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