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 radeon_framebuffer *radeon_fb;
1149        struct drm_framebuffer *target_fb;
1150        struct drm_gem_object *obj;
1151        struct radeon_bo *rbo;
1152        uint64_t fb_location;
1153        uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1154        unsigned bankw, bankh, mtaspect, tile_split;
1155        u32 fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_NONE);
1156        u32 tmp, viewport_w, viewport_h;
1157        int r;
1158        bool bypass_lut = false;
1159        struct drm_format_name_buf format_name;
1160
1161        /* no fb bound */
1162        if (!atomic && !crtc->primary->fb) {
1163                DRM_DEBUG_KMS("No FB bound\n");
1164                return 0;
1165        }
1166
1167        if (atomic) {
1168                radeon_fb = to_radeon_framebuffer(fb);
1169                target_fb = fb;
1170        }
1171        else {
1172                radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1173                target_fb = crtc->primary->fb;
1174        }
1175
1176        /* If atomic, assume fb object is pinned & idle & fenced and
1177         * just update base pointers
1178         */
1179        obj = radeon_fb->obj;
1180        rbo = gem_to_radeon_bo(obj);
1181        r = radeon_bo_reserve(rbo, false);
1182        if (unlikely(r != 0))
1183                return r;
1184
1185        if (atomic)
1186                fb_location = radeon_bo_gpu_offset(rbo);
1187        else {
1188                r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1189                if (unlikely(r != 0)) {
1190                        radeon_bo_unreserve(rbo);
1191                        return -EINVAL;
1192                }
1193        }
1194
1195        radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1196        radeon_bo_unreserve(rbo);
1197
1198        switch (target_fb->format->format) {
1199        case DRM_FORMAT_C8:
1200                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_8BPP) |
1201                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_INDEXED));
1202                break;
1203        case DRM_FORMAT_XRGB4444:
1204        case DRM_FORMAT_ARGB4444:
1205                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1206                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB4444));
1207#ifdef __BIG_ENDIAN
1208                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1209#endif
1210                break;
1211        case DRM_FORMAT_XRGB1555:
1212        case DRM_FORMAT_ARGB1555:
1213                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1214                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB1555));
1215#ifdef __BIG_ENDIAN
1216                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1217#endif
1218                break;
1219        case DRM_FORMAT_BGRX5551:
1220        case DRM_FORMAT_BGRA5551:
1221                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1222                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA5551));
1223#ifdef __BIG_ENDIAN
1224                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1225#endif
1226                break;
1227        case DRM_FORMAT_RGB565:
1228                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_16BPP) |
1229                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB565));
1230#ifdef __BIG_ENDIAN
1231                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN16);
1232#endif
1233                break;
1234        case DRM_FORMAT_XRGB8888:
1235        case DRM_FORMAT_ARGB8888:
1236                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1237                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB8888));
1238#ifdef __BIG_ENDIAN
1239                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1240#endif
1241                break;
1242        case DRM_FORMAT_XRGB2101010:
1243        case DRM_FORMAT_ARGB2101010:
1244                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1245                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_ARGB2101010));
1246#ifdef __BIG_ENDIAN
1247                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1248#endif
1249                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1250                bypass_lut = true;
1251                break;
1252        case DRM_FORMAT_BGRX1010102:
1253        case DRM_FORMAT_BGRA1010102:
1254                fb_format = (EVERGREEN_GRPH_DEPTH(EVERGREEN_GRPH_DEPTH_32BPP) |
1255                             EVERGREEN_GRPH_FORMAT(EVERGREEN_GRPH_FORMAT_BGRA1010102));
1256#ifdef __BIG_ENDIAN
1257                fb_swap = EVERGREEN_GRPH_ENDIAN_SWAP(EVERGREEN_GRPH_ENDIAN_8IN32);
1258#endif
1259                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1260                bypass_lut = true;
1261                break;
1262        default:
1263                DRM_ERROR("Unsupported screen format %s\n",
1264                          drm_get_format_name(target_fb->format->format, &format_name));
1265                return -EINVAL;
1266        }
1267
1268        if (tiling_flags & RADEON_TILING_MACRO) {
1269                evergreen_tiling_fields(tiling_flags, &bankw, &bankh, &mtaspect, &tile_split);
1270
1271                /* Set NUM_BANKS. */
1272                if (rdev->family >= CHIP_TAHITI) {
1273                        unsigned index, num_banks;
1274
1275                        if (rdev->family >= CHIP_BONAIRE) {
1276                                unsigned tileb, tile_split_bytes;
1277
1278                                /* Calculate the macrotile mode index. */
1279                                tile_split_bytes = 64 << tile_split;
1280                                tileb = 8 * 8 * target_fb->format->cpp[0];
1281                                tileb = min(tile_split_bytes, tileb);
1282
1283                                for (index = 0; tileb > 64; index++)
1284                                        tileb >>= 1;
1285
