Pileus Git - ~andy/linux/blob - drivers/gpu/drm/radeon/atombios_crtc.c

   1 /*
   2  * Copyright 2007-8 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: Dave Airlie
  24  *          Alex Deucher
  25  */
  26 #include <drm/drmP.h>
  27 #include <drm/drm_crtc_helper.h>
  28 #include <drm/radeon_drm.h>
  29 #include "radeon_fixed.h"
  30 #include "radeon.h"
  31 #include "atom.h"
  32 #include "atom-bits.h"
  33
  34 static void atombios_overscan_setup(struct drm_crtc *crtc,
  35                                     struct drm_display_mode *mode,
  36                                     struct drm_display_mode *adjusted_mode)
  37 {
  38         struct drm_device *dev = crtc->dev;
  39         struct radeon_device *rdev = dev->dev_private;
  40         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  41         SET_CRTC_OVERSCAN_PS_ALLOCATION args;
  42         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
  43         int a1, a2;
  44
  45         memset(&args, 0, sizeof(args));
  46
  47         args.usOverscanRight = 0;
  48         args.usOverscanLeft = 0;
  49         args.usOverscanBottom = 0;
  50         args.usOverscanTop = 0;
  51         args.ucCRTC = radeon_crtc->crtc_id;
  52
  53         switch (radeon_crtc->rmx_type) {
  54         case RMX_CENTER:
  55                 args.usOverscanTop = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
  56                 args.usOverscanBottom = (adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2;
  57                 args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
  58                 args.usOverscanRight = (adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2;
  59                 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
  60                 break;
  61         case RMX_ASPECT:
  62                 a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
  63                 a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
  64
  65                 if (a1 > a2) {
  66                         args.usOverscanLeft = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
  67                         args.usOverscanRight = (adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2;
  68                 } else if (a2 > a1) {
  69                         args.usOverscanLeft = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
  70                         args.usOverscanRight = (adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2;
  71                 }
  72                 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
  73                 break;
  74         case RMX_FULL:
  75         default:
  76                 args.usOverscanRight = 0;
  77                 args.usOverscanLeft = 0;
  78                 args.usOverscanBottom = 0;
  79                 args.usOverscanTop = 0;
  80                 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
  81                 break;
  82         }
  83 }
  84
  85 static void atombios_scaler_setup(struct drm_crtc *crtc)
  86 {
  87         struct drm_device *dev = crtc->dev;
  88         struct radeon_device *rdev = dev->dev_private;
  89         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  90         ENABLE_SCALER_PS_ALLOCATION args;
  91         int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
  92
  93         /* fixme - fill in enc_priv for atom dac */
  94         enum radeon_tv_std tv_std = TV_STD_NTSC;
  95         bool is_tv = false, is_cv = false;
  96         struct drm_encoder *encoder;
  97
  98         if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
  99                 return;
 100
 101         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 102                 /* find tv std */
 103                 if (encoder->crtc == crtc) {
 104                         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 105                         if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
 106                                 struct radeon_encoder_atom_dac *tv_dac = radeon_encoder->enc_priv;
 107                                 tv_std = tv_dac->tv_std;
 108                                 is_tv = true;
 109                         }
 110                 }
 111         }
 112
 113         memset(&args, 0, sizeof(args));
 114
 115         args.ucScaler = radeon_crtc->crtc_id;
 116
 117         if (is_tv) {
 118                 switch (tv_std) {
 119                 case TV_STD_NTSC:
 120                 default:
 121                         args.ucTVStandard = ATOM_TV_NTSC;
 122                         break;
 123                 case TV_STD_PAL:
 124                         args.ucTVStandard = ATOM_TV_PAL;
 125                         break;
 126                 case TV_STD_PAL_M:
 127                         args.ucTVStandard = ATOM_TV_PALM;
 128                         break;
 129                 case TV_STD_PAL_60:
 130                         args.ucTVStandard = ATOM_TV_PAL60;
 131                         break;
 132                 case TV_STD_NTSC_J:
 133                         args.ucTVStandard = ATOM_TV_NTSCJ;
 134                         break;
 135                 case TV_STD_SCART_PAL:
 136                         args.ucTVStandard = ATOM_TV_PAL; /* ??? */
 137                         break;
