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
  27 #include <drm/drm_crtc_helper.h>
  28 #include <drm/drm_fb_helper.h>
  29 #include <drm/drm_fixed.h>
  30 #include <drm/drm_fourcc.h>
  31 #include <drm/drm_vblank.h>
  32 #include <drm/radeon_drm.h>
  33
  34 #include "radeon.h"
  35 #include "atom.h"
  36 #include "atom-bits.h"
  37
  38 static void atombios_overscan_setup(struct drm_crtc *crtc,
  39                                     struct drm_display_mode *mode,
  40                                     struct drm_display_mode *adjusted_mode)
  41 {
  42         struct drm_device *dev = crtc->dev;
  43         struct radeon_device *rdev = dev->dev_private;
  44         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  45         SET_CRTC_OVERSCAN_PS_ALLOCATION args;
  46         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_OverScan);
  47         int a1, a2;
  48
  49         memset(&args, 0, sizeof(args));
  50
  51         args.ucCRTC = radeon_crtc->crtc_id;
  52
  53         switch (radeon_crtc->rmx_type) {
  54         case RMX_CENTER:
  55                 args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
  56                 args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - mode->crtc_vdisplay) / 2);
  57                 args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
  58                 args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - mode->crtc_hdisplay) / 2);
  59                 break;
  60         case RMX_ASPECT:
  61                 a1 = mode->crtc_vdisplay * adjusted_mode->crtc_hdisplay;
  62                 a2 = adjusted_mode->crtc_vdisplay * mode->crtc_hdisplay;
  63
  64                 if (a1 > a2) {
  65                         args.usOverscanLeft = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
  66                         args.usOverscanRight = cpu_to_le16((adjusted_mode->crtc_hdisplay - (a2 / mode->crtc_vdisplay)) / 2);
  67                 } else if (a2 > a1) {
  68                         args.usOverscanTop = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
  69                         args.usOverscanBottom = cpu_to_le16((adjusted_mode->crtc_vdisplay - (a1 / mode->crtc_hdisplay)) / 2);
  70                 }
  71                 break;
  72         case RMX_FULL:
  73         default:
  74                 args.usOverscanRight = cpu_to_le16(radeon_crtc->h_border);
  75                 args.usOverscanLeft = cpu_to_le16(radeon_crtc->h_border);
  76                 args.usOverscanBottom = cpu_to_le16(radeon_crtc->v_border);
  77                 args.usOverscanTop = cpu_to_le16(radeon_crtc->v_border);
  78                 break;
  79         }
  80         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
  81 }
  82
  83 static void atombios_scaler_setup(struct drm_crtc *crtc)
  84 {
  85         struct drm_device *dev = crtc->dev;
  86         struct radeon_device *rdev = dev->dev_private;
  87         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  88         ENABLE_SCALER_PS_ALLOCATION args;
  89         int index = GetIndexIntoMasterTable(COMMAND, EnableScaler);
  90         struct radeon_encoder *radeon_encoder =
  91                 to_radeon_encoder(radeon_crtc->encoder);
  92         /* fixme - fill in enc_priv for atom dac */
  93         enum radeon_tv_std tv_std = TV_STD_NTSC;
  94         bool is_tv = false, is_cv = false;
  95
  96         if (!ASIC_IS_AVIVO(rdev) && radeon_crtc->crtc_id)
  97                 return;
  98
  99         if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
 100                 struct radeon_encoder_atom_dac *tv_dac = radeon_encoder->enc_priv;
 101                 tv_std = tv_dac->tv_std;
 102                 is_tv = true;
 103         }
 104
 105         memset(&args, 0, sizeof(args));
 106
 107         args.ucScaler = radeon_crtc->crtc_id;
 108
 109         if (is_tv) {
 110                 switch (tv_std) {
 111                 case TV_STD_NTSC:
 112                 default:
 113                         args.ucTVStandard = ATOM_TV_NTSC;
 114                         break;
 115                 case TV_STD_PAL:
 116                         args.ucTVStandard = ATOM_TV_PAL;
 117                         break;
 118                 case TV_STD_PAL_M:
 119                         args.ucTVStandard = ATOM_TV_PALM;
 120                         break;
 121                 case TV_STD_PAL_60:
 122                         args.ucTVStandard = ATOM_TV_PAL60;
 123                         break;
 124                 case TV_STD_NTSC_J:
 125                         args.ucTVStandard = ATOM_TV_NTSCJ;
 126                         break;
 127                 case TV_STD_SCART_PAL:
 128                         args.ucTVStandard = ATOM_TV_PAL; /* ??? */
 129                         break;
 130                 case TV_STD_SECAM:
 131                         args.ucTVStandard = ATOM_TV_SECAM;
 132                         break;
 133                 case TV_STD_PAL_CN:
 134                         args.ucTVStandard = ATOM_TV_PALCN;
 135                         break;
 136                 }
 137                 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
 138         } else if (is_cv) {
 139                 args.ucTVStandard = ATOM_TV_CV;
 140                 args.ucEnable = SCALER_ENABLE_MULTITAP_MODE;
 141         } else {
 142                 switch (radeon_crtc->rmx_type) {
 143                 case RMX_FULL:
 144                         args.ucEnable = ATOM_SCALER_EXPANSION;
 145                         break;
 146                 case RMX_CENTER:
 147                         args.ucEnable = ATOM_SCALER_CENTER;
 148                         break;
 149                 case RMX_ASPECT:
 150                         args.ucEnable = ATOM_SCALER_EXPANSION;
 151                         break;
 152                 default:
 153                         if (ASIC_IS_AVIVO(rdev))
 154                                 args.ucEnable = ATOM_SCALER_DISABLE;
 155                         else
 156                                 args.ucEnable = ATOM_SCALER_CENTER;
 157                         break;
 158                 }
 159         }
 160         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 161         if ((is_tv || is_cv)
 162             && rdev->family >= CHIP_RV515 && rdev->family <= CHIP_R580) {
 163                 atom_rv515_force_tv_scaler(rdev, radeon_crtc);
 164         }
 165 }
 166
 167 static void atombios_lock_crtc(struct drm_crtc *crtc, int lock)
 168 {
 169         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 170         struct drm_device *dev = crtc->dev;
 171         struct radeon_device *rdev = dev->dev_private;
 172         int index =
 173             GetIndexIntoMasterTable(COMMAND, UpdateCRTC_DoubleBufferRegisters);
 174         ENABLE_CRTC_PS_ALLOCATION args;
 175
 176         memset(&args, 0, sizeof(args));
 177
 178         args.ucCRTC = radeon_crtc->crtc_id;
 179         args.ucEnable = lock;
 180
 181         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 182 }
 183
 184 static void atombios_enable_crtc(struct drm_crtc *crtc, int state)
 185 {
 186         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 187         struct drm_device *dev = crtc->dev;
 188         struct radeon_device *rdev = dev->dev_private;
 189         int index = GetIndexIntoMasterTable(COMMAND, EnableCRTC);
 190         ENABLE_CRTC_PS_ALLOCATION args;
 191
 192         memset(&args, 0, sizeof(args));
 193
 194         args.ucCRTC = radeon_crtc->crtc_id;
 195         args.ucEnable = state;
 196
 197         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 198 }
 199
 200 static void atombios_enable_crtc_memreq(struct drm_crtc *crtc, int state)
 201 {
 202         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 203         struct drm_device *dev = crtc->dev;
 204         struct radeon_device *rdev = dev->dev_private;
 205         int index = GetIndexIntoMasterTable(COMMAND, EnableCRTCMemReq);
 206         ENABLE_CRTC_PS_ALLOCATION args;
 207
 208         memset(&args, 0, sizeof(args));
 209
 210         args.ucCRTC = radeon_crtc->crtc_id;
 211         args.ucEnable = state;
 212
 213         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 214 }
 215
 216 static const u32 vga_control_regs[6] =
 217 {
 218         AVIVO_D1VGA_CONTROL,
 219         AVIVO_D2VGA_CONTROL,
 220         EVERGREEN_D3VGA_CONTROL,
 221         EVERGREEN_D4VGA_CONTROL,
 222         EVERGREEN_D5VGA_CONTROL,
 223         EVERGREEN_D6VGA_CONTROL,
 224 };
 225
 226 static void atombios_blank_crtc(struct drm_crtc *crtc, int state)
 227 {
 228         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 229         struct drm_device *dev = crtc->dev;
 230         struct radeon_device *rdev = dev->dev_private;
 231         int index = GetIndexIntoMasterTable(COMMAND, BlankCRTC);
 232         BLANK_CRTC_PS_ALLOCATION args;
 233         u32 vga_control = 0;
 234
 235         memset(&args, 0, sizeof(args));
 236
 237         if (ASIC_IS_DCE8(rdev)) {
 238                 vga_control = RREG32(vga_control_regs[radeon_crtc->crtc_id]);
 239                 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control | 1);
 240         }
 241
 242         args.ucCRTC = radeon_crtc->crtc_id;
 243         args.ucBlanking = state;
 244
 245         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 246
 247         if (ASIC_IS_DCE8(rdev)) {
 248                 WREG32(vga_control_regs[radeon_crtc->crtc_id], vga_control);
 249         }
 250 }
 251
 252 static void atombios_powergate_crtc(struct drm_crtc *crtc, int state)
 253 {
 254         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 255         struct drm_device *dev = crtc->dev;
 256         struct radeon_device *rdev = dev->dev_private;
 257         int index = GetIndexIntoMasterTable(COMMAND, EnableDispPowerGating);
 258         ENABLE_DISP_POWER_GATING_PARAMETERS_V2_1 args;
 259
 260         memset(&args, 0, sizeof(args));
 261
 262         args.ucDispPipeId = radeon_crtc->crtc_id;
 263         args.ucEnable = state;
 264
 265         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 266 }
 267
 268 void atombios_crtc_dpms(struct drm_crtc *crtc, int mode)
 269 {
 270         struct drm_device *dev = crtc->dev;
 271         struct radeon_device *rdev = dev->dev_private;
 272         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 273
 274         switch (mode) {
 275         case DRM_MODE_DPMS_ON:
 276                 radeon_crtc->enabled = true;
 277                 atombios_enable_crtc(crtc, ATOM_ENABLE);
 278                 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
 279                         atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
 280                 atombios_blank_crtc(crtc, ATOM_DISABLE);
 281                 if (dev->num_crtcs > radeon_crtc->crtc_id)
 282                         drm_crtc_vblank_on(crtc);
 283                 radeon_crtc_load_lut(crtc);
 284                 break;
 285         case DRM_MODE_DPMS_STANDBY:
 286         case DRM_MODE_DPMS_SUSPEND:
 287         case DRM_MODE_DPMS_OFF:
 288                 if (dev->num_crtcs > radeon_crtc->crtc_id)
 289                         drm_crtc_vblank_off(crtc);
 290                 if (radeon_crtc->enabled)
 291                         atombios_blank_crtc(crtc, ATOM_ENABLE);
 292                 if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
 293                         atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
 294                 atombios_enable_crtc(crtc, ATOM_DISABLE);
 295                 radeon_crtc->enabled = false;
 296                 break;
 297         }
 298         /* adjust pm to dpms */
 299         radeon_pm_compute_clocks(rdev);
 300 }
 301
 302 static void
 303 atombios_set_crtc_dtd_timing(struct drm_crtc *crtc,
 304                              struct drm_display_mode *mode)
 305 {
 306         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 307         struct drm_device *dev = crtc->dev;
 308         struct radeon_device *rdev = dev->dev_private;
 309         SET_CRTC_USING_DTD_TIMING_PARAMETERS args;