1286                                if (index >= 16) {
1287                                        DRM_ERROR("Wrong screen bpp (%u) or tile split (%u)\n",
1288                                                  target_fb->format->cpp[0] * 8,
1289                                                  tile_split);
1290                                        return -EINVAL;
1291                                }
1292
1293                                num_banks = (rdev->config.cik.macrotile_mode_array[index] >> 6) & 0x3;
1294                        } else {
1295                                switch (target_fb->format->cpp[0] * 8) {
1296                                case 8:
1297                                        index = 10;
1298                                        break;
1299                                case 16:
1300                                        index = SI_TILE_MODE_COLOR_2D_SCANOUT_16BPP;
1301                                        break;
1302                                default:
1303                                case 32:
1304                                        index = SI_TILE_MODE_COLOR_2D_SCANOUT_32BPP;
1305                                        break;
1306                                }
1307
1308                                num_banks = (rdev->config.si.tile_mode_array[index] >> 20) & 0x3;
1309                        }
1310
1311                        fb_format |= EVERGREEN_GRPH_NUM_BANKS(num_banks);
1312                } else {
1313                        /* NI and older. */
1314                        if (rdev->family >= CHIP_CAYMAN)
1315                                tmp = rdev->config.cayman.tile_config;
1316                        else
1317                                tmp = rdev->config.evergreen.tile_config;
1318
1319                        switch ((tmp & 0xf0) >> 4) {
1320                        case 0: /* 4 banks */
1321                                fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_4_BANK);
1322                                break;
1323                        case 1: /* 8 banks */
1324                        default:
1325                                fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_8_BANK);
1326                                break;
1327                        case 2: /* 16 banks */
1328                                fb_format |= EVERGREEN_GRPH_NUM_BANKS(EVERGREEN_ADDR_SURF_16_BANK);
1329                                break;
1330                        }
1331                }
1332
1333                fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
1334                fb_format |= EVERGREEN_GRPH_TILE_SPLIT(tile_split);
1335                fb_format |= EVERGREEN_GRPH_BANK_WIDTH(bankw);
1336                fb_format |= EVERGREEN_GRPH_BANK_HEIGHT(bankh);
1337                fb_format |= EVERGREEN_GRPH_MACRO_TILE_ASPECT(mtaspect);
1338                if (rdev->family >= CHIP_BONAIRE) {
1339                        /* XXX need to know more about the surface tiling mode */
1340                        fb_format |= CIK_GRPH_MICRO_TILE_MODE(CIK_DISPLAY_MICRO_TILING);
1341                }
1342        } else if (tiling_flags & RADEON_TILING_MICRO)
1343                fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
1344
1345        if (rdev->family >= CHIP_BONAIRE) {
1346                /* Read the pipe config from the 2D TILED SCANOUT mode.
1347                 * It should be the same for the other modes too, but not all
1348                 * modes set the pipe config field. */
1349                u32 pipe_config = (rdev->config.cik.tile_mode_array[10] >> 6) & 0x1f;
1350
1351                fb_format |= CIK_GRPH_PIPE_CONFIG(pipe_config);
1352        } else if ((rdev->family == CHIP_TAHITI) ||
1353                   (rdev->family == CHIP_PITCAIRN))
1354                fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16);
1355        else if ((rdev->family == CHIP_VERDE) ||
1356                 (rdev->family == CHIP_OLAND) ||
1357                 (rdev->family == CHIP_HAINAN)) /* for completeness.  HAINAN has no display hw */
1358                fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16);
1359
1360        switch (radeon_crtc->crtc_id) {
1361        case 0:
1362                WREG32(AVIVO_D1VGA_CONTROL, 0);
1363                break;
1364        case 1:
1365                WREG32(AVIVO_D2VGA_CONTROL, 0);
1366                break;
1367        case 2:
1368                WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1369                break;
1370        case 3:
1371                WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1372                break;
1373        case 4:
1374                WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1375                break;
1376        case 5:
1377                WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1378                break;
1379        default:
1380                break;
1381        }
1382
1383        /* Make sure surface address is updated at vertical blank rather than
1384         * horizontal blank
1385         */
1386        WREG32(EVERGREEN_GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1387
1388        WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1389               upper_32_bits(fb_location));
1390        WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
1391               upper_32_bits(fb_location));
1392        WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1393               (u32)fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1394        WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1395               (u32) fb_location & EVERGREEN_GRPH_SURFACE_ADDRESS_MASK);
1396        WREG32(EVERGREEN_GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1397        WREG32(EVERGREEN_GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1398
1399        /*
1400         * The LUT only has 256 slots for indexing by a 8 bpc fb. Bypass the LUT
1401         * for > 8 bpc scanout to avoid truncation of fb indices to 8 msb's, to
1402         * retain the full precision throughout the pipeline.
