage = 0, rate = 0;
 801
 802        /* get any igp specific overrides */
 803        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 804                                   &frev, &crev, &data_offset)) {
 805                igp_info = (union igp_info *)
 806                        (mode_info->atom_context->bios + data_offset);
 807                switch (crev) {
 808                case 6:
 809                        switch (id) {
 810                        case ASIC_INTERNAL_SS_ON_TMDS:
 811                                percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
 812                                rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
 813                                break;
 814                        case ASIC_INTERNAL_SS_ON_HDMI:
 815                                percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
 816                                rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
 817                                break;
 818                        case ASIC_INTERNAL_SS_ON_LVDS:
 819                                percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
 820                                rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
 821                                break;
 822                        }
 823                        break;
 824                case 7:
 825                        switch (id) {
 826                        case ASIC_INTERNAL_SS_ON_TMDS:
 827                                percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
 828                                rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
 829                                break;
 830                        case ASIC_INTERNAL_SS_ON_HDMI:
 831                                percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
 832                                rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
 833                                break;
 834                        case ASIC_INTERNAL_SS_ON_LVDS:
 835                                percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
 836                                rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
 837                                break;
 838                        }
 839                        break;
 840                case 8:
 841                        switch (id) {
 842                        case ASIC_INTERNAL_SS_ON_TMDS:
 843                                percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
 844                                rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
 845                                break;
 846                        case ASIC_INTERNAL_SS_ON_HDMI:
 847                                percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
 848                                rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
 849                                break;
 850                        case ASIC_INTERNAL_SS_ON_LVDS:
 851                                percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
 852                                rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
 853                                break;
 854                        }
 855                        break;
 856                case 9:
 857                        switch (id) {
 858                        case ASIC_INTERNAL_SS_ON_TMDS:
 859                                percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
 860                                rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
 861                                break;
 862                        case ASIC_INTERNAL_SS_ON_HDMI:
 863                                percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
 864                                rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
 865                                break;
 866                        case ASIC_INTERNAL_SS_ON_LVDS:
 867                                percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
 868                                rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
 869                                break;
 870                        }
 871                        break;
 872                default:
 873                        DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
 874                        break;
 875                }
 876                if (percentage)
 877                        ss->percentage = percentage;
 878                if (rate)
 879                        ss->rate = rate;
 880        }
 881}
 882
 883union asic_ss_info {
 884        struct _ATOM_ASIC_INTERNAL_SS_INFO info;
 885        struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
 886        struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
 887};
 888
 889union asic_ss_assignment {
 890        struct _ATOM_ASIC_SS_ASSIGNMENT v1;
 891        struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
 892        struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
 893};
 894
 895bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
 896                                      struct amdgpu_atom_ss *ss,
 897                                      int id, u32 clock)
 898{
 899        struct amdgpu_mode_info *mode_info = &adev->mode_info;
 900        int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
 901        uint16_t data_offset, size;
 902        union asic_ss_info *ss_info;
 903        union asic_ss_assignment *ss_assign;
 904        uint8_t frev, crev;
 905        int i, num_indices;
 906
 907        if (id == ASIC_INTERNAL_MEMORY_SS) {
 908                if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
 909                        return false;
 910        }
 911        if (id == ASIC_INTERNAL_ENGINE_SS) {
 912                if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
 913                        return false;
 914        }
 915
 916        memset(ss, 0, sizeof(struct amdgpu_atom_ss));
 917        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
 918                                   &frev, &crev, &data_offset)) {
 919
 920                ss_info =
 921                        (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
 922
 923                switch (frev) {
 924                case 1:
 925                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 926                                sizeof(ATOM_ASIC_SS_ASSIGNMENT);
 927
 928                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
 929                        for (i = 0; i < num_indices; i++) {
 930                                if ((ss_assign->v1.ucClockIndication == id) &&
 931                                    (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
 932                                        ss->percentage =
 933                                                le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
 934                                        ss->type = ss_assign->v1.ucSpreadSpectrumMode;
 935                                        ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
 936                                        ss->percentage_divider = 100;
 937                                        return true;
 938                                }
 939                                ss_assign = (union asic_ss_assignment *)
 940                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
 941                        }
 942                        break;
 943                case 2:
 944                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 945                                sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
 946                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
 947                        for (i = 0; i < num_indices; i++) {
 948                                if ((ss_assign->v2.ucClockIndication == id) &&