 310         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_UsingDTDTiming);
 311         u16 misc = 0;
 312
 313         memset(&args, 0, sizeof(args));
 314         args.usH_Size = cpu_to_le16(mode->crtc_hdisplay - (radeon_crtc->h_border * 2));
 315         args.usH_Blanking_Time =
 316                 cpu_to_le16(mode->crtc_hblank_end - mode->crtc_hdisplay + (radeon_crtc->h_border * 2));
 317         args.usV_Size = cpu_to_le16(mode->crtc_vdisplay - (radeon_crtc->v_border * 2));
 318         args.usV_Blanking_Time =
 319                 cpu_to_le16(mode->crtc_vblank_end - mode->crtc_vdisplay + (radeon_crtc->v_border * 2));
 320         args.usH_SyncOffset =
 321                 cpu_to_le16(mode->crtc_hsync_start - mode->crtc_hdisplay + radeon_crtc->h_border);
 322         args.usH_SyncWidth =
 323                 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
 324         args.usV_SyncOffset =
 325                 cpu_to_le16(mode->crtc_vsync_start - mode->crtc_vdisplay + radeon_crtc->v_border);
 326         args.usV_SyncWidth =
 327                 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
 328         args.ucH_Border = radeon_crtc->h_border;
 329         args.ucV_Border = radeon_crtc->v_border;
 330
 331         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 332                 misc |= ATOM_VSYNC_POLARITY;
 333         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 334                 misc |= ATOM_HSYNC_POLARITY;
 335         if (mode->flags & DRM_MODE_FLAG_CSYNC)
 336                 misc |= ATOM_COMPOSITESYNC;
 337         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 338                 misc |= ATOM_INTERLACE;
 339         if (mode->flags & DRM_MODE_FLAG_DBLCLK)
 340                 misc |= ATOM_DOUBLE_CLOCK_MODE;
 341         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 342                 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
 343
 344         args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 345         args.ucCRTC = radeon_crtc->crtc_id;
 346
 347         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 348 }
 349
 350 static void atombios_crtc_set_timing(struct drm_crtc *crtc,
 351                                      struct drm_display_mode *mode)
 352 {
 353         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 354         struct drm_device *dev = crtc->dev;
 355         struct radeon_device *rdev = dev->dev_private;
 356         SET_CRTC_TIMING_PARAMETERS_PS_ALLOCATION args;
 357         int index = GetIndexIntoMasterTable(COMMAND, SetCRTC_Timing);
 358         u16 misc = 0;
 359
 360         memset(&args, 0, sizeof(args));
 361         args.usH_Total = cpu_to_le16(mode->crtc_htotal);
 362         args.usH_Disp = cpu_to_le16(mode->crtc_hdisplay);
 363         args.usH_SyncStart = cpu_to_le16(mode->crtc_hsync_start);
 364         args.usH_SyncWidth =
 365                 cpu_to_le16(mode->crtc_hsync_end - mode->crtc_hsync_start);
 366         args.usV_Total = cpu_to_le16(mode->crtc_vtotal);
 367         args.usV_Disp = cpu_to_le16(mode->crtc_vdisplay);
 368         args.usV_SyncStart = cpu_to_le16(mode->crtc_vsync_start);
 369         args.usV_SyncWidth =
 370                 cpu_to_le16(mode->crtc_vsync_end - mode->crtc_vsync_start);
 371
 372         args.ucOverscanRight = radeon_crtc->h_border;
 373         args.ucOverscanLeft = radeon_crtc->h_border;
 374         args.ucOverscanBottom = radeon_crtc->v_border;
 375         args.ucOverscanTop = radeon_crtc->v_border;
 376
 377         if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 378                 misc |= ATOM_VSYNC_POLARITY;
 379         if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 380                 misc |= ATOM_HSYNC_POLARITY;
 381         if (mode->flags & DRM_MODE_FLAG_CSYNC)
 382                 misc |= ATOM_COMPOSITESYNC;
 383         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 384                 misc |= ATOM_INTERLACE;
 385         if (mode->flags & DRM_MODE_FLAG_DBLCLK)
 386                 misc |= ATOM_DOUBLE_CLOCK_MODE;
 387         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 388                 misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2;
 389
 390         args.susModeMiscInfo.usAccess = cpu_to_le16(misc);
 391         args.ucCRTC = radeon_crtc->crtc_id;
 392
 393         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 394 }
 395
 396 static void atombios_disable_ss(struct radeon_device *rdev, int pll_id)
 397 {
 398         u32 ss_cntl;
 399
 400         if (ASIC_IS_DCE4(rdev)) {
 401                 switch (pll_id) {
 402                 case ATOM_PPLL1:
 403                         ss_cntl = RREG32(EVERGREEN_P1PLL_SS_CNTL);
 404                         ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
 405                         WREG32(EVERGREEN_P1PLL_SS_CNTL, ss_cntl);
 406                         break;
 407                 case ATOM_PPLL2:
 408                         ss_cntl = RREG32(EVERGREEN_P2PLL_SS_CNTL);
 409                         ss_cntl &= ~EVERGREEN_PxPLL_SS_EN;
 410                         WREG32(EVERGREEN_P2PLL_SS_CNTL, ss_cntl);
 411                         break;
 412                 case ATOM_DCPLL:
 413                 case ATOM_PPLL_INVALID:
 414                         return;
 415                 }
 416         } else if (ASIC_IS_AVIVO(rdev)) {
 417                 switch (pll_id) {
 418                 case ATOM_PPLL1:
 419                         ss_cntl = RREG32(AVIVO_P1PLL_INT_SS_CNTL);
 420                         ss_cntl &= ~1;
 421                         WREG32(AVIVO_P1PLL_INT_SS_CNTL, ss_cntl);
 422                         break;
 423                 case ATOM_PPLL2:
 424                         ss_cntl = RREG32(AVIVO_P2PLL_INT_SS_CNTL);
 425                         ss_cntl &= ~1;
 426                         WREG32(AVIVO_P2PLL_INT_SS_CNTL, ss_cntl);
 427                         break;
 428                 case ATOM_DCPLL:
 429                 case ATOM_PPLL_INVALID:
 430                         return;
 431                 }
 432         }
 433 }
 434
 435
 436 union atom_enable_ss {
 437         ENABLE_LVDS_SS_PARAMETERS lvds_ss;
 438         ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
 439         ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
 440         ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
 441         ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
 442 };
 443
 444 static void atombios_crtc_program_ss(struct radeon_device *rdev,
 445                                      int enable,
 446                                      int pll_id,
 447                                      int crtc_id,
 448                                      struct radeon_atom_ss *ss)
 449 {
 450         unsigned i;
 451         int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
 452         union atom_enable_ss args;
 453
 454         if (enable) {
 455                 /* Don't mess with SS if percentage is 0 or external ss.
 456                  * SS is already disabled previously, and disabling it
 457                  * again can cause display problems if the pll is already
 458                  * programmed.
 459                  */
 460                 if (ss->percentage == 0)
 461                         return;
 462                 if (ss->type & ATOM_EXTERNAL_SS_MASK)
 463                         return;
 464         } else {
 465                 for (i = 0; i < rdev->num_crtc; i++) {
 466                         if (rdev->mode_info.crtcs[i] &&
 467                             rdev->mode_info.crtcs[i]->enabled &&
 468                             i != crtc_id &&
 469                             pll_id == rdev->mode_info.crtcs[i]->pll_id) {
 470                                 /* one other crtc is using this pll don't turn
 471                                  * off spread spectrum as it might turn off
 472                                  * display on active crtc
 473                                  */
 474                                 return;
 475                         }
 476                 }
 477         }
 478
 479         memset(&args, 0, sizeof(args));
 480
 481         if (ASIC_IS_DCE5(rdev)) {
 482                 args.v3.usSpreadSpectrumAmountFrac = cpu_to_le16(0);
 483                 args.v3.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
 484                 switch (pll_id) {
 485                 case ATOM_PPLL1:
 486                         args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
 487                         break;
 488                 case ATOM_PPLL2:
 489                         args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
 490                         break;
 491                 case ATOM_DCPLL:
 492                         args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
 493                         break;
 494                 case ATOM_PPLL_INVALID:
 495                         return;
 496                 }
 497                 args.v3.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
 498                 args.v3.usSpreadSpectrumStep = cpu_to_le16(ss->step);
 499                 args.v3.ucEnable = enable;
 500         } else if (ASIC_IS_DCE4(rdev)) {
 501                 args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
 502                 args.v2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
 503                 switch (pll_id) {
 504                 case ATOM_PPLL1:
 505                         args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P1PLL;
 506                         break;
 507                 case ATOM_PPLL2:
 508                         args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_P2PLL;
 509                         break;
 510                 case ATOM_DCPLL:
 511                         args.v2.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V2_DCPLL;
 512                         break;
 513                 case ATOM_PPLL_INVALID:
 514                         return;
 515                 }
 516                 args.v2.usSpreadSpectrumAmount = cpu_to_le16(ss->amount);
 517                 args.v2.usSpreadSpectrumStep = cpu_to_le16(ss->step);
 518                 args.v2.ucEnable = enable;
 519         } else if (ASIC_IS_DCE3(rdev)) {
 520                 args.v1.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
 521                 args.v1.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
 522                 args.v1.ucSpreadSpectrumStep = ss->step;
 523                 args.v1.ucSpreadSpectrumDelay = ss->delay;
 524                 args.v1.ucSpreadSpectrumRange = ss->range;
 525                 args.v1.ucPpll = pll_id;
 526                 args.v1.ucEnable = enable;
 527         } else if (ASIC_IS_AVIVO(rdev)) {
 528                 if ((enable == ATOM_DISABLE) || (ss->percentage == 0) ||
 529                     (ss->type & ATOM_EXTERNAL_SS_MASK)) {
 530                         atombios_disable_ss(rdev, pll_id);
 531                         return;
 532                 }
 533                 args.lvds_ss_2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
 534                 args.lvds_ss_2.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
 535                 args.lvds_ss_2.ucSpreadSpectrumStep = ss->step;
 536                 args.lvds_ss_2.ucSpreadSpectrumDelay = ss->delay;
 537                 args.lvds_ss_2.ucSpreadSpectrumRange = ss->range;
 538                 args.lvds_ss_2.ucEnable = enable;
 539         } else {
 540                 if (enable == ATOM_DISABLE) {
 541                         atombios_disable_ss(rdev, pll_id);
 542                         return;
 543                 }
 544                 args.lvds_ss.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
 545                 args.lvds_ss.ucSpreadSpectrumType = ss->type & ATOM_SS_CENTRE_SPREAD_MODE_MASK;
 546                 args.lvds_ss.ucSpreadSpectrumStepSize_Delay = (ss->step & 3) << 2;
 547                 args.lvds_ss.ucSpreadSpectrumStepSize_Delay |= (ss->delay & 7) << 4;
 548                 args.lvds_ss.ucEnable = enable;
