linux/drivers/gpu/drm/radeon/atombios_crtc.c
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   1/*
   2 * Copyright 2007-8 Advanced Micro Devices, Inc.
   3 * Copyright 2008 Red Hat Inc.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 *
  23 * Authors: Dave Airlie
  24 *          Alex Deucher
  25 */
  26
  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
  38static 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
  83static 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
 167static 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
 184static 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
 200static 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
 216static 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
 226static 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
 251static 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
 267void 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
 301static void
 302atombios_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
 349static 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
 395static 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
 435union 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
 443static 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
 552union adjust_pixel_clock {
 553        ADJUST_DISPLAY_PLL_PS_ALLOCATION v1;
 554        ADJUST_DISPLAY_PLL_PS_ALLOCATION_V3 v3;
 555};
 556
 557static 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
 761union 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 */
 773static 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
 822static 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
 962static 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
1062static 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
1143static 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
1465static 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
1674int 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
1688int 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 */
1704static 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 */
1734static 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 */
1761static 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 */
1795static 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 */
1874static 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
2032void 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
2052int 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
2096static 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
2137static 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
2150static 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
2156static 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        }
2218done:
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
2225static 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};
2235
2236void radeon_atombios_init_crtc(struct drm_device *dev,
2237                               struct radeon_crtc *radeon_crtc)
2238{
2239        struct radeon_device *rdev = dev->dev_private;
2240
2241        if (ASIC_IS_DCE4(rdev)) {
2242                switch (radeon_crtc->crtc_id) {
2243                case 0:
2244                default:
2245                        radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
2246                        break;
2247                case 1:
2248                        radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
2249                        break;
2250                case 2:
2251                        radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
2252                        break;
2253                case 3:
2254                        radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
2255                        break;
2256                case 4:
2257                        radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
2258                        break;
2259                case 5:
2260                        radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
2261                        break;
2262                }
2263        } else {
2264                if (radeon_crtc->crtc_id == 1)
2265                        radeon_crtc->crtc_offset =
2266                                AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2267                else
2268                        radeon_crtc->crtc_offset = 0;
2269        }
2270        radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2271        radeon_crtc->adjusted_clock = 0;
2272        radeon_crtc->encoder = NULL;
2273        radeon_crtc->connector = NULL;
2274        drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2275}
2276