1403         */
1404        WREG32_P(EVERGREEN_GRPH_LUT_10BIT_BYPASS_CONTROL + radeon_crtc->crtc_offset,
1405                 (bypass_lut ? EVERGREEN_LUT_10BIT_BYPASS_EN : 0),
1406                 ~EVERGREEN_LUT_10BIT_BYPASS_EN);
1407
1408        if (bypass_lut)
1409                DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1410
1411        WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1412        WREG32(EVERGREEN_GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1413        WREG32(EVERGREEN_GRPH_X_START + radeon_crtc->crtc_offset, 0);
1414        WREG32(EVERGREEN_GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1415        WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1416        WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1417
1418        fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1419        WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1420        WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1421
1422        if (rdev->family >= CHIP_BONAIRE)
1423                WREG32(CIK_LB_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1424                       target_fb->height);
1425        else
1426                WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1427                       target_fb->height);
1428        x &= ~3;
1429        y &= ~1;
1430        WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
1431               (x << 16) | y);
1432        viewport_w = crtc->mode.hdisplay;
1433        viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1434        if ((rdev->family >= CHIP_BONAIRE) &&
1435            (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE))
1436                viewport_h *= 2;
1437        WREG32(EVERGREEN_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1438               (viewport_w << 16) | viewport_h);
1439
1440        /* set pageflip to happen anywhere in vblank interval */
1441        WREG32(EVERGREEN_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 0);
1442
1443        if (!atomic && fb && fb != crtc->primary->fb) {
1444                radeon_fb = to_radeon_framebuffer(fb);
1445                rbo = gem_to_radeon_bo(radeon_fb->obj);
1446                r = radeon_bo_reserve(rbo, false);
1447                if (unlikely(r != 0))
1448                        return r;
1449                radeon_bo_unpin(rbo);
1450                radeon_bo_unreserve(rbo);
1451        }
1452
1453        /* Bytes per pixel may have changed */
1454        radeon_bandwidth_update(rdev);
1455
1456        return 0;
1457}
1458
1459static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
1460                                  struct drm_framebuffer *fb,
1461                                  int x, int y, int atomic)
1462{
1463        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1464        struct drm_device *dev = crtc->dev;
1465        struct radeon_device *rdev = dev->dev_private;
1466        struct radeon_framebuffer *radeon_fb;
1467        struct drm_gem_object *obj;
1468        struct radeon_bo *rbo;
1469        struct drm_framebuffer *target_fb;
1470        uint64_t fb_location;
1471        uint32_t fb_format, fb_pitch_pixels, tiling_flags;
1472        u32 fb_swap = R600_D1GRPH_SWAP_ENDIAN_NONE;
1473        u32 viewport_w, viewport_h;
1474        int r;
1475        bool bypass_lut = false;
1476        struct drm_format_name_buf format_name;
1477
1478        /* no fb bound */
1479        if (!atomic && !crtc->primary->fb) {
1480                DRM_DEBUG_KMS("No FB bound\n");
1481                return 0;
1482        }
1483
1484        if (atomic) {
1485                radeon_fb = to_radeon_framebuffer(fb);
1486                target_fb = fb;
1487        }
1488        else {
1489                radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1490                target_fb = crtc->primary->fb;
1491        }
1492
1493        obj = radeon_fb->obj;
1494        rbo = gem_to_radeon_bo(obj);
1495        r = radeon_bo_reserve(rbo, false);
1496        if (unlikely(r != 0))
1497                return r;
1498
1499        /* If atomic, assume fb object is pinned & idle & fenced and
1500         * just update base pointers
1501         */
1502        if (atomic)
1503                fb_location = radeon_bo_gpu_offset(rbo);
1504        else {
1505                r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &fb_location);
1506                if (unlikely(r != 0)) {
1507                        radeon_bo_unreserve(rbo);
1508                        return -EINVAL;
1509                }
1510        }
1511        radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
1512        radeon_bo_unreserve(rbo);
1513
1514        switch (target_fb->format->format) {
1515        case DRM_FORMAT_C8:
1516                fb_format =
1517                    AVIVO_D1GRPH_CONTROL_DEPTH_8BPP |
1518                    AVIVO_D1GRPH_CONTROL_8BPP_INDEXED;
1519                break;
1520        case DRM_FORMAT_XRGB4444:
1521        case DRM_FORMAT_ARGB4444:
1522                fb_format =
1523                    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1524                    AVIVO_D1GRPH_CONTROL_16BPP_ARGB4444;
1525#ifdef __BIG_ENDIAN
1526                fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1527#endif
1528                break;
1529        case DRM_FORMAT_XRGB1555:
1530                fb_format =
1531                    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1532                    AVIVO_D1GRPH_CONTROL_16BPP_ARGB1555;
1533#ifdef __BIG_ENDIAN
1534                fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1535#endif
1536                break;
1537        case DRM_FORMAT_RGB565:
1538                fb_format =
1539                    AVIVO_D1GRPH_CONTROL_DEPTH_16BPP |
1540                    AVIVO_D1GRPH_CONTROL_16BPP_RGB565;
1541#ifdef __BIG_ENDIAN
1542                fb_swap = R600_D1GRPH_SWAP_ENDIAN_16BIT;
1543#endif
1544                break;
1545        case DRM_FORMAT_XRGB8888:
1546        case DRM_FORMAT_ARGB8888:
1547                fb_format =
1548                    AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1549                    AVIVO_D1GRPH_CONTROL_32BPP_ARGB8888;
1550#ifdef __BIG_ENDIAN
1551                fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1552#endif
1553                break;
1554        case DRM_FORMAT_XRGB2101010:
1555        case DRM_FORMAT_ARGB2101010:
1556                fb_format =
1557                    AVIVO_D1GRPH_CONTROL_DEPTH_32BPP |
1558                    AVIVO_D1GRPH_CONTROL_32BPP_ARGB2101010;
1559#ifdef __BIG_ENDIAN
1560                fb_swap = R600_D1GRPH_SWAP_ENDIAN_32BIT;
1561#endif
1562                /* Greater 8 bpc fb needs to bypass hw-lut to retain precision */
1563                bypass_lut = true;
1564                break;
1565        default:
1566                DRM_ERROR("Unsupported screen format %s\n",