 549         }
 550         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 551 }
 552
 553 union adjust_pixel_clock {
 554         ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
 555         ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
 556 };
 557
 558 static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 559                                struct drm_display_mode *mode)
 560 {
 561         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 562         struct drm_device *dev = crtc->dev;
 563         struct radeon_device *rdev = dev->dev_private;
 564         struct drm_encoder *encoder = radeon_crtc->encoder;
 565         struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 566         struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 567         u32 adjusted_clock = mode->clock;
 568         int encoder_mode = atombios_get_encoder_mode(encoder);
 569         u32 dp_clock = mode->clock;
 570         u32 clock = mode->clock;
 571         int bpc = radeon_crtc->bpc;
 572         bool is_duallink = radeon_dig_monitor_is_duallink(encoder, mode->clock);
 573
 574         /* reset the pll flags */
 575         radeon_crtc->pll_flags = 0;
 576
 577         if (ASIC_IS_AVIVO(rdev)) {
 578                 if ((rdev->family == CHIP_RS600) ||
 579                     (rdev->family == CHIP_RS690) ||
 580                     (rdev->family == CHIP_RS740))
 581                         radeon_crtc->pll_flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
 582                                 RADEON_PLL_PREFER_CLOSEST_LOWER);
 583
 584                 if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)        /* range limits??? */
 585                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
 586                 else
 587                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 588
 589                 if (rdev->family < CHIP_RV770)
 590                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;
 591                 /* use frac fb div on APUs */
 592                 if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
 593                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 594                 /* use frac fb div on RS780/RS880 */
 595                 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
 596                     && !radeon_crtc->ss_enabled)
 597                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 598                 if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
 599                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 600         } else {
 601                 radeon_crtc->pll_flags |= RADEON_PLL_LEGACY;
 602
 603                 if (mode->clock > 200000)       /* range limits??? */
 604                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
 605                 else
 606                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
 607         }
 608
 609         if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
 610             (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE)) {
 611                 if (connector) {
 612                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 613                         struct radeon_connector_atom_dig *dig_connector =
 614                                 radeon_connector->con_priv;
 615
 616                         dp_clock = dig_connector->dp_clock;
 617                 }
 618         }
 619
 620         if (radeon_encoder->is_mst_encoder) {
 621                 struct radeon_encoder_mst *mst_enc = radeon_encoder->enc_priv;
 622                 struct radeon_connector_atom_dig *dig_connector = mst_enc->connector->con_priv;
 623
 624                 dp_clock = dig_connector->dp_clock;
 625         }
 626
 627         /* use recommended ref_div for ss */
 628         if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 629                 if (radeon_crtc->ss_enabled) {
 630                         if (radeon_crtc->ss.refdiv) {
 631                                 radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
 632                                 radeon_crtc->pll_reference_div = radeon_crtc->ss.refdiv;
 633                                 if (ASIC_IS_AVIVO(rdev) &&
 634                                     rdev->family != CHIP_RS780 &&
 635                                     rdev->family != CHIP_RS880)
 636                                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 637                         }
 638                 }
 639         }
 640
 641         if (ASIC_IS_AVIVO(rdev)) {
 642                 /* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
 643                 if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
 644                         adjusted_clock = mode->clock * 2;
 645                 if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
 646                         radeon_crtc->pll_flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
 647                 if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
 648                         radeon_crtc->pll_flags |= RADEON_PLL_IS_LCD;
 649         } else {
 650                 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
 651                         radeon_crtc->pll_flags |= RADEON_PLL_NO_ODD_POST_DIV;
 652                 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS)
 653                         radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
 654         }
 655
 656         /* adjust pll for deep color modes */
 657         if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
 658                 switch (bpc) {
 659                 case 8:
 660                 default:
 661                         break;
 662                 case 10:
 663                         clock = (clock * 5) / 4;
 664                         break;
 665                 case 12:
 666                         clock = (clock * 3) / 2;
 667                         break;
 668                 case 16:
 669                         clock = clock * 2;
 670                         break;
 671                 }
 672         }
 673
 674         /* DCE3+ has an AdjustDisplayPll that will adjust the pixel clock
 675          * accordingly based on the encoder/transmitter to work around
 676          * special hw requirements.
 677          */
 678         if (ASIC_IS_DCE3(rdev)) {
 679                 union adjust_pixel_clock args;
 680                 u8 frev, crev;
 681                 int index;
 682
 683                 index = GetIndexIntoMasterTable(COMMAND, AdjustDisplayPll);
 684                 if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
 685                                            &crev))
 686                         return adjusted_clock;
 687
 688                 memset(&args, 0, sizeof(args));
 689
 690                 switch (frev) {
 691                 case 1:
 692                         switch (crev) {
 693                         case 1:
 694                         case 2:
 695                                 args.v1.usPixelClock = cpu_to_le16(clock / 10);
 696                                 args.v1.ucTransmitterID = radeon_encoder->encoder_id;
 697                                 args.v1.ucEncodeMode = encoder_mode;
 698                                 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
 699                                         args.v1.ucConfig |=
 700                                                 ADJUST_DISPLAY_CONFIG_SS_ENABLE;
 701
 702                                 atom_execute_table(rdev->mode_info.atom_context,
 703                                                    index, (uint32_t *)&args);
 704                                 adjusted_clock = le16_to_cpu(args.v1.usPixelClock) * 10;
 705                                 break;
 706                         case 3:
 707                                 args.v3.sInput.usPixelClock = cpu_to_le16(clock / 10);
 708                                 args.v3.sInput.ucTransmitterID = radeon_encoder->encoder_id;
 709                                 args.v3.sInput.ucEncodeMode = encoder_mode;
 710                                 args.v3.sInput.ucDispPllConfig = 0;
 711                                 if (radeon_crtc->ss_enabled && radeon_crtc->ss.percentage)
 712                                         args.v3.sInput.ucDispPllConfig |=
 713                                                 DISPPLL_CONFIG_SS_ENABLE;
 714                                 if (ENCODER_MODE_IS_DP(encoder_mode)) {
 715                                         args.v3.sInput.ucDispPllConfig |=
 716                                                 DISPPLL_CONFIG_COHERENT_MODE;
 717                                         /* 16200 or 27000 */
 718                                         args.v3.sInput.usPixelClock = cpu_to_le16(dp_clock / 10);
 719                                 } else if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
 720                                         struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 721                                         if (dig->coherent_mode)
 722                                                 args.v3.sInput.ucDispPllConfig |=
 723                                                         DISPPLL_CONFIG_COHERENT_MODE;
 724                                         if (is_duallink)
 725                                                 args.v3.sInput.ucDispPllConfig |=
 726                                                         DISPPLL_CONFIG_DUAL_LINK;
 727                                 }
 728                                 if (radeon_encoder_get_dp_bridge_encoder_id(encoder) !=
 729                                     ENCODER_OBJECT_ID_NONE)
 730                                         args.v3.sInput.ucExtTransmitterID =
 731                                                 radeon_encoder_get_dp_bridge_encoder_id(encoder);
 732                                 else
 733                                         args.v3.sInput.ucExtTransmitterID = 0;
 734
 735                                 atom_execute_table(rdev->mode_info.atom_context,
 736                                                    index, (uint32_t *)&args);
 737                                 adjusted_clock = le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10;
 738                                 if (args.v3.sOutput.ucRefDiv) {
 739                                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 740                                         radeon_crtc->pll_flags |= RADEON_PLL_USE_REF_DIV;
 741                                         radeon_crtc->pll_reference_div = args.v3.sOutput.ucRefDiv;
 742                                 }
 743                                 if (args.v3.sOutput.ucPostDiv) {
 744                                         radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 745                                         radeon_crtc->pll_flags |= RADEON_PLL_USE_POST_DIV;
 746                                         radeon_crtc->pll_post_div = args.v3.sOutput.ucPostDiv;
 747                                 }
 748                                 break;
 749                         default:
 750                                 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 751                                 return adjusted_clock;
 752                         }
 753                         break;
 754                 default:
 755                         DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 756                         return adjusted_clock;
 757                 }
 758         }
 759         return adjusted_clock;
 760 }
 761
 762 union set_pixel_clock {
 763         SET_PIXEL_CLOCK_PS_ALLOCATION base;
 764         PIXEL_CLOCK_PARAMETERS v1;
 765         PIXEL_CLOCK_PARAMETERS_V2 v2;
 766         PIXEL_CLOCK_PARAMETERS_V3 v3;
 767         PIXEL_CLOCK_PARAMETERS_V5 v5;
 768         PIXEL_CLOCK_PARAMETERS_V6 v6;
 769 };
 770
 771 /* on DCE5, make sure the voltage is high enough to support the
 772  * required disp clk.
