drivers/gpu/drm/radeon/evergreen.c

   1 /*
   2  * Copyright 2010 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Alex Deucher
  23  */
  24 #include <linux/firmware.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/slab.h>
  27 #include "drmP.h"
  28 #include "radeon.h"
  29 #include "radeon_asic.h"
  30 #include "radeon_drm.h"
  31 #include "evergreend.h"
  32 #include "atom.h"
  33 #include "avivod.h"
  34 #include "evergreen_reg.h"
  35 #include "evergreen_blit_shaders.h"
  36
  37 #define EVERGREEN_PFP_UCODE_SIZE 1120
  38 #define EVERGREEN_PM4_UCODE_SIZE 1376
  39
  40 static void evergreen_gpu_init(struct radeon_device *rdev);
  41 void evergreen_fini(struct radeon_device *rdev);
  42 static void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
  43
  44 void evergreen_pre_page_flip(struct radeon_device *rdev, int crtc)
  45 {
  46         /* enable the pflip int */
  47         radeon_irq_kms_pflip_irq_get(rdev, crtc);
  48 }
  49
  50 void evergreen_post_page_flip(struct radeon_device *rdev, int crtc)
  51 {
  52         /* disable the pflip int */
  53         radeon_irq_kms_pflip_irq_put(rdev, crtc);
  54 }
  55
  56 u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
  57 {
  58         struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
  59         u32 tmp = RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset);
  60
  61         /* Lock the graphics update lock */
  62         tmp |= EVERGREEN_GRPH_UPDATE_LOCK;
  63         WREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
  64
  65         /* update the scanout addresses */
  66         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
  67                upper_32_bits(crtc_base));
  68         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
  69                (u32)crtc_base);
  70
  71         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + radeon_crtc->crtc_offset,
  72                upper_32_bits(crtc_base));
  73         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
  74                (u32)crtc_base);
  75
  76         /* Wait for update_pending to go high. */
  77         while (!(RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING));
  78         DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
  79
  80         /* Unlock the lock, so double-buffering can take place inside vblank */
  81         tmp &= ~EVERGREEN_GRPH_UPDATE_LOCK;
  82         WREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
  83
  84         /* Return current update_pending status: */
  85         return RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING;
  86 }
  87
  88 /* get temperature in millidegrees */
  89 int evergreen_get_temp(struct radeon_device *rdev)
  90 {
  91         u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
  92                 ASIC_T_SHIFT;
  93         u32 actual_temp = 0;
  94
  95         if (temp & 0x400)
  96                 actual_temp = -256;
  97         else if (temp & 0x200)
  98                 actual_temp = 255;
  99         else if (temp & 0x100) {
 100                 actual_temp = temp & 0x1ff;
 101                 actual_temp |= ~0x1ff;
 102         } else
 103                 actual_temp = temp & 0xff;
 104
 105         return (actual_temp * 1000) / 2;
 106 }
 107
 108 int sumo_get_temp(struct radeon_device *rdev)
 109 {
 110         u32 temp = RREG32(CG_THERMAL_STATUS) & 0xff;
 111         int actual_temp = temp - 49;
 112
 113         return actual_temp * 1000;
 114 }
 115
 116 void evergreen_pm_misc(struct radeon_device *rdev)
 117 {
 118         int req_ps_idx = rdev->pm.requested_power_state_index;
 119         int req_cm_idx = rdev->pm.requested_clock_mode_index;
 120         struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
 121         struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
 122
 123         if (voltage->type == VOLTAGE_SW) {
 124                 if (voltage->voltage && (voltage->voltage != rdev->pm.current_vddc)) {
 125                         radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC);
 126                         rdev->pm.current_vddc = voltage->voltage;
 127                         DRM_DEBUG("Setting: vddc: %d\n", voltage->voltage);
 128                 }
 129                 if (voltage->vddci && (voltage->vddci != rdev->pm.current_vddci)) {
 130                         radeon_atom_set_voltage(rdev, voltage->vddci, SET_VOLTAGE_TYPE_ASIC_VDDCI);
 131                         rdev->pm.current_vddci = voltage->vddci;
 132                         DRM_DEBUG("Setting: vddci: %d\n", voltage->vddci);
 133                 }
 134         }
 135 }
 136
 137 void evergreen_pm_prepare(struct radeon_device *rdev)
 138 {
 139         struct drm_device *ddev = rdev->ddev;
 140         struct drm_crtc *crtc;
 141         struct radeon_crtc *radeon_crtc;
 142         u32 tmp;
 143
 144         /* disable any active CRTCs */
 145         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 146                 radeon_crtc = to_radeon_crtc(crtc);
 147                 if (radeon_crtc->enabled) {
 148                         tmp = RREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset);
 149                         tmp |= EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
 150                         WREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 151                 }
 152         }
 153 }
 154
 155 void evergreen_pm_finish(struct radeon_device *rdev)
 156 {
 157         struct drm_device *ddev = rdev->ddev;
 158         struct drm_crtc *crtc;
 159         struct radeon_crtc *radeon_crtc;
 160         u32 tmp;
 161
 162         /* enable any active CRTCs */
 163         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 164                 radeon_crtc = to_radeon_crtc(crtc);
 165                 if (radeon_crtc->enabled) {
 166                         tmp = RREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset);
 167                         tmp &= ~EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
 168                         WREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 169                 }
 170         }
 171 }
 172
 173 bool evergreen_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 174 {
 175         bool connected = false;
 176
 177         switch (hpd) {
 178         case RADEON_HPD_1:
 179                 if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
 180                         connected = true;
 181                 break;
 182         case RADEON_HPD_2:
 183                 if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
 184                         connected = true;
 185                 break;
 186         case RADEON_HPD_3:
 187                 if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
 188                         connected = true;
 189                 break;
 190         case RADEON_HPD_4:
 191                 if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
 192                         connected = true;
 193                 break;
 194         case RADEON_HPD_5:
 195                 if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
 196                         connected = true;
 197                 break;
 198         case RADEON_HPD_6:
 199                 if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
 200                         connected = true;
 201                         break;
 202         default:
 203                 break;
 204         }
 205
 206         return connected;
 207 }
 208
 209 void evergreen_hpd_set_polarity(struct radeon_device *rdev,
 210                                 enum radeon_hpd_id hpd)
 211 {
 212         u32 tmp;
 213         bool connected = evergreen_hpd_sense(rdev, hpd);
 214
 215         switch (hpd) {
 216         case RADEON_HPD_1:
 217                 tmp = RREG32(DC_HPD1_INT_CONTROL);
 218                 if (connected)
 219                         tmp &= ~DC_HPDx_INT_POLARITY;
 220                 else
 221                         tmp |= DC_HPDx_INT_POLARITY;
 222                 WREG32(DC_HPD1_INT_CONTROL, tmp);
 223                 break;
 224         case RADEON_HPD_2:
 225                 tmp = RREG32(DC_HPD2_INT_CONTROL);
 226                 if (connected)
 227                         tmp &= ~DC_HPDx_INT_POLARITY;
 228                 else
 229                         tmp |= DC_HPDx_INT_POLARITY;
 230                 WREG32(DC_HPD2_INT_CONTROL, tmp);
 231                 break;
 232         case RADEON_HPD_3:
 233                 tmp = RREG32(DC_HPD3_INT_CONTROL);
 234                 if (connected)
 235                         tmp &= ~DC_HPDx_INT_POLARITY;
 236                 else
 237                         tmp |= DC_HPDx_INT_POLARITY;
 238                 WREG32(DC_HPD3_INT_CONTROL, tmp);
 239                 break;
 240         case RADEON_HPD_4:
 241                 tmp = RREG32(DC_HPD4_INT_CONTROL);
 242                 if (connected)
 243                         tmp &= ~DC_HPDx_INT_POLARITY;
 244                 else
 245                         tmp |= DC_HPDx_INT_POLARITY;
 246                 WREG32(DC_HPD4_INT_CONTROL, tmp);
 247                 break;
 248         case RADEON_HPD_5:
 249                 tmp = RREG32(DC_HPD5_INT_CONTROL);
 250                 if (connected)
 251                         tmp &= ~DC_HPDx_INT_POLARITY;
 252                 else
 253                         tmp |= DC_HPDx_INT_POLARITY;
 254                 WREG32(DC_HPD5_INT_CONTROL, tmp);
 255                         break;
 256         case RADEON_HPD_6:
 257                 tmp = RREG32(DC_HPD6_INT_CONTROL);
 258                 if (connected)
 259                         tmp &= ~DC_HPDx_INT_POLARITY;
 260                 else
 261                         tmp |= DC_HPDx_INT_POLARITY;
 262                 WREG32(DC_HPD6_INT_CONTROL, tmp);
 263                 break;
 264         default:
 265                 break;
 266         }
 267 }
 268
 269 void evergreen_hpd_init(struct radeon_device *rdev)
 270 {
 271         struct drm_device *dev = rdev->ddev;
 272         struct drm_connector *connector;
 273         u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) |
 274                 DC_HPDx_RX_INT_TIMER(0xfa) | DC_HPDx_EN;
 275
 276         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 277                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 278                 switch (radeon_connector->hpd.hpd) {
 279                 case RADEON_HPD_1:
 280                         WREG32(DC_HPD1_CONTROL, tmp);
 281                         rdev->irq.hpd[0] = true;
 282                         break;
 283                 case RADEON_HPD_2:
 284                         WREG32(DC_HPD2_CONTROL, tmp);
 285                         rdev->irq.hpd[1] = true;
 286                         break;
 287                 case RADEON_HPD_3:
 288                         WREG32(DC_HPD3_CONTROL, tmp);
 289                         rdev->irq.hpd[2] = true;
 290                         break;
 291                 case RADEON_HPD_4:
 292                         WREG32(DC_HPD4_CONTROL, tmp);
 293                         rdev->irq.hpd[3] = true;
 294                         break;
 295                 case RADEON_HPD_5:
 296                         WREG32(DC_HPD5_CONTROL, tmp);
 297                         rdev->irq.hpd[4] = true;
 298                         break;
 299                 case RADEON_HPD_6:
 300                         WREG32(DC_HPD6_CONTROL, tmp);
 301                         rdev->irq.hpd[5] = true;
 302                         break;
 303                 default:
 304                         break;
 305                 }
 306         }
 307         if (rdev->irq.installed)
 308                 evergreen_irq_set(rdev);
 309 }
 310
 311 void evergreen_hpd_fini(struct radeon_device *rdev)
 312 {
 313         struct drm_device *dev = rdev->ddev;
 314         struct drm_connector *connector;
 315
 316         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 317                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 318                 switch (radeon_connector->hpd.hpd) {
 319                 case RADEON_HPD_1:
 320                         WREG32(DC_HPD1_CONTROL, 0);
 321                         rdev->irq.hpd[0] = false;
 322                         break;
 323                 case RADEON_HPD_2:
 324                         WREG32(DC_HPD2_CONTROL, 0);
 325                         rdev->irq.hpd[1] = false;
 326                         break;
 327                 case RADEON_HPD_3:
 328                         WREG32(DC_HPD3_CONTROL, 0);
 329                         rdev->irq.hpd[2] = false;
 330                         break;
 331                 case RADEON_HPD_4:
 332                         WREG32(DC_HPD4_CONTROL, 0);
 333                         rdev->irq.hpd[3] = false;
 334                         break;
 335                 case RADEON_HPD_5:
 336                         WREG32(DC_HPD5_CONTROL, 0);
 337                         rdev->irq.hpd[4] = false;
 338                         break;
 339                 case RADEON_HPD_6:
 340                         WREG32(DC_HPD6_CONTROL, 0);
 341                         rdev->irq.hpd[5] = false;
 342                         break;
 343                 default:
 344                         break;
 345                 }
 346         }
 347 }
 348
 349 /* watermark setup */
 350
 351 static u32 evergreen_line_buffer_adjust(struct radeon_device *rdev,
 352                                         struct radeon_crtc *radeon_crtc,
 353                                         struct drm_display_mode *mode,
 354                                         struct drm_display_mode *other_mode)
 355 {
 356         u32 tmp;
 357         /*
 358          * Line Buffer Setup
 359          * There are 3 line buffers, each one shared by 2 display controllers.
 360          * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
 361          * the display controllers.  The paritioning is done via one of four
 362          * preset allocations specified in bits 2:0:
 363          * first display controller
 364          *  0 - first half of lb (3840 * 2)
 365          *  1 - first 3/4 of lb (5760 * 2)
 366          *  2 - whole lb (7680 * 2), other crtc must be disabled
 367          *  3 - first 1/4 of lb (1920 * 2)
 368          * second display controller
 369          *  4 - second half of lb (3840 * 2)
 370          *  5 - second 3/4 of lb (5760 * 2)
 371          *  6 - whole lb (7680 * 2), other crtc must be disabled
 372          *  7 - last 1/4 of lb (1920 * 2)
 373          */
 374         /* this can get tricky if we have two large displays on a paired group
 375          * of crtcs.  Ideally for multiple large displays we'd assign them to
 376          * non-linked crtcs for maximum line buffer allocation.