 138                 case TV_STD_SECAM:
 139                         args.ucTVStandard = ATOM_TV_SECAM;
 140                         break;
 141                 case TV_STD_PAL_CN:
 142                         args.ucTVStandard = ATOM_TV_PALCN;
 143                         break;
 144                 }
 145                 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
 146         } else if (is_cv) {
 147                 args.ucTVStandard = ATOM_TV_CV;
 148                 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
 149         } else {
 150                 switch (radeon_crtc->rmx_type) {
 151                 case RMX_FULL:
 152                         args.ucEnable = ATOM_SCALER_EXPANSION;
 153                         break;
 154                 case RMX_CENTER:
 155                         args.ucEnable = ATOM_SCALER_CENTER;
 156                         break;
 157                 case RMX_ASPECT:
 158                         args.ucEnable = ATOM_SCALER_EXPANSION;
 159                         break;
 160                 default:
 161                         if (ASIC_IS_AVIVO(rdev))
 162                                 args.ucEnable = ATOM_SCALER_DISABLE;
 163                         else
 164                                 args.ucEnable = ATOM_SCALER_CENTER;
 165                         break;
 166                 }
 167         }
 168         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 169         if ((is_tv || is_cv)
 170             && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_R580) {
 171                 atom_rv515_force_tv_scaler(rdev, radeon_crtc);
 172         }
 173 }
 174
 175 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
 176 {
 177         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 178         struct drm_device *dev = crtc->dev;
 179         struct radeon_device *rdev = dev->dev_private;
 180         int index =
 181             GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters);
 182         ENABLE_CRTC_PS_ALLOCATION args;
 183
 184         memset(&args, 0, sizeof(args));
 185
 186         args.ucCRTC = radeon_crtc->crtc_id;
 187         args.ucEnable = lock;
 188
 189         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 190 }
 191
 192 static void atombios_enable_crtc(struct drm_crtc *crtc, int state)
 193 {
 194         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 195         struct drm_device *dev = crtc->dev;
 196         struct radeon_device *rdev = dev->dev_private;
 197         int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC);
 198         ENABLE_CRTC_PS_ALLOCATION args;
 199
 200         memset(&args, 0, sizeof(args));
 201
 202         args.ucCRTC = radeon_crtc->crtc_id;
 203         args.ucEnable = state;
 204
 205         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 206 }
 207
 208 static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
 209 {
 210         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 211         struct drm_device *dev = crtc->dev;
 212         struct radeon_device *rdev = dev->dev_private;
 213         int index = GetIndexIntoMasterTable(COMMAND, EnableCRTCMemReq);
 214         ENABLE_CRTC_PS_ALLOCATION args;
 215
 216         memset(&args, 0, sizeof(args));
 217
 218         args.ucCRTC = radeon_crtc->crtc_id;
 219         args.ucEnable = state;
 220
 221         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 222 }
 223
 224 static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
 225 {
 226         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 227         struct drm_device *dev = crtc->dev;
 228         struct radeon_device *rdev = dev->dev_private;
 229         int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
 230         BLANK_CRTC_PS_ALLOCATION args;
 231
 232         memset(&args, 0, sizeof(args));
 233
 234         args.ucCRTC = radeon_crtc->crtc_id;
 235         args.ucBlanking = state;
 236
 237         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 238 }
 239
 240 void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 241 {
 242         struct drm_device *dev = crtc->dev;
 243         struct radeon_device *rdev = dev->dev_private;
 244         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 245
 246         switch (mode) {
 247         case DRM_MODE_DPMS_ON:
 248                 atombios_enable_crtc(crtc, 1);
 249                 if (ASIC_IS_DCE3(rdev))
 250                         atombios_enable_crtc_memreq(crtc, 1);
 251                 atombios_blank_crtc(crtc, 0);
 252                 drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
 253                 radeon_crtc_load_lut(crtc);
 254                 break;
 255         case DRM_MODE_DPMS_STANDBY:
 256         case DRM_MODE_DPMS_SUSPEND:
 257         case DRM_MODE_DPMS_OFF:
 258                 drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id);
 259                 atombios_blank_crtc(crtc, 1);
 260                 if (ASIC_IS_DCE3(rdev))
 261                         atombios_enable_crtc_memreq(crtc, 0);
 262                 atombios_enable_crtc(crtc, 0);
 263                 break;
 264         }
 265 }
 266
 267 static void
 268 atombios_set_crtc_dtd_timing(struct drm_crtc *crtc,
 269                              struct drm_display_mode *mode)
 270 {