 773  */
 774 static void atombios_crtc_set_disp_eng_pll(struct radeon_device *rdev,
 775                                     u32 dispclk)
 776 {
 777         u8 frev, crev;
 778         int index;
 779         union set_pixel_clock args;
 780
 781         memset(&args, 0, sizeof(args));
 782
 783         index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
 784         if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
 785                                    &crev))
 786                 return;
 787
 788         switch (frev) {
 789         case 1:
 790                 switch (crev) {
 791                 case 5:
 792                         /* if the default dcpll clock is specified,
 793                          * SetPixelClock provides the dividers
 794                          */
 795                         args.v5.ucCRTC = ATOM_CRTC_INVALID;
 796                         args.v5.usPixelClock = cpu_to_le16(dispclk);
 797                         args.v5.ucPpll = ATOM_DCPLL;
 798                         break;
 799                 case 6:
 800                         /* if the default dcpll clock is specified,
 801                          * SetPixelClock provides the dividers
 802                          */
 803                         args.v6.ulDispEngClkFreq = cpu_to_le32(dispclk);
 804                         if (ASIC_IS_DCE61(rdev) || ASIC_IS_DCE8(rdev))
 805                                 args.v6.ucPpll = ATOM_EXT_PLL1;
 806                         else if (ASIC_IS_DCE6(rdev))
 807                                 args.v6.ucPpll = ATOM_PPLL0;
 808                         else
 809                                 args.v6.ucPpll = ATOM_DCPLL;
 810                         break;
 811                 default:
 812                         DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 813                         return;
 814                 }
 815                 break;
 816         default:
 817                 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 818                 return;
 819         }
 820         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 821 }
 822
 823 static void atombios_crtc_program_pll(struct drm_crtc *crtc,
 824                                       u32 crtc_id,
 825                                       int pll_id,
 826                                       u32 encoder_mode,
 827                                       u32 encoder_id,
 828                                       u32 clock,
 829                                       u32 ref_div,
 830                                       u32 fb_div,
 831                                       u32 frac_fb_div,
 832                                       u32 post_div,
 833                                       int bpc,
 834                                       bool ss_enabled,
 835                                       struct radeon_atom_ss *ss)
 836 {
 837         struct drm_device *dev = crtc->dev;
 838         struct radeon_device *rdev = dev->dev_private;
 839         u8 frev, crev;
 840         int index = GetIndexIntoMasterTable(COMMAND, SetPixelClock);
 841         union set_pixel_clock args;
 842
 843         memset(&args, 0, sizeof(args));
 844
 845         if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
 846                                    &crev))
 847                 return;
 848
 849         switch (frev) {
 850         case 1:
 851                 switch (crev) {
 852                 case 1:
 853                         if (clock == ATOM_DISABLE)
 854                                 return;
 855                         args.v1.usPixelClock = cpu_to_le16(clock / 10);
 856                         args.v1.usRefDiv = cpu_to_le16(ref_div);
 857                         args.v1.usFbDiv = cpu_to_le16(fb_div);
 858                         args.v1.ucFracFbDiv = frac_fb_div;
 859                         args.v1.ucPostDiv = post_div;
 860                         args.v1.ucPpll = pll_id;
 861                         args.v1.ucCRTC = crtc_id;
 862                         args.v1.ucRefDivSrc = 1;
 863                         break;
 864                 case 2:
 865                         args.v2.usPixelClock = cpu_to_le16(clock / 10);
 866                         args.v2.usRefDiv = cpu_to_le16(ref_div);
 867                         args.v2.usFbDiv = cpu_to_le16(fb_div);
 868                         args.v2.ucFracFbDiv = frac_fb_div;
 869                         args.v2.ucPostDiv = post_div;
 870                         args.v2.ucPpll = pll_id;
 871                         args.v2.ucCRTC = crtc_id;
 872                         args.v2.ucRefDivSrc = 1;
 873                         break;
 874                 case 3:
 875                         args.v3.usPixelClock = cpu_to_le16(clock / 10);
 876                         args.v3.usRefDiv = cpu_to_le16(ref_div);
 877                         args.v3.usFbDiv = cpu_to_le16(fb_div);
 878                         args.v3.ucFracFbDiv = frac_fb_div;
 879                         args.v3.ucPostDiv = post_div;
 880                         args.v3.ucPpll = pll_id;
 881                         if (crtc_id == ATOM_CRTC2)
 882                                 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC2;
 883                         else
 884                                 args.v3.ucMiscInfo = PIXEL_CLOCK_MISC_CRTC_SEL_CRTC1;
 885                         if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
 886                                 args.v3.ucMiscInfo |= PIXEL_CLOCK_MISC_REF_DIV_SRC;
 887                         args.v3.ucTransmitterId = encoder_id;
 888                         args.v3.ucEncoderMode = encoder_mode;
 889                         break;
 890                 case 5:
 891                         args.v5.ucCRTC = crtc_id;
 892                         args.v5.usPixelClock = cpu_to_le16(clock / 10);
 893                         args.v5.ucRefDiv = ref_div;
 894                         args.v5.usFbDiv = cpu_to_le16(fb_div);
 895                         args.v5.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
 896                         args.v5.ucPostDiv = post_div;
 897                         args.v5.ucMiscInfo = 0; /* HDMI depth, etc. */
 898                         if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
 899                                 args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_REF_DIV_SRC;
 900                         if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
 901                                 switch (bpc) {
 902                                 case 8:
 903                                 default:
 904                                         args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_24BPP;
 905                                         break;
 906                                 case 10:
 907                                         /* yes this is correct, the atom define is wrong */
 908                                         args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_32BPP;
 909                                         break;
 910                                 case 12:
 911                                         /* yes this is correct, the atom define is wrong */
 912                                         args.v5.ucMiscInfo |= PIXEL_CLOCK_V5_MISC_HDMI_30BPP;
 913                                         break;
 914                                 }
 915                         }
 916                         args.v5.ucTransmitterID = encoder_id;
 917                         args.v5.ucEncoderMode = encoder_mode;
 918                         args.v5.ucPpll = pll_id;
 919                         break;
 920                 case 6:
 921                         args.v6.ulDispEngClkFreq = cpu_to_le32(crtc_id << 24 | clock / 10);
 922                         args.v6.ucRefDiv = ref_div;
 923                         args.v6.usFbDiv = cpu_to_le16(fb_div);
 924                         args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
 925                         args.v6.ucPostDiv = post_div;
 926                         args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
 927                         if (ss_enabled && (ss->type & ATOM_EXTERNAL_SS_MASK))
 928                                 args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_REF_DIV_SRC;
 929                         if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
 930                                 switch (bpc) {
 931                                 case 8:
 932                                 default:
 933                                         args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_24BPP;
 934                                         break;
 935                                 case 10:
 936                                         args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_30BPP_V6;
 937                                         break;
 938                                 case 12:
 939                                         args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_36BPP_V6;
 940                                         break;
 941                                 case 16:
 942                                         args.v6.ucMiscInfo |= PIXEL_CLOCK_V6_MISC_HDMI_48BPP;
 943                                         break;
 944                                 }
 945                         }
 946                         args.v6.ucTransmitterID = encoder_id;
 947                         args.v6.ucEncoderMode = encoder_mode;
 948                         args.v6.ucPpll = pll_id;
 949                         break;
 950                 default:
 951                         DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 952                         return;
 953                 }
 954                 break;
 955         default:
 956                 DRM_ERROR("Unknown table version %d %d\n", frev, crev);
 957                 return;
 958         }
 959
 960         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 961 }
 962
 963 static bool atombios_crtc_prepare_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
 964 {
 965         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 966         struct drm_device *dev = crtc->dev;
 967         struct radeon_device *rdev = dev->dev_private;
 968         struct radeon_encoder *radeon_encoder =
 969                 to_radeon_encoder(radeon_crtc->encoder);
 970         int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
 971
 972         radeon_crtc->bpc = 8;
 973         radeon_crtc->ss_enabled = false;
 974
 975         if (radeon_encoder->is_mst_encoder) {
 976                 radeon_dp_mst_prepare_pll(crtc, mode);
 977         } else if ((radeon_encoder->active_device & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
 978             (radeon_encoder_get_dp_bridge_encoder_id(radeon_crtc->encoder) != ENCODER_OBJECT_ID_NONE)) {
 979                 struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 980                 struct drm_connector *connector =
 981                         radeon_get_connector_for_encoder(radeon_crtc->encoder);
 982                 struct radeon_connector *radeon_connector =
 983                         to_radeon_connector(connector);
 984                 struct radeon_connector_atom_dig *dig_connector =
 985                         radeon_connector->con_priv;
 986                 int dp_clock;
 987
 988                 /* Assign mode clock for hdmi deep color max clock limit check */
 989                 radeon_connector->pixelclock_for_modeset = mode->clock;
 990                 radeon_crtc->bpc = radeon_get_monitor_bpc(connector);
 991
 992                 switch (encoder_mode) {
 993                 case ATOM_ENCODER_MODE_DP_MST:
 994                 case ATOM_ENCODER_MODE_DP:
 995                         /* DP/eDP */
 996                         dp_clock = dig_connector->dp_clock / 10;
 997                         if (ASIC_IS_DCE4(rdev))
 998                                 radeon_crtc->ss_enabled =
 999                                         radeon_atombios_get_asic_ss_info(rdev, &radeon_crtc->ss,
1000                                                                          ASIC_INTERNAL_SS_ON_DP,
1001                                                                          dp_clock);
1002                         else {
1003                                 if (dp_clock == 16200) {
1004                                         radeon_crtc->ss_enabled =
1005                                                 radeon_atombios_get_ppll_ss_info(rdev,
1006                                                                                  &radeon_crtc->ss,
1007                                                                                  ATOM_DP_SS_ID2);
1008                                         if (!radeon_crtc->ss_enabled)
1009                                                 radeon_crtc->ss_enabled =
1010                                                         radeon_atombios_get_ppll_ss_info(rdev,
1011                                                                                          &radeon_crtc->ss,
1012                                                                                          ATOM_DP_SS_ID1);
1013                                 } else {
1014                                         radeon_crtc->ss_enabled =
1015                                                 radeon_atombios_get_ppll_ss_info(rdev,
1016                                                                                  &radeon_crtc->ss,
1017                                                                                  ATOM_DP_SS_ID1);
1018                                 }
1019                                 /* disable spread spectrum on DCE3 DP */
1020                                 radeon_crtc->ss_enabled = false;
1021                         }
1022                         break;
1023                 case ATOM_ENCODER_MODE_LVDS:
1024                         if (ASIC_IS_DCE4(rdev))
1025                                 radeon_crtc->ss_enabled =
1026                                         radeon_atombios_get_asic_ss_info(rdev,
1027                                                                          &radeon_crtc->ss,
1028                                                                          dig->lcd_ss_id,
1029                                                                          mode->clock / 10);
1030                         else
1031                                 radeon_crtc->ss_enabled =
1032                                         radeon_atombios_get_ppll_ss_info(rdev,
1033                                                                          &radeon_crtc->ss,
1034                                                                          dig->lcd_ss_id);
1035                         break;
1036                 case ATOM_ENCODER_MODE_DVI:
1037                         if (ASIC_IS_DCE4(rdev))
1038                                 radeon_crtc->ss_enabled =
1039                                         radeon_atombios_get_asic_ss_info(rdev,
1040                                                                          &radeon_crtc->ss,
1041                                                                          ASIC_INTERNAL_SS_ON_TMDS,
1042                                                                          mode->clock / 10);