 377          */
 378         if (radeon_crtc->base.enabled && mode) {
 379                 if (other_mode)
 380                         tmp = 0; /* 1/2 */
 381                 else
 382                         tmp = 2; /* whole */
 383         } else
 384                 tmp = 0;
 385
 386         /* second controller of the pair uses second half of the lb */
 387         if (radeon_crtc->crtc_id % 2)
 388                 tmp += 4;
 389         WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset, tmp);
 390
 391         if (radeon_crtc->base.enabled && mode) {
 392                 switch (tmp) {
 393                 case 0:
 394                 case 4:
 395                 default:
 396                         if (ASIC_IS_DCE5(rdev))
 397                                 return 4096 * 2;
 398                         else
 399                                 return 3840 * 2;
 400                 case 1:
 401                 case 5:
 402                         if (ASIC_IS_DCE5(rdev))
 403                                 return 6144 * 2;
 404                         else
 405                                 return 5760 * 2;
 406                 case 2:
 407                 case 6:
 408                         if (ASIC_IS_DCE5(rdev))
 409                                 return 8192 * 2;
 410                         else
 411                                 return 7680 * 2;
 412                 case 3:
 413                 case 7:
 414                         if (ASIC_IS_DCE5(rdev))
 415                                 return 2048 * 2;
 416                         else
 417                                 return 1920 * 2;
 418                 }
 419         }
 420
 421         /* controller not enabled, so no lb used */
 422         return 0;
 423 }
 424
 425 static u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev)
 426 {
 427         u32 tmp = RREG32(MC_SHARED_CHMAP);
 428
 429         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
 430         case 0:
 431         default:
 432                 return 1;
 433         case 1:
 434                 return 2;
 435         case 2:
 436                 return 4;
 437         case 3:
 438                 return 8;
 439         }
 440 }
 441
 442 struct evergreen_wm_params {
 443         u32 dram_channels; /* number of dram channels */
 444         u32 yclk;          /* bandwidth per dram data pin in kHz */
 445         u32 sclk;          /* engine clock in kHz */
 446         u32 disp_clk;      /* display clock in kHz */
 447         u32 src_width;     /* viewport width */
 448         u32 active_time;   /* active display time in ns */
 449         u32 blank_time;    /* blank time in ns */
 450         bool interlaced;    /* mode is interlaced */
 451         fixed20_12 vsc;    /* vertical scale ratio */
 452         u32 num_heads;     /* number of active crtcs */
 453         u32 bytes_per_pixel; /* bytes per pixel display + overlay */
 454         u32 lb_size;       /* line buffer allocated to pipe */
 455         u32 vtaps;         /* vertical scaler taps */
 456 };
 457
 458 static u32 evergreen_dram_bandwidth(struct evergreen_wm_params *wm)
 459 {
 460         /* Calculate DRAM Bandwidth and the part allocated to display. */
 461         fixed20_12 dram_efficiency; /* 0.7 */
 462         fixed20_12 yclk, dram_channels, bandwidth;
 463         fixed20_12 a;
 464
 465         a.full = dfixed_const(1000);
 466         yclk.full = dfixed_const(wm->yclk);
 467         yclk.full = dfixed_div(yclk, a);
 468         dram_channels.full = dfixed_const(wm->dram_channels * 4);
 469         a.full = dfixed_const(10);
 470         dram_efficiency.full = dfixed_const(7);
 471         dram_efficiency.full = dfixed_div(dram_efficiency, a);
 472         bandwidth.full = dfixed_mul(dram_channels, yclk);
 473         bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);
 474
 475         return dfixed_trunc(bandwidth);
 476 }
 477
 478 static u32 evergreen_dram_bandwidth_for_display(struct evergreen_wm_params *wm)
 479 {
 480         /* Calculate DRAM Bandwidth and the part allocated to display. */
 481         fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */
 482         fixed20_12 yclk, dram_channels, bandwidth;
 483         fixed20_12 a;
 484
 485         a.full = dfixed_const(1000);
 486         yclk.full = dfixed_const(wm->yclk);
 487         yclk.full = dfixed_div(yclk, a);
 488         dram_channels.full = dfixed_const(wm->dram_channels * 4);
 489         a.full = dfixed_const(10);
 490         disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */
 491         disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a);
 492         bandwidth.full = dfixed_mul(dram_channels, yclk);
 493         bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);
 494
 495         return dfixed_trunc(bandwidth);
 496 }
 497
 498 static u32 evergreen_data_return_bandwidth(struct evergreen_wm_params *wm)
 499 {
 500         /* Calculate the display Data return Bandwidth */
 501         fixed20_12 return_efficiency; /* 0.8 */
 502         fixed20_12 sclk, bandwidth;
 503         fixed20_12 a;
 504
 505         a.full = dfixed_const(1000);
 506         sclk.full = dfixed_const(wm->sclk);
 507         sclk.full = dfixed_div(sclk, a);
 508         a.full = dfixed_const(10);
 509         return_efficiency.full = dfixed_const(8);
 510         return_efficiency.full = dfixed_div(return_efficiency, a);
 511         a.full = dfixed_const(32);
 512         bandwidth.full = dfixed_mul(a, sclk);
 513         bandwidth.full = dfixed_mul(bandwidth, return_efficiency);
 514
 515         return dfixed_trunc(bandwidth);
 516 }
 517
 518 static u32 evergreen_dmif_request_bandwidth(struct evergreen_wm_params *wm)
 519 {
 520         /* Calculate the DMIF Request Bandwidth */
 521         fixed20_12 disp_clk_request_efficiency; /* 0.8 */
 522         fixed20_12 disp_clk, bandwidth;
 523         fixed20_12 a;
 524
 525         a.full = dfixed_const(1000);
 526         disp_clk.full = dfixed_const(wm->disp_clk);
 527         disp_clk.full = dfixed_div(disp_clk, a);
 528         a.full = dfixed_const(10);
 529         disp_clk_request_efficiency.full = dfixed_const(8);
 530         disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a);
 531         a.full = dfixed_const(32);
 532         bandwidth.full = dfixed_mul(a, disp_clk);
 533         bandwidth.full = dfixed_mul(bandwidth, disp_clk_request_efficiency);
 534
 535         return dfixed_trunc(bandwidth);
 536 }
 537
 538 static u32 evergreen_available_bandwidth(struct evergreen_wm_params *wm)
 539 {
 540         /* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
 541         u32 dram_bandwidth = evergreen_dram_bandwidth(wm);
 542         u32 data_return_bandwidth = evergreen_data_return_bandwidth(wm);
 543         u32 dmif_req_bandwidth = evergreen_dmif_request_bandwidth(wm);
 544
 545         return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
 546 }
 547
 548 static u32 evergreen_average_bandwidth(struct evergreen_wm_params *wm)
 549 {
 550         /* Calculate the display mode Average Bandwidth
 551          * DisplayMode should contain the source and destination dimensions,
 552          * timing, etc.
 553          */
 554         fixed20_12 bpp;
 555         fixed20_12 line_time;
 556         fixed20_12 src_width;
 557         fixed20_12 bandwidth;
 558         fixed20_12 a;
 559
 560         a.full = dfixed_const(1000);
 561         line_time.full = dfixed_const(wm->active_time + wm->blank_time);
 562         line_time.full = dfixed_div(line_time, a);
 563         bpp.full = dfixed_const(wm->bytes_per_pixel);
 564         src_width.full = dfixed_const(wm->src_width);
 565         bandwidth.full = dfixed_mul(src_width, bpp);
 566         bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
 567         bandwidth.full = dfixed_div(bandwidth, line_time);
 568
 569         return dfixed_trunc(bandwidth);
 570 }
 571
 572 static u32 evergreen_latency_watermark(struct evergreen_wm_params *wm)
 573 {
 574         /* First calcualte the latency in ns */
 575         u32 mc_latency = 2000; /* 2000 ns. */
 576         u32 available_bandwidth = evergreen_available_bandwidth(wm);
 577         u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth;
 578         u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth;
 579         u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */
 580         u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) +
 581                 (wm->num_heads * cursor_line_pair_return_time);
 582         u32 latency = mc_latency + other_heads_data_return_time + dc_latency;
 583         u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time;
 584         fixed20_12 a, b, c;
 585
 586         if (wm->num_heads == 0)
 587                 return 0;
 588
 589         a.full = dfixed_const(2);
 590         b.full = dfixed_const(1);
 591         if ((wm->vsc.full > a.full) ||
 592             ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) ||
 593             (wm->vtaps >= 5) ||
 594             ((wm->vsc.full >= a.full) && wm->interlaced))
 595                 max_src_lines_per_dst_line = 4;
 596         else
 597                 max_src_lines_per_dst_line = 2;
 598
 599         a.full = dfixed_const(available_bandwidth);
 600         b.full = dfixed_const(wm->num_heads);
 601         a.full = dfixed_div(a, b);
 602
 603         b.full = dfixed_const(1000);
 604         c.full = dfixed_const(wm->disp_clk);
 605         b.full = dfixed_div(c, b);
 606         c.full = dfixed_const(wm->bytes_per_pixel);
 607         b.full = dfixed_mul(b, c);
 608
 609         lb_fill_bw = min(dfixed_trunc(a), dfixed_trunc(b));
 610
 611         a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 612         b.full = dfixed_const(1000);
 613         c.full = dfixed_const(lb_fill_bw);
 614         b.full = dfixed_div(c, b);
 615         a.full = dfixed_div(a, b);
 616         line_fill_time = dfixed_trunc(a);
 617
 618         if (line_fill_time < wm->active_time)
 619                 return latency;
 620         else
 621                 return latency + (line_fill_time - wm->active_time);
 622
 623 }
 624
 625 static bool evergreen_average_bandwidth_vs_dram_bandwidth_for_display(struct evergreen_wm_params *wm)
 626 {
 627         if (evergreen_average_bandwidth(wm) <=
 628             (evergreen_dram_bandwidth_for_display(wm) / wm->num_heads))
 629                 return true;
 630         else
 631                 return false;
 632 };
 633
 634 static bool evergreen_average_bandwidth_vs_available_bandwidth(struct evergreen_wm_params *wm)
 635 {
 636         if (evergreen_average_bandwidth(wm) <=
 637             (evergreen_available_bandwidth(wm) / wm->num_heads))
 638                 return true;
 639         else
 640                 return false;
 641 };
 642
 643 static bool evergreen_check_latency_hiding(struct evergreen_wm_params *wm)
 644 {
 645         u32 lb_partitions = wm->lb_size / wm->src_width;
 646         u32 line_time = wm->active_time + wm->blank_time;
 647         u32 latency_tolerant_lines;
 648         u32 latency_hiding;
 649         fixed20_12 a;
 650
 651         a.full = dfixed_const(1);
 652         if (wm->vsc.full > a.full)
 653                 latency_tolerant_lines = 1;
 654         else {
 655                 if (lb_partitions <= (wm->vtaps + 1))
 656                         latency_tolerant_lines = 1;
 657                 else
 658                         latency_tolerant_lines = 2;
 659         }
 660
 661         latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time);
 662
 663         if (evergreen_latency_watermark(wm) <= latency_hiding)
 664                 return true;
 665         else
 666                 return false;
 667 }
 668
 669 static void evergreen_program_watermarks(struct radeon_device *rdev,
 670                                          struct radeon_crtc *radeon_crtc,
 671                                          u32 lb_size, u32 num_heads)
 672 {
 673         struct drm_display_mode *mode = &radeon_crtc->base.mode;
 674         struct evergreen_wm_params wm;
 675         u32 pixel_period;
 676         u32 line_time = 0;
 677         u32 latency_watermark_a = 0, latency_watermark_b = 0;
 678         u32 priority_a_mark = 0, priority_b_mark = 0;
 679         u32 priority_a_cnt = PRIORITY_OFF;
 680         u32 priority_b_cnt = PRIORITY_OFF;
 681         u32 pipe_offset = radeon_crtc->crtc_id * 16;
 682         u32 tmp, arb_control3;
 683         fixed20_12 a, b, c;
 684
 685         if (radeon_crtc->base.enabled && num_heads && mode) {
 686                 pixel_period = 1000000 / (u32)mode->clock;
 687                 line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
 688                 priority_a_cnt = 0;
 689                 priority_b_cnt = 0;
 690
 691                 wm.yclk = rdev->pm.current_mclk * 10;
 692                 wm.sclk = rdev->pm.current_sclk * 10;
 693                 wm.disp_clk = mode->clock;
 694                 wm.src_width = mode->crtc_hdisplay;
 695                 wm.active_time = mode->crtc_hdisplay * pixel_period;
 696                 wm.blank_time = line_time - wm.active_time;
 697                 wm.interlaced = false;
 698                 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 699                         wm.interlaced = true;
 700                 wm.vsc = radeon_crtc->vsc;
 701                 wm.vtaps = 1;
 702                 if (radeon_crtc->rmx_type != RMX_OFF)
 703                         wm.vtaps = 2;
 704                 wm.bytes_per_pixel = 4; /* XXX: get this from fb config */
 705                 wm.lb_size = lb_size;
 706                 wm.dram_channels = evergreen_get_number_of_dram_channels(rdev);
 707                 wm.num_heads = num_heads;
 708
 709                 /* set for high clocks */
 710                 latency_watermark_a = min(evergreen_latency_watermark(&wm), (u32)65535);
 711                 /* set for low clocks */
 712                 /* wm.yclk = low clk; wm.sclk = low clk */
 713                 latency_watermark_b = min(evergreen_latency_watermark(&wm), (u32)65535);
 714
 715                 /* possibly force display priority to high */
 716                 /* should really do this at mode validation time... */
 717                 if (!evergreen_average_bandwidth_vs_dram_bandwidth_for_display(&wm) ||
 718                     !evergreen_average_bandwidth_vs_available_bandwidth(&wm) ||
 719                     !evergreen_check_latency_hiding(&wm) ||
 720                     (rdev->disp_priority == 2)) {
 721                         DRM_INFO("force priority to high\n");
 722                         priority_a_cnt |= PRIORITY_ALWAYS_ON;
 723                         priority_b_cnt |= PRIORITY_ALWAYS_ON;
 724                 }
 725
 726                 a.full = dfixed_const(1000);
 727                 b.full = dfixed_const(mode->clock);
 728                 b.full = dfixed_div(b, a);
 729                 c.full = dfixed_const(latency_watermark_a);
 730                 c.full = dfixed_mul(c, b);
 731                 c.full = dfixed_mul(c, radeon_crtc->hsc);
 732                 c.full = dfixed_div(c, a);
 733                 a.full = dfixed_const(16);
 734                 c.full = dfixed_div(c, a);
 735                 priority_a_mark = dfixed_trunc(c);
 736                 priority_a_cnt |= priority_a_mark & PRIORITY_MARK_MASK;
 737
 738                 a.full = dfixed_const(1000);
 739                 b.full = dfixed_const(mode->clock);
 740                 b.full = dfixed_div(b, a);
 741                 c.full = dfixed_const(latency_watermark_b);
 742                 c.full = dfixed_mul(c, b);
 743                 c.full = dfixed_mul(c, radeon_crtc->hsc);
 744                 c.full = dfixed_div(c, a);
 745                 a.full = dfixed_const(16);
 746                 c.full = dfixed_div(c, a);
 747                 priority_b_mark = dfixed_trunc(c);
 748                 priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;
 749         }
 750
 751         /* select wm A */
 752         arb_control3 = RREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset);
 753         tmp = arb_control3;
 754         tmp &= ~LATENCY_WATERMARK_MASK(3);
 755         tmp |= LATENCY_WATERMARK_MASK(1);
 756         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, tmp);
 757         WREG32(PIPE0_LATENCY_CONTROL + pipe_offset,
 758                (LATENCY_LOW_WATERMARK(latency_watermark_a) |
 759                 LATENCY_HIGH_WATERMARK(line_time)));
 760         /* select wm B */
 761         tmp = RREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset);
 762         tmp &= ~LATENCY_WATERMARK_MASK(3);
 763         tmp |= LATENCY_WATERMARK_MASK(2);
 764         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, tmp);
 765         WREG32(PIPE0_LATENCY_CONTROL + pipe_offset,
 766                (LATENCY_LOW_WATERMARK(latency_watermark_b) |
 767                 LATENCY_HIGH_WATERMARK(line_time)));
 768         /* restore original selection */
 769         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, arb_control3);
 770
 771         /* write the priority marks */
 772         WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
 773         WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);
 774
 775 }
 776
 777 void evergreen_bandwidth_update(struct radeon_device *rdev)
 778 {
 779         struct drm_display_mode *mode0 = NULL;
 780         struct drm_display_mode *mode1 = NULL;
 781         u32 num_heads = 0, lb_size;
 782         int i;
 783
 784         radeon_update_display_priority(rdev);
 785
 786         for (i = 0; i < rdev->num_crtc; i++) {
 787                 if (rdev->mode_info.crtcs[i]->base.enabled)
 788                         num_heads++;
 789         }
 790         for (i = 0; i < rdev->num_crtc; i += 2) {
 791                 mode0 = &rdev->mode_info.crtcs[i]->base.mode;
 792                 mode1 = &rdev->mode_info.crtcs[i+1]->base.mode;
 793                 lb_size = evergreen_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i], mode0, mode1);
 794                 evergreen_program_watermarks(rdev, rdev->mode_info.crtcs[i], lb_size, num_heads);
 795                 lb_size = evergreen_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i+1], mode1, mode0);
 796                 evergreen_program_watermarks(rdev, rdev->mode_info.crtcs[i+1], lb_size, num_heads);
 797         }
 798 }
 799
 800 int evergreen_mc_wait_for_idle(struct radeon_device *rdev)
 801 {
 802         unsigned i;
 803         u32 tmp;
 804
 805         for (i = 0; i < rdev->usec_timeout; i++) {
 806                 /* read MC_STATUS */
 807                 tmp = RREG32(SRBM_STATUS) & 0x1F00;
 808                 if (!tmp)
 809                         return 0;
 810                 udelay(1);
 811         }
 812         return -1;
 813 }
 814
 815 /*