 271         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 272         struct drm_device *dev = crtc->dev;
 273         struct radeon_device *rdev = dev->dev_private;
 274         SET_CRTC_USING_DTD_TIMING_PARAMETERS args;
 275         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming);
 276         u16 misc = 0;
 277
 278         memset(&args, 0, sizeof(args));
 279         args.usH_Size = cpu_to_le16(mode->crtc_hdisplay);
 280         args.usH_Blanking_Time =
 281                 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay);
 282         args.usV_Size = cpu_to_le16(mode->crtc_vdisplay);
 283         args.usV_Blanking_Time =
 284             cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay);
 285         args.usH_SyncOffset =
 286                 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay);
 287         args.usH_SyncWidth =
 288                 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
 289         args.usV_SyncOffset =
 290                 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay);
 291         args.usV_SyncWidth =
 292                 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
 293         /*args.ucH_Border = mode->hborder;*/
 294         /*args.ucV_Border = mode->vborder;*/
 295
 296         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 297                 misc |= ATOM_VSYNC_POLARITY;
 298         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 299                 misc |= ATOM_HSYNC_POLARITY;
 300         if (mode->flags & DRM_MODE_FLAG_CSYNC)
 301                 misc |= ATOM_COMPOSITESYNC;
 302         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 303                 misc |= ATOM_INTERLACE;
 304         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 305                 misc |= ATOM_DOUBLE_CLOCK_MODE;
 306
 307         args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 308         args.ucCRTC = radeon_crtc->crtc_id;
 309
 310         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 311 }
 312
 313 static void atombios_crtc_set_timing(struct drm_crtc *crtc,
 314                                      struct drm_display_mode *mode)
 315 {
 316         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 317         struct drm_device *dev = crtc->dev;
 318         struct radeon_device *rdev = dev->dev_private;
 319         SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION args;
 320         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_Timing);
 321         u16 misc = 0;
 322
 323         memset(&args, 0, sizeof(args));
 324         args.usH_Total = cpu_to_le16(mode->crtc_htotal);
 325         args.usH_Disp = cpu_to_le16(mode->crtc_hdisplay);
 326         args.usH_SyncStart = cpu_to_le16(mode->crtc_hsync_start);
 327         args.usH_SyncWidth =
 328                 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
 329         args.usV_Total = cpu_to_le16(mode->crtc_vtotal);
 330         args.usV_Disp = cpu_to_le16(mode->crtc_vdisplay);
 331         args.usV_SyncStart = cpu_to_le16(mode->crtc_vsync_start);
 332         args.usV_SyncWidth =
 333                 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
 334
 335         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 336                 misc |= ATOM_VSYNC_POLARITY;
 337         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 338                 misc |= ATOM_HSYNC_POLARITY;
 339         if (mode->flags & DRM_MODE_FLAG_CSYNC)
 340                 misc |= ATOM_COMPOSITESYNC;
 341         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 342                 misc |= ATOM_INTERLACE;
 343         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 344                 misc |= ATOM_DOUBLE_CLOCK_MODE;
 345
 346         args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 347         args.ucCRTC = radeon_crtc->crtc_id;
 348
 349         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 350 }
 351
 352 static void atombios_set_ss(struct drm_crtc *crtc, int enable)
 353 {
 354         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 355         struct drm_device *dev = crtc->dev;
 356         struct radeon_device *rdev = dev->dev_private;
 357         struct drm_encoder *encoder = NULL;
 358         struct radeon_encoder *radeon_encoder = NULL;
 359         struct radeon_encoder_atom_dig *dig = NULL;
 360         int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
 361         ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION args;
 362         ENABLE_LVDS_SS_PARAMETERS legacy_args;
 363         uint16_t percentage = 0;
 364         uint8_t type = 0, step = 0, delay = 0, range = 0;
 365
 366         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 367                 if (encoder->crtc == crtc) {
 368                         radeon_encoder = to_radeon_encoder(encoder);
 369                         /* only enable spread spectrum on LVDS */
 370                         if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 371                                 dig = radeon_encoder->enc_priv;
 372                                 if (dig && dig->ss) {
 373                                         percentage = dig->ss->percentage;
 374                                         type = dig->ss->type;