1043                         break;
1044                 case ATOM_ENCODER_MODE_HDMI:
1045                         if (ASIC_IS_DCE4(rdev))
1046                                 radeon_crtc->ss_enabled =
1047                                         radeon_atombios_get_asic_ss_info(rdev,
1048                                                                          &radeon_crtc->ss,
1049                                                                          ASIC_INTERNAL_SS_ON_HDMI,
1050                                                                          mode->clock / 10);
1051                         break;
1052                 default:
1053                         break;
1054                 }
1055         }
1056
1057         /* adjust pixel clock as needed */
1058         radeon_crtc->adjusted_clock = atombios_adjust_pll(crtc, mode);
1059
1060         return true;
1061 }
1062
1063 static void atombios_crtc_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
1064 {
1065         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1066         struct drm_device *dev = crtc->dev;
1067         struct radeon_device *rdev = dev->dev_private;
1068         struct radeon_encoder *radeon_encoder =
1069                 to_radeon_encoder(radeon_crtc->encoder);
1070         u32 pll_clock = mode->clock;
1071         u32 clock = mode->clock;
1072         u32 ref_div = 0, fb_div = 0, frac_fb_div = 0, post_div = 0;
1073         struct radeon_pll *pll;
1074         int encoder_mode = atombios_get_encoder_mode(radeon_crtc->encoder);
1075
1076         /* pass the actual clock to atombios_crtc_program_pll for DCE5,6 for HDMI */
1077         if (ASIC_IS_DCE5(rdev) &&
1078             (encoder_mode == ATOM_ENCODER_MODE_HDMI) &&
1079             (radeon_crtc->bpc > 8))
1080                 clock = radeon_crtc->adjusted_clock;
1081
1082         switch (radeon_crtc->pll_id) {
1083         case ATOM_PPLL1:
1084                 pll = &rdev->clock.p1pll;
1085                 break;
1086         case ATOM_PPLL2:
1087                 pll = &rdev->clock.p2pll;
1088                 break;
1089         case ATOM_DCPLL:
1090         case ATOM_PPLL_INVALID:
1091         default:
1092                 pll = &rdev->clock.dcpll;
1093                 break;
1094         }
1095
1096         /* update pll params */
1097         pll->flags = radeon_crtc->pll_flags;
1098         pll->reference_div = radeon_crtc->pll_reference_div;
1099         pll->post_div = radeon_crtc->pll_post_div;
1100
1101         if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))
1102                 /* TV seems to prefer the legacy algo on some boards */
1103                 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1104                                           &fb_div, &frac_fb_div, &ref_div, &post_div);
1105         else if (ASIC_IS_AVIVO(rdev))
1106                 radeon_compute_pll_avivo(pll, radeon_crtc->adjusted_clock, &pll_clock,
1107                                          &fb_div, &frac_fb_div, &ref_div, &post_div);
1108         else
1109                 radeon_compute_pll_legacy(pll, radeon_crtc->adjusted_clock, &pll_clock,
1110                                           &fb_div, &frac_fb_div, &ref_div, &post_div);
1111
1112         atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id,
1113                                  radeon_crtc->crtc_id, &radeon_crtc->ss);
1114
1115         atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
1116                                   encoder_mode, radeon_encoder->encoder_id, clock,
1117                                   ref_div, fb_div, frac_fb_div, post_div,
1118                                   radeon_crtc->bpc, radeon_crtc->ss_enabled, &radeon_crtc->ss);
1119
1120         if (radeon_crtc->ss_enabled) {
1121                 /* calculate ss amount and step size */
1122                 if (ASIC_IS_DCE4(rdev)) {
1123                         u32 step_size;
1124                         u32 amount = (((fb_div * 10) + frac_fb_div) *
1125                                       (u32)radeon_crtc->ss.percentage) /
1126                                 (100 * (u32)radeon_crtc->ss.percentage_divider);
1127                         radeon_crtc->ss.amount = (amount / 10) & ATOM_PPLL_SS_AMOUNT_V2_FBDIV_MASK;
1128                         radeon_crtc->ss.amount |= ((amount - (amount / 10)) << ATOM_PPLL_SS_AMOUNT_V2_NFRAC_SHIFT) &
1129                                 ATOM_PPLL_SS_AMOUNT_V2_NFRAC_MASK;
1130                         if (radeon_crtc->ss.type & ATOM_PPLL_SS_TYPE_V2_CENTRE_SPREAD)
1131                                 step_size = (4 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1132                                         (125 * 25 * pll->reference_freq / 100);
1133                         else
1134                                 step_size = (2 * amount * ref_div * ((u32)radeon_crtc->ss.rate * 2048)) /
1135                                         (125 * 25 * pll->reference_freq / 100);
1136                         radeon_crtc->ss.step = step_size;
1137                 }
1138
1139                 atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id,
1140                                          radeon_crtc->crtc_id, &radeon_crtc->ss);
1141         }
1142 }
1143
1144 static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
1145                                  struct drm_framebuffer *fb,
1146                                  int x, int y, int atomic)
1147 {
1148         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1149         struct drm_device *dev = crtc->dev;
1150         struct radeon_device *rdev = dev->dev_private;
1151         struct drm_framebuffer *target_fb;
1152         struct drm_gem_object *obj;
1153         struct radeon_bo *rbo;
1154         uint64_t fb_location;
1155         uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1156         unsigned bankw, bankh, mtaspect, tile_split;
1157         u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
1158         u32 tmp, viewport_w, viewport_h;
1159         int r;
1160         bool bypass_lut = false;
1161         struct drm_format_name_buf format_name;
1162
1163         /* no fb bound */
1164         if (!atomic && !crtc->primary->fb) {
1165                 DRM_DEBUG_KMS("No FB bound\n");
1166                 return 0;
1167         }
1168
1169         if (atomic)
1170                 target_fb = fb;
1171         else
1172                 target_fb = crtc->primary->fb;
1173
1174         /* If atomic, assume fb object is pinned & idle & fenced and
1175          * just update base pointers
1176          */
1177         obj = target_fb->obj[0];
1178         rbo = gem_to_radeon_bo(obj);
1179         r = radeon_bo_reserve(rbo, false);
1180         if (unlikely(r != 0))
1181                 return r;
1182
1183         if (atomic)
1184                 fb_location = radeon_bo_gpu_offset(rbo);
1185         else {
1186                 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1187                 if (unlikely(r != 0)) {
1188                         radeon_bo_unreserve(rbo);
1189                         return -EINVAL;
1190                 }
1191         }
1192
1193         radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1194         radeon_bo_unreserve(rbo);
1195
1196         switch (target_fb->format->format) {
1197         case DRM_FORMAT_C8:
1198                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
1199                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
1200                 break;
1201         case DRM_FORMAT_XRGB4444:
1202         case DRM_FORMAT_ARGB4444:
1203                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1204                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB4444));
1205 #ifdef __BIG_ENDIAN
1206                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1207 #endif
1208                 break;
1209         case DRM_FORMAT_XRGB1555:
1210         case DRM_FORMAT_ARGB1555:
1211                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1212                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
1213 #ifdef __BIG_ENDIAN
1214                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1215 #endif
1216                 break;
1217         case DRM_FORMAT_BGRX5551:
1218         case DRM_FORMAT_BGRA5551:
1219                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1220                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA5551));
1221 #ifdef __BIG_ENDIAN
1222                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1223 #endif
1224                 break;
1225         case DRM_FORMAT_RGB565:
1226                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1227                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
1228 #ifdef __BIG_ENDIAN
1229                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1230 #endif
1231                 break;
1232         case DRM_FORMAT_XRGB8888:
1233         case DRM_FORMAT_ARGB8888:
1234                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1235                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1236 #ifdef __BIG_ENDIAN
1237                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1238 #endif
1239                 break;
1240         case DRM_FORMAT_XRGB2101010:
1241         case DRM_FORMAT_ARGB2101010:
1242                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1243                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB2101010));
1244 #ifdef __BIG_ENDIAN
1245                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1246 #endif
1247                 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1248                 bypass_lut = true;
1249                 break;
1250         case DRM_FORMAT_BGRX1010102:
1251         case DRM_FORMAT_BGRA1010102:
1252                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1253                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA1010102));
1254 #ifdef __BIG_ENDIAN
1255                 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1256 #endif
1257                 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1258                 bypass_lut = true;
1259                 break;
1260         case DRM_FORMAT_XBGR8888:
1261         case DRM_FORMAT_ABGR8888:
1262                 fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1263                              EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1264                 fb_swap = (EVERGREEN_GRPH_RED_CROSSBAR(EVERGREEN_GRPH_RED_SEL_B) |
1265                            EVERGREEN_GRPH_BLUE_CROSSBAR(EVERGREEN_GRPH_BLUE_SEL_R));
1266 #ifdef __BIG_ENDIAN
1267                 fb_swap |= EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1268 #endif
1269                 break;
1270         default:
1271                 DRM_ERROR("Unsupported screen format %s\n",
1272                           drm_get_format_name(target_fb->format->format, &format_name));
1273                 return -EINVAL;
1274         }
1275
1276         if (tiling_flags & RADEON_TILING_MACRO) {
1277                 evergreen_tiling_fields(tiling_flags, &bankw, &bankh, &mtaspect, &tile_split);
1278
1279                 /* Set NUM_BANKS. */
1280                 if (rdev->family >= CHIP_TAHITI) {
1281                         unsigned index, num_banks;
1282
1283                         if (rdev->family >= CHIP_BONAIRE) {
1284                                 unsigned tileb, tile_split_bytes;
1285
1286                                 /* Calculate the macrotile mode index. */
1287                                 tile_split_bytes = 64 << tile_split;
1288                                 tileb = 8 * 8 * target_fb->format->cpp[0];
1289                                 tileb = min(tile_split_bytes, tileb);
1290
1291                                 for (index = 0; tileb > 64; index++)
1292                                         tileb >>= 1;
1293
1294                                 if (index >= 16) {
1295                                         DRM_ERROR("Wrong screen bpp (%u) or tile split (%u)\n",
1296                                                   target_fb->format->cpp[0] * 8,
1297                                                   tile_split);
1298                                         return -EINVAL;
1299                                 }
1300
1301                                 num_banks = (rdev->config.cik.macrotile_mode_array[index] >> 6) & 0x3;
1302                         } else {
1303                                 switch (target_fb->format->cpp[0] * 8) {
1304                                 case 8:
1305                                         index = 10;
1306                                         break;
1307                                 case 16:
1308                                         index = SI_TILE_MODE_COLOR_2D_SCANOUT_16BPP;
1309                                         break;
1310                                 default:
1311                                 case 32:
1312                                         index = SI_TILE_MODE_COLOR_2D_SCANOUT_32BPP;
1313                                         break;
1314                                 }
1315
1316                                 num_banks = (rdev->config.si.tile_mode_array[index] >> 20) & 0x3;
1317                         }
1318
1319                         fb_format |= EVERGREEN_GRPH_NUM_BANKS(num_banks);
1320                 } else {
1321                         /* NI and older. */
1322                         if (rdev->family >= CHIP_CAYMAN)
1323                                 tmp = rdev->config.cayman.tile_config;
1324                         else
1325                                 tmp = rdev->config.evergreen.tile_config;
1326
1327                         switch ((tmp & 0xf0) >> 4) {
1328                         case 0: /* 4 banks */
1329                                 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_4_BANK);
1330                                 break;
1331                         case 1: /* 8 banks */
1332                         default:
1333                                 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_8_BANK);
1334                                 break;
1335                         case 2: /* 16 banks */
1336                                 fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_16_BANK);
1337                                 break;
1338                         }
1339                 }
1340
1341                 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
1342                 fb_format |= EVERGREEN_GRPH_TILE_SPLIT(tile_split);
1343                 fb_format |= EVERGREEN_GRPH_BANK_WIDTH(bankw);
1344                 fb_format |= EVERGREEN_GRPH_BANK_HEIGHT(bankh);
1345                 fb_format |= EVERGREEN_GRPH_MACRO_TILE_ASPECT(mtaspect);
1346                 if (rdev->family >= CHIP_BONAIRE) {
1347                         /* XXX need to know more about the surface tiling mode */
1348                         fb_format |= CIK_GRPH_MICRO_TILE_MODE(CIK_DISPLAY_MICRO_TILING);
1349                 }
1350         } else if (tiling_flags & RADEON_TILING_MICRO)
1351                 fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
1352
1353         if (rdev->family >= CHIP_BONAIRE) {
1354                 /* Read the pipe config from the 2D TILED SCANOUT mode.