 816  * GART
 817  */
 818 void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev)
 819 {
 820         unsigned i;
 821         u32 tmp;
 822
 823         WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
 824
 825         WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
 826         for (i = 0; i < rdev->usec_timeout; i++) {
 827                 /* read MC_STATUS */
 828                 tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
 829                 tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
 830                 if (tmp == 2) {
 831                         printk(KERN_WARNING "[drm] r600 flush TLB failed\n");
 832                         return;
 833                 }
 834                 if (tmp) {
 835                         return;
 836                 }
 837                 udelay(1);
 838         }
 839 }
 840
 841 int evergreen_pcie_gart_enable(struct radeon_device *rdev)
 842 {
 843         u32 tmp;
 844         int r;
 845
 846         if (rdev->gart.table.vram.robj == NULL) {
 847                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 848                 return -EINVAL;
 849         }
 850         r = radeon_gart_table_vram_pin(rdev);
 851         if (r)
 852                 return r;
 853         radeon_gart_restore(rdev);
 854         /* Setup L2 cache */
 855         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 856                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 857                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 858         WREG32(VM_L2_CNTL2, 0);
 859         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 860         /* Setup TLB control */
 861         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 862                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 863                 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
 864                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 865         if (rdev->flags & RADEON_IS_IGP) {
 866                 WREG32(FUS_MC_VM_MD_L1_TLB0_CNTL, tmp);
 867                 WREG32(FUS_MC_VM_MD_L1_TLB1_CNTL, tmp);
 868                 WREG32(FUS_MC_VM_MD_L1_TLB2_CNTL, tmp);
 869         } else {
 870                 WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 871                 WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 872                 WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 873         }
 874         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 875         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 876         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 877         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 878         WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
 879         WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
 880         WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
 881         WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 882                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 883         WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 884                         (u32)(rdev->dummy_page.addr >> 12));
 885         WREG32(VM_CONTEXT1_CNTL, 0);
 886
 887         evergreen_pcie_gart_tlb_flush(rdev);
 888         rdev->gart.ready = true;
 889         return 0;
 890 }
 891
 892 void evergreen_pcie_gart_disable(struct radeon_device *rdev)
 893 {
 894         u32 tmp;
 895         int r;
 896
 897         /* Disable all tables */
 898         WREG32(VM_CONTEXT0_CNTL, 0);
 899         WREG32(VM_CONTEXT1_CNTL, 0);
 900
 901         /* Setup L2 cache */
 902         WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
 903                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 904         WREG32(VM_L2_CNTL2, 0);
 905         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 906         /* Setup TLB control */
 907         tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 908         WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 909         WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 910         WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 911         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 912         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 913         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 914         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 915         if (rdev->gart.table.vram.robj) {
 916                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 917                 if (likely(r == 0)) {
 918                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 919                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 920                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 921                 }
 922         }
 923 }
 924
 925 void evergreen_pcie_gart_fini(struct radeon_device *rdev)
 926 {
 927         evergreen_pcie_gart_disable(rdev);
 928         radeon_gart_table_vram_free(rdev);
 929         radeon_gart_fini(rdev);
 930 }
 931
 932
 933 void evergreen_agp_enable(struct radeon_device *rdev)
 934 {
 935         u32 tmp;
 936
 937         /* Setup L2 cache */
 938         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 939                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 940                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 941         WREG32(VM_L2_CNTL2, 0);
 942         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 943         /* Setup TLB control */
 944         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 945                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 946                 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
 947                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 948         WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 949         WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 950         WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 951         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 952         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 953         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 954         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 955         WREG32(VM_CONTEXT0_CNTL, 0);
 956         WREG32(VM_CONTEXT1_CNTL, 0);
 957 }
 958
 959 void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 960 {
 961         save->vga_control[0] = RREG32(D1VGA_CONTROL);
 962         save->vga_control[1] = RREG32(D2VGA_CONTROL);
 963         save->vga_control[2] = RREG32(EVERGREEN_D3VGA_CONTROL);
 964         save->vga_control[3] = RREG32(EVERGREEN_D4VGA_CONTROL);
 965         save->vga_control[4] = RREG32(EVERGREEN_D5VGA_CONTROL);
 966         save->vga_control[5] = RREG32(EVERGREEN_D6VGA_CONTROL);
 967         save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
 968         save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
 969         save->crtc_control[0] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
 970         save->crtc_control[1] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
 971         if (!(rdev->flags & RADEON_IS_IGP)) {
 972                 save->crtc_control[2] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
 973                 save->crtc_control[3] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
 974                 save->crtc_control[4] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
 975                 save->crtc_control[5] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
 976         }
 977
 978         /* Stop all video */
 979         WREG32(VGA_RENDER_CONTROL, 0);
 980         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
 981         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
 982         if (!(rdev->flags & RADEON_IS_IGP)) {
 983                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
 984                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
 985                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
 986                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
 987         }
 988         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 989         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
 990         if (!(rdev->flags & RADEON_IS_IGP)) {
 991                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
 992                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
 993                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
 994                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
 995         }
 996         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 997         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
 998         if (!(rdev->flags & RADEON_IS_IGP)) {
 999                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
1000                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
1001                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
1002                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
1003         }
1004
1005         WREG32(D1VGA_CONTROL, 0);
1006         WREG32(D2VGA_CONTROL, 0);
1007         WREG32(EVERGREEN_D3VGA_CONTROL, 0);
1008         WREG32(EVERGREEN_D4VGA_CONTROL, 0);
1009         WREG32(EVERGREEN_D5VGA_CONTROL, 0);
1010         WREG32(EVERGREEN_D6VGA_CONTROL, 0);
1011 }
1012
1013 void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
1014 {
1015         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
1016                upper_32_bits(rdev->mc.vram_start));
1017         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
1018                upper_32_bits(rdev->mc.vram_start));
1019         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
1020                (u32)rdev->mc.vram_start);
1021         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
1022                (u32)rdev->mc.vram_start);
1023
1024         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
1025                upper_32_bits(rdev->mc.vram_start));
1026         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
1027                upper_32_bits(rdev->mc.vram_start));
1028         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
1029                (u32)rdev->mc.vram_start);
1030         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
1031                (u32)rdev->mc.vram_start);
1032
1033         if (!(rdev->flags & RADEON_IS_IGP)) {
1034                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
1035                        upper_32_bits(rdev->mc.vram_start));
1036                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
1037                        upper_32_bits(rdev->mc.vram_start));
1038                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
1039                        (u32)rdev->mc.vram_start);
1040                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
1041                        (u32)rdev->mc.vram_start);
1042
1043                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
1044                        upper_32_bits(rdev->mc.vram_start));
1045                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
1046                        upper_32_bits(rdev->mc.vram_start));
1047                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
1048                        (u32)rdev->mc.vram_start);
1049                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
1050                        (u32)rdev->mc.vram_start);
1051
1052                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
1053                        upper_32_bits(rdev->mc.vram_start));
1054                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
1055                        upper_32_bits(rdev->mc.vram_start));
1056                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
1057                        (u32)rdev->mc.vram_start);
1058                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
1059                        (u32)rdev->mc.vram_start);
1060
1061                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
1062                        upper_32_bits(rdev->mc.vram_start));
1063                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
1064                        upper_32_bits(rdev->mc.vram_start));
1065                 WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
1066                        (u32)rdev->mc.vram_start);
1067                 WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
1068                        (u32)rdev->mc.vram_start);
1069         }
1070
1071         WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
1072         WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
1073         /* Unlock host access */
1074         WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
1075         mdelay(1);
1076         /* Restore video state */
1077         WREG32(D1VGA_CONTROL, save->vga_control[0]);
1078         WREG32(D2VGA_CONTROL, save->vga_control[1]);
1079         WREG32(EVERGREEN_D3VGA_CONTROL, save->vga_control[2]);
1080         WREG32(EVERGREEN_D4VGA_CONTROL, save->vga_control[3]);
1081         WREG32(EVERGREEN_D5VGA_CONTROL, save->vga_control[4]);
1082         WREG32(EVERGREEN_D6VGA_CONTROL, save->vga_control[5]);
1083         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
1084         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
1085         if (!(rdev->flags & RADEON_IS_IGP)) {
1086                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
1087                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
1088                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
1089                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
1090         }
1091         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, save->crtc_control[0]);
1092         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, save->crtc_control[1]);
1093         if (!(rdev->flags & RADEON_IS_IGP)) {
1094                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, save->crtc_control[2]);
1095                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, save->crtc_control[3]);
1096                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, save->crtc_control[4]);
1097                 WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, save->crtc_control[5]);
1098         }
1099         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
1100         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
1101         if (!(rdev->flags & RADEON_IS_IGP)) {
1102                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
1103                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
1104                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
1105                 WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
1106         }
1107         WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
1108 }
1109
1110 void evergreen_mc_program(struct radeon_device *rdev)
1111 {
1112         struct evergreen_mc_save save;
1113         u32 tmp;
1114         int i, j;
1115
1116         /* Initialize HDP */
1117         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1118                 WREG32((0x2c14 + j), 0x00000000);
1119                 WREG32((0x2c18 + j), 0x00000000);
1120                 WREG32((0x2c1c + j), 0x00000000);
1121                 WREG32((0x2c20 + j), 0x00000000);
1122                 WREG32((0x2c24 + j), 0x00000000);
1123         }
1124         WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
1125
1126         evergreen_mc_stop(rdev, &save);
1127         if (evergreen_mc_wait_for_idle(rdev)) {
1128                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1129         }
1130         /* Lockout access through VGA aperture*/
1131         WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
1132         /* Update configuration */
1133         if (rdev->flags & RADEON_IS_AGP) {
1134                 if (rdev->mc.vram_start < rdev->mc.gtt_start) {
1135                         /* VRAM before AGP */
1136                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1137                                 rdev->mc.vram_start >> 12);
1138                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1139                                 rdev->mc.gtt_end >> 12);
1140                 } else {
1141                         /* VRAM after AGP */
1142                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1143                                 rdev->mc.gtt_start >> 12);
1144                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1145                                 rdev->mc.vram_end >> 12);
1146                 }
1147         } else {
1148                 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1149                         rdev->mc.vram_start >> 12);
1150                 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1151                         rdev->mc.vram_end >> 12);
1152         }
1153         WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0);
1154         if (rdev->flags & RADEON_IS_IGP) {
1155                 tmp = RREG32(MC_FUS_VM_FB_OFFSET) & 0x000FFFFF;
1156                 tmp |= ((rdev->mc.vram_end >> 20) & 0xF) << 24;
1157                 tmp |= ((rdev->mc.vram_start >> 20) & 0xF) << 20;
1158                 WREG32(MC_FUS_VM_FB_OFFSET, tmp);
1159         }
1160         tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
1161         tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
1162         WREG32(MC_VM_FB_LOCATION, tmp);
1163         WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
1164         WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
1165         WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
1166         if (rdev->flags & RADEON_IS_AGP) {
1167                 WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
1168                 WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
1169                 WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
1170         } else {
1171                 WREG32(MC_VM_AGP_BASE, 0);
1172                 WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
1173                 WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
1174         }
1175         if (evergreen_mc_wait_for_idle(rdev)) {
1176                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1177         }
1178         evergreen_mc_resume(rdev, &save);
1179         /* we need to own VRAM, so turn off the VGA renderer here
1180          * to stop it overwriting our objects */
1181         rv515_vga_render_disable(rdev);
1182 }
1183
1184 /*
1185  * CP.