 949                                    (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
 950                                        ss->percentage =
 951                                                le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
 952                                        ss->type = ss_assign->v2.ucSpreadSpectrumMode;
 953                                        ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
 954                                        ss->percentage_divider = 100;
 955                                        if ((crev == 2) &&
 956                                            ((id == ASIC_INTERNAL_ENGINE_SS) ||
 957                                             (id == ASIC_INTERNAL_MEMORY_SS)))
 958                                                ss->rate /= 100;
 959                                        return true;
 960                                }
 961                                ss_assign = (union asic_ss_assignment *)
 962                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
 963                        }
 964                        break;
 965                case 3:
 966                        num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
 967                                sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
 968                        ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
 969                        for (i = 0; i < num_indices; i++) {
 970                                if ((ss_assign->v3.ucClockIndication == id) &&
 971                                    (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
 972                                        ss->percentage =
 973                                                le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
 974                                        ss->type = ss_assign->v3.ucSpreadSpectrumMode;
 975                                        ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
 976                                        if (ss_assign->v3.ucSpreadSpectrumMode &
 977                                            SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
 978                                                ss->percentage_divider = 1000;
 979                                        else
 980                                                ss->percentage_divider = 100;
 981                                        if ((id == ASIC_INTERNAL_ENGINE_SS) ||
 982                                            (id == ASIC_INTERNAL_MEMORY_SS))
 983                                                ss->rate /= 100;
 984                                        if (adev->flags & AMD_IS_APU)
 985                                                amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
 986                                        return true;
 987                                }
 988                                ss_assign = (union asic_ss_assignment *)
 989                                        ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
 990                        }
 991                        break;
 992                default:
 993                        DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
 994                        break;
 995                }
 996
 997        }
 998        return false;
 999}
1000
1001union get_clock_dividers {
1002        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
1003        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
1004        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
1005        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
1006        struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
1007        struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
1008        struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
1009};
1010
1011int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
1012                                       u8 clock_type,
1013                                       u32 clock,
1014                                       bool strobe_mode,
1015                                       struct atom_clock_dividers *dividers)
1016{
1017        union get_clock_dividers args;
1018        int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
1019        u8 frev, crev;
1020
1021        memset(&args, 0, sizeof(args));
1022        memset(dividers, 0, sizeof(struct atom_clock_dividers));
1023
1024        if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1025                return -EINVAL;
1026
1027        switch (crev) {
1028        case 2:
1029        case 3:
1030        case 5:
1031                /* r6xx, r7xx, evergreen, ni, si.
1032                 * TODO: add support for asic_type <= CHIP_RV770*/
1033                if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
1034                        args.v3.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1035
1036                        amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1037
1038                        dividers->post_div = args.v3.ucPostDiv;
1039                        dividers->enable_post_div = (args.v3.ucCntlFlag &
1040                                                     ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1041                        dividers->enable_dithen = (args.v3.ucCntlFlag &
1042                                                   ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1043                        dividers->whole_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
1044                        dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
1045                        dividers->ref_div = args.v3.ucRefDiv;
1046                        dividers->vco_mode = (args.v3.ucCntlFlag &
1047                                              ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1048                } else {
1049                        /* for SI we use ComputeMemoryClockParam for memory plls */
1050                        if (adev->asic_type >= CHIP_TAHITI)
1051                                return -EINVAL;
1052                        args.v5.ulClockParams = cpu_to_le32((clock_type << 24) | clock);
1053                        if (strobe_mode)
1054                                args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
1055
1056                        amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1057
1058                        dividers->post_div = args.v5.ucPostDiv;
1059                        dividers->enable_post_div = (args.v5.ucCntlFlag &
1060                                                     ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
1061                        dividers->enable_dithen = (args.v5.ucCntlFlag &
1062                                                   ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
1063                        dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
1064                        dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
1065                        dividers->ref_div = args.v5.ucRefDiv;
1066                        dividers->vco_mode = (args.v5.ucCntlFlag &
1067                                              ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
1068                }
1069                break;
1070        case 4:
1071                /* fusion */
1072                args.v4.ulClock = cpu_to_le32(clock);   /* 10 khz */
1073
1074                amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1075
1076                dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1077                dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1078                break;
1079        case 6:
1080                /* CI */
1081                /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1082                args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1083                args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock);    /* 10 khz */