1355                  * It should be the same for the other modes too, but not all
1356                  * modes set the pipe config field. */
1357                 u32 pipe_config = (rdev->config.cik.tile_mode_array[10] >> 6) & 0x1f;
1358
1359                 fb_format |= CIK_GRPH_PIPE_CONFIG(pipe_config);
1360         } else if ((rdev->family == CHIP_TAHITI) ||
1361                    (rdev->family == CHIP_PITCAIRN))
1362                 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
1363         else if ((rdev->family == CHIP_VERDE) ||
1364                  (rdev->family == CHIP_OLAND) ||
1365                  (rdev->family == CHIP_HAINAN)) /* for completeness.  HAINAN has no display hw */
1366                 fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
1367
1368         switch (radeon_crtc->crtc_id) {
1369         case 0:
1370                 WREG32(AVIVO_D1VGA_CONTROL, 0);
1371                 break;
1372         case 1:
1373                 WREG32(AVIVO_D2VGA_CONTROL, 0);
1374                 break;
1375         case 2:
1376                 WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1377                 break;
1378         case 3:
1379                 WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1380                 break;
1381         case 4:
1382                 WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1383                 break;
1384         case 5:
1385                 WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1386                 break;
1387         default:
1388                 break;
1389         }
1390
1391         /* Make sure surface address is updated at vertical blank rather than
1392          * horizontal blank
1393          */
1394         WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1395
1396         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1397                upper_32_bits(fb_location));
1398         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1399                upper_32_bits(fb_location));
1400         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1401                (u32)fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1402         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1403                (u32) fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1404         WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1405         WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1406
1407         /*
1408          * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
1409          * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
1410          * retain the full precision throughout the pipeline.
1411          */
1412         WREG32_P(EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL + radeon_crtc->crtc_offset,
1413                  (bypass_lut ? EVERGREEN_LUT_10BIT_BYPASS_EN : 0),
1414                  ~EVERGREEN_LUT_10BIT_BYPASS_EN);
1415
1416         if (bypass_lut)
1417                 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1418
1419         WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1420         WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1421         WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
1422         WREG32(EVERGREEN_GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1423         WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1424         WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1425
1426         fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1427         WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1428         WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1429
1430         if (rdev->family >= CHIP_BONAIRE)
1431                 WREG32(CIK_LB_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1432                        target_fb->height);
1433         else
1434                 WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1435                        target_fb->height);
1436         x &= ~3;
1437         y &= ~1;
1438         WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
1439                (x << 16) | y);
1440         viewport_w = crtc->mode.hdisplay;
1441         viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1442         if ((rdev->family >= CHIP_BONAIRE) &&
1443             (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
1444                 viewport_h *= 2;
1445         WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1446                (viewport_w << 16) | viewport_h);
1447
1448         /* set pageflip to happen anywhere in vblank interval */
1449         WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1450
1451         if (!atomic && fb && fb != crtc->primary->fb) {
1452                 rbo = gem_to_radeon_bo(fb->obj[0]);
1453                 r = radeon_bo_reserve(rbo, false);
1454                 if (unlikely(r != 0))
1455                         return r;
1456                 radeon_bo_unpin(rbo);
1457                 radeon_bo_unreserve(rbo);
1458         }
1459
1460         /* Bytes per pixel may have changed */
1461         radeon_bandwidth_update(rdev);
1462
1463         return 0;
1464 }
1465
1466 static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
1467                                   struct drm_framebuffer *fb,
1468                                   int x, int y, int atomic)
1469 {
1470         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1471         struct drm_device *dev = crtc->dev;
1472         struct radeon_device *rdev = dev->dev_private;
1473         struct drm_gem_object *obj;
1474         struct radeon_bo *rbo;
1475         struct drm_framebuffer *target_fb;
1476         uint64_t fb_location;
1477         uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1478         u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
1479         u32 viewport_w, viewport_h;
1480         int r;
1481         bool bypass_lut = false;
1482         struct drm_format_name_buf format_name;
1483
1484         /* no fb bound */
1485         if (!atomic && !crtc->primary->fb) {
1486                 DRM_DEBUG_KMS("No FB bound\n");
1487                 return 0;
1488         }
1489
1490         if (atomic)
1491                 target_fb = fb;
1492         else
1493                 target_fb = crtc->primary->fb;
1494
1495         obj = target_fb->obj[0];
1496         rbo = gem_to_radeon_bo(obj);
1497         r = radeon_bo_reserve(rbo, false);
1498         if (unlikely(r != 0))
1499                 return r;
1500
1501         /* If atomic, assume fb object is pinned & idle & fenced and
1502          * just update base pointers
1503          */
1504         if (atomic)
1505                 fb_location = radeon_bo_gpu_offset(rbo);
1506         else {
1507                 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1508                 if (unlikely(r != 0)) {
1509                         radeon_bo_unreserve(rbo);
1510                         return -EINVAL;
1511                 }
1512         }
1513         radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1514         radeon_bo_unreserve(rbo);
1515
1516         switch (target_fb->format->format) {
1517         case DRM_FORMAT_C8:
1518                 fb_format =
1519                     AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
1520                     AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
1521                 break;
1522         case DRM_FORMAT_XRGB4444:
1523         case DRM_FORMAT_ARGB4444:
1524                 fb_format =
1525                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1526                     AVIVO_D1GRPH_CONTROL_16BPP_ARGB4444;
1527 #ifdef __BIG_ENDIAN
1528                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1529 #endif
1530                 break;
1531         case DRM_FORMAT_XRGB1555:
1532                 fb_format =
1533                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1534                     AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
1535 #ifdef __BIG_ENDIAN
1536                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1537 #endif
1538                 break;
1539         case DRM_FORMAT_RGB565:
1540                 fb_format =
1541                     AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1542                     AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
1543 #ifdef __BIG_ENDIAN
1544                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1545 #endif
1546                 break;
1547         case DRM_FORMAT_XRGB8888:
1548         case DRM_FORMAT_ARGB8888:
1549                 fb_format =
1550                     AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1551                     AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1552 #ifdef __BIG_ENDIAN
1553                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1554 #endif
1555                 break;
1556         case DRM_FORMAT_XRGB2101010:
1557         case DRM_FORMAT_ARGB2101010:
1558                 fb_format =
1559                     AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1560                     AVIVO_D1GRPH_CONTROL_32BPP_ARGB2101010;
1561 #ifdef __BIG_ENDIAN
1562                 fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1563 #endif
1564                 /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1565                 bypass_lut = true;
1566                 break;
1567         case DRM_FORMAT_XBGR8888:
1568         case DRM_FORMAT_ABGR8888:
1569                 fb_format =
1570                     AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1571                     AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1572                 if (rdev->family >= CHIP_R600)
1573                         fb_swap =
1574                             (R600_D1GRPH_RED_CROSSBAR(R600_D1GRPH_RED_SEL_B) |
1575                              R600_D1GRPH_BLUE_CROSSBAR(R600_D1GRPH_BLUE_SEL_R));
1576                 else /* DCE1 (R5xx) */
1577                         fb_format |= AVIVO_D1GRPH_SWAP_RB;
1578 #ifdef __BIG_ENDIAN
1579                 fb_swap |= R600_D1GRPH_SWAP_ENDIAN_32BIT;
1580 #endif
1581                 break;
1582         default:
1583                 DRM_ERROR("Unsupported screen format %s\n",
1584                           drm_get_format_name(target_fb->format->format, &format_name));
1585                 return -EINVAL;
1586         }
1587
1588         if (rdev->family >= CHIP_R600) {
1589                 if (tiling_flags & RADEON_TILING_MACRO)
1590                         fb_format |= R600_D1GRPH_ARRAY_MODE_2D_TILED_THIN1;
1591                 else if (tiling_flags & RADEON_TILING_MICRO)
1592                         fb_format |= R600_D1GRPH_ARRAY_MODE_1D_TILED_THIN1;
1593         } else {
1594                 if (tiling_flags & RADEON_TILING_MACRO)
1595                         fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
1596
1597                 if (tiling_flags & RADEON_TILING_MICRO)
1598                         fb_format |= AVIVO_D1GRPH_TILED;
1599         }
1600
1601         if (radeon_crtc->crtc_id == 0)
1602                 WREG32(AVIVO_D1VGA_CONTROL, 0);
1603         else
1604                 WREG32(AVIVO_D2VGA_CONTROL, 0);
1605
1606         /* Make sure surface address is update at vertical blank rather than
1607          * horizontal blank
1608          */
1609         WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1610
1611         if (rdev->family >= CHIP_RV770) {
1612                 if (radeon_crtc->crtc_id) {
1613                         WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1614                         WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1615                 } else {
1616                         WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1617                         WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1618                 }
1619         }
1620         WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1621                (u32) fb_location);
1622         WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
1623                radeon_crtc->crtc_offset, (u32) fb_location);
1624         WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1625         if (rdev->family >= CHIP_R600)
1626                 WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1627
1628         /* LUT only has 256 slots for 8 bpc fb. Bypass for > 8 bpc scanout for precision */
1629         WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset,
1630                  (bypass_lut ? AVIVO_LUT_10BIT_BYPASS_EN : 0), ~AVIVO_LUT_10BIT_BYPASS_EN);
1631
1632         if (bypass_lut)
1633                 DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1634
1635         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1636         WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1637         WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
1638         WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1639         WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1640         WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1641
1642         fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1643         WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1644         WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1645
1646         WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1647                target_fb->height);
1648         x &= ~3;
1649         y &= ~1;
1650         WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
1651                (x << 16) | y);
1652         viewport_w = crtc->mode.hdisplay;
1653         viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1654         WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1655                (viewport_w << 16) | viewport_h);
1656
1657         /* set pageflip to happen only at start of vblank interval (front porch) */
1658         WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 3);
1659
1660         if (!atomic && fb && fb != crtc->primary->fb) {
1661                 rbo = gem_to_radeon_bo(fb->obj[0]);
1662                 r = radeon_bo_reserve(rbo, false);
1663                 if (unlikely(r != 0))
1664                         return r;
1665                 radeon_bo_unpin(rbo);
1666                 radeon_bo_unreserve(rbo);
1667         }
1668
1669         /* Bytes per pixel may have changed */
1670         radeon_bandwidth_update(rdev);
1671
1672         return 0;
1673 }
1674
1675 int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
1676                            struct drm_framebuffer *old_fb)
1677 {
1678         struct drm_device *dev = crtc->dev;
1679         struct radeon_device *rdev = dev->dev_private;
1680
1681         if (ASIC_IS_DCE4(rdev))
1682                 return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
1683         else if (ASIC_IS_AVIVO(rdev))
1684                 return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
1685         else
1686                 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
1687 }
1688
1689 int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
1690                                   struct drm_framebuffer *fb,
1691                                   int x, int y, enum mode_set_atomic state)
1692 {
1693         struct drm_device *dev = crtc->dev;
1694         struct radeon_device *rdev = dev->dev_private;
1695
1696         if (ASIC_IS_DCE4(rdev))
1697                 return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
1698         else if (ASIC_IS_AVIVO(rdev))
1699                 return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
1700         else
1701                 return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
1702 }
1703
1704 /* properly set additional regs when using atombios */
1705 static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
1706 {
1707         struct drm_device *dev = crtc->dev;
1708         struct radeon_device *rdev = dev->dev_private;
1709         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1710         u32 disp_merge_cntl;
1711
1712         switch (radeon_crtc->crtc_id) {
1713         case 0:
1714                 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
1715                 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
1716                 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
1717                 break;
1718         case 1:
1719                 disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
1720                 disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
1721                 WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
1722                 WREG32(RADEON_FP_H2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
1723                 WREG32(RADEON_FP_V2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
1724                 break;
1725         }
1726 }
1727
1728 /**
1729  * radeon_get_pll_use_mask - look up a mask of which pplls are in use
1730  *
1731  * @crtc: drm crtc
1732  *
1733  * Returns the mask of which PPLLs (Pixel PLLs) are in use.