1186  */
1187 void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
1188 {
1189         /* set to DX10/11 mode */
1190         radeon_ring_write(rdev, PACKET3(PACKET3_MODE_CONTROL, 0));
1191         radeon_ring_write(rdev, 1);
1192         /* FIXME: implement */
1193         radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
1194         radeon_ring_write(rdev,
1195 #ifdef __BIG_ENDIAN
1196                           (2 << 0) |
1197 #endif
1198                           (ib->gpu_addr & 0xFFFFFFFC));
1199         radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF);
1200         radeon_ring_write(rdev, ib->length_dw);
1201 }
1202
1203
1204 static int evergreen_cp_load_microcode(struct radeon_device *rdev)
1205 {
1206         const __be32 *fw_data;
1207         int i;
1208
1209         if (!rdev->me_fw || !rdev->pfp_fw)
1210                 return -EINVAL;
1211
1212         r700_cp_stop(rdev);
1213         WREG32(CP_RB_CNTL,
1214 #ifdef __BIG_ENDIAN
1215                BUF_SWAP_32BIT |
1216 #endif
1217                RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
1218
1219         fw_data = (const __be32 *)rdev->pfp_fw->data;
1220         WREG32(CP_PFP_UCODE_ADDR, 0);
1221         for (i = 0; i < EVERGREEN_PFP_UCODE_SIZE; i++)
1222                 WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
1223         WREG32(CP_PFP_UCODE_ADDR, 0);
1224
1225         fw_data = (const __be32 *)rdev->me_fw->data;
1226         WREG32(CP_ME_RAM_WADDR, 0);
1227         for (i = 0; i < EVERGREEN_PM4_UCODE_SIZE; i++)
1228                 WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
1229
1230         WREG32(CP_PFP_UCODE_ADDR, 0);
1231         WREG32(CP_ME_RAM_WADDR, 0);
1232         WREG32(CP_ME_RAM_RADDR, 0);
1233         return 0;
1234 }
1235
1236 static int evergreen_cp_start(struct radeon_device *rdev)
1237 {
1238         int r, i;
1239         uint32_t cp_me;
1240
1241         r = radeon_ring_lock(rdev, 7);
1242         if (r) {
1243                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1244                 return r;
1245         }
1246         radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
1247         radeon_ring_write(rdev, 0x1);
1248         radeon_ring_write(rdev, 0x0);
1249         radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
1250         radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1251         radeon_ring_write(rdev, 0);
1252         radeon_ring_write(rdev, 0);
1253         radeon_ring_unlock_commit(rdev);
1254
1255         cp_me = 0xff;
1256         WREG32(CP_ME_CNTL, cp_me);
1257
1258         r = radeon_ring_lock(rdev, evergreen_default_size + 19);
1259         if (r) {
1260                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1261                 return r;
1262         }
1263
1264         /* setup clear context state */
1265         radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1266         radeon_ring_write(rdev, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
1267
1268         for (i = 0; i < evergreen_default_size; i++)
1269                 radeon_ring_write(rdev, evergreen_default_state[i]);
1270
1271         radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1272         radeon_ring_write(rdev, PACKET3_PREAMBLE_END_CLEAR_STATE);
1273
1274         /* set clear context state */
1275         radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
1276         radeon_ring_write(rdev, 0);
1277
1278         /* SQ_VTX_BASE_VTX_LOC */
1279         radeon_ring_write(rdev, 0xc0026f00);
1280         radeon_ring_write(rdev, 0x00000000);
1281         radeon_ring_write(rdev, 0x00000000);
1282         radeon_ring_write(rdev, 0x00000000);
1283
1284         /* Clear consts */
1285         radeon_ring_write(rdev, 0xc0036f00);
1286         radeon_ring_write(rdev, 0x00000bc4);
1287         radeon_ring_write(rdev, 0xffffffff);
1288         radeon_ring_write(rdev, 0xffffffff);
1289         radeon_ring_write(rdev, 0xffffffff);
1290
1291         radeon_ring_write(rdev, 0xc0026900);
1292         radeon_ring_write(rdev, 0x00000316);
1293         radeon_ring_write(rdev, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
1294         radeon_ring_write(rdev, 0x00000010); /*  */
1295
1296         radeon_ring_unlock_commit(rdev);
1297
1298         return 0;
1299 }
1300
1301 int evergreen_cp_resume(struct radeon_device *rdev)
1302 {
1303         u32 tmp;
1304         u32 rb_bufsz;
1305         int r;
1306
1307         /* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1308         WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1309                                  SOFT_RESET_PA |
1310                                  SOFT_RESET_SH |
1311                                  SOFT_RESET_VGT |
1312                                  SOFT_RESET_SX));
1313         RREG32(GRBM_SOFT_RESET);
1314         mdelay(15);
1315         WREG32(GRBM_SOFT_RESET, 0);
1316         RREG32(GRBM_SOFT_RESET);
1317
1318         /* Set ring buffer size */
1319         rb_bufsz = drm_order(rdev->cp.ring_size / 8);
1320         tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1321 #ifdef __BIG_ENDIAN
1322         tmp |= BUF_SWAP_32BIT;
1323 #endif
1324         WREG32(CP_RB_CNTL, tmp);
1325         WREG32(CP_SEM_WAIT_TIMER, 0x4);
1326
1327         /* Set the write pointer delay */
1328         WREG32(CP_RB_WPTR_DELAY, 0);
1329
1330         /* Initialize the ring buffer's read and write pointers */
1331         WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
1332         WREG32(CP_RB_RPTR_WR, 0);
1333         WREG32(CP_RB_WPTR, 0);
1334
1335         /* set the wb address wether it's enabled or not */
1336         WREG32(CP_RB_RPTR_ADDR,
1337 #ifdef __BIG_ENDIAN
1338                RB_RPTR_SWAP(2) |
1339 #endif
1340                ((rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC));
1341         WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
1342         WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1343
1344         if (rdev->wb.enabled)
1345                 WREG32(SCRATCH_UMSK, 0xff);
1346         else {
1347                 tmp |= RB_NO_UPDATE;
1348                 WREG32(SCRATCH_UMSK, 0);
1349         }
1350
1351         mdelay(1);
1352         WREG32(CP_RB_CNTL, tmp);
1353
1354         WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
1355         WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
1356
1357         rdev->cp.rptr = RREG32(CP_RB_RPTR);
1358         rdev->cp.wptr = RREG32(CP_RB_WPTR);
1359
1360         evergreen_cp_start(rdev);
1361         rdev->cp.ready = true;
1362         r = radeon_ring_test(rdev);
1363         if (r) {
1364                 rdev->cp.ready = false;
1365                 return r;
1366         }
1367         return 0;
1368 }
1369
1370 /*
1371  * Core functions
1372  */
1373 static u32 evergreen_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
1374                                                   u32 num_tile_pipes,
1375                                                   u32 num_backends,
1376                                                   u32 backend_disable_mask)
1377 {
1378         u32 backend_map = 0;
1379         u32 enabled_backends_mask = 0;
1380         u32 enabled_backends_count = 0;
1381         u32 cur_pipe;
1382         u32 swizzle_pipe[EVERGREEN_MAX_PIPES];
1383         u32 cur_backend = 0;
1384         u32 i;
1385         bool force_no_swizzle;
1386
1387         if (num_tile_pipes > EVERGREEN_MAX_PIPES)
1388                 num_tile_pipes = EVERGREEN_MAX_PIPES;
1389         if (num_tile_pipes < 1)
1390                 num_tile_pipes = 1;
1391         if (num_backends > EVERGREEN_MAX_BACKENDS)
1392                 num_backends = EVERGREEN_MAX_BACKENDS;
1393         if (num_backends < 1)
1394                 num_backends = 1;
1395
1396         for (i = 0; i < EVERGREEN_MAX_BACKENDS; ++i) {
1397                 if (((backend_disable_mask >> i) & 1) == 0) {
1398                         enabled_backends_mask |= (1 << i);
1399                         ++enabled_backends_count;
1400                 }
1401                 if (enabled_backends_count == num_backends)
1402                         break;
1403         }
1404
1405         if (enabled_backends_count == 0) {
1406                 enabled_backends_mask = 1;
1407                 enabled_backends_count = 1;
1408         }
1409
1410         if (enabled_backends_count != num_backends)
1411                 num_backends = enabled_backends_count;
1412
1413         memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * EVERGREEN_MAX_PIPES);
1414         switch (rdev->family) {
1415         case CHIP_CEDAR:
1416         case CHIP_REDWOOD:
1417         case CHIP_PALM:
1418         case CHIP_TURKS:
1419         case CHIP_CAICOS:
1420                 force_no_swizzle = false;
1421                 break;
1422         case CHIP_CYPRESS:
1423         case CHIP_HEMLOCK:
1424         case CHIP_JUNIPER:
1425         case CHIP_BARTS:
1426         default:
1427                 force_no_swizzle = true;
1428                 break;
1429         }
1430         if (force_no_swizzle) {
1431                 bool last_backend_enabled = false;
1432
1433                 force_no_swizzle = false;
1434                 for (i = 0; i < EVERGREEN_MAX_BACKENDS; ++i) {
1435                         if (((enabled_backends_mask >> i) & 1) == 1) {
1436                                 if (last_backend_enabled)
1437                                         force_no_swizzle = true;
1438                                 last_backend_enabled = true;
1439                         } else
1440                                 last_backend_enabled = false;
1441                 }
1442         }
1443
1444         switch (num_tile_pipes) {
1445         case 1:
1446         case 3:
1447         case 5:
1448         case 7:
1449                 DRM_ERROR("odd number of pipes!\n");
1450                 break;
1451         case 2:
1452                 swizzle_pipe[0] = 0;
1453                 swizzle_pipe[1] = 1;
1454                 break;
1455         case 4:
1456                 if (force_no_swizzle) {
1457                         swizzle_pipe[0] = 0;
1458                         swizzle_pipe[1] = 1;
1459                         swizzle_pipe[2] = 2;
1460                         swizzle_pipe[3] = 3;
1461                 } else {
1462                         swizzle_pipe[0] = 0;
1463                         swizzle_pipe[1] = 2;
1464                         swizzle_pipe[2] = 1;
1465                         swizzle_pipe[3] = 3;
1466                 }
1467                 break;
1468         case 6:
1469                 if (force_no_swizzle) {
1470                         swizzle_pipe[0] = 0;
1471                         swizzle_pipe[1] = 1;
1472                         swizzle_pipe[2] = 2;
1473                         swizzle_pipe[3] = 3;
1474                         swizzle_pipe[4] = 4;
1475                         swizzle_pipe[5] = 5;
1476                 } else {
1477                         swizzle_pipe[0] = 0;
1478                         swizzle_pipe[1] = 2;
1479                         swizzle_pipe[2] = 4;
1480                         swizzle_pipe[3] = 1;
1481                         swizzle_pipe[4] = 3;
1482                         swizzle_pipe[5] = 5;
1483                 }
1484                 break;
1485         case 8:
1486                 if (force_no_swizzle) {
1487                         swizzle_pipe[0] = 0;
1488                         swizzle_pipe[1] = 1;
1489                         swizzle_pipe[2] = 2;
1490                         swizzle_pipe[3] = 3;
1491                         swizzle_pipe[4] = 4;
1492                         swizzle_pipe[5] = 5;
1493                         swizzle_pipe[6] = 6;
1494                         swizzle_pipe[7] = 7;
1495                 } else {
1496                         swizzle_pipe[0] = 0;
1497                         swizzle_pipe[1] = 2;
1498                         swizzle_pipe[2] = 4;
1499                         swizzle_pipe[3] = 6;
1500                         swizzle_pipe[4] = 1;
1501                         swizzle_pipe[5] = 3;
1502                         swizzle_pipe[6] = 5;
1503                         swizzle_pipe[7] = 7;
1504                 }
1505                 break;
1506         }
1507
1508         for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
1509                 while (((1 << cur_backend) & enabled_backends_mask) == 0)
1510                         cur_backend = (cur_backend + 1) % EVERGREEN_MAX_BACKENDS;
1511
1512                 backend_map |= (((cur_backend & 0xf) << (swizzle_pipe[cur_pipe] * 4)));
1513
1514                 cur_backend = (cur_backend + 1) % EVERGREEN_MAX_BACKENDS;
1515         }
1516
1517         return backend_map;
1518 }
1519
1520 static void evergreen_program_channel_remap(struct radeon_device *rdev)
1521 {
1522         u32 tcp_chan_steer_lo, tcp_chan_steer_hi, mc_shared_chremap, tmp;
1523
1524         tmp = RREG32(MC_SHARED_CHMAP);
1525         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
1526         case 0:
1527         case 1:
1528         case 2:
1529         case 3:
1530         default:
1531                 /* default mapping */
1532                 mc_shared_chremap = 0x00fac688;
1533                 break;
1534         }
1535
1536         switch (rdev->family) {
1537         case CHIP_HEMLOCK:
1538         case CHIP_CYPRESS:
1539         case CHIP_BARTS:
1540                 tcp_chan_steer_lo = 0x54763210;
1541                 tcp_chan_steer_hi = 0x0000ba98;
1542                 break;
1543         case CHIP_JUNIPER:
1544         case CHIP_REDWOOD:
1545         case CHIP_CEDAR:
1546         case CHIP_PALM:
1547         case CHIP_TURKS:
1548         case CHIP_CAICOS:
1549         default:
1550                 tcp_chan_steer_lo = 0x76543210;
1551                 tcp_chan_steer_hi = 0x0000ba98;
1552                 break;
1553         }
1554
1555         WREG32(TCP_CHAN_STEER_LO, tcp_chan_steer_lo);
1556         WREG32(TCP_CHAN_STEER_HI, tcp_chan_steer_hi);
1557         WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
1558 }
1559
1560 static void evergreen_gpu_init(struct radeon_device *rdev)
1561 {
1562         u32 cc_rb_backend_disable = 0;
1563         u32 cc_gc_shader_pipe_config;
1564         u32 gb_addr_config = 0;
1565         u32 mc_shared_chmap, mc_arb_ramcfg;
1566         u32 gb_backend_map;
1567         u32 grbm_gfx_index;
1568         u32 sx_debug_1;
1569         u32 smx_dc_ctl0;
1570         u32 sq_config;
1571         u32 sq_lds_resource_mgmt;
1572         u32 sq_gpr_resource_mgmt_1;
1573         u32 sq_gpr_resource_mgmt_2;
1574         u32 sq_gpr_resource_mgmt_3;
1575         u32 sq_thread_resource_mgmt;
1576         u32 sq_thread_resource_mgmt_2;
1577         u32 sq_stack_resource_mgmt_1;
1578         u32 sq_stack_resource_mgmt_2;
1579         u32 sq_stack_resource_mgmt_3;
1580         u32 vgt_cache_invalidation;
1581         u32 hdp_host_path_cntl, tmp;
1582         int i, j, num_shader_engines, ps_thread_count;
1583
1584         switch (rdev->family) {
1585         case CHIP_CYPRESS:
1586         case CHIP_HEMLOCK:
1587                 rdev->config.evergreen.num_ses = 2;
1588                 rdev->config.evergreen.max_pipes = 4;
1589                 rdev->config.evergreen.max_tile_pipes = 8;
1590                 rdev->config.evergreen.max_simds = 10;
1591                 rdev->config.evergreen.max_backends = 4 * rdev->config.evergreen.num_ses;
1592                 rdev->config.evergreen.max_gprs = 256;
1593                 rdev->config.evergreen.max_threads = 248;
1594                 rdev->config.evergreen.max_gs_threads = 32;
1595                 rdev->config.evergreen.max_stack_entries = 512;
1596                 rdev->config.evergreen.sx_num_of_sets = 4;
1597                 rdev->config.evergreen.sx_max_export_size = 256;
1598                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1599                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1600                 rdev->config.evergreen.max_hw_contexts = 8;
1601                 rdev->config.evergreen.sq_num_cf_insts = 2;
1602
1603                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1604                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1605                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1606                 break;
1607         case CHIP_JUNIPER:
1608                 rdev->config.evergreen.num_ses = 1;
1609                 rdev->config.evergreen.max_pipes = 4;
1610                 rdev->config.evergreen.max_tile_pipes = 4;
1611                 rdev->config.evergreen.max_simds = 10;