1084
1085                amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1086
1087                dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1088                dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1089                dividers->ref_div = args.v6_out.ucPllRefDiv;
1090                dividers->post_div = args.v6_out.ucPllPostDiv;
1091                dividers->flags = args.v6_out.ucPllCntlFlag;
1092                dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1093                dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1094                break;
1095        default:
1096                return -EINVAL;
1097        }
1098        return 0;
1099}
1100
1101int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1102                                            u32 clock,
1103                                            bool strobe_mode,
1104                                            struct atom_mpll_param *mpll_param)
1105{
1106        COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1107        int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1108        u8 frev, crev;
1109
1110        memset(&args, 0, sizeof(args));
1111        memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1112
1113        if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1114                return -EINVAL;
1115
1116        switch (frev) {
1117        case 2:
1118                switch (crev) {
1119                case 1:
1120                        /* SI */
1121                        args.ulClock = cpu_to_le32(clock);      /* 10 khz */
1122                        args.ucInputFlag = 0;
1123                        if (strobe_mode)
1124                                args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1125
1126                        amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1127
1128                        mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1129                        mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1130                        mpll_param->post_div = args.ucPostDiv;
1131                        mpll_param->dll_speed = args.ucDllSpeed;
1132                        mpll_param->bwcntl = args.ucBWCntl;
1133                        mpll_param->vco_mode =
1134                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1135                        mpll_param->yclk_sel =
1136                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1137                        mpll_param->qdr =
1138                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1139                        mpll_param->half_rate =
1140                                (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1141                        break;
1142                default:
1143                        return -EINVAL;
1144                }
1145                break;
1146        default:
1147                return -EINVAL;
1148        }
1149        return 0;
1150}
1151
1152void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1153                                             u32 eng_clock, u32 mem_clock)
1154{
1155        SET_ENGINE_CLOCK_PS_ALLOCATION args;
1156        int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1157        u32 tmp;
1158
1159        memset(&args, 0, sizeof(args));
1160
1161        tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1162        tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1163
1164        args.ulTargetEngineClock = cpu_to_le32(tmp);
1165        if (mem_clock)
1166                args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1167
1168        amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1169}
1170
1171void amdgpu_atombios_get_default_voltages(struct amdgpu_device *adev,
1172                                          u16 *vddc, u16 *vddci, u16 *mvdd)
1173{
1174        struct amdgpu_mode_info *mode_info = &adev->mode_info;
1175        int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
1176        u8 frev, crev;
1177        u16 data_offset;
1178        union firmware_info *firmware_info;
1179
1180        *vddc = 0;
1181        *vddci = 0;
1182        *mvdd = 0;
1183
1184        if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
1185                                   &frev, &crev, &data_offset)) {
1186                firmware_info =
1187                        (union firmware_info *)(mode_info->atom_context->bios +
1188                                                data_offset);
1189                *vddc = le16_to_cpu(firmware_info->info_14.usBootUpVDDCVoltage);
1190                if ((frev == 2) && (crev >= 2)) {
1191                        *vddci = le16_to_cpu(firmware_info->info_22.usBootUpVDDCIVoltage);
1192                        *mvdd = le16_to_cpu(firmware_info->info_22.usBootUpMVDDCVoltage);
1193                }
1194        }
1195}
1196
1197union set_voltage {
1198        struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1199        struct _SET_VOLTAGE_PARAMETERS v1;
1200        struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1201        struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1202};
1203
1204int amdgpu_atombios_get_max_vddc(struct amdgpu_device *adev, u8 voltage_type,
1205                             u16 voltage_id, u16 *voltage)
1206{
1207        union set_voltage args;
1208        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1209        u8 frev, crev;
1210
1211        if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1212                return -EINVAL;
1213
1214        switch (crev) {
1215        case 1:
1216                return -EINVAL;
1217        case 2:
1218                args.v2.ucVoltageType = SET_VOLTAGE_GET_MAX_VOLTAGE;
1219                args.v2.ucVoltageMode = 0;
1220                args.v2.usVoltageLevel = 0;
1221
1222                amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1223
1224                *voltage = le16_to_cpu(args.v2.usVoltageLevel);
1225                break;
1226        case 3:
1227                args.v3.ucVoltageType = voltage_type;
1228                args.v3.ucVoltageMode = ATOM_GET_VOLTAGE_LEVEL;
1229                args.v3.usVoltageLevel = cpu_to_le16(voltage_id);
1230
1231                amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1232
1233                *voltage = le16_to_cpu(args.v3.usVoltageLevel);
1234                break;
1235        default:
1236                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1237                return -EINVAL;
1238        }
1239
1240        return 0;
1241}
1242
1243int amdgpu_atombios_get_leakage_vddc_based_on_leakage_idx(struct amdgpu_device *adev,
1244                                                      u16 *voltage,
1245                                                      u16 leakage_idx)
1246{
1247        return amdgpu_atombios_get_max_vddc(adev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
1248}
1249
1250int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
1251                                              u16 *leakage_id)
1252{
1253        union set_voltage args;
1254        int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1255        u8 frev, crev;
1256
1257        if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1258                return -EINVAL;
1259
1260        switch (crev) {
1261        case 3:
1262        case 4:
1263                args.v3.ucVoltageType = 0;
1264                args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
1265                args.v3.usVoltageLevel = 0;
1266
1267                amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1268
1269                *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
1270                break;
1271        default:
1272                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1273                return -EINVAL;
1274        }
1275
1276        return 0;
1277}
1278
1279int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