 375                                         step = dig->ss->step;
 376                                         delay = dig->ss->delay;
 377                                         range = dig->ss->range;
 378                                 } else if (enable)
 379                                         return;
 380                         } else if (enable)
 381                                 return;
 382                         break;
 383                 }
 384         }
 385
 386         if (!radeon_encoder)
 387                 return;
 388
 389         if (ASIC_IS_AVIVO(rdev)) {
 390                 memset(&args, 0, sizeof(args));
 391                 args.usSpreadSpectrumPercentage = cpu_to_le16(percentage);
 392                 args.ucSpreadSpectrumType = type;
 393                 args.ucSpreadSpectrumStep = step;
 394                 args.ucSpreadSpectrumDelay = delay;
 395                 args.ucSpreadSpectrumRange = range;
 396                 args.ucPpll = radeon_crtc->crtc_id ? ATOM_PPLL2 : ATOM_PPLL1;
 397                 args.ucEnable = enable;
 398                 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 399         } else {
 400                 memset(&legacy_args, 0, sizeof(legacy_args));
 401                 legacy_args.usSpreadSpectrumPercentage = cpu_to_le16(percentage);
 402                 legacy_args.ucSpreadSpectrumType = type;
 403                 legacy_args.ucSpreadSpectrumStepSize_Delay = (step & 3) << 2;
 404                 legacy_args.ucSpreadSpectrumStepSize_Delay |= (delay & 7) << 4;
 405                 legacy_args.ucEnable = enable;
 406                 atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&legacy_args);
 407         }
 408 }
 409
 410 union adjust_pixel_clock {
 411         ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
 412 };
 413
 414 static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 415                                struct drm_display_mode *mode,
 416                                struct radeon_pll *pll)
 417 {
 418         struct drm_device *dev = crtc->dev;
 419         struct radeon_device *rdev = dev->dev_private;
 420         struct drm_encoder *encoder = NULL;
 421         struct radeon_encoder *radeon_encoder = NULL;
 422         u32 adjusted_clock = mode->clock;
 423
 424         /* reset the pll flags */
 425         pll->flags = 0;
 426
 427         /* select the PLL algo */
 428         if (ASIC_IS_AVIVO(rdev)) {
 429                 if (radeon_new_pll)
 430                         pll->algo = PLL_ALGO_AVIVO;
 431                 else
 432                         pll->algo = PLL_ALGO_LEGACY;
 433         } else
 434                 pll->algo = PLL_ALGO_LEGACY;
 435
 436         if (ASIC_IS_AVIVO(rdev)) {
 437                 if ((rdev->family == CHIP_RS600) ||
 438                     (rdev->family == CHIP_RS690) ||
 439                     (rdev->family == CHIP_RS740))
 440                         pll->flags |= (RADEON_PLL_USE_FRAC_FB_DIV |
 441                                        RADEON_PLL_PREFER_CLOSEST_LOWER);
 442
 443                 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)        /* range limits??? */
 444                         pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
 445                 else
 446                         pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 447         } else {
 448                 pll->flags |= RADEON_PLL_LEGACY;
 449
 450                 if (mode->clock > 200000)       /* range limits??? */
 451                         pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
 452                 else
 453                         pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 454
 455         }
 456
 457         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 458                 if (encoder->crtc == crtc) {
 459                         radeon_encoder = to_radeon_encoder(encoder);
 460                         if (ASIC_IS_AVIVO(rdev)) {
 461                                 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
 462                                 if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
 463                                         adjusted_clock = mode->clock * 2;
 464                                 /* LVDS PLL quirks */
 465                                 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
 466                                         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 467                                         pll->algo = dig->pll_algo;
 468                                 }
 469                         } else {
 470                                 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
 471                                         pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;
 472                                 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS)
 473                                         pll->flags |= RADEON_PLL_USE_REF_DIV;
 474                         }
 475                         break;
 476                 }
 477         }
 478
 479         /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock
 480          * accordingly based on the encoder/transmitter to work around
 481          * special hw requirements.