1612                 rdev->config.evergreen.max_backends = 4 * rdev->config.evergreen.num_ses;
1613                 rdev->config.evergreen.max_gprs = 256;
1614                 rdev->config.evergreen.max_threads = 248;
1615                 rdev->config.evergreen.max_gs_threads = 32;
1616                 rdev->config.evergreen.max_stack_entries = 512;
1617                 rdev->config.evergreen.sx_num_of_sets = 4;
1618                 rdev->config.evergreen.sx_max_export_size = 256;
1619                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1620                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1621                 rdev->config.evergreen.max_hw_contexts = 8;
1622                 rdev->config.evergreen.sq_num_cf_insts = 2;
1623
1624                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1625                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1626                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1627                 break;
1628         case CHIP_REDWOOD:
1629                 rdev->config.evergreen.num_ses = 1;
1630                 rdev->config.evergreen.max_pipes = 4;
1631                 rdev->config.evergreen.max_tile_pipes = 4;
1632                 rdev->config.evergreen.max_simds = 5;
1633                 rdev->config.evergreen.max_backends = 2 * rdev->config.evergreen.num_ses;
1634                 rdev->config.evergreen.max_gprs = 256;
1635                 rdev->config.evergreen.max_threads = 248;
1636                 rdev->config.evergreen.max_gs_threads = 32;
1637                 rdev->config.evergreen.max_stack_entries = 256;
1638                 rdev->config.evergreen.sx_num_of_sets = 4;
1639                 rdev->config.evergreen.sx_max_export_size = 256;
1640                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1641                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1642                 rdev->config.evergreen.max_hw_contexts = 8;
1643                 rdev->config.evergreen.sq_num_cf_insts = 2;
1644
1645                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1646                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1647                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1648                 break;
1649         case CHIP_CEDAR:
1650         default:
1651                 rdev->config.evergreen.num_ses = 1;
1652                 rdev->config.evergreen.max_pipes = 2;
1653                 rdev->config.evergreen.max_tile_pipes = 2;
1654                 rdev->config.evergreen.max_simds = 2;
1655                 rdev->config.evergreen.max_backends = 1 * rdev->config.evergreen.num_ses;
1656                 rdev->config.evergreen.max_gprs = 256;
1657                 rdev->config.evergreen.max_threads = 192;
1658                 rdev->config.evergreen.max_gs_threads = 16;
1659                 rdev->config.evergreen.max_stack_entries = 256;
1660                 rdev->config.evergreen.sx_num_of_sets = 4;
1661                 rdev->config.evergreen.sx_max_export_size = 128;
1662                 rdev->config.evergreen.sx_max_export_pos_size = 32;
1663                 rdev->config.evergreen.sx_max_export_smx_size = 96;
1664                 rdev->config.evergreen.max_hw_contexts = 4;
1665                 rdev->config.evergreen.sq_num_cf_insts = 1;
1666
1667                 rdev->config.evergreen.sc_prim_fifo_size = 0x40;
1668                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1669                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1670                 break;
1671         case CHIP_PALM:
1672                 rdev->config.evergreen.num_ses = 1;
1673                 rdev->config.evergreen.max_pipes = 2;
1674                 rdev->config.evergreen.max_tile_pipes = 2;
1675                 rdev->config.evergreen.max_simds = 2;
1676                 rdev->config.evergreen.max_backends = 1 * rdev->config.evergreen.num_ses;
1677                 rdev->config.evergreen.max_gprs = 256;
1678                 rdev->config.evergreen.max_threads = 192;
1679                 rdev->config.evergreen.max_gs_threads = 16;
1680                 rdev->config.evergreen.max_stack_entries = 256;
1681                 rdev->config.evergreen.sx_num_of_sets = 4;
1682                 rdev->config.evergreen.sx_max_export_size = 128;
1683                 rdev->config.evergreen.sx_max_export_pos_size = 32;
1684                 rdev->config.evergreen.sx_max_export_smx_size = 96;
1685                 rdev->config.evergreen.max_hw_contexts = 4;
1686                 rdev->config.evergreen.sq_num_cf_insts = 1;
1687
1688                 rdev->config.evergreen.sc_prim_fifo_size = 0x40;
1689                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1690                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1691                 break;
1692         case CHIP_BARTS:
1693                 rdev->config.evergreen.num_ses = 2;
1694                 rdev->config.evergreen.max_pipes = 4;
1695                 rdev->config.evergreen.max_tile_pipes = 8;
1696                 rdev->config.evergreen.max_simds = 7;
1697                 rdev->config.evergreen.max_backends = 4 * rdev->config.evergreen.num_ses;
1698                 rdev->config.evergreen.max_gprs = 256;
1699                 rdev->config.evergreen.max_threads = 248;
1700                 rdev->config.evergreen.max_gs_threads = 32;
1701                 rdev->config.evergreen.max_stack_entries = 512;
1702                 rdev->config.evergreen.sx_num_of_sets = 4;
1703                 rdev->config.evergreen.sx_max_export_size = 256;
1704                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1705                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1706                 rdev->config.evergreen.max_hw_contexts = 8;
1707                 rdev->config.evergreen.sq_num_cf_insts = 2;
1708
1709                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1710                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1711                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1712                 break;
1713         case CHIP_TURKS:
1714                 rdev->config.evergreen.num_ses = 1;
1715                 rdev->config.evergreen.max_pipes = 4;
1716                 rdev->config.evergreen.max_tile_pipes = 4;
1717                 rdev->config.evergreen.max_simds = 6;
1718                 rdev->config.evergreen.max_backends = 2 * rdev->config.evergreen.num_ses;
1719                 rdev->config.evergreen.max_gprs = 256;
1720                 rdev->config.evergreen.max_threads = 248;
1721                 rdev->config.evergreen.max_gs_threads = 32;
1722                 rdev->config.evergreen.max_stack_entries = 256;
1723                 rdev->config.evergreen.sx_num_of_sets = 4;
1724                 rdev->config.evergreen.sx_max_export_size = 256;
1725                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1726                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1727                 rdev->config.evergreen.max_hw_contexts = 8;
1728                 rdev->config.evergreen.sq_num_cf_insts = 2;
1729
1730                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1731                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1732                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1733                 break;
1734         case CHIP_CAICOS:
1735                 rdev->config.evergreen.num_ses = 1;
1736                 rdev->config.evergreen.max_pipes = 4;
1737                 rdev->config.evergreen.max_tile_pipes = 2;
1738                 rdev->config.evergreen.max_simds = 2;
1739                 rdev->config.evergreen.max_backends = 1 * rdev->config.evergreen.num_ses;
1740                 rdev->config.evergreen.max_gprs = 256;
1741                 rdev->config.evergreen.max_threads = 192;
1742                 rdev->config.evergreen.max_gs_threads = 16;
1743                 rdev->config.evergreen.max_stack_entries = 256;
1744                 rdev->config.evergreen.sx_num_of_sets = 4;
1745                 rdev->config.evergreen.sx_max_export_size = 128;
1746                 rdev->config.evergreen.sx_max_export_pos_size = 32;
1747                 rdev->config.evergreen.sx_max_export_smx_size = 96;
1748                 rdev->config.evergreen.max_hw_contexts = 4;
1749                 rdev->config.evergreen.sq_num_cf_insts = 1;
1750
1751                 rdev->config.evergreen.sc_prim_fifo_size = 0x40;
1752                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1753                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1754                 break;
1755         }
1756
1757         /* Initialize HDP */
1758         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1759                 WREG32((0x2c14 + j), 0x00000000);
1760                 WREG32((0x2c18 + j), 0x00000000);
1761                 WREG32((0x2c1c + j), 0x00000000);
1762                 WREG32((0x2c20 + j), 0x00000000);
1763                 WREG32((0x2c24 + j), 0x00000000);
1764         }
1765
1766         WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
1767
1768         cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & ~2;
1769
1770         cc_gc_shader_pipe_config |=
1771                 INACTIVE_QD_PIPES((EVERGREEN_MAX_PIPES_MASK << rdev->config.evergreen.max_pipes)
1772                                   & EVERGREEN_MAX_PIPES_MASK);
1773         cc_gc_shader_pipe_config |=
1774                 INACTIVE_SIMDS((EVERGREEN_MAX_SIMDS_MASK << rdev->config.evergreen.max_simds)
1775                                & EVERGREEN_MAX_SIMDS_MASK);
1776
1777         cc_rb_backend_disable =
1778                 BACKEND_DISABLE((EVERGREEN_MAX_BACKENDS_MASK << rdev->config.evergreen.max_backends)
1779                                 & EVERGREEN_MAX_BACKENDS_MASK);
1780
1781
1782         mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
1783         if (rdev->flags & RADEON_IS_IGP)
1784                 mc_arb_ramcfg = RREG32(FUS_MC_ARB_RAMCFG);
1785         else
1786                 mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
1787
1788         switch (rdev->config.evergreen.max_tile_pipes) {
1789         case 1:
1790         default:
1791                 gb_addr_config |= NUM_PIPES(0);
1792                 break;
1793         case 2:
1794                 gb_addr_config |= NUM_PIPES(1);
1795                 break;
1796         case 4:
1797                 gb_addr_config |= NUM_PIPES(2);
1798                 break;
1799         case 8:
1800                 gb_addr_config |= NUM_PIPES(3);
1801                 break;
1802         }
1803
1804         gb_addr_config |= PIPE_INTERLEAVE_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
1805         gb_addr_config |= BANK_INTERLEAVE_SIZE(0);
1806         gb_addr_config |= NUM_SHADER_ENGINES(rdev->config.evergreen.num_ses - 1);
1807         gb_addr_config |= SHADER_ENGINE_TILE_SIZE(1);
1808         gb_addr_config |= NUM_GPUS(0); /* Hemlock? */
1809         gb_addr_config |= MULTI_GPU_TILE_SIZE(2);
1810
1811         if (((mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT) > 2)
1812                 gb_addr_config |= ROW_SIZE(2);
1813         else
1814                 gb_addr_config |= ROW_SIZE((mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT);
1815
1816         if (rdev->ddev->pdev->device == 0x689e) {
1817                 u32 efuse_straps_4;
1818                 u32 efuse_straps_3;
1819                 u8 efuse_box_bit_131_124;
1820
1821                 WREG32(RCU_IND_INDEX, 0x204);
1822                 efuse_straps_4 = RREG32(RCU_IND_DATA);
1823                 WREG32(RCU_IND_INDEX, 0x203);
1824                 efuse_straps_3 = RREG32(RCU_IND_DATA);
1825                 efuse_box_bit_131_124 = (u8)(((efuse_straps_4 & 0xf) << 4) | ((efuse_straps_3 & 0xf0000000) >> 28));
1826
1827                 switch(efuse_box_bit_131_124) {
1828                 case 0x00:
1829                         gb_backend_map = 0x76543210;
1830                         break;
1831                 case 0x55:
1832                         gb_backend_map = 0x77553311;
1833                         break;
1834                 case 0x56:
1835                         gb_backend_map = 0x77553300;
1836                         break;
1837                 case 0x59:
1838                         gb_backend_map = 0x77552211;
1839                         break;
1840                 case 0x66:
1841                         gb_backend_map = 0x77443300;
1842                         break;
1843                 case 0x99:
1844                         gb_backend_map = 0x66552211;
1845                         break;
1846                 case 0x5a:
1847                         gb_backend_map = 0x77552200;
1848                         break;
1849                 case 0xaa:
1850                         gb_backend_map = 0x66442200;
1851                         break;
1852                 case 0x95:
1853                         gb_backend_map = 0x66553311;
1854                         break;
1855                 default:
1856                         DRM_ERROR("bad backend map, using default\n");
1857                         gb_backend_map =
1858                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1859                                                                        rdev->config.evergreen.max_tile_pipes,
1860                                                                        rdev->config.evergreen.max_backends,
1861                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1862                                                                    rdev->config.evergreen.max_backends) &
1863                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1864                         break;
1865                 }
1866         } else if (rdev->ddev->pdev->device == 0x68b9) {
1867                 u32 efuse_straps_3;
1868                 u8 efuse_box_bit_127_124;
1869
1870                 WREG32(RCU_IND_INDEX, 0x203);
1871                 efuse_straps_3 = RREG32(RCU_IND_DATA);
1872                 efuse_box_bit_127_124 = (u8)((efuse_straps_3 & 0xF0000000) >> 28);
1873
1874                 switch(efuse_box_bit_127_124) {
1875                 case 0x0:
1876                         gb_backend_map = 0x00003210;
1877                         break;
1878                 case 0x5:
1879                 case 0x6:
1880                 case 0x9:
1881                 case 0xa:
1882                         gb_backend_map = 0x00003311;
1883                         break;
1884                 default:
1885                         DRM_ERROR("bad backend map, using default\n");
1886                         gb_backend_map =
1887                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1888                                                                        rdev->config.evergreen.max_tile_pipes,
1889                                                                        rdev->config.evergreen.max_backends,
1890                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1891                                                                    rdev->config.evergreen.max_backends) &
1892                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1893                         break;
1894                 }
1895         } else {
1896                 switch (rdev->family) {
1897                 case CHIP_CYPRESS:
1898                 case CHIP_HEMLOCK:
1899                 case CHIP_BARTS:
1900                         gb_backend_map = 0x66442200;
1901                         break;
1902                 case CHIP_JUNIPER:
1903                         gb_backend_map = 0x00006420;
1904                         break;
1905                 default:
1906                         gb_backend_map =
1907                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1908                                                                        rdev->config.evergreen.max_tile_pipes,
1909                                                                        rdev->config.evergreen.max_backends,
1910                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1911                                                                          rdev->config.evergreen.max_backends) &
1912                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1913                 }
1914         }
1915
1916         /* setup tiling info dword.  gb_addr_config is not adequate since it does
1917          * not have bank info, so create a custom tiling dword.
