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