 482          */
 483         if (ASIC_IS_DCE3(rdev)) {
 484                 union adjust_pixel_clock args;
 485                 struct radeon_encoder_atom_dig *dig;
 486                 u8 frev, crev;
 487                 int index;
 488
 489                 if (!radeon_encoder->enc_priv)
 490                         return adjusted_clock;
 491                 dig = radeon_encoder->enc_priv;
 492
 493                 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
 494                 atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
 495                                       &crev);
 496
 497                 memset(&args, 0, sizeof(args));
 498
 499                 switch (frev) {
 500                 case 1:
 501                         switch (crev) {
 502                         case 1:
 503                         case 2:
 504                                 args.v1.usPixelClock = cpu_to_le16(mode->clock / 10);
 505                                 args.v1.ucTransmitterID = radeon_encoder->encoder_id;
 506                                 args.v1.ucEncodeMode = atombios_get_encoder_mode(encoder);
 507
 508                                 atom_execute_table(rdev->mode_info.atom_context,
 509                                                    index, (uint32_t *)&args);
 510                                 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10;
 511                                 break;
 512                         default:
 513                                 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 514                                 return adjusted_clock;
 515                         }
 516                         break;
 517                 default:
 518                         DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 519                         return adjusted_clock;
 520                 }
 521         }
 522         return adjusted_clock;
 523 }
 524
 525 union set_pixel_clock {
 526         SET_PIXEL_CLOCK_PS_ALLOCATION base;
 527         PIXEL_CLOCK_PARAMETERS v1;
 528         PIXEL_CLOCK_PARAMETERS_V2 v2;
 529         PIXEL_CLOCK_PARAMETERS_V3 v3;
 530 };
 531
 532 void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
 533 {
 534         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 535         struct drm_device *dev = crtc->dev;
 536         struct radeon_device *rdev = dev->dev_private;
 537         struct drm_encoder *encoder = NULL;
 538         struct radeon_encoder *radeon_encoder = NULL;
 539         u8 frev, crev;
 540         int index;
 541         union set_pixel_clock args;
 542         u32 pll_clock = mode->clock;
 543         u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
 544         struct radeon_pll *pll;
 545         u32 adjusted_clock;
 546
 547         memset(&args, 0, sizeof(args));
 548
 549         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 550                 if (encoder->crtc == crtc) {
 551                         radeon_encoder = to_radeon_encoder(encoder);
 552                         break;
 553                 }
 554         }
 555
 556         if (!radeon_encoder)
 557                 return;
 558
 559         if (radeon_crtc->crtc_id == 0)
 560                 pll = &rdev->clock.p1pll;
 561         else
 562                 pll = &rdev->clock.p2pll;
 563
 564         /* adjust pixel clock as needed */
 565         adjusted_clock = atombios_adjust_pll(crtc, mode, pll);
 566
 567         radeon_compute_pll(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
 568                            &ref_div, &post_div);
 569
 570         index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
 571         atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
 572                               &crev);
 573
 574         switch (frev) {
 575         case 1:
 576                 switch (crev) {
 577                 case 1:
 578                         args.v1.usPixelClock = cpu_to_le16(mode->clock / 10);
 579                         args.v1.usRefDiv = cpu_to_le16(ref_div);
 580                         args.v1.usFbDiv = cpu_to_le16(fb_div);
 581                         args.v1.ucFracFbDiv = frac_fb_div;
 582                         args.v1.ucPostDiv = post_div;
 583                         args.v1.ucPpll =
 584                             radeon_crtc->crtc_id ? ATOM_PPLL2 : ATOM_PPLL1;
 585                         args.v1.ucCRTC = radeon_crtc->crtc_id;
 586                         args.v1.ucRefDivSrc = 1;
 587                         break;
 588                 case 2:
 589                         args.v2.usPixelClock = cpu_to_le16(mode->clock / 10);
 590                         args.v2.usRefDiv = cpu_to_le16(ref_div);
 591                         args.v2.usFbDiv = cpu_to_le16(fb_div);
 592                         args.v2.ucFracFbDiv = frac_fb_div;
 593                         args.v2.ucPostDiv = post_div;
 594                         args.v2.ucPpll =
 595                             radeon_crtc->crtc_id ? ATOM_PPLL2 : ATOM_PPLL1;
 596                         args.v2.ucCRTC = radeon_crtc->crtc_id;
 597                         args.v2.ucRefDivSrc = 1;
 598                         break;
 599                 case 3:
 600                         args.v3.usPixelClock = cpu_to_le16(mode->clock / 10);
 601                         args.v3.usRefDiv = cpu_to_le16(ref_div);
 602                         args.v3.usFbDiv = cpu_to_le16(fb_div);
 603                         args.v3.ucFracFbDiv = frac_fb_div;