1567                          drm_get_format_name(target_fb->format->format, &format_name));
1568                return -EINVAL;
1569        }
1570
1571        if (rdev->family >= CHIP_R600) {
1572                if (tiling_flags & RADEON_TILING_MACRO)
1573                        fb_format |= R600_D1GRPH_ARRAY_MODE_2D_TILED_THIN1;
1574                else if (tiling_flags & RADEON_TILING_MICRO)
1575                        fb_format |= R600_D1GRPH_ARRAY_MODE_1D_TILED_THIN1;
1576        } else {
1577                if (tiling_flags & RADEON_TILING_MACRO)
1578                        fb_format |= AVIVO_D1GRPH_MACRO_ADDRESS_MODE;
1579
1580                if (tiling_flags & RADEON_TILING_MICRO)
1581                        fb_format |= AVIVO_D1GRPH_TILED;
1582        }
1583
1584        if (radeon_crtc->crtc_id == 0)
1585                WREG32(AVIVO_D1VGA_CONTROL, 0);
1586        else
1587                WREG32(AVIVO_D2VGA_CONTROL, 0);
1588
1589        /* Make sure surface address is update at vertical blank rather than
1590         * horizontal blank
1591         */
1592        WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset, 0);
1593
1594        if (rdev->family >= CHIP_RV770) {
1595                if (radeon_crtc->crtc_id) {
1596                        WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1597                        WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1598                } else {
1599                        WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1600                        WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(fb_location));
1601                }
1602        }
1603        WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
1604               (u32) fb_location);
1605        WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS +
1606               radeon_crtc->crtc_offset, (u32) fb_location);
1607        WREG32(AVIVO_D1GRPH_CONTROL + radeon_crtc->crtc_offset, fb_format);
1608        if (rdev->family >= CHIP_R600)
1609                WREG32(R600_D1GRPH_SWAP_CONTROL + radeon_crtc->crtc_offset, fb_swap);
1610
1611        /* LUT only has 256 slots for 8 bpc fb. Bypass for > 8 bpc scanout for precision */
1612        WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset,
1613                 (bypass_lut ? AVIVO_LUT_10BIT_BYPASS_EN : 0), ~AVIVO_LUT_10BIT_BYPASS_EN);
1614
1615        if (bypass_lut)
1616                DRM_DEBUG_KMS("Bypassing hardware LUT due to 10 bit fb scanout.\n");
1617
1618        WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_X + radeon_crtc->crtc_offset, 0);
1619        WREG32(AVIVO_D1GRPH_SURFACE_OFFSET_Y + radeon_crtc->crtc_offset, 0);
1620        WREG32(AVIVO_D1GRPH_X_START + radeon_crtc->crtc_offset, 0);
1621        WREG32(AVIVO_D1GRPH_Y_START + radeon_crtc->crtc_offset, 0);
1622        WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
1623        WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
1624
1625        fb_pitch_pixels = target_fb->pitches[0] / target_fb->format->cpp[0];
1626        WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
1627        WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
1628
1629        WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
1630               target_fb->height);
1631        x &= ~3;
1632        y &= ~1;
1633        WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,
1634               (x << 16) | y);
1635        viewport_w = crtc->mode.hdisplay;
1636        viewport_h = (crtc->mode.vdisplay + 1) & ~1;
1637        WREG32(AVIVO_D1MODE_VIEWPORT_SIZE + radeon_crtc->crtc_offset,
1638               (viewport_w << 16) | viewport_h);
1639
1640        /* set pageflip to happen only at start of vblank interval (front porch) */
1641        WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + radeon_crtc->crtc_offset, 3);
1642
1643        if (!atomic && fb && fb != crtc->primary->fb) {
1644                radeon_fb = to_radeon_framebuffer(fb);
1645                rbo = gem_to_radeon_bo(radeon_fb->obj);
1646                r = radeon_bo_reserve(rbo, false);
1647                if (unlikely(r != 0))
1648                        return r;
1649                radeon_bo_unpin(rbo);
1650                radeon_bo_unreserve(rbo);
1651        }
1652
1653        /* Bytes per pixel may have changed */
1654        radeon_bandwidth_update(rdev);
1655
1656        return 0;
1657}
1658
1659int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
1660                           struct drm_framebuffer *old_fb)
1661{
1662        struct drm_device *dev = crtc->dev;
1663        struct radeon_device *rdev = dev->dev_private;
1664
1665        if (ASIC_IS_DCE4(rdev))
1666                return dce4_crtc_do_set_base(crtc, old_fb, x, y, 0);
1667        else if (ASIC_IS_AVIVO(rdev))
1668                return avivo_crtc_do_set_base(crtc, old_fb, x, y, 0);
1669        else
1670                return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
1671}
1672
1673int atombios_crtc_set_base_atomic(struct drm_crtc *crtc,
1674                                  struct drm_framebuffer *fb,
1675                                  int x, int y, enum mode_set_atomic state)
1676{
1677        struct drm_device *dev = crtc->dev;
1678        struct radeon_device *rdev = dev->dev_private;
1679
1680        if (ASIC_IS_DCE4(rdev))
1681                return dce4_crtc_do_set_base(crtc, fb, x, y, 1);
1682        else if (ASIC_IS_AVIVO(rdev))
1683                return avivo_crtc_do_set_base(crtc, fb, x, y, 1);
1684        else
1685                return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
1686}
1687
1688/* properly set additional regs when using atombios */
1689static void radeon_legacy_atom_fixup(struct drm_crtc *crtc)
1690{
1691        struct drm_device *dev = crtc->dev;
1692        struct radeon_device *rdev = dev->dev_private;
1693        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1694        u32 disp_merge_cntl;
1695
1696        switch (radeon_crtc->crtc_id) {
1697        case 0:
1698                disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
1699                disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
1700                WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
1701                break;
1702        case 1:
1703                disp_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
1704                disp_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
1705                WREG32(RADEON_DISP2_MERGE_CNTL, disp_merge_cntl);
1706                WREG32(RADEON_FP_H2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_H_SYNC_STRT_WID));
1707                WREG32(RADEON_FP_V2_SYNC_STRT_WID,   RREG32(RADEON_CRTC2_V_SYNC_STRT_WID));
1708                break;
1709        }
1710}
1711
1712/**
1713 * radeon_get_pll_use_mask - look up a mask of which pplls are in use
1714 *
1715 * @crtc: drm crtc
1716 *
1717 * Returns the mask of which PPLLs (Pixel PLLs) are in use.