1280                                                             u16 *vddc, u16 *vddci,
1281                                                             u16 virtual_voltage_id,
1282                                                             u16 vbios_voltage_id)
1283{
1284        int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
1285        u8 frev, crev;
1286        u16 data_offset, size;
1287        int i, j;
1288        ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
1289        u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
1290
1291        *vddc = 0;
1292        *vddci = 0;
1293
1294        if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1295                                    &frev, &crev, &data_offset))
1296                return -EINVAL;
1297
1298        profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
1299                (adev->mode_info.atom_context->bios + data_offset);
1300
1301        switch (frev) {
1302        case 1:
1303                return -EINVAL;
1304        case 2:
1305                switch (crev) {
1306                case 1:
1307                        if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
1308                                return -EINVAL;
1309                        leakage_bin = (u16 *)
1310                                (adev->mode_info.atom_context->bios + data_offset +
1311                                 le16_to_cpu(profile->usLeakageBinArrayOffset));
1312                        vddc_id_buf = (u16 *)
1313                                (adev->mode_info.atom_context->bios + data_offset +
1314                                 le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
1315                        vddc_buf = (u16 *)
1316                                (adev->mode_info.atom_context->bios + data_offset +
1317                                 le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
1318                        vddci_id_buf = (u16 *)
1319                                (adev->mode_info.atom_context->bios + data_offset +
1320                                 le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
1321                        vddci_buf = (u16 *)
1322                                (adev->mode_info.atom_context->bios + data_offset +
1323                                 le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
1324
1325                        if (profile->ucElbVDDC_Num > 0) {
1326                                for (i = 0; i < profile->ucElbVDDC_Num; i++) {
1327                                        if (vddc_id_buf[i] == virtual_voltage_id) {
1328                                                for (j = 0; j < profile->ucLeakageBinNum; j++) {
1329                                                        if (vbios_voltage_id <= leakage_bin[j]) {
1330                                                                *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
1331                                                                break;
1332                                                        }
1333                                                }
1334                                                break;
1335                                        }
1336                                }
1337                        }
1338                        if (profile->ucElbVDDCI_Num > 0) {
1339                                for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
1340                                        if (vddci_id_buf[i] == virtual_voltage_id) {
1341                                                for (j = 0; j < profile->ucLeakageBinNum; j++) {
1342                                                        if (vbios_voltage_id <= leakage_bin[j]) {
1343                                                                *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
1344                                                                break;
1345                                                        }
1346                                                }
1347                                                break;
1348                                        }
1349                                }
1350                        }
1351                        break;
1352                default:
1353                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1354                        return -EINVAL;
1355                }
1356                break;
1357        default:
1358                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1359                return -EINVAL;
1360        }
1361
1362        return 0;
1363}
1364
1365union get_voltage_info {
1366        struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
1367        struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
1368};
1369
1370int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
1371                                    u16 virtual_voltage_id,
1372                                    u16 *voltage)
1373{
1374        int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
1375        u32 entry_id;
1376        u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
1377        union get_voltage_info args;
1378
1379        for (entry_id = 0; entry_id < count; entry_id++) {
1380                if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
1381                    virtual_voltage_id)
1382                        break;
1383        }
1384
1385        if (entry_id >= count)
1386                return -EINVAL;
1387
1388        args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
1389        args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
1390        args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
1391        args.in.ulSCLKFreq =
1392                cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
1393
1394        amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1395
1396        *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
1397
1398        return 0;
1399}
1400
1401union voltage_object_info {
1402        struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1403        struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1404        struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1405};
1406
1407union voltage_object {
1408        struct _ATOM_VOLTAGE_OBJECT v1;
1409        struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1410        union _ATOM_VOLTAGE_OBJECT_V3 v3;
1411};
1412
1413
1414static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1415                                                                        u8 voltage_type, u8 voltage_mode)
1416{
1417        u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1418        u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1419        u8 *start = (u8*)v3;
1420
1421        while (offset < size) {
1422                ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1423                if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1424                    (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1425                        return vo;
1426                offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1427        }
1428        return NULL;
1429}
1430
1431int amdgpu_atombios_get_svi2_info(struct amdgpu_device *adev,
1432                              u8 voltage_type,
1433                              u8 *svd_gpio_id, u8 *svc_gpio_id)
1434{
1435        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1436        u8 frev, crev;
1437        u16 data_offset, size;
1438        union voltage_object_info *voltage_info;
1439        union voltage_object *voltage_object = NULL;
1440
1441        if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1442                                   &frev, &crev, &data_offset)) {
1443                voltage_info = (union voltage_object_info *)
1444                        (adev->mode_info.atom_context->bios + data_offset);
1445
1446                switch (frev) {
1447                case 3:
1448                        switch (crev) {