 604                         args.v3.ucPostDiv = post_div;
 605                         args.v3.ucPpll =
 606                             radeon_crtc->crtc_id ? ATOM_PPLL2 : ATOM_PPLL1;
 607                         args.v3.ucMiscInfo = (radeon_crtc->crtc_id << 2);
 608                         args.v3.ucTransmitterId = radeon_encoder->encoder_id;
 609                         args.v3.ucEncoderMode =
 610                             atombios_get_encoder_mode(encoder);
 611                         break;
 612                 default:
 613                         DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 614                         return;
 615                 }
 616                 break;
 617         default:
 618                 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 619                 return;
 620         }
 621
 622         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 623 }
 624
 625 static int avivo_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 626                                struct drm_framebuffer *old_fb)
 627 {
 628         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 629         struct drm_device *dev = crtc->dev;
 630         struct radeon_device *rdev = dev->dev_private;
 631         struct radeon_framebuffer *radeon_fb;
 632         struct drm_gem_object *obj;
 633         struct radeon_bo *rbo;
 634         uint64_t fb_location;
 635         uint32_t fb_format, fb_pitch_pixels, tiling_flags;
 636         int r;
 637
 638         /* no fb bound */
 639         if (!crtc->fb) {
 640                 DRM_DEBUG("No FB bound\n");
 641                 return 0;
 642         }
 643
 644         radeon_fb = to_radeon_framebuffer(crtc->fb);
 645
 646         /* Pin framebuffer & get tilling informations */
 647         obj = radeon_fb->obj;
 648         rbo = obj->driver_private;
 649         r = radeon_bo_reserve(rbo, false);
 650         if (unlikely(r != 0))
 651                 return r;
 652         r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
 653         if (unlikely(r != 0)) {
 654                 radeon_bo_unreserve(rbo);
 655                 return -EINVAL;
 656         }
 657         radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
 658         radeon_bo_unreserve(rbo);
 659
 660         switch (crtc->fb->bits_per_pixel) {
 661         case 8:
 662                 fb_format =
 663                     AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
 664                     AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
 665                 break;
 666         case 15:
 667                 fb_format =
 668                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
 669                     AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
 670                 break;
 671         case 16:
 672                 fb_format =
 673                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
 674                     AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
 675                 break;
 676         case 24:
 677         case 32:
 678                 fb_format =
 679                     AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
 680                     AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
 681                 break;
 682         default:
 683                 DRM_ERROR("Unsupported screen depth %d\n",
 684                           crtc->fb->bits_per_pixel);
 685                 return -EINVAL;
 686         }
 687
 688         if (tiling_flags & RADEON_TILING_MACRO)
 689                 fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
 690
 691         if (tiling_flags & RADEON_TILING_MICRO)
 692                 fb_format |= AVIVO_D1GRPH_TILED;
 693
 694         if (radeon_crtc->crtc_id == 0)
 695                 WREG32(AVIVO_D1VGA_CONTROL, 0);
 696         else
 697                 WREG32(AVIVO_D2VGA_CONTROL, 0);
 698
 699         if (rdev->family >= CHIP_RV770) {
 700                 if (radeon_crtc->crtc_id) {
 701                         WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, 0);
 702                         WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, 0);
 703                 } else {
 704                         WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, 0);
 705                         WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, 0);
 706                 }
 707         }
 708         WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
 709                (u32) fb_location);
 710         WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
 711                radeon_crtc->crtc_offset, (u32) fb_location);
 712         WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
 713
 714         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
 715         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
 716         WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
 717         WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
 718         WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, crtc->fb->width);
 719         WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, crtc->fb->height);
 720
 721         fb_pitch_pixels = crtc->fb->pitch / (crtc->fb->bits_per_pixel / 8);
 722         WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
 723         WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
 724
 725         WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
 726                crtc->mode.vdisplay);