1718 */
1719static u32 radeon_get_pll_use_mask(struct drm_crtc *crtc)
1720{
1721        struct drm_device *dev = crtc->dev;
1722        struct drm_crtc *test_crtc;
1723        struct radeon_crtc *test_radeon_crtc;
1724        u32 pll_in_use = 0;
1725
1726        list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1727                if (crtc == test_crtc)
1728                        continue;
1729
1730                test_radeon_crtc = to_radeon_crtc(test_crtc);
1731                if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1732                        pll_in_use |= (1 << test_radeon_crtc->pll_id);
1733        }
1734        return pll_in_use;
1735}
1736
1737/**
1738 * radeon_get_shared_dp_ppll - return the PPLL used by another crtc for DP
1739 *
1740 * @crtc: drm crtc
1741 *
1742 * Returns the PPLL (Pixel PLL) used by another crtc/encoder which is
1743 * also in DP mode.  For DP, a single PPLL can be used for all DP
1744 * crtcs/encoders.
1745 */
1746static int radeon_get_shared_dp_ppll(struct drm_crtc *crtc)
1747{
1748        struct drm_device *dev = crtc->dev;
1749        struct radeon_device *rdev = dev->dev_private;
1750        struct drm_crtc *test_crtc;
1751        struct radeon_crtc *test_radeon_crtc;
1752
1753        list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1754                if (crtc == test_crtc)
1755                        continue;
1756                test_radeon_crtc = to_radeon_crtc(test_crtc);
1757                if (test_radeon_crtc->encoder &&
1758                    ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1759                        /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1760                        if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1761                            test_radeon_crtc->pll_id == ATOM_PPLL2)
1762                                continue;
1763                        /* for DP use the same PLL for all */
1764                        if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1765                                return test_radeon_crtc->pll_id;
1766                }
1767        }
1768        return ATOM_PPLL_INVALID;
1769}
1770
1771/**
1772 * radeon_get_shared_nondp_ppll - return the PPLL used by another non-DP crtc
1773 *
1774 * @crtc: drm crtc
1775 * @encoder: drm encoder
1776 *
1777 * Returns the PPLL (Pixel PLL) used by another non-DP crtc/encoder which can
1778 * be shared (i.e., same clock).
1779 */
1780static int radeon_get_shared_nondp_ppll(struct drm_crtc *crtc)
1781{
1782        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1783        struct drm_device *dev = crtc->dev;
1784        struct radeon_device *rdev = dev->dev_private;
1785        struct drm_crtc *test_crtc;
1786        struct radeon_crtc *test_radeon_crtc;
1787        u32 adjusted_clock, test_adjusted_clock;
1788
1789        adjusted_clock = radeon_crtc->adjusted_clock;
1790
1791        if (adjusted_clock == 0)
1792                return ATOM_PPLL_INVALID;
1793
1794        list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) {
1795                if (crtc == test_crtc)
1796                        continue;
1797                test_radeon_crtc = to_radeon_crtc(test_crtc);
1798                if (test_radeon_crtc->encoder &&
1799                    !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_radeon_crtc->encoder))) {
1800                        /* PPLL2 is exclusive to UNIPHYA on DCE61 */
1801                        if (ASIC_IS_DCE61(rdev) && !ASIC_IS_DCE8(rdev) &&
1802                            test_radeon_crtc->pll_id == ATOM_PPLL2)
1803                                continue;
1804                        /* check if we are already driving this connector with another crtc */
1805                        if (test_radeon_crtc->connector == radeon_crtc->connector) {
1806                                /* if we are, return that pll */
1807                                if (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID)
1808                                        return test_radeon_crtc->pll_id;
1809                        }
1810                        /* for non-DP check the clock */
1811                        test_adjusted_clock = test_radeon_crtc->adjusted_clock;
1812                        if ((crtc->mode.clock == test_crtc->mode.clock) &&
1813                            (adjusted_clock == test_adjusted_clock) &&
1814                            (radeon_crtc->ss_enabled == test_radeon_crtc->ss_enabled) &&
1815                            (test_radeon_crtc->pll_id != ATOM_PPLL_INVALID))
1816                                return test_radeon_crtc->pll_id;
1817                }
1818        }
1819        return ATOM_PPLL_INVALID;
1820}
1821
1822/**
1823 * radeon_atom_pick_pll - Allocate a PPLL for use by the crtc.
1824 *
1825 * @crtc: drm crtc
1826 *
1827 * Returns the PPLL (Pixel PLL) to be used by the crtc.  For DP monitors
1828 * a single PPLL can be used for all DP crtcs/encoders.  For non-DP
1829 * monitors a dedicated PPLL must be used.  If a particular board has
1830 * an external DP PLL, return ATOM_PPLL_INVALID to skip PLL programming
1831 * as there is no need to program the PLL itself.  If we are not able to
1832 * allocate a PLL, return ATOM_PPLL_INVALID to skip PLL programming to
1833 * avoid messing up an existing monitor.