1449                        case 1:
1450                                voltage_object = (union voltage_object *)
1451                                        amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1452                                                                      voltage_type,
1453                                                                      VOLTAGE_OBJ_SVID2);
1454                                if (voltage_object) {
1455                                        *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId;
1456                                        *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId;
1457                                } else {
1458                                        return -EINVAL;
1459                                }
1460                                break;
1461                        default:
1462                                DRM_ERROR("unknown voltage object table\n");
1463                                return -EINVAL;
1464                        }
1465                        break;
1466                default:
1467                        DRM_ERROR("unknown voltage object table\n");
1468                        return -EINVAL;
1469                }
1470
1471        }
1472        return 0;
1473}
1474
1475bool
1476amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1477                                u8 voltage_type, u8 voltage_mode)
1478{
1479        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1480        u8 frev, crev;
1481        u16 data_offset, size;
1482        union voltage_object_info *voltage_info;
1483
1484        if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1485                                   &frev, &crev, &data_offset)) {
1486                voltage_info = (union voltage_object_info *)
1487                        (adev->mode_info.atom_context->bios + data_offset);
1488
1489                switch (frev) {
1490                case 3:
1491                        switch (crev) {
1492                        case 1:
1493                                if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1494                                                                  voltage_type, voltage_mode))
1495                                        return true;
1496                                break;
1497                        default:
1498                                DRM_ERROR("unknown voltage object table\n");
1499                                return false;
1500                        }
1501                        break;
1502                default:
1503                        DRM_ERROR("unknown voltage object table\n");
1504                        return false;
1505                }
1506
1507        }
1508        return false;
1509}
1510
1511int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1512                                      u8 voltage_type, u8 voltage_mode,
1513                                      struct atom_voltage_table *voltage_table)
1514{
1515        int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1516        u8 frev, crev;
1517        u16 data_offset, size;
1518        int i;
1519        union voltage_object_info *voltage_info;
1520        union voltage_object *voltage_object = NULL;
1521
1522        if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1523                                   &frev, &crev, &data_offset)) {
1524                voltage_info = (union voltage_object_info *)
1525                        (adev->mode_info.atom_context->bios + data_offset);
1526
1527                switch (frev) {
1528                case 3:
1529                        switch (crev) {
1530                        case 1:
1531                                voltage_object = (union voltage_object *)
1532                                        amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1533                                                                      voltage_type, voltage_mode);
1534                                if (voltage_object) {
1535                                        ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1536                                                &voltage_object->v3.asGpioVoltageObj;
1537                                        VOLTAGE_LUT_ENTRY_V2 *lut;
1538                                        if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1539                                                return -EINVAL;
1540                                        lut = &gpio->asVolGpioLut[0];
1541                                        for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1542                                                voltage_table->entries[i].value =
1543                                                        le16_to_cpu(lut->usVoltageValue);
1544                                                voltage_table->entries[i].smio_low =
1545                                                        le32_to_cpu(lut->ulVoltageId);
1546                                                lut = (VOLTAGE_LUT_ENTRY_V2 *)
1547                                                        ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1548                                        }
1549                                        voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1550                                        voltage_table->count = gpio->ucGpioEntryNum;
1551                                        voltage_table->phase_delay = gpio->ucPhaseDelay;
1552                                        return 0;
1553                                }
1554                                break;
1555                        default:
1556                                DRM_ERROR("unknown voltage object table\n");
1557                                return -EINVAL;
1558                        }
1559                        break;
1560                default:
1561                        DRM_ERROR("unknown voltage object table\n");
1562                        return -EINVAL;
1563                }
1564        }
1565        return -EINVAL;
1566}
1567
1568union vram_info {
1569        struct _ATOM_VRAM_INFO_V3 v1_3;
1570        struct _ATOM_VRAM_INFO_V4 v1_4;
1571        struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1572};
1573
1574#define MEM_ID_MASK           0xff000000
1575#define MEM_ID_SHIFT          24
1576#define CLOCK_RANGE_MASK      0x00ffffff
1577#define CLOCK_RANGE_SHIFT     0
1578#define LOW_NIBBLE_MASK       0xf
1579#define DATA_EQU_PREV         0
1580#define DATA_FROM_TABLE       4
1581
1582int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1583                                      u8 module_index,
1584                                      struct atom_mc_reg_table *reg_table)
1585{
1586        int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1587        u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1588        u32 i = 0, j;
1589        u16 data_offset, size;
1590        union vram_info *vram_info;
1591
1592        memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1593
1594        if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1595                                   &frev, &crev, &data_offset)) {
1596                vram_info = (union vram_info *)
1597                        (adev->mode_info.atom_context->bios + data_offset);
1598                switch (frev) {
1599                case 1:
1600                        DRM_ERROR("old table version %d, %d\n", frev, crev);
1601                        return -EINVAL;
1602                case 2:
1603                        switch (crev) {
1604                        case 1:
1605                                if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1606                                        ATOM_INIT_REG_BLOCK *reg_block =
1607                                                (ATOM_INIT_REG_BLOCK *)