1918          * bits 3:0   num_pipes
1919          * bits 7:4   num_banks
1920          * bits 11:8  group_size
1921          * bits 15:12 row_size
1922          */
1923         rdev->config.evergreen.tile_config = 0;
1924         switch (rdev->config.evergreen.max_tile_pipes) {
1925         case 1:
1926         default:
1927                 rdev->config.evergreen.tile_config |= (0 << 0);
1928                 break;
1929         case 2:
1930                 rdev->config.evergreen.tile_config |= (1 << 0);
1931                 break;
1932         case 4:
1933                 rdev->config.evergreen.tile_config |= (2 << 0);
1934                 break;
1935         case 8:
1936                 rdev->config.evergreen.tile_config |= (3 << 0);
1937                 break;
1938         }
1939         /* num banks is 8 on all fusion asics */
1940         if (rdev->flags & RADEON_IS_IGP)
1941                 rdev->config.evergreen.tile_config |= 8 << 4;
1942         else
1943                 rdev->config.evergreen.tile_config |=
1944                         ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
1945         rdev->config.evergreen.tile_config |=
1946                 ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) << 8;
1947         rdev->config.evergreen.tile_config |=
1948                 ((gb_addr_config & 0x30000000) >> 28) << 12;
1949
1950         WREG32(GB_BACKEND_MAP, gb_backend_map);
1951         WREG32(GB_ADDR_CONFIG, gb_addr_config);
1952         WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
1953         WREG32(HDP_ADDR_CONFIG, gb_addr_config);
1954
1955         evergreen_program_channel_remap(rdev);
1956
1957         num_shader_engines = ((RREG32(GB_ADDR_CONFIG) & NUM_SHADER_ENGINES(3)) >> 12) + 1;
1958         grbm_gfx_index = INSTANCE_BROADCAST_WRITES;
1959
1960         for (i = 0; i < rdev->config.evergreen.num_ses; i++) {
1961                 u32 rb = cc_rb_backend_disable | (0xf0 << 16);
1962                 u32 sp = cc_gc_shader_pipe_config;
1963                 u32 gfx = grbm_gfx_index | SE_INDEX(i);
1964
1965                 if (i == num_shader_engines) {
1966                         rb |= BACKEND_DISABLE(EVERGREEN_MAX_BACKENDS_MASK);
1967                         sp |= INACTIVE_SIMDS(EVERGREEN_MAX_SIMDS_MASK);
1968                 }
1969
1970                 WREG32(GRBM_GFX_INDEX, gfx);
1971                 WREG32(RLC_GFX_INDEX, gfx);
1972
1973                 WREG32(CC_RB_BACKEND_DISABLE, rb);
1974                 WREG32(CC_SYS_RB_BACKEND_DISABLE, rb);
1975                 WREG32(GC_USER_RB_BACKEND_DISABLE, rb);
1976                 WREG32(CC_GC_SHADER_PIPE_CONFIG, sp);
1977         }
1978
1979         grbm_gfx_index |= SE_BROADCAST_WRITES;
1980         WREG32(GRBM_GFX_INDEX, grbm_gfx_index);
1981         WREG32(RLC_GFX_INDEX, grbm_gfx_index);
1982
1983         WREG32(CGTS_SYS_TCC_DISABLE, 0);
1984         WREG32(CGTS_TCC_DISABLE, 0);
1985         WREG32(CGTS_USER_SYS_TCC_DISABLE, 0);
1986         WREG32(CGTS_USER_TCC_DISABLE, 0);
1987
1988         /* set HW defaults for 3D engine */
1989         WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
1990                                      ROQ_IB2_START(0x2b)));
1991
1992         WREG32(CP_MEQ_THRESHOLDS, STQ_SPLIT(0x30));
1993
1994         WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO |
1995                              SYNC_GRADIENT |
1996                              SYNC_WALKER |
1997                              SYNC_ALIGNER));
1998
1999         sx_debug_1 = RREG32(SX_DEBUG_1);
2000         sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
2001         WREG32(SX_DEBUG_1, sx_debug_1);
2002
2003
2004         smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
2005         smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
2006         smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.evergreen.sx_num_of_sets);
2007         WREG32(SMX_DC_CTL0, smx_dc_ctl0);
2008
2009         WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_size / 4) - 1) |
2010                                         POSITION_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_pos_size / 4) - 1) |
2011                                         SMX_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_smx_size / 4) - 1)));
2012
2013         WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.evergreen.sc_prim_fifo_size) |
2014                                  SC_HIZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_hiz_tile_fifo_size) |
2015                                  SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_earlyz_tile_fifo_size)));
2016
2017         WREG32(VGT_NUM_INSTANCES, 1);
2018         WREG32(SPI_CONFIG_CNTL, 0);
2019         WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));
2020         WREG32(CP_PERFMON_CNTL, 0);
2021
2022         WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.evergreen.sq_num_cf_insts) |
2023                                   FETCH_FIFO_HIWATER(0x4) |
2024                                   DONE_FIFO_HIWATER(0xe0) |
2025                                   ALU_UPDATE_FIFO_HIWATER(0x8)));
2026
2027         sq_config = RREG32(SQ_CONFIG);
2028         sq_config &= ~(PS_PRIO(3) |
2029                        VS_PRIO(3) |
2030                        GS_PRIO(3) |
2031                        ES_PRIO(3));
2032         sq_config |= (VC_ENABLE |
2033                       EXPORT_SRC_C |
2034                       PS_PRIO(0) |
2035                       VS_PRIO(1) |
2036                       GS_PRIO(2) |
2037                       ES_PRIO(3));
2038
2039         switch (rdev->family) {
2040         case CHIP_CEDAR:
2041         case CHIP_PALM:
2042         case CHIP_CAICOS:
2043                 /* no vertex cache */
2044                 sq_config &= ~VC_ENABLE;
2045                 break;
2046         default:
2047                 break;
2048         }
2049
2050         sq_lds_resource_mgmt = RREG32(SQ_LDS_RESOURCE_MGMT);
2051
2052         sq_gpr_resource_mgmt_1 = NUM_PS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2))* 12 / 32);
2053         sq_gpr_resource_mgmt_1 |= NUM_VS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 6 / 32);
2054         sq_gpr_resource_mgmt_1 |= NUM_CLAUSE_TEMP_GPRS(4);
2055         sq_gpr_resource_mgmt_2 = NUM_GS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 4 / 32);
2056         sq_gpr_resource_mgmt_2 |= NUM_ES_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 4 / 32);
2057         sq_gpr_resource_mgmt_3 = NUM_HS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 3 / 32);
2058         sq_gpr_resource_mgmt_3 |= NUM_LS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 3 / 32);
2059
2060         switch (rdev->family) {
2061         case CHIP_CEDAR:
2062         case CHIP_PALM:
2063                 ps_thread_count = 96;
2064                 break;
2065         default:
2066                 ps_thread_count = 128;
2067                 break;
2068         }
2069
2070         sq_thread_resource_mgmt = NUM_PS_THREADS(ps_thread_count);
2071         sq_thread_resource_mgmt |= NUM_VS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
2072         sq_thread_resource_mgmt |= NUM_GS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
2073         sq_thread_resource_mgmt |= NUM_ES_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
2074         sq_thread_resource_mgmt_2 = NUM_HS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
2075         sq_thread_resource_mgmt_2 |= NUM_LS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
2076
2077         sq_stack_resource_mgmt_1 = NUM_PS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2078         sq_stack_resource_mgmt_1 |= NUM_VS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2079         sq_stack_resource_mgmt_2 = NUM_GS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2080         sq_stack_resource_mgmt_2 |= NUM_ES_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2081         sq_stack_resource_mgmt_3 = NUM_HS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2082         sq_stack_resource_mgmt_3 |= NUM_LS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
2083
2084         WREG32(SQ_CONFIG, sq_config);
2085         WREG32(SQ_GPR_RESOURCE_MGMT_1, sq_gpr_resource_mgmt_1);
2086         WREG32(SQ_GPR_RESOURCE_MGMT_2, sq_gpr_resource_mgmt_2);
2087         WREG32(SQ_GPR_RESOURCE_MGMT_3, sq_gpr_resource_mgmt_3);
2088         WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
2089         WREG32(SQ_THREAD_RESOURCE_MGMT_2, sq_thread_resource_mgmt_2);
2090         WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
2091         WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
2092         WREG32(SQ_STACK_RESOURCE_MGMT_3, sq_stack_resource_mgmt_3);
2093         WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0);
2094         WREG32(SQ_LDS_RESOURCE_MGMT, sq_lds_resource_mgmt);
2095
2096         WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
2097                                           FORCE_EOV_MAX_REZ_CNT(255)));
2098
2099         switch (rdev->family) {
2100         case CHIP_CEDAR:
2101         case CHIP_PALM:
2102         case CHIP_CAICOS:
2103                 vgt_cache_invalidation = CACHE_INVALIDATION(TC_ONLY);
2104                 break;
2105         default:
2106                 vgt_cache_invalidation = CACHE_INVALIDATION(VC_AND_TC);
2107                 break;
2108         }
2109         vgt_cache_invalidation |= AUTO_INVLD_EN(ES_AND_GS_AUTO);
2110         WREG32(VGT_CACHE_INVALIDATION, vgt_cache_invalidation);
2111
2112         WREG32(VGT_GS_VERTEX_REUSE, 16);
2113         WREG32(PA_SU_LINE_STIPPLE_VALUE, 0);
2114         WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
2115
2116         WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, 14);
2117         WREG32(VGT_OUT_DEALLOC_CNTL, 16);
2118
2119         WREG32(CB_PERF_CTR0_SEL_0, 0);
2120         WREG32(CB_PERF_CTR0_SEL_1, 0);
2121         WREG32(CB_PERF_CTR1_SEL_0, 0);
2122         WREG32(CB_PERF_CTR1_SEL_1, 0);
2123         WREG32(CB_PERF_CTR2_SEL_0, 0);
2124         WREG32(CB_PERF_CTR2_SEL_1, 0);
2125         WREG32(CB_PERF_CTR3_SEL_0, 0);
2126         WREG32(CB_PERF_CTR3_SEL_1, 0);
2127
2128         /* clear render buffer base addresses */
2129         WREG32(CB_COLOR0_BASE, 0);
2130         WREG32(CB_COLOR1_BASE, 0);
2131         WREG32(CB_COLOR2_BASE, 0);
2132         WREG32(CB_COLOR3_BASE, 0);
2133         WREG32(CB_COLOR4_BASE, 0);
2134         WREG32(CB_COLOR5_BASE, 0);
2135         WREG32(CB_COLOR6_BASE, 0);
2136         WREG32(CB_COLOR7_BASE, 0);
2137         WREG32(CB_COLOR8_BASE, 0);
2138         WREG32(CB_COLOR9_BASE, 0);
2139         WREG32(CB_COLOR10_BASE, 0);
2140         WREG32(CB_COLOR11_BASE, 0);
2141
2142         /* set the shader const cache sizes to 0 */
2143         for (i = SQ_ALU_CONST_BUFFER_SIZE_PS_0; i < 0x28200; i += 4)
2144                 WREG32(i, 0);
2145         for (i = SQ_ALU_CONST_BUFFER_SIZE_HS_0; i < 0x29000; i += 4)
2146                 WREG32(i, 0);
2147
2148         tmp = RREG32(HDP_MISC_CNTL);
2149         tmp |= HDP_FLUSH_INVALIDATE_CACHE;
2150         WREG32(HDP_MISC_CNTL, tmp);
2151
2152         hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
2153         WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
2154
2155         WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
2156
2157         udelay(50);
2158
2159 }
2160
2161 int evergreen_mc_init(struct radeon_device *rdev)
2162 {
2163         u32 tmp;
2164         int chansize, numchan;
2165
2166         /* Get VRAM informations */
2167         rdev->mc.vram_is_ddr = true;
2168         tmp = RREG32(MC_ARB_RAMCFG);
2169         if (tmp & CHANSIZE_OVERRIDE) {
2170                 chansize = 16;
2171         } else if (tmp & CHANSIZE_MASK) {
2172                 chansize = 64;
2173         } else {
2174                 chansize = 32;
2175         }
2176         tmp = RREG32(MC_SHARED_CHMAP);
2177         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
2178         case 0:
2179         default:
2180                 numchan = 1;
2181                 break;
2182         case 1:
2183                 numchan = 2;
2184                 break;
2185         case 2:
2186                 numchan = 4;
2187                 break;
2188         case 3:
2189                 numchan = 8;
2190                 break;
2191         }
2192         rdev->mc.vram_width = numchan * chansize;
2193         /* Could aper size report 0 ? */
2194         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
2195         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
2196         /* Setup GPU memory space */
2197         if (rdev->flags & RADEON_IS_IGP) {
2198                 /* size in bytes on fusion */
2199                 rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
2200                 rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
2201         } else {
2202                 /* size in MB on evergreen */
2203                 rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
2204                 rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
2205         }
2206         rdev->mc.visible_vram_size = rdev->mc.aper_size;
2207         r700_vram_gtt_location(rdev, &rdev->mc);
2208         radeon_update_bandwidth_info(rdev);
2209
2210         return 0;
2211 }
2212
2213 bool evergreen_gpu_is_lockup(struct radeon_device *rdev)
2214 {
2215         u32 srbm_status;
2216         u32 grbm_status;
2217         u32 grbm_status_se0, grbm_status_se1;
2218         struct r100_gpu_lockup *lockup = &rdev->config.evergreen.lockup;
2219         int r;
2220
2221         srbm_status = RREG32(SRBM_STATUS);
2222         grbm_status = RREG32(GRBM_STATUS);
2223         grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
2224         grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
2225         if (!(grbm_status & GUI_ACTIVE)) {
2226                 r100_gpu_lockup_update(lockup, &rdev->cp);
2227                 return false;
2228         }
2229         /* force CP activities */
2230         r = radeon_ring_lock(rdev, 2);
2231         if (!r) {
2232                 /* PACKET2 NOP */
2233                 radeon_ring_write(rdev, 0x80000000);
2234                 radeon_ring_write(rdev, 0x80000000);
2235                 radeon_ring_unlock_commit(rdev);
2236         }
2237         rdev->cp.rptr = RREG32(CP_RB_RPTR);
2238         return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
2239 }
2240
2241 static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
2242 {
2243         struct evergreen_mc_save save;
2244         u32 grbm_reset = 0;
2245
2246         if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
2247                 return 0;
2248
2249         dev_info(rdev->dev, "GPU softreset \n");
2250         dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
2251                 RREG32(GRBM_STATUS));
2252         dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
2253                 RREG32(GRBM_STATUS_SE0));
2254         dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
2255                 RREG32(GRBM_STATUS_SE1));
2256         dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
2257                 RREG32(SRBM_STATUS));
2258         evergreen_mc_stop(rdev, &save);
2259         if (evergreen_mc_wait_for_idle(rdev)) {
2260                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
2261         }
2262         /* Disable CP parsing/prefetching */
2263         WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
2264
2265         /* reset all the gfx blocks */
2266         grbm_reset = (SOFT_RESET_CP |
2267                       SOFT_RESET_CB |
2268                       SOFT_RESET_DB |
2269                       SOFT_RESET_PA |
2270                       SOFT_RESET_SC |
2271                       SOFT_RESET_SPI |
2272                       SOFT_RESET_SH |
2273                       SOFT_RESET_SX |
2274                       SOFT_RESET_TC |
2275                       SOFT_RESET_TA |
2276                       SOFT_RESET_VC |
2277                       SOFT_RESET_VGT);
2278