1834 *
1835 * Asic specific PLL information
1836 *
1837 * DCE 8.x
1838 * KB/KV
1839 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP)
1840 * CI
1841 * - PPLL0, PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1842 *
1843 * DCE 6.1
1844 * - PPLL2 is only available to UNIPHYA (both DP and non-DP)
1845 * - PPLL0, PPLL1 are available for UNIPHYB/C/D/E/F (both DP and non-DP)
1846 *
1847 * DCE 6.0
1848 * - PPLL0 is available to all UNIPHY (DP only)
1849 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1850 *
1851 * DCE 5.0
1852 * - DCPLL is available to all UNIPHY (DP only)
1853 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1854 *
1855 * DCE 3.0/4.0/4.1
1856 * - PPLL1, PPLL2 are available for all UNIPHY (both DP and non-DP) and DAC
1857 *
1858 */
1859static int radeon_atom_pick_pll(struct drm_crtc *crtc)
1860{
1861        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1862        struct drm_device *dev = crtc->dev;
1863        struct radeon_device *rdev = dev->dev_private;
1864        struct radeon_encoder *radeon_encoder =
1865                to_radeon_encoder(radeon_crtc->encoder);
1866        u32 pll_in_use;
1867        int pll;
1868
1869        if (ASIC_IS_DCE8(rdev)) {
1870                if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1871                        if (rdev->clock.dp_extclk)
1872                                /* skip PPLL programming if using ext clock */
1873                                return ATOM_PPLL_INVALID;
1874                        else {
1875                                /* use the same PPLL for all DP monitors */
1876                                pll = radeon_get_shared_dp_ppll(crtc);
1877                                if (pll != ATOM_PPLL_INVALID)
1878                                        return pll;
1879                        }
1880                } else {
1881                        /* use the same PPLL for all monitors with the same clock */
1882                        pll = radeon_get_shared_nondp_ppll(crtc);
1883                        if (pll != ATOM_PPLL_INVALID)
1884                                return pll;
1885                }
1886                /* otherwise, pick one of the plls */
1887                if ((rdev->family == CHIP_KABINI) ||
1888                    (rdev->family == CHIP_MULLINS)) {
1889                        /* KB/ML has PPLL1 and PPLL2 */
1890                        pll_in_use = radeon_get_pll_use_mask(crtc);
1891                        if (!(pll_in_use & (1 << ATOM_PPLL2)))
1892                                return ATOM_PPLL2;
1893                        if (!(pll_in_use & (1 << ATOM_PPLL1)))
1894                                return ATOM_PPLL1;
1895                        DRM_ERROR("unable to allocate a PPLL\n");
1896                        return ATOM_PPLL_INVALID;
1897                } else {
1898                        /* CI/KV has PPLL0, PPLL1, and PPLL2 */
1899                        pll_in_use = radeon_get_pll_use_mask(crtc);
1900                        if (!(pll_in_use & (1 << ATOM_PPLL2)))
1901                                return ATOM_PPLL2;
1902                        if (!(pll_in_use & (1 << ATOM_PPLL1)))
1903                                return ATOM_PPLL1;
1904                        if (!(pll_in_use & (1 << ATOM_PPLL0)))
1905                                return ATOM_PPLL0;
1906                        DRM_ERROR("unable to allocate a PPLL\n");
1907                        return ATOM_PPLL_INVALID;
1908                }
1909        } else if (ASIC_IS_DCE61(rdev)) {
1910                struct radeon_encoder_atom_dig *dig =
1911                        radeon_encoder->enc_priv;
1912
1913                if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_UNIPHY) &&
1914                    (dig->linkb == false))
1915                        /* UNIPHY A uses PPLL2 */
1916                        return ATOM_PPLL2;
1917                else if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1918                        /* UNIPHY B/C/D/E/F */
1919                        if (rdev->clock.dp_extclk)
1920                                /* skip PPLL programming if using ext clock */
1921                                return ATOM_PPLL_INVALID;
1922                        else {
1923                                /* use the same PPLL for all DP monitors */
1924                                pll = radeon_get_shared_dp_ppll(crtc);
1925                                if (pll != ATOM_PPLL_INVALID)
1926                                        return pll;
1927                        }
1928                } else {
1929                        /* use the same PPLL for all monitors with the same clock */
1930                        pll = radeon_get_shared_nondp_ppll(crtc);
1931                        if (pll != ATOM_PPLL_INVALID)
1932                                return pll;
1933                }
1934                /* UNIPHY B/C/D/E/F */
1935                pll_in_use = radeon_get_pll_use_mask(crtc);
1936                if (!(pll_in_use & (1 << ATOM_PPLL0)))
1937                        return ATOM_PPLL0;
1938                if (!(pll_in_use & (1 << ATOM_PPLL1)))
1939                        return ATOM_PPLL1;
1940                DRM_ERROR("unable to allocate a PPLL\n");
1941                return ATOM_PPLL_INVALID;
1942        } else if (ASIC_IS_DCE41(rdev)) {
1943                /* Don't share PLLs on DCE4.1 chips */
1944                if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1945                        if (rdev->clock.dp_extclk)
1946                                /* skip PPLL programming if using ext clock */
1947                                return ATOM_PPLL_INVALID;
1948                }
1949                pll_in_use = radeon_get_pll_use_mask(crtc);
1950                if (!(pll_in_use & (1 << ATOM_PPLL1)))
1951                        return ATOM_PPLL1;
1952                if (!(pll_in_use & (1 << ATOM_PPLL2)))
1953                        return ATOM_PPLL2;
1954                DRM_ERROR("unable to allocate a PPLL\n");
1955                return ATOM_PPLL_INVALID;
1956        } else if (ASIC_IS_DCE4(rdev)) {
1957                /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock,
1958                 * depending on the asic:
1959                 * DCE4: PPLL or ext clock
1960                 * DCE5: PPLL, DCPLL, or ext clock
1961                 * DCE6: PPLL, PPLL0, or ext clock
1962                 *
1963                 * Setting ATOM_PPLL_INVALID will cause SetPixelClock to skip
1964                 * PPLL/DCPLL programming and only program the DP DTO for the
1965                 * crtc virtual pixel clock.