1608                                                ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1609                                        ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1610                                                (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1611                                                ((u8 *)reg_block + (2 * sizeof(u16)) +
1612                                                 le16_to_cpu(reg_block->usRegIndexTblSize));
1613                                        ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1614                                        num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1615                                                           sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1616                                        if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1617                                                return -EINVAL;
1618                                        while (i < num_entries) {
1619                                                if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1620                                                        break;
1621                                                reg_table->mc_reg_address[i].s1 =
1622                                                        (u16)(le16_to_cpu(format->usRegIndex));
1623                                                reg_table->mc_reg_address[i].pre_reg_data =
1624                                                        (u8)(format->ucPreRegDataLength);
1625                                                i++;
1626                                                format = (ATOM_INIT_REG_INDEX_FORMAT *)
1627                                                        ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1628                                        }
1629                                        reg_table->last = i;
1630                                        while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1631                                               (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1632                                                t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1633                                                                >> MEM_ID_SHIFT);
1634                                                if (module_index == t_mem_id) {
1635                                                        reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1636                                                                (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1637                                                                      >> CLOCK_RANGE_SHIFT);
1638                                                        for (i = 0, j = 1; i < reg_table->last; i++) {
1639                                                                if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1640                                                                        reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1641                                                                                (u32)le32_to_cpu(*((u32 *)reg_data + j));
1642                                                                        j++;
1643                                                                } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1644                                                                        reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1645                                                                                reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1646                                                                }
1647                                                        }
1648                                                        num_ranges++;
1649                                                }
1650                                                reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1651                                                        ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1652                                        }
1653                                        if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1654                                                return -EINVAL;
1655                                        reg_table->num_entries = num_ranges;
1656                                } else
1657                                        return -EINVAL;
1658                                break;
1659                        default:
1660                                DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1661                                return -EINVAL;
1662                        }
1663                        break;
1664                default:
1665                        DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1666                        return -EINVAL;
1667                }
1668                return 0;
1669        }
1670        return -EINVAL;
1671}
1672
1673bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1674{
1675        int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1676        u8 frev, crev;
1677        u16 data_offset, size;
1678
1679        if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1680                                          &frev, &crev, &data_offset))
1681                return true;
1682
1683        return false;
1684}
1685
1686void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1687{
1688        uint32_t bios_6_scratch;
1689
1690        bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1691
1692        if (lock) {
1693                bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1694                bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1695        } else {
1696                bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1697                bios_6_scratch |= ATOM_S6_ACC_MODE;
1698        }
1699
1700        WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1701}
1702
1703static void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1704{
1705        uint32_t bios_2_scratch, bios_6_scratch;
1706
1707        adev->bios_scratch_reg_offset = mmBIOS_SCRATCH_0;
1708
1709        bios_2_scratch = RREG32(adev->bios_scratch_reg_offset + 2);
1710        bios_6_scratch = RREG32(adev->bios_scratch_reg_offset + 6);
1711
1712        /* let the bios control the backlight */
1713        bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1714
1715        /* tell the bios not to handle mode switching */
1716        bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1717
1718        /* clear the vbios dpms state */
1719        bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1720
1721        WREG32(adev->bios_scratch_reg_offset + 2, bios_2_scratch);
1722        WREG32(adev->bios_scratch_reg_offset + 6, bios_6_scratch);
1723}
1724
1725void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev,
1726                                              bool hung)
1727{
1728        u32 tmp = RREG32(adev->bios_scratch_reg_offset + 3);
1729
1730        if (hung)
1731                tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1732        else
1733                tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1734
1735        WREG32(adev->bios_scratch_reg_offset + 3, tmp);
1736}
1737
1738bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev)
1739{
1740        u32 tmp = RREG32(adev->bios_scratch_reg_offset + 7);
1741
1742        if (tmp & ATOM_S7_ASIC_INIT_COMPLETE_MASK)
1743                return false;
1744        else
1745                return true;
1746}
1747
1748/* Atom needs data in little endian format so swap as appropriate when copying
1749 * data to or from atom. Note that atom operates on dw units.
1750 *
1751 * Use to_le=true when sending data to atom and provide at least
1752 * ALIGN(num_bytes,4) bytes in the dst buffer.
1753 *
1754 * Use to_le=false when receiving data from atom and provide ALIGN(num_bytes,4)
1755 * byes in the src buffer.