2279         dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
2280         WREG32(GRBM_SOFT_RESET, grbm_reset);
2281         (void)RREG32(GRBM_SOFT_RESET);
2282         udelay(50);
2283         WREG32(GRBM_SOFT_RESET, 0);
2284         (void)RREG32(GRBM_SOFT_RESET);
2285         /* Wait a little for things to settle down */
2286         udelay(50);
2287         dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
2288                 RREG32(GRBM_STATUS));
2289         dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
2290                 RREG32(GRBM_STATUS_SE0));
2291         dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
2292                 RREG32(GRBM_STATUS_SE1));
2293         dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
2294                 RREG32(SRBM_STATUS));
2295         evergreen_mc_resume(rdev, &save);
2296         return 0;
2297 }
2298
2299 int evergreen_asic_reset(struct radeon_device *rdev)
2300 {
2301         return evergreen_gpu_soft_reset(rdev);
2302 }
2303
2304 /* Interrupts */
2305
2306 u32 evergreen_get_vblank_counter(struct radeon_device *rdev, int crtc)
2307 {
2308         switch (crtc) {
2309         case 0:
2310                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC0_REGISTER_OFFSET);
2311         case 1:
2312                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC1_REGISTER_OFFSET);
2313         case 2:
2314                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC2_REGISTER_OFFSET);
2315         case 3:
2316                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC3_REGISTER_OFFSET);
2317         case 4:
2318                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC4_REGISTER_OFFSET);
2319         case 5:
2320                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC5_REGISTER_OFFSET);
2321         default:
2322                 return 0;
2323         }
2324 }
2325
2326 void evergreen_disable_interrupt_state(struct radeon_device *rdev)
2327 {
2328         u32 tmp;
2329
2330         WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
2331         WREG32(GRBM_INT_CNTL, 0);
2332         WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
2333         WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
2334         if (!(rdev->flags & RADEON_IS_IGP)) {
2335                 WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
2336                 WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
2337                 WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
2338                 WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
2339         }
2340
2341         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
2342         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
2343         if (!(rdev->flags & RADEON_IS_IGP)) {
2344                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
2345                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
2346                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
2347                 WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
2348         }
2349
2350         WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
2351         WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
2352
2353         tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2354         WREG32(DC_HPD1_INT_CONTROL, tmp);
2355         tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2356         WREG32(DC_HPD2_INT_CONTROL, tmp);
2357         tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2358         WREG32(DC_HPD3_INT_CONTROL, tmp);
2359         tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2360         WREG32(DC_HPD4_INT_CONTROL, tmp);
2361         tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2362         WREG32(DC_HPD5_INT_CONTROL, tmp);
2363         tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2364         WREG32(DC_HPD6_INT_CONTROL, tmp);
2365
2366 }
2367
2368 int evergreen_irq_set(struct radeon_device *rdev)
2369 {
2370         u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
2371         u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
2372         u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
2373         u32 grbm_int_cntl = 0;
2374         u32 grph1 = 0, grph2 = 0, grph3 = 0, grph4 = 0, grph5 = 0, grph6 = 0;
2375
2376         if (!rdev->irq.installed) {
2377                 WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
2378                 return -EINVAL;
2379         }
2380         /* don't enable anything if the ih is disabled */
2381         if (!rdev->ih.enabled) {
2382                 r600_disable_interrupts(rdev);
2383                 /* force the active interrupt state to all disabled */
2384                 evergreen_disable_interrupt_state(rdev);
2385                 return 0;
2386         }
2387
2388         hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
2389         hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
2390         hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
2391         hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
2392         hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
2393         hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
2394
2395         if (rdev->irq.sw_int) {
2396                 DRM_DEBUG("evergreen_irq_set: sw int\n");
2397                 cp_int_cntl |= RB_INT_ENABLE;
2398                 cp_int_cntl |= TIME_STAMP_INT_ENABLE;
2399         }
2400         if (rdev->irq.crtc_vblank_int[0] ||
2401             rdev->irq.pflip[0]) {
2402                 DRM_DEBUG("evergreen_irq_set: vblank 0\n");
2403                 crtc1 |= VBLANK_INT_MASK;
2404         }
2405         if (rdev->irq.crtc_vblank_int[1] ||
2406             rdev->irq.pflip[1]) {
2407                 DRM_DEBUG("evergreen_irq_set: vblank 1\n");
2408                 crtc2 |= VBLANK_INT_MASK;
2409         }
2410         if (rdev->irq.crtc_vblank_int[2] ||
2411             rdev->irq.pflip[2]) {
2412                 DRM_DEBUG("evergreen_irq_set: vblank 2\n");
2413                 crtc3 |= VBLANK_INT_MASK;
2414         }
2415         if (rdev->irq.crtc_vblank_int[3] ||
2416             rdev->irq.pflip[3]) {
2417                 DRM_DEBUG("evergreen_irq_set: vblank 3\n");
2418                 crtc4 |= VBLANK_INT_MASK;
2419         }
2420         if (rdev->irq.crtc_vblank_int[4] ||
2421             rdev->irq.pflip[4]) {
2422                 DRM_DEBUG("evergreen_irq_set: vblank 4\n");
2423                 crtc5 |= VBLANK_INT_MASK;
2424         }
2425         if (rdev->irq.crtc_vblank_int[5] ||
2426             rdev->irq.pflip[5]) {
2427                 DRM_DEBUG("evergreen_irq_set: vblank 5\n");
2428                 crtc6 |= VBLANK_INT_MASK;
2429         }
2430         if (rdev->irq.hpd[0]) {
2431                 DRM_DEBUG("evergreen_irq_set: hpd 1\n");
2432                 hpd1 |= DC_HPDx_INT_EN;
2433         }
2434         if (rdev->irq.hpd[1]) {
2435                 DRM_DEBUG("evergreen_irq_set: hpd 2\n");
2436                 hpd2 |= DC_HPDx_INT_EN;
2437         }
2438         if (rdev->irq.hpd[2]) {
2439                 DRM_DEBUG("evergreen_irq_set: hpd 3\n");
2440                 hpd3 |= DC_HPDx_INT_EN;
2441         }
2442         if (rdev->irq.hpd[3]) {
2443                 DRM_DEBUG("evergreen_irq_set: hpd 4\n");
2444                 hpd4 |= DC_HPDx_INT_EN;
2445         }
2446         if (rdev->irq.hpd[4]) {
2447                 DRM_DEBUG("evergreen_irq_set: hpd 5\n");
2448                 hpd5 |= DC_HPDx_INT_EN;
2449         }
2450         if (rdev->irq.hpd[5]) {
2451                 DRM_DEBUG("evergreen_irq_set: hpd 6\n");
2452                 hpd6 |= DC_HPDx_INT_EN;
2453         }
2454         if (rdev->irq.gui_idle) {
2455                 DRM_DEBUG("gui idle\n");
2456                 grbm_int_cntl |= GUI_IDLE_INT_ENABLE;
2457         }
2458
2459         WREG32(CP_INT_CNTL, cp_int_cntl);
2460         WREG32(GRBM_INT_CNTL, grbm_int_cntl);
2461
2462         WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
2463         WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
2464         if (!(rdev->flags & RADEON_IS_IGP)) {
2465                 WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, crtc3);
2466                 WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, crtc4);
2467                 WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, crtc5);
2468                 WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, crtc6);
2469         }
2470
2471         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, grph1);
2472         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, grph2);
2473         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, grph3);
2474         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, grph4);
2475         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, grph5);
2476         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, grph6);
2477
2478         WREG32(DC_HPD1_INT_CONTROL, hpd1);
2479         WREG32(DC_HPD2_INT_CONTROL, hpd2);
2480         WREG32(DC_HPD3_INT_CONTROL, hpd3);
2481         WREG32(DC_HPD4_INT_CONTROL, hpd4);
2482         WREG32(DC_HPD5_INT_CONTROL, hpd5);
2483         WREG32(DC_HPD6_INT_CONTROL, hpd6);
2484
2485         return 0;
2486 }
2487
2488 static inline void evergreen_irq_ack(struct radeon_device *rdev)
2489 {
2490         u32 tmp;
2491
2492         rdev->irq.stat_regs.evergreen.disp_int = RREG32(DISP_INTERRUPT_STATUS);
2493         rdev->irq.stat_regs.evergreen.disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
2494         rdev->irq.stat_regs.evergreen.disp_int_cont2 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE2);
2495         rdev->irq.stat_regs.evergreen.disp_int_cont3 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE3);
2496         rdev->irq.stat_regs.evergreen.disp_int_cont4 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE4);
2497         rdev->irq.stat_regs.evergreen.disp_int_cont5 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE5);
2498         rdev->irq.stat_regs.evergreen.d1grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET);
2499         rdev->irq.stat_regs.evergreen.d2grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET);
2500         rdev->irq.stat_regs.evergreen.d3grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET);
2501         rdev->irq.stat_regs.evergreen.d4grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET);
2502         rdev->irq.stat_regs.evergreen.d5grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET);
2503         rdev->irq.stat_regs.evergreen.d6grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET);
2504
2505         if (rdev->irq.stat_regs.evergreen.d1grph_int & GRPH_PFLIP_INT_OCCURRED)
2506                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2507         if (rdev->irq.stat_regs.evergreen.d2grph_int & GRPH_PFLIP_INT_OCCURRED)
2508                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2509         if (rdev->irq.stat_regs.evergreen.d3grph_int & GRPH_PFLIP_INT_OCCURRED)
2510                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2511         if (rdev->irq.stat_regs.evergreen.d4grph_int & GRPH_PFLIP_INT_OCCURRED)
2512                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2513         if (rdev->irq.stat_regs.evergreen.d5grph_int & GRPH_PFLIP_INT_OCCURRED)
2514                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2515         if (rdev->irq.stat_regs.evergreen.d6grph_int & GRPH_PFLIP_INT_OCCURRED)
2516                 WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
2517
2518         if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT)
2519                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VBLANK_ACK);
2520         if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT)
2521                 WREG32(VLINE_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VLINE_ACK);
2522
2523         if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT)
2524                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VBLANK_ACK);
2525         if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT)
2526                 WREG32(VLINE_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VLINE_ACK);
2527
2528         if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT)
2529                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VBLANK_ACK);
2530         if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT)
2531                 WREG32(VLINE_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VLINE_ACK);
2532
2533         if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT)
2534                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VBLANK_ACK);
2535         if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT)
2536                 WREG32(VLINE_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VLINE_ACK);
2537
2538         if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT)
2539                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VBLANK_ACK);
2540         if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT)
2541                 WREG32(VLINE_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VLINE_ACK);
2542
2543         if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT)
2544                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VBLANK_ACK);
2545         if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT)
2546                 WREG32(VLINE_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VLINE_ACK);
2547
2548         if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
2549                 tmp = RREG32(DC_HPD1_INT_CONTROL);
2550                 tmp |= DC_HPDx_INT_ACK;
2551                 WREG32(DC_HPD1_INT_CONTROL, tmp);
2552         }
2553         if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
2554                 tmp = RREG32(DC_HPD2_INT_CONTROL);
2555                 tmp |= DC_HPDx_INT_ACK;
2556                 WREG32(DC_HPD2_INT_CONTROL, tmp);
2557         }
2558         if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
2559                 tmp = RREG32(DC_HPD3_INT_CONTROL);
2560                 tmp |= DC_HPDx_INT_ACK;
2561                 WREG32(DC_HPD3_INT_CONTROL, tmp);
2562         }
2563         if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
2564                 tmp = RREG32(DC_HPD4_INT_CONTROL);
2565                 tmp |= DC_HPDx_INT_ACK;
2566                 WREG32(DC_HPD4_INT_CONTROL, tmp);
2567         }
2568         if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
2569                 tmp = RREG32(DC_HPD5_INT_CONTROL);
2570                 tmp |= DC_HPDx_INT_ACK;
2571                 WREG32(DC_HPD5_INT_CONTROL, tmp);
2572         }
2573         if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
2574                 tmp = RREG32(DC_HPD5_INT_CONTROL);
2575                 tmp |= DC_HPDx_INT_ACK;
2576                 WREG32(DC_HPD6_INT_CONTROL, tmp);
2577         }
2578 }
2579
2580 void evergreen_irq_disable(struct radeon_device *rdev)
2581 {
2582         r600_disable_interrupts(rdev);
2583         /* Wait and acknowledge irq */
2584         mdelay(1);
2585         evergreen_irq_ack(rdev);
2586         evergreen_disable_interrupt_state(rdev);
2587 }
2588
2589 void evergreen_irq_suspend(struct radeon_device *rdev)
2590 {
2591         evergreen_irq_disable(rdev);
2592         r600_rlc_stop(rdev);
2593 }
2594
2595 static inline u32 evergreen_get_ih_wptr(struct radeon_device *rdev)
2596 {
2597         u32 wptr, tmp;
2598
2599         if (rdev->wb.enabled)
2600                 wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
2601         else
2602                 wptr = RREG32(IH_RB_WPTR);
2603
2604         if (wptr & RB_OVERFLOW) {
2605                 /* When a ring buffer overflow happen start parsing interrupt
2606                  * from the last not overwritten vector (wptr + 16). Hopefully
2607                  * this should allow us to catchup.