1966                 */
1967                if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder))) {
1968                        if (rdev->clock.dp_extclk)
1969                                /* skip PPLL programming if using ext clock */
1970                                return ATOM_PPLL_INVALID;
1971                        else if (ASIC_IS_DCE6(rdev))
1972                                /* use PPLL0 for all DP */
1973                                return ATOM_PPLL0;
1974                        else if (ASIC_IS_DCE5(rdev))
1975                                /* use DCPLL for all DP */
1976                                return ATOM_DCPLL;
1977                        else {
1978                                /* use the same PPLL for all DP monitors */
1979                                pll = radeon_get_shared_dp_ppll(crtc);
1980                                if (pll != ATOM_PPLL_INVALID)
1981                                        return pll;
1982                        }
1983                } else {
1984                        /* use the same PPLL for all monitors with the same clock */
1985                        pll = radeon_get_shared_nondp_ppll(crtc);
1986                        if (pll != ATOM_PPLL_INVALID)
1987                                return pll;
1988                }
1989                /* all other cases */
1990                pll_in_use = radeon_get_pll_use_mask(crtc);
1991                if (!(pll_in_use & (1 << ATOM_PPLL1)))
1992                        return ATOM_PPLL1;
1993                if (!(pll_in_use & (1 << ATOM_PPLL2)))
1994                        return ATOM_PPLL2;
1995                DRM_ERROR("unable to allocate a PPLL\n");
1996                return ATOM_PPLL_INVALID;
1997        } else {
1998                /* on pre-R5xx asics, the crtc to pll mapping is hardcoded */
1999                /* some atombios (observed in some DCE2/DCE3) code have a bug,
2000                 * the matching btw pll and crtc is done through
2001                 * PCLK_CRTC[1|2]_CNTL (0x480/0x484) but atombios code use the
2002                 * pll (1 or 2) to select which register to write. ie if using
2003                 * pll1 it will use PCLK_CRTC1_CNTL (0x480) and if using pll2
2004                 * it will use PCLK_CRTC2_CNTL (0x484), it then use crtc id to
2005                 * choose which value to write. Which is reverse order from
2006                 * register logic. So only case that works is when pllid is
2007                 * same as crtcid or when both pll and crtc are enabled and
2008                 * both use same clock.
2009                 *
2010                 * So just return crtc id as if crtc and pll were hard linked
2011                 * together even if they aren't
2012                 */
2013                return radeon_crtc->crtc_id;
2014        }
2015}
2016
2017void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev)
2018{
2019        /* always set DCPLL */
2020        if (ASIC_IS_DCE6(rdev))
2021                atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2022        else if (ASIC_IS_DCE4(rdev)) {
2023                struct radeon_atom_ss ss;
2024                bool ss_enabled = radeon_atombios_get_asic_ss_info(rdev, &ss,
2025                                                                   ASIC_INTERNAL_SS_ON_DCPLL,
2026                                                                   rdev->clock.default_dispclk);
2027                if (ss_enabled)
2028                        atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
2029                /* XXX: DCE5, make sure voltage, dispclk is high enough */
2030                atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
2031                if (ss_enabled)
2032                        atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
2033        }
2034
2035}
2036
2037int atombios_crtc_mode_set(struct drm_crtc *crtc,
2038                           struct drm_display_mode *mode,
2039                           struct drm_display_mode *adjusted_mode,
2040                           int x, int y, struct drm_framebuffer *old_fb)
2041{
2042        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2043        struct drm_device *dev = crtc->dev;
2044        struct radeon_device *rdev = dev->dev_private;
2045        struct radeon_encoder *radeon_encoder =
2046                to_radeon_encoder(radeon_crtc->encoder);
2047        bool is_tvcv = false;
2048
2049        if (radeon_encoder->active_device &
2050            (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))
2051                is_tvcv = true;
2052
2053        if (!radeon_crtc->adjusted_clock)
2054                return -EINVAL;
2055
2056        atombios_crtc_set_pll(crtc, adjusted_mode);
2057
2058        if (ASIC_IS_DCE4(rdev))
2059                atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2060        else if (ASIC_IS_AVIVO(rdev)) {
2061                if (is_tvcv)
2062                        atombios_crtc_set_timing(crtc, adjusted_mode);
2063                else
2064                        atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2065        } else {
2066                atombios_crtc_set_timing(crtc, adjusted_mode);
2067                if (radeon_crtc->crtc_id == 0)
2068                        atombios_set_crtc_dtd_timing(crtc, adjusted_mode);
2069                radeon_legacy_atom_fixup(crtc);
2070        }
2071        atombios_crtc_set_base(crtc, x, y, old_fb);
2072        atombios_overscan_setup(crtc, mode, adjusted_mode);
2073        atombios_scaler_setup(crtc);
2074        radeon_cursor_reset(crtc);
2075        /* update the hw version fpr dpm */
2076        radeon_crtc->hw_mode = *adjusted_mode;
2077
2078        return 0;
2079}
2080
2081static bool atombios_crtc_mode_fixup(struct drm_crtc *crtc,
2082                                     const struct drm_display_mode *mode,
2083                                     struct drm_display_mode *adjusted_mode)
2084{
2085        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2086        struct drm_device *dev = crtc->dev;
2087        struct drm_encoder *encoder;
2088
2089        /* assign the encoder to the radeon crtc to avoid repeated lookups later */
2090        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
2091                if (encoder->crtc == crtc) {
2092                        radeon_crtc->encoder = encoder;
2093                        radeon_crtc->connector = radeon_get_connector_for_encoder(encoder);
2094                        break;
2095                }
2096        }
2097        if ((radeon_crtc->encoder == NULL) || (radeon_crtc->connector == NULL)) {
2098                radeon_crtc->encoder = NULL;
2099                radeon_crtc->connector = NULL;
2100                return false;
2101        }
2102        if (radeon_crtc->encoder) {
2103                struct radeon_encoder *radeon_encoder =