1756 */
1757void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1758{
1759#ifdef __BIG_ENDIAN
1760        u32 src_tmp[5], dst_tmp[5];
1761        int i;
1762        u8 align_num_bytes = ALIGN(num_bytes, 4);
1763
1764        if (to_le) {
1765                memcpy(src_tmp, src, num_bytes);
1766                for (i = 0; i < align_num_bytes / 4; i++)
1767                        dst_tmp[i] = cpu_to_le32(src_tmp[i]);
1768                memcpy(dst, dst_tmp, align_num_bytes);
1769        } else {
1770                memcpy(src_tmp, src, align_num_bytes);
1771                for (i = 0; i < align_num_bytes / 4; i++)
1772                        dst_tmp[i] = le32_to_cpu(src_tmp[i]);
1773                memcpy(dst, dst_tmp, num_bytes);
1774        }
1775#else
1776        memcpy(dst, src, num_bytes);
1777#endif
1778}
1779
1780static int amdgpu_atombios_allocate_fb_scratch(struct amdgpu_device *adev)
1781{
1782        struct atom_context *ctx = adev->mode_info.atom_context;
1783        int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1784        uint16_t data_offset;
1785        int usage_bytes = 0;
1786        struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1787        u64 start_addr;
1788        u64 size;
1789
1790        if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1791                firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1792
1793                DRM_DEBUG("atom firmware requested %08x %dkb\n",
1794                          le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1795                          le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1796
1797                start_addr = firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware;
1798                size = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb;
1799
1800                if ((uint32_t)(start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
1801                        (uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
1802                        ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
1803                        /* Firmware request VRAM reservation for SR-IOV */
1804                        adev->fw_vram_usage.start_offset = (start_addr &
1805                                (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
1806                        adev->fw_vram_usage.size = size << 10;
1807                        /* Use the default scratch size */
1808                        usage_bytes = 0;
1809                } else {
1810                        usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1811                }
1812        }
1813        ctx->scratch_size_bytes = 0;
1814        if (usage_bytes == 0)
1815                usage_bytes = 20 * 1024;
1816        /* allocate some scratch memory */
1817        ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1818        if (!ctx->scratch)
1819                return -ENOMEM;
1820        ctx->scratch_size_bytes = usage_bytes;
1821        return 0;
1822}
1823
1824/* ATOM accessor methods */
1825/*
1826 * ATOM is an interpreted byte code stored in tables in the vbios.  The
1827 * driver registers callbacks to access registers and the interpreter
1828 * in the driver parses the tables and executes then to program specific
1829 * actions (set display modes, asic init, etc.).  See amdgpu_atombios.c,
1830 * atombios.h, and atom.c
1831 */
1832
1833/**
1834 * cail_pll_read - read PLL register
1835 *
1836 * @info: atom card_info pointer
1837 * @reg: PLL register offset
1838 *
1839 * Provides a PLL register accessor for the atom interpreter (r4xx+).
1840 * Returns the value of the PLL register.
1841 */
1842static uint32_t cail_pll_read(struct card_info *info, uint32_t reg)
1843{
1844        return 0;
1845}
1846
1847/**
1848 * cail_pll_write - write PLL register
1849 *
1850 * @info: atom card_info pointer
1851 * @reg: PLL register offset
1852 * @val: value to write to the pll register
1853 *
1854 * Provides a PLL register accessor for the atom interpreter (r4xx+).
1855 */
1856static void cail_pll_write(struct card_info *info, uint32_t reg, uint32_t val)
1857{
1858
1859}
1860
1861/**
1862 * cail_mc_read - read MC (Memory Controller) register
1863 *
1864 * @info: atom card_info pointer
1865 * @reg: MC register offset
1866 *
1867 * Provides an MC register accessor for the atom interpreter (r4xx+).
1868 * Returns the value of the MC register.
1869 */
1870static uint32_t cail_mc_read(struct card_info *info, uint32_t reg)
1871{
1872        return 0;
1873}
1874
1875/**
1876 * cail_mc_write - write MC (Memory Controller) register
1877 *
1878 * @info: atom card_info pointer
1879 * @reg: MC register offset
1880 * @val: value to write to the pll register
1881 *
1882 * Provides a MC register accessor for the atom interpreter (r4xx+).
1883 */
1884static void cail_mc_write(struct card_info *info, uint32_t reg, uint32_t val)
1885{
1886
1887}
1888
1889/**
1890 * cail_reg_write - write MMIO register
1891 *
1892 * @info: atom card_info pointer
1893 * @reg: MMIO register offset
1894 * @val: value to write to the pll register
1895 *
1896 * Provides a MMIO register accessor for the atom interpreter (r4xx+).
1897 */
1898static void cail_reg_write(struct card_info *info, uint32_t reg, uint32_t val)
1899{
1900        struct amdgpu_device *adev = info->dev->dev_private;
1901
1902        WREG32(reg, val);
1903}
1904
1905/**
1906 * cail_reg_read - read MMIO register
1907 *
1908 * @info: atom card_info pointer
1909 * @reg: MMIO register offset
1910 *
1911 * Provides an MMIO register accessor for the atom interpreter (r4xx+).
1912 * Returns the value of the MMIO register.
1913 */
1914static uint32_t cail_reg_read(struct card_info *info, uint32_t reg)
1915{
1916        struct amdgpu_device *adev = info->dev->dev_private;
1917        uint32_t r;
1918
1919        r = RREG32(reg);
1920        return r;
1921}
1922
1923/**
1924 * cail_ioreg_write - write IO register
1925 *
1926 * @info: atom card_info pointer
1927 * @reg: IO register offset
1928 * @val: value to write to the pll register
1929 *
1930 * Provides a IO register accessor for the atom interpreter (r4xx+).