1734  */
1735 static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc)
1736 {
1737         struct drm_device *dev = crtc->dev;
1738         struct drm_crtc *test_crtc;
1739         struct radeon_crtc *test_radeon_crtc;
1740         u32 pll_in_use = 0;
1741
1742         list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1743                 if (crtc == test_crtc)
1744                         continue;
1745
1746                 test_radeon_crtc = to_radeon_crtc(test_crtc);
1747                 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1748                         pll_in_use |= (1 << test_radeon_crtc->pll_id);
1749         }
1750         return pll_in_use;
1751 }
1752
1753 /**
1754  * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP
1755  *
1756  * @crtc: drm crtc
1757  *
1758  * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is
1759  * also in DP mode.  For DP, a single PPLL can be used for all DP
1760  * crtcs/encoders.
1761  */
1762 static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
1763 {
1764         struct drm_device *dev = crtc->dev;
1765         struct radeon_device *rdev = dev->dev_private;
1766         struct drm_crtc *test_crtc;
1767         struct radeon_crtc *test_radeon_crtc;
1768
1769         list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1770                 if (crtc == test_crtc)
1771                         continue;
1772                 test_radeon_crtc = to_radeon_crtc(test_crtc);
1773                 if (test_radeon_crtc->encoder &&
1774                     ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1775                         /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1776                         if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1777                             test_radeon_crtc->pll_id == ATOM_PPLL2)
1778                                 continue;
1779                         /* for DP use the same PLL for all */
1780                         if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1781                                 return test_radeon_crtc->pll_id;
1782                 }
1783         }
1784         return ATOM_PPLL_INVALID;
1785 }
1786
1787 /**
1788  * radeon_get_shared_nondp_ppll - return the PPLL used by another non-DP crtc
1789  *
1790  * @crtc: drm crtc
1791  * @encoder: drm encoder
1792  *
1793  * Returns the PPLL (Pixel PLL) used by another non-DP crtc/encoder which can
1794  * be shared (i.e., same clock).
1795  */
1796 static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
1797 {
1798         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1799         struct drm_device *dev = crtc->dev;
1800         struct radeon_device *rdev = dev->dev_private;
1801         struct drm_crtc *test_crtc;
1802         struct radeon_crtc *test_radeon_crtc;
1803         u32 adjusted_clock, test_adjusted_clock;
1804
1805         adjusted_clock = radeon_crtc->adjusted_clock;
1806
1807         if (adjusted_clock == 0)
1808                 return ATOM_PPLL_INVALID;
1809
1810         list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1811                 if (crtc == test_crtc)
1812                         continue;
1813                 test_radeon_crtc = to_radeon_crtc(test_crtc);
1814                 if (test_radeon_crtc->encoder &&
1815                     !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1816                         /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1817                         if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1818                             test_radeon_crtc->pll_id == ATOM_PPLL2)
1819                                 continue;
1820                         /* check if we are already driving this connector with another crtc */
1821                         if (test_radeon_crtc->connector == radeon_crtc->connector) {
1822                                 /* if we are, return that pll */
1823                                 if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1824                                         return test_radeon_crtc->pll_id;
1825                         }
1826                         /* for non-DP check the clock */
1827                         test_adjusted_clock = test_radeon_crtc->adjusted_clock;
1828                         if ((crtc->mode.clock == test_crtc->mode.clock) &&
1829                             (adjusted_clock == test_adjusted_clock) &&
1830                             (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
1831                             (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
1832                                 return test_radeon_crtc->pll_id;
1833                 }
1834         }
1835         return ATOM_PPLL_INVALID;
1836 }
1837
1838 /**
1839  * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc.
1840  *
1841  * @crtc: drm crtc
1842  *
1843  * Returns the PPLL (Pixel PLL) to be used by the crtc.  For DP monitors
1844  * a single PPLL can be used for all DP crtcs/encoders.  For non-DP
1845  * monitors a dedicated PPLL must be used.  If a particular board has
1846  * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
1847  * as there is no need to program the PLL itself.  If we are not able to
1848  * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
1849  * avoid messing up an existing monitor.
1850  *
1851  * Asic specific PLL information
1852  *
1853  * DCE 8.x
1854  * KB/KV
1855  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP)
1856  * CI
1857  * - PPLL0, PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1858  *
1859  * DCE 6.1
1860  * - PPLL2 is only available to UNIPHYA (both DP and non-DP)
1861  * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP)
1862  *
1863  * DCE 6.0
1864  * - PPLL0 is available to all UNIPHY (DP only)
1865  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1866  *
1867  * DCE 5.0
1868  * - DCPLL is available to all UNIPHY (DP only)
1869  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1870  *
1871  * DCE 3.0/4.0/4.1
1872  * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1873  *
1874  */
1875 static int radeon_atom_pick_pll(struct drm_crtc *crtc)
1876 {
1877         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1878         struct drm_device *dev = crtc->dev;
1879         struct radeon_device *rdev = dev->dev_private;
1880         struct radeon_encoder *radeon_encoder =
1881                 to_radeon_encoder(radeon_crtc->encoder);
1882         u32 pll_in_use;
1883         int pll;
1884
1885         if (ASIC_IS_DCE8(rdev)) {
1886                 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1887                         if (rdev->clock.dp_extclk)
1888                                 /* skip PPLL programming if using ext clock */
1889                                 return ATOM_PPLL_INVALID;
1890                         else {
1891                                 /* use the same PPLL for all DP monitors */
1892                                 pll = radeon_get_shared_dp_ppll(crtc);
1893                                 if (pll != ATOM_PPLL_INVALID)
1894                                         return pll;
1895                         }
1896                 } else {
1897                         /* use the same PPLL for all monitors with the same clock */
1898                         pll = radeon_get_shared_nondp_ppll(crtc);
1899                         if (pll != ATOM_PPLL_INVALID)
1900                                 return pll;
1901                 }
1902                 /* otherwise, pick one of the plls */
1903                 if ((rdev->family == CHIP_KABINI) ||
1904                     (rdev->family == CHIP_MULLINS)) {
1905                         /* KB/ML has PPLL1 and PPLL2 */
1906                         pll_in_use = radeon_get_pll_use_mask(crtc);
1907                         if (!(pll_in_use & (1 << ATOM_PPLL2)))
1908                                 return ATOM_PPLL2;
1909                         if (!(pll_in_use & (1 << ATOM_PPLL1)))
1910                                 return ATOM_PPLL1;
1911                         DRM_ERROR("unable to allocate a PPLL\n");
1912                         return ATOM_PPLL_INVALID;
1913                 } else {
1914                         /* CI/KV has PPLL0, PPLL1, and PPLL2 */
1915                         pll_in_use = radeon_get_pll_use_mask(crtc);
1916                         if (!(pll_in_use & (1 << ATOM_PPLL2)))
1917                                 return ATOM_PPLL2;
1918                         if (!(pll_in_use & (1 << ATOM_PPLL1)))
1919                                 return ATOM_PPLL1;
1920                         if (!(pll_in_use & (1 << ATOM_PPLL0)))
1921                                 return ATOM_PPLL0;
1922                         DRM_ERROR("unable to allocate a PPLL\n");
1923                         return ATOM_PPLL_INVALID;
1924                 }
1925         } else if (ASIC_IS_DCE61(rdev)) {
1926                 struct radeon_encoder_atom_dig *dig =
1927                         radeon_encoder->enc_priv;
1928
1929                 if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) &&
1930                     (dig->linkb == false))
1931                         /* UNIPHY A uses PPLL2 */
1932                         return ATOM_PPLL2;
1933                 else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1934                         /* UNIPHY B/C/D/E/F */
1935                         if (rdev->clock.dp_extclk)
1936                                 /* skip PPLL programming if using ext clock */
1937                                 return ATOM_PPLL_INVALID;
1938                         else {
1939                                 /* use the same PPLL for all DP monitors */
1940                                 pll = radeon_get_shared_dp_ppll(crtc);
1941                                 if (pll != ATOM_PPLL_INVALID)
1942                                         return pll;
1943                         }
1944                 } else {
1945                         /* use the same PPLL for all monitors with the same clock */
1946                         pll = radeon_get_shared_nondp_ppll(crtc);
1947                         if (pll != ATOM_PPLL_INVALID)
1948                                 return pll;
1949                 }
1950                 /* UNIPHY B/C/D/E/F */
1951                 pll_in_use = radeon_get_pll_use_mask(crtc);
1952                 if (!(pll_in_use & (1 << ATOM_PPLL0)))
1953                         return ATOM_PPLL0;
1954                 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1955                         return ATOM_PPLL1;
1956                 DRM_ERROR("unable to allocate a PPLL\n");
1957                 return ATOM_PPLL_INVALID;
1958         } else if (ASIC_IS_DCE41(rdev)) {
1959                 /* Don't share PLLs on DCE4.1 chips */
1960                 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1961                         if (rdev->clock.dp_extclk)
1962                                 /* skip PPLL programming if using ext clock */
1963                                 return ATOM_PPLL_INVALID;
1964                 }
1965                 pll_in_use = radeon_get_pll_use_mask(crtc);
1966                 if (!(pll_in_use & (1 << ATOM_PPLL1)))
1967                         return ATOM_PPLL1;
1968                 if (!(pll_in_use & (1 << ATOM_PPLL2)))
1969                         return ATOM_PPLL2;
1970                 DRM_ERROR("unable to allocate a PPLL\n");
1971                 return ATOM_PPLL_INVALID;
1972         } else if (ASIC_IS_DCE4(rdev)) {
1973                 /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock,
1974                  * depending on the asic:
1975                  * DCE4: PPLL or ext clock
1976                  * DCE5: PPLL, DCPLL, or ext clock
1977                  * DCE6: PPLL, PPLL0, or ext clock
1978                  *
1979                  * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip
1980                  * PPLL/DCPLL programming and only program the DP DTO for the
1981                  * crtc virtual pixel clock.