2104                        to_radeon_encoder(radeon_crtc->encoder);
2105
2106                radeon_crtc->output_csc = radeon_encoder->output_csc;
2107        }
2108        if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
2109                return false;
2110        if (!atombios_crtc_prepare_pll(crtc, adjusted_mode))
2111                return false;
2112        /* pick pll */
2113        radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
2114        /* if we can't get a PPLL for a non-DP encoder, fail */
2115        if ((radeon_crtc->pll_id == ATOM_PPLL_INVALID) &&
2116            !ENCODER_MODE_IS_DP(atombios_get_encoder_mode(radeon_crtc->encoder)))
2117                return false;
2118
2119        return true;
2120}
2121
2122static void atombios_crtc_prepare(struct drm_crtc *crtc)
2123{
2124        struct drm_device *dev = crtc->dev;
2125        struct radeon_device *rdev = dev->dev_private;
2126
2127        /* disable crtc pair power gating before programming */
2128        if (ASIC_IS_DCE6(rdev))
2129                atombios_powergate_crtc(crtc, ATOM_DISABLE);
2130
2131        atombios_lock_crtc(crtc, ATOM_ENABLE);
2132        atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2133}
2134
2135static void atombios_crtc_commit(struct drm_crtc *crtc)
2136{
2137        atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
2138        atombios_lock_crtc(crtc, ATOM_DISABLE);
2139}
2140
2141static void atombios_crtc_disable(struct drm_crtc *crtc)
2142{
2143        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
2144        struct drm_device *dev = crtc->dev;
2145        struct radeon_device *rdev = dev->dev_private;
2146        struct radeon_atom_ss ss;
2147        int i;
2148
2149        atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
2150        if (crtc->primary->fb) {
2151                int r;
2152                struct radeon_framebuffer *radeon_fb;
2153                struct radeon_bo *rbo;
2154
2155                radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
2156                rbo = gem_to_radeon_bo(radeon_fb->obj);
2157                r = radeon_bo_reserve(rbo, false);
2158                if (unlikely(r))
2159                        DRM_ERROR("failed to reserve rbo before unpin\n");
2160                else {
2161                        radeon_bo_unpin(rbo);
2162                        radeon_bo_unreserve(rbo);
2163                }
2164        }
2165        /* disable the GRPH */
2166        if (ASIC_IS_DCE4(rdev))
2167                WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2168        else if (ASIC_IS_AVIVO(rdev))
2169                WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 0);
2170
2171        if (ASIC_IS_DCE6(rdev))
2172                atombios_powergate_crtc(crtc, ATOM_ENABLE);
2173
2174        for (i = 0; i < rdev->num_crtc; i++) {
2175                if (rdev->mode_info.crtcs[i] &&
2176                    rdev->mode_info.crtcs[i]->enabled &&
2177                    i != radeon_crtc->crtc_id &&
2178                    radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
2179                        /* one other crtc is using this pll don't turn
2180                         * off the pll
2181                         */
2182                        goto done;
2183                }
2184        }
2185
2186        switch (radeon_crtc->pll_id) {
2187        case ATOM_PPLL1:
2188        case ATOM_PPLL2:
2189                /* disable the ppll */
2190                atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2191                                          0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2192                break;
2193        case ATOM_PPLL0:
2194                /* disable the ppll */
2195                if ((rdev->family == CHIP_ARUBA) ||
2196                    (rdev->family == CHIP_KAVERI) ||
2197                    (rdev->family == CHIP_BONAIRE) ||
2198                    (rdev->family == CHIP_HAWAII))
2199                        atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
2200                                                  0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
2201                break;
2202        default:
2203                break;
2204        }
2205done:
2206        radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2207        radeon_crtc->adjusted_clock = 0;
2208        radeon_crtc->encoder = NULL;
2209        radeon_crtc->connector = NULL;
2210}
2211
2212static const struct drm_crtc_helper_funcs atombios_helper_funcs = {
2213        .dpms = atombios_crtc_dpms,
2214        .mode_fixup = atombios_crtc_mode_fixup,
2215        .mode_set = atombios_crtc_mode_set,
2216        .mode_set_base = atombios_crtc_set_base,
2217        .mode_set_base_atomic = atombios_crtc_set_base_atomic,
2218        .prepare = atombios_crtc_prepare,
2219        .commit = atombios_crtc_commit,
2220        .disable = atombios_crtc_disable,
2221};
2222
2223void radeon_atombios_init_crtc(struct drm_device *dev,
2224                               struct radeon_crtc *radeon_crtc)
2225{
2226        struct radeon_device *rdev = dev->dev_private;
2227
2228        if (ASIC_IS_DCE4(rdev)) {
2229                switch (radeon_crtc->crtc_id) {
2230                case 0:
2231                default:
2232                        radeon_crtc->crtc_offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
2233                        break;
2234                case 1:
2235                        radeon_crtc->crtc_offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
2236                        break;
2237                case 2:
2238                        radeon_crtc->crtc_offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
2239                        break;
2240                case 3:
2241                        radeon_crtc->crtc_offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
2242                        break;
2243                case 4:
2244                        radeon_crtc->crtc_offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
2245                        break;
2246                case 5:
2247                        radeon_crtc->crtc_offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
2248                        break;
2249                }
2250        } else {
2251                if (radeon_crtc->crtc_id == 1)
2252                        radeon_crtc->crtc_offset =
2253                                AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL;
2254                else
2255                        radeon_crtc->crtc_offset = 0;
2256        }
2257        radeon_crtc->pll_id = ATOM_PPLL_INVALID;
2258        radeon_crtc->adjusted_clock = 0;
2259        radeon_crtc->encoder = NULL;
2260        radeon_crtc->connector = NULL;
2261        drm_crtc_helper_add(&radeon_crtc->base, &atombios_helper_funcs);
2262}
2263