1931 */
1932static void cail_ioreg_write(struct card_info *info, uint32_t reg, uint32_t val)
1933{
1934        struct amdgpu_device *adev = info->dev->dev_private;
1935
1936        WREG32_IO(reg, val);
1937}
1938
1939/**
1940 * cail_ioreg_read - read IO register
1941 *
1942 * @info: atom card_info pointer
1943 * @reg: IO register offset
1944 *
1945 * Provides an IO register accessor for the atom interpreter (r4xx+).
1946 * Returns the value of the IO register.
1947 */
1948static uint32_t cail_ioreg_read(struct card_info *info, uint32_t reg)
1949{
1950        struct amdgpu_device *adev = info->dev->dev_private;
1951        uint32_t r;
1952
1953        r = RREG32_IO(reg);
1954        return r;
1955}
1956
1957static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev,
1958                                                 struct device_attribute *attr,
1959                                                 char *buf)
1960{
1961        struct drm_device *ddev = dev_get_drvdata(dev);
1962        struct amdgpu_device *adev = ddev->dev_private;
1963        struct atom_context *ctx = adev->mode_info.atom_context;
1964
1965        return snprintf(buf, PAGE_SIZE, "%s\n", ctx->vbios_version);
1966}
1967
1968static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version,
1969                   NULL);
1970
1971/**
1972 * amdgpu_atombios_fini - free the driver info and callbacks for atombios
1973 *
1974 * @adev: amdgpu_device pointer
1975 *
1976 * Frees the driver info and register access callbacks for the ATOM
1977 * interpreter (r4xx+).
1978 * Called at driver shutdown.
1979 */
1980void amdgpu_atombios_fini(struct amdgpu_device *adev)
1981{
1982        if (adev->mode_info.atom_context) {
1983                kfree(adev->mode_info.atom_context->scratch);
1984                kfree(adev->mode_info.atom_context->iio);
1985        }
1986        kfree(adev->mode_info.atom_context);
1987        adev->mode_info.atom_context = NULL;
1988        kfree(adev->mode_info.atom_card_info);
1989        adev->mode_info.atom_card_info = NULL;
1990        device_remove_file(adev->dev, &dev_attr_vbios_version);
1991}
1992
1993/**
1994 * amdgpu_atombios_init - init the driver info and callbacks for atombios
1995 *
1996 * @adev: amdgpu_device pointer
1997 *
1998 * Initializes the driver info and register access callbacks for the
1999 * ATOM interpreter (r4xx+).
2000 * Returns 0 on sucess, -ENOMEM on failure.
2001 * Called at driver startup.
2002 */
2003int amdgpu_atombios_init(struct amdgpu_device *adev)
2004{
2005        struct card_info *atom_card_info =
2006            kzalloc(sizeof(struct card_info), GFP_KERNEL);
2007        int ret;
2008
2009        if (!atom_card_info)
2010                return -ENOMEM;
2011
2012        adev->mode_info.atom_card_info = atom_card_info;
2013        atom_card_info->dev = adev->ddev;
2014        atom_card_info->reg_read = cail_reg_read;
2015        atom_card_info->reg_write = cail_reg_write;
2016        /* needed for iio ops */
2017        if (adev->rio_mem) {
2018                atom_card_info->ioreg_read = cail_ioreg_read;
2019                atom_card_info->ioreg_write = cail_ioreg_write;
2020        } else {
2021                DRM_DEBUG("PCI I/O BAR is not found. Using MMIO to access ATOM BIOS\n");
2022                atom_card_info->ioreg_read = cail_reg_read;
2023                atom_card_info->ioreg_write = cail_reg_write;
2024        }
2025        atom_card_info->mc_read = cail_mc_read;
2026        atom_card_info->mc_write = cail_mc_write;
2027        atom_card_info->pll_read = cail_pll_read;
2028        atom_card_info->pll_write = cail_pll_write;
2029
2030        adev->mode_info.atom_context = amdgpu_atom_parse(atom_card_info, adev->bios);
2031        if (!adev->mode_info.atom_context) {
2032                amdgpu_atombios_fini(adev);
2033                return -ENOMEM;
2034        }
2035
2036        mutex_init(&adev->mode_info.atom_context->mutex);
2037        if (adev->is_atom_fw) {
2038                amdgpu_atomfirmware_scratch_regs_init(adev);
2039                amdgpu_atomfirmware_allocate_fb_scratch(adev);
2040        } else {
2041                amdgpu_atombios_scratch_regs_init(adev);
2042                amdgpu_atombios_allocate_fb_scratch(adev);
2043        }
2044
2045        ret = device_create_file(adev->dev, &dev_attr_vbios_version);
2046        if (ret) {
2047                DRM_ERROR("Failed to create device file for VBIOS version\n");
2048                return ret;
2049        }
2050
2051        return 0;
2052}
2053
2054