1982                  */
1983                 if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1984                         if (rdev->clock.dp_extclk)
1985                                 /* skip PPLL programming if using ext clock */
1986                                 return ATOM_PPLL_INVALID;
1987                         else if (ASIC_IS_DCE6(rdev))
1988                                 /* use PPLL0 for all DP */
1989                                 return ATOM_PPLL0;
1990                         else if (ASIC_IS_DCE5(rdev))
1991                                 /* use DCPLL for all DP */
1992                                 return ATOM_DCPLL;
1993                         else {
1994                                 /* use the same PPLL for all DP monitors */
1995                                 pll = radeon_get_shared_dp_ppll(crtc);
1996                                 if (pll != ATOM_PPLL_INVALID)
1997                                         return pll;
1998                         }
1999                 } else {
2000                         /* use the same PPLL for all monitors with the same clock */
2001                         pll = radeon_get_shared_nondp_ppll(crtc);
2002                         if (pll != ATOM_PPLL_INVALID)
2003                                 return pll;
2004                 }
2005                 /* all other cases */
2006                 pll_in_use = radeon_get_pll_use_mask(crtc);
2007                 if (!(pll_in_use & (1 << ATOM_PPLL1)))
2008                         return ATOM_PPLL1;
2009                 if (!(pll_in_use & (1 << ATOM_PPLL2)))
2010                         return ATOM_PPLL2;
2011                 DRM_ERROR("unable to allocate a PPLL\n");
2012                 return ATOM_PPLL_INVALID;
2013         } else {
2014                 /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
2015                 /* some atombios (observed in some DCE2/DCE3) code have a bug,
2016                  * the matching btw pll and crtc is done through
2017                  * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the
2018                  * pll (1 or 2) to select which register to write. ie if using
2019                  * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2
2020                  * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to
2021                  * choose which value to write. Which is reverse order from
2022                  * register logic. So only case that works is when pllid is
2023                  * same as crtcid or when both pll and crtc are enabled and
2024                  * both use same clock.
2025                  *
2026                  * So just return crtc id as if crtc and pll were hard linked
2027                  * together even if they aren't
2028                  */
2029                 return radeon_crtc->crtc_id;
2030         }
2031 }
2032
2033 void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
2034 {
2035         /* always set DCPLL */
2036         if (ASIC_IS_DCE6(rdev))
2037                 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2038         else if (ASIC_IS_DCE4(rdev)) {
2039                 struct radeon_atom_ss ss;
2040                 bool ss_enabled = radeon_atombios_get_asic_ss_info(rdev, &ss,
2041                                                                    ASIC_INTERNAL_SS_ON_DCPLL,
2042                                                                    rdev->clock.default_dispclk);
2043                 if (ss_enabled)
2044                         atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
2045                 /* XXX: DCE5, make sure voltage, dispclk is high enough */
2046                 atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2047                 if (ss_enabled)
2048                         atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
2049         }
2050
2051 }
2052
2053 int atombios_crtc_mode_set(struct drm_crtc *crtc,
2054                            struct drm_display_mode *mode,
2055                            struct drm_display_mode *adjusted_mode,
2056                            int x, int y, struct drm_framebuffer *old_fb)
2057 {
2058         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2059         struct drm_device *dev = crtc->dev;
2060         struct radeon_device *rdev = dev->dev_private;
2061         struct radeon_encoder *radeon_encoder =
2062                 to_radeon_encoder(radeon_crtc->encoder);
2063         bool is_tvcv = false;
2064
2065         if (radeon_encoder->active_device &
2066             (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
2067                 is_tvcv = true;
2068
2069         if (!radeon_crtc->adjusted_clock)
2070                 return -EINVAL;
2071
2072         atombios_crtc_set_pll(crtc, adjusted_mode);
2073
2074         if (ASIC_IS_DCE4(rdev))
2075                 atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2076         else if (ASIC_IS_AVIVO(rdev)) {
2077                 if (is_tvcv)
2078                         atombios_crtc_set_timing(crtc, adjusted_mode);
2079                 else
2080                         atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2081         } else {
2082                 atombios_crtc_set_timing(crtc, adjusted_mode);
2083                 if (radeon_crtc->crtc_id == 0)
2084                         atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2085                 radeon_legacy_atom_fixup(crtc);
2086         }
2087         atombios_crtc_set_base(crtc, x, y, old_fb);
2088         atombios_overscan_setup(crtc, mode, adjusted_mode);
2089         atombios_scaler_setup(crtc);
2090         radeon_cursor_reset(crtc);
2091         /* update the hw version fpr dpm */
2092         radeon_crtc->hw_mode = *adjusted_mode;
2093
2094         return 0;
2095 }
2096
2097 static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
2098                                      const struct drm_display_mode *mode,
2099                                      struct drm_display_mode *adjusted_mode)
2100 {
2101         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2102         struct drm_device *dev = crtc->dev;
2103         struct drm_encoder *encoder;
2104
2105         /* assign the encoder to the radeon crtc to avoid repeated lookups later */
2106         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2107                 if (encoder->crtc == crtc) {
2108                         radeon_crtc->encoder = encoder;
2109                         radeon_crtc->connector = radeon_get_connector_for_encoder(encoder);
2110                         break;
2111                 }
2112         }
2113         if ((radeon_crtc->encoder == NULL) || (radeon_crtc->connector == NULL)) {
2114                 radeon_crtc->encoder = NULL;
2115                 radeon_crtc->connector = NULL;
2116                 return false;
2117         }
2118         if (radeon_crtc->encoder) {
2119                 struct radeon_encoder *radeon_encoder =
2120                         to_radeon_encoder(radeon_crtc->encoder);
2121
2122                 radeon_crtc->output_csc = radeon_encoder->output_csc;
2123         }
2124         if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
2125                 return false;
2126         if (!atombios_crtc_prepare_pll(crtc, adjusted_mode))
2127                 return false;
2128         /* pick pll */
2129         radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
2130         /* if we can't get a PPLL for a non-DP encoder, fail */
2131         if ((radeon_crtc->pll_id == ATOM_PPLL_INVALID) &&
2132             !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder)))
2133                 return false;
2134
2135         return true;
2136 }
2137
2138 static void atombios_crtc_prepare(struct drm_crtc *crtc)
2139 {
2140         struct drm_device *dev = crtc->dev;
2141         struct radeon_device *rdev = dev->dev_private;
2142
2143         /* disable crtc pair power gating before programming */
2144         if (ASIC_IS_DCE6(rdev))
2145                 atombios_powergate_crtc(crtc, ATOM_DISABLE);
2146
2147         atombios_lock_crtc(crtc, ATOM_ENABLE);
2148         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2149 }
2150
2151 static void atombios_crtc_commit(struct drm_crtc *crtc)
2152 {
2153         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
2154         atombios_lock_crtc(crtc, ATOM_DISABLE);
2155 }
2156
2157 static void atombios_crtc_disable(struct drm_crtc *crtc)
2158 {
2159         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2160         struct drm_device *dev = crtc->dev;
2161         struct radeon_device *rdev = dev->dev_private;
2162         struct radeon_atom_ss ss;
2163         int i;
2164
2165         atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2166         if (crtc->primary->fb) {
2167                 int r;
2168                 struct radeon_bo *rbo;
2169
2170                 rbo = gem_to_radeon_bo(crtc->primary->fb->obj[0]);
2171                 r = radeon_bo_reserve(rbo, false);
2172                 if (unlikely(r))
2173                         DRM_ERROR("failed to reserve rbo before unpin\n");
2174                 else {
2175                         radeon_bo_unpin(rbo);
2176                         radeon_bo_unreserve(rbo);
2177                 }
2178         }
2179         /* disable the GRPH */
2180         if (ASIC_IS_DCE4(rdev))
2181                 WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2182         else if (ASIC_IS_AVIVO(rdev))
2183                 WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2184
2185         if (ASIC_IS_DCE6(rdev))
2186                 atombios_powergate_crtc(crtc, ATOM_ENABLE);
2187
2188         for (i = 0; i < rdev->num_crtc; i++) {
2189                 if (rdev->mode_info.crtcs[i] &&
2190                     rdev->mode_info.crtcs[i]->enabled &&
2191                     i != radeon_crtc->crtc_id &&
2192                     radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
2193                         /* one other crtc is using this pll don't turn
2194                          * off the pll
2195                          */
2196                         goto done;
2197                 }
2198         }
2199
2200         switch (radeon_crtc->pll_id) {
2201         case ATOM_PPLL1:
2202         case ATOM_PPLL2:
2203                 /* disable the ppll */
2204                 atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2205                                           0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2206                 break;
2207         case ATOM_PPLL0:
2208                 /* disable the ppll */
2209                 if ((rdev->family == CHIP_ARUBA) ||
2210                     (rdev->family == CHIP_KAVERI) ||
2211                     (rdev->family == CHIP_BONAIRE) ||
2212                     (rdev->family == CHIP_HAWAII))
2213                         atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2214                                                   0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2215                 break;
2216         default:
2217                 break;
2218         }
2219 done:
2220         radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2221         radeon_crtc->adjusted_clock = 0;
2222         radeon_crtc->encoder = NULL;
2223         radeon_crtc->connector = NULL;
2224 }
2225
2226 static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
2227         .dpms = atombios_crtc_dpms,
2228         .mode_fixup = atombios_crtc_mode_fixup,
2229         .mode_set = atombios_crtc_mode_set,
2230         .mode_set_base = atombios_crtc_set_base,
2231         .mode_set_base_atomic = atombios_crtc_set_base_atomic,
2232         .prepare = atombios_crtc_prepare,
2233         .commit = atombios_crtc_commit,
2234         .disable = atombios_crtc_disable,
2235 };
2236
2237 void radeon_atombios_init_crtc(struct drm_device *dev,
2238                                struct radeon_crtc *radeon_crtc)
2239 {
2240         struct radeon_device *rdev = dev->dev_private;
2241
2242         if (ASIC_IS_DCE4(rdev)) {
2243                 switch (radeon_crtc->crtc_id) {
2244                 case 0:
2245                 default:
2246                         radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
2247                         break;
2248                 case 1:
2249                         radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
2250                         break;
2251                 case 2:
2252                         radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
2253                         break;
2254                 case 3:
2255                         radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
2256                         break;
2257                 case 4:
2258                         radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
2259                         break;
2260                 case 5:
2261                         radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
2262                         break;
2263                 }
2264         } else {
2265                 if (radeon_crtc->crtc_id == 1)
2266                         radeon_crtc->crtc_offset =
2267                                 AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2268                 else
2269                         radeon_crtc->crtc_offset = 0;
2270         }
2271         radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2272         radeon_crtc->adjusted_clock = 0;
2273         radeon_crtc->encoder = NULL;
2274         radeon_crtc->connector = NULL;
2275         drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2276 }