 727         x &= ~3;
 728         y &= ~1;
 729         WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
 730                (x << 16) | y);
 731         WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
 732                (crtc->mode.hdisplay << 16) | crtc->mode.vdisplay);
 733
 734         if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
 735                 WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
 736                        AVIVO_D1MODE_INTERLEAVE_EN);
 737         else
 738                 WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
 739
 740         if (old_fb && old_fb != crtc->fb) {
 741                 radeon_fb = to_radeon_framebuffer(old_fb);
 742                 rbo = radeon_fb->obj->driver_private;
 743                 r = radeon_bo_reserve(rbo, false);
 744                 if (unlikely(r != 0))
 745                         return r;
 746                 radeon_bo_unpin(rbo);
 747                 radeon_bo_unreserve(rbo);
 748         }
 749
 750         /* Bytes per pixel may have changed */
 751         radeon_bandwidth_update(rdev);
 752
 753         return 0;
 754 }
 755
 756 int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
 757                            struct drm_framebuffer *old_fb)
 758 {
 759         struct drm_device *dev = crtc->dev;
 760         struct radeon_device *rdev = dev->dev_private;
 761
 762         if (ASIC_IS_AVIVO(rdev))
 763                 return avivo_crtc_set_base(crtc, x, y, old_fb);
 764         else
 765                 return radeon_crtc_set_base(crtc, x, y, old_fb);
 766 }
 767
 768 /* properly set additional regs when using atombios */
 769 static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
 770 {
 771         struct drm_device *dev = crtc->dev;
 772         struct radeon_device *rdev = dev->dev_private;
 773         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 774         u32 disp_merge_cntl;
 775
 776         switch (radeon_crtc->crtc_id) {
 777         case 0:
 778                 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
 779                 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
 780                 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
 781                 break;
 782         case 1:
 783                 disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
 784                 disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
 785                 WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
 786                 WREG32(RADEON_FP_H2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
 787                 WREG32(RADEON_FP_V2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
 788                 break;
 789         }
 790 }
 791
 792 int atombios_crtc_mode_set(struct drm_crtc *crtc,
 793                            struct drm_display_mode *mode,
 794                            struct drm_display_mode *adjusted_mode,
 795                            int x, int y, struct drm_framebuffer *old_fb)
 796 {
 797         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 798         struct drm_device *dev = crtc->dev;
 799         struct radeon_device *rdev = dev->dev_private;
 800
 801         /* TODO color tiling */
 802
 803         atombios_set_ss(crtc, 0);
 804         atombios_crtc_set_pll(crtc, adjusted_mode);
 805         atombios_set_ss(crtc, 1);
 806         atombios_crtc_set_timing(crtc, adjusted_mode);
 807
 808         if (ASIC_IS_AVIVO(rdev))
 809                 atombios_crtc_set_base(crtc, x, y, old_fb);
 810         else {
 811                 if (radeon_crtc->crtc_id == 0)
 812                         atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
 813                 atombios_crtc_set_base(crtc, x, y, old_fb);
 814                 radeon_legacy_atom_fixup(crtc);
 815         }
 816         atombios_overscan_setup(crtc, mode, adjusted_mode);
 817         atombios_scaler_setup(crtc);
 818         return 0;
 819 }
 820
 821 static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
 822                                      struct drm_display_mode *mode,
 823                                      struct drm_display_mode *adjusted_mode)
 824 {
 825         if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
 826                 return false;
 827         return true;
 828 }
 829
 830 static void atombios_crtc_prepare(struct drm_crtc *crtc)
 831 {
 832         atombios_lock_crtc(crtc, 1);
 833         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 834 }
 835
 836 static void atombios_crtc_commit(struct drm_crtc *crtc)
 837 {
 838         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 839         atombios_lock_crtc(crtc, 0);
 840 }
 841
 842 static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
 843         .dpms = atombios_crtc_dpms,
 844         .mode_fixup = atombios_crtc_mode_fixup,
 845         .mode_set = atombios_crtc_mode_set,
 846         .mode_set_base = atombios_crtc_set_base,
 847         .prepare = atombios_crtc_prepare,
 848         .commit = atombios_crtc_commit,
 849         .load_lut = radeon_crtc_load_lut,
 850 };
 851
 852 void radeon_atombios_init_crtc(struct drm_device *dev,
 853                                struct radeon_crtc *radeon_crtc)
 854 {
 855         if (radeon_crtc->crtc_id == 1)
 856                 radeon_crtc->crtc_offset =
 857                     AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
 858         drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
 859 }