2608                  */
2609                 dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, %d, %d)\n",
2610                         wptr, rdev->ih.rptr, (wptr + 16) + rdev->ih.ptr_mask);
2611                 rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
2612                 tmp = RREG32(IH_RB_CNTL);
2613                 tmp |= IH_WPTR_OVERFLOW_CLEAR;
2614                 WREG32(IH_RB_CNTL, tmp);
2615         }
2616         return (wptr & rdev->ih.ptr_mask);
2617 }
2618
2619 int evergreen_irq_process(struct radeon_device *rdev)
2620 {
2621         u32 wptr = evergreen_get_ih_wptr(rdev);
2622         u32 rptr = rdev->ih.rptr;
2623         u32 src_id, src_data;
2624         u32 ring_index;
2625         unsigned long flags;
2626         bool queue_hotplug = false;
2627
2628         DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
2629         if (!rdev->ih.enabled)
2630                 return IRQ_NONE;
2631
2632         spin_lock_irqsave(&rdev->ih.lock, flags);
2633
2634         if (rptr == wptr) {
2635                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2636                 return IRQ_NONE;
2637         }
2638         if (rdev->shutdown) {
2639                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2640                 return IRQ_NONE;
2641         }
2642
2643 restart_ih:
2644         /* display interrupts */
2645         evergreen_irq_ack(rdev);
2646
2647         rdev->ih.wptr = wptr;
2648         while (rptr != wptr) {
2649                 /* wptr/rptr are in bytes! */
2650                 ring_index = rptr / 4;
2651                 src_id =  le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff;
2652                 src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff;
2653
2654                 switch (src_id) {
2655                 case 1: /* D1 vblank/vline */
2656                         switch (src_data) {
2657                         case 0: /* D1 vblank */
2658                                 if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
2659                                         if (rdev->irq.crtc_vblank_int[0]) {
2660                                                 drm_handle_vblank(rdev->ddev, 0);
2661                                                 rdev->pm.vblank_sync = true;
2662                                                 wake_up(&rdev->irq.vblank_queue);
2663                                         }
2664                                         if (rdev->irq.pflip[0])
2665                                                 radeon_crtc_handle_flip(rdev, 0);
2666                                         rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
2667                                         DRM_DEBUG("IH: D1 vblank\n");
2668                                 }
2669                                 break;
2670                         case 1: /* D1 vline */
2671                                 if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
2672                                         rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
2673                                         DRM_DEBUG("IH: D1 vline\n");
2674                                 }
2675                                 break;
2676                         default:
2677                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2678                                 break;
2679                         }
2680                         break;
2681                 case 2: /* D2 vblank/vline */
2682                         switch (src_data) {
2683                         case 0: /* D2 vblank */
2684                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
2685                                         if (rdev->irq.crtc_vblank_int[1]) {
2686                                                 drm_handle_vblank(rdev->ddev, 1);
2687                                                 rdev->pm.vblank_sync = true;
2688                                                 wake_up(&rdev->irq.vblank_queue);
2689                                         }
2690                                         if (rdev->irq.pflip[1])
2691                                                 radeon_crtc_handle_flip(rdev, 1);
2692                                         rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
2693                                         DRM_DEBUG("IH: D2 vblank\n");
2694                                 }
2695                                 break;
2696                         case 1: /* D2 vline */
2697                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
2698                                         rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
2699                                         DRM_DEBUG("IH: D2 vline\n");
2700                                 }
2701                                 break;
2702                         default:
2703                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2704                                 break;
2705                         }
2706                         break;
2707                 case 3: /* D3 vblank/vline */
2708                         switch (src_data) {
2709                         case 0: /* D3 vblank */
2710                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
2711                                         if (rdev->irq.crtc_vblank_int[2]) {
2712                                                 drm_handle_vblank(rdev->ddev, 2);
2713                                                 rdev->pm.vblank_sync = true;
2714                                                 wake_up(&rdev->irq.vblank_queue);
2715                                         }
2716                                         if (rdev->irq.pflip[2])
2717                                                 radeon_crtc_handle_flip(rdev, 2);
2718                                         rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
2719                                         DRM_DEBUG("IH: D3 vblank\n");
2720                                 }
2721                                 break;
2722                         case 1: /* D3 vline */
2723                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
2724                                         rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
2725                                         DRM_DEBUG("IH: D3 vline\n");
2726                                 }
2727                                 break;
2728                         default:
2729                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2730                                 break;
2731                         }
2732                         break;
2733                 case 4: /* D4 vblank/vline */
2734                         switch (src_data) {
2735                         case 0: /* D4 vblank */
2736                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
2737                                         if (rdev->irq.crtc_vblank_int[3]) {
2738                                                 drm_handle_vblank(rdev->ddev, 3);
2739                                                 rdev->pm.vblank_sync = true;
2740                                                 wake_up(&rdev->irq.vblank_queue);
2741                                         }
2742                                         if (rdev->irq.pflip[3])
2743                                                 radeon_crtc_handle_flip(rdev, 3);
2744                                         rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
2745                                         DRM_DEBUG("IH: D4 vblank\n");
2746                                 }
2747                                 break;
2748                         case 1: /* D4 vline */
2749                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
2750                                         rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
2751                                         DRM_DEBUG("IH: D4 vline\n");
2752                                 }
2753                                 break;
2754                         default:
2755                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2756                                 break;
2757                         }
2758                         break;
2759                 case 5: /* D5 vblank/vline */
2760                         switch (src_data) {
2761                         case 0: /* D5 vblank */
2762                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
2763                                         if (rdev->irq.crtc_vblank_int[4]) {
2764                                                 drm_handle_vblank(rdev->ddev, 4);
2765                                                 rdev->pm.vblank_sync = true;
2766                                                 wake_up(&rdev->irq.vblank_queue);
2767                                         }
2768                                         if (rdev->irq.pflip[4])
2769                                                 radeon_crtc_handle_flip(rdev, 4);
2770                                         rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
2771                                         DRM_DEBUG("IH: D5 vblank\n");
2772                                 }
2773                                 break;
2774                         case 1: /* D5 vline */
2775                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
2776                                         rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
2777                                         DRM_DEBUG("IH: D5 vline\n");
2778                                 }
2779                                 break;
2780                         default:
2781                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2782                                 break;
2783                         }
2784                         break;
2785                 case 6: /* D6 vblank/vline */
2786                         switch (src_data) {
2787                         case 0: /* D6 vblank */
2788                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
2789                                         if (rdev->irq.crtc_vblank_int[5]) {
2790                                                 drm_handle_vblank(rdev->ddev, 5);
2791                                                 rdev->pm.vblank_sync = true;
2792                                                 wake_up(&rdev->irq.vblank_queue);
2793                                         }
2794                                         if (rdev->irq.pflip[5])
2795                                                 radeon_crtc_handle_flip(rdev, 5);
2796                                         rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
2797                                         DRM_DEBUG("IH: D6 vblank\n");
2798                                 }
2799                                 break;
2800                         case 1: /* D6 vline */
2801                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
2802                                         rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
2803                                         DRM_DEBUG("IH: D6 vline\n");
2804                                 }
2805                                 break;
2806                         default:
2807                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2808                                 break;
2809                         }
2810                         break;
2811                 case 42: /* HPD hotplug */
2812                         switch (src_data) {
2813                         case 0:
2814                                 if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
2815                                         rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
2816                                         queue_hotplug = true;
2817                                         DRM_DEBUG("IH: HPD1\n");
2818                                 }
2819                                 break;
2820                         case 1:
2821                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
2822                                         rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
2823                                         queue_hotplug = true;
2824                                         DRM_DEBUG("IH: HPD2\n");
2825                                 }
2826                                 break;
2827                         case 2:
2828                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
2829                                         rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
2830                                         queue_hotplug = true;
2831                                         DRM_DEBUG("IH: HPD3\n");
2832                                 }
2833                                 break;
2834                         case 3:
2835                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
2836                                         rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
2837                                         queue_hotplug = true;
2838                                         DRM_DEBUG("IH: HPD4\n");
2839                                 }
2840                                 break;
2841                         case 4:
2842                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
2843                                         rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
2844                                         queue_hotplug = true;
2845                                         DRM_DEBUG("IH: HPD5\n");
2846                                 }
2847                                 break;
2848                         case 5:
2849                                 if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
2850                                         rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
2851                                         queue_hotplug = true;
2852                                         DRM_DEBUG("IH: HPD6\n");
2853                                 }
2854                                 break;
2855                         default:
2856                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2857                                 break;
2858                         }
2859                         break;
2860                 case 176: /* CP_INT in ring buffer */
2861                 case 177: /* CP_INT in IB1 */
2862                 case 178: /* CP_INT in IB2 */
2863                         DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
2864                         radeon_fence_process(rdev);
2865                         break;
2866                 case 181: /* CP EOP event */
2867                         DRM_DEBUG("IH: CP EOP\n");
2868                         radeon_fence_process(rdev);
2869                         break;
2870                 case 233: /* GUI IDLE */
2871                         DRM_DEBUG("IH: CP EOP\n");
2872                         rdev->pm.gui_idle = true;
2873                         wake_up(&rdev->irq.idle_queue);
2874                         break;
2875                 default:
2876                         DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2877                         break;
2878                 }
2879
2880                 /* wptr/rptr are in bytes! */
2881                 rptr += 16;
2882                 rptr &= rdev->ih.ptr_mask;
2883         }
2884         /* make sure wptr hasn't changed while processing */
2885         wptr = evergreen_get_ih_wptr(rdev);
2886         if (wptr != rdev->ih.wptr)
2887                 goto restart_ih;
2888         if (queue_hotplug)
2889                 schedule_work(&rdev->hotplug_work);
2890         rdev->ih.rptr = rptr;
2891         WREG32(IH_RB_RPTR, rdev->ih.rptr);
2892         spin_unlock_irqrestore(&rdev->ih.lock, flags);
2893         return IRQ_HANDLED;
2894 }
2895
2896 static int evergreen_startup(struct radeon_device *rdev)
2897 {
2898         int r;
2899
2900         /* enable pcie gen2 link */
2901         if (!ASIC_IS_DCE5(rdev))
2902                 evergreen_pcie_gen2_enable(rdev);
2903
2904         if (ASIC_IS_DCE5(rdev)) {
2905                 if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
2906                         r = ni_init_microcode(rdev);
2907                         if (r) {
2908                                 DRM_ERROR("Failed to load firmware!\n");
2909                                 return r;
2910                         }
2911                 }
2912                 r = ni_mc_load_microcode(rdev);
2913                 if (r) {
2914                         DRM_ERROR("Failed to load MC firmware!\n");
2915                         return r;
2916                 }
2917         } else {
2918                 if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
2919                         r = r600_init_microcode(rdev);
2920                         if (r) {
2921                                 DRM_ERROR("Failed to load firmware!\n");
2922                                 return r;
2923                         }
2924                 }
2925         }
2926
2927         evergreen_mc_program(rdev);
2928         if (rdev->flags & RADEON_IS_AGP) {
2929                 evergreen_agp_enable(rdev);
2930         } else {
2931                 r = evergreen_pcie_gart_enable(rdev);
2932                 if (r)
2933                         return r;
2934         }
2935         evergreen_gpu_init(rdev);
2936
2937         r = evergreen_blit_init(rdev);
2938         if (r) {
2939                 evergreen_blit_fini(rdev);
2940                 rdev->asic->copy = NULL;
2941                 dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
2942         }
2943
2944         /* allocate wb buffer */
2945         r = radeon_wb_init(rdev);
2946         if (r)
2947                 return r;
2948
2949         /* Enable IRQ */
2950         r = r600_irq_init(rdev);
2951         if (r) {
2952                 DRM_ERROR("radeon: IH init failed (%d).\n", r);
2953                 radeon_irq_kms_fini(rdev);
2954                 return r;
2955         }
2956         evergreen_irq_set(rdev);
2957
2958         r = radeon_ring_init(rdev, rdev->cp.ring_size);
2959         if (r)
2960                 return r;
2961         r = evergreen_cp_load_microcode(rdev);
2962         if (r)
2963                 return r;
2964         r = evergreen_cp_resume(rdev);
2965         if (r)
2966                 return r;
2967
2968         return 0;
2969 }
2970
2971 int evergreen_resume(struct radeon_device *rdev)
2972 {
2973         int r;
2974
2975         /* reset the asic, the gfx blocks are often in a bad state
2976          * after the driver is unloaded or after a resume
2977          */
2978         if (radeon_asic_reset(rdev))
2979                 dev_warn(rdev->dev, "GPU reset failed !\n");
2980         /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
2981          * posting will perform necessary task to bring back GPU into good
2982          * shape.
2983          */
2984         /* post card */
2985         atom_asic_init(rdev->mode_info.atom_context);
2986
2987         r = evergreen_startup(rdev);
2988         if (r) {
2989                 DRM_ERROR("evergreen startup failed on resume\n");
2990                 return r;
2991         }
2992
2993         r = r600_ib_test(rdev);
2994         if (r) {
2995                 DRM_ERROR("radeon: failed testing IB (%d).\n", r);
2996                 return r;
2997         }
2998
2999         return r;
3000
3001 }
3002
3003 int evergreen_suspend(struct radeon_device *rdev)
3004 {
3005         int r;
3006
3007         /* FIXME: we should wait for ring to be empty */
3008         r700_cp_stop(rdev);
3009         rdev->cp.ready = false;
3010         evergreen_irq_suspend(rdev);
3011         radeon_wb_disable(rdev);
3012         evergreen_pcie_gart_disable(rdev);
3013
3014         /* unpin shaders bo */
3015         r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
3016         if (likely(r == 0)) {
3017                 radeon_bo_unpin(rdev->r600_blit.shader_obj);
3018                 radeon_bo_unreserve(rdev->r600_blit.shader_obj);
3019         }
3020
3021         return 0;
3022 }
3023
3024 int evergreen_copy_blit(struct radeon_device *rdev,
3025                         uint64_t src_offset, uint64_t dst_offset,
3026                         unsigned num_pages, struct radeon_fence *fence)
3027 {
3028         int r;
3029
3030         mutex_lock(&rdev->r600_blit.mutex);
3031         rdev->r600_blit.vb_ib = NULL;
3032         r = evergreen_blit_prepare_copy(rdev, num_pages * RADEON_GPU_PAGE_SIZE);
3033         if (r) {
3034                 if (rdev->r600_blit.vb_ib)
3035                         radeon_ib_free(rdev, &rdev->r600_blit.vb_ib);
3036                 mutex_unlock(&rdev->r600_blit.mutex);
3037                 return r;
3038         }
3039         evergreen_kms_blit_copy(rdev, src_offset, dst_offset, num_pages * RADEON_GPU_PAGE_SIZE);
3040         evergreen_blit_done_copy(rdev, fence);
3041         mutex_unlock(&rdev->r600_blit.mutex);
3042         return 0;
3043 }
3044
3045 /* Plan is to move initialization in that function and use
3046  * helper function so that radeon_device_init pretty much
3047  * do nothing more than calling asic specific function. This
3048  * should also allow to remove a bunch of callback function
3049  * like vram_info.
3050  */
3051 int evergreen_init(struct radeon_device *rdev)
3052 {
3053         int r;
3054
3055         /* This don't do much */
3056         r = radeon_gem_init(rdev);
3057         if (r)
3058                 return r;
3059         /* Read BIOS */
3060         if (!radeon_get_bios(rdev)) {
3061                 if (ASIC_IS_AVIVO(rdev))
3062                         return -EINVAL;
3063         }
3064         /* Must be an ATOMBIOS */
3065         if (!rdev->is_atom_bios) {
3066                 dev_err(rdev->dev, "Expecting atombios for evergreen GPU\n");
3067                 return -EINVAL;
3068         }
3069         r = radeon_atombios_init(rdev);
3070         if (r)
3071                 return r;
3072         /* reset the asic, the gfx blocks are often in a bad state
3073          * after the driver is unloaded or after a resume
3074          */
3075         if (radeon_asic_reset(rdev))
3076                 dev_warn(rdev->dev, "GPU reset failed !\n");
3077         /* Post card if necessary */
3078         if (!radeon_card_posted(rdev)) {
3079                 if (!rdev->bios) {
3080                         dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
3081                         return -EINVAL;
3082                 }
3083                 DRM_INFO("GPU not posted. posting now...\n");
3084                 atom_asic_init(rdev->mode_info.atom_context);
3085         }
3086         /* Initialize scratch registers */
3087         r600_scratch_init(rdev);
3088         /* Initialize surface registers */
3089         radeon_surface_init(rdev);
3090         /* Initialize clocks */
3091         radeon_get_clock_info(rdev->ddev);
3092         /* Fence driver */
3093         r = radeon_fence_driver_init(rdev);
3094         if (r)
3095                 return r;
3096         /* initialize AGP */
3097         if (rdev->flags & RADEON_IS_AGP) {
3098                 r = radeon_agp_init(rdev);
3099                 if (r)
3100                         radeon_agp_disable(rdev);
3101         }
3102         /* initialize memory controller */
3103         r = evergreen_mc_init(rdev);
3104         if (r)
3105                 return r;
3106         /* Memory manager */
3107         r = radeon_bo_init(rdev);
3108         if (r)
3109                 return r;
3110
3111         r = radeon_irq_kms_init(rdev);
3112         if (r)
3113                 return r;
3114
3115         rdev->cp.ring_obj = NULL;
3116         r600_ring_init(rdev, 1024 * 1024);
3117
3118         rdev->ih.ring_obj = NULL;
3119         r600_ih_ring_init(rdev, 64 * 1024);
3120
3121         r = r600_pcie_gart_init(rdev);
3122         if (r)
3123                 return r;
3124
3125         rdev->accel_working = true;
3126         r = evergreen_startup(rdev);
3127         if (r) {
3128                 dev_err(rdev->dev, "disabling GPU acceleration\n");
3129                 r700_cp_fini(rdev);
3130                 r600_irq_fini(rdev);
3131                 radeon_wb_fini(rdev);
3132                 radeon_irq_kms_fini(rdev);
3133                 evergreen_pcie_gart_fini(rdev);
3134                 rdev->accel_working = false;
3135         }
3136         if (rdev->accel_working) {
3137                 r = radeon_ib_pool_init(rdev);
3138                 if (r) {
3139                         DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
3140                         rdev->accel_working = false;
3141                 }
3142                 r = r600_ib_test(rdev);
3143                 if (r) {
3144                         DRM_ERROR("radeon: failed testing IB (%d).\n", r);
3145                         rdev->accel_working = false;
3146                 }
3147         }
3148         return 0;
3149 }
3150
3151 void evergreen_fini(struct radeon_device *rdev)
3152 {
3153         evergreen_blit_fini(rdev);
3154         r700_cp_fini(rdev);
3155         r600_irq_fini(rdev);
3156         radeon_wb_fini(rdev);
3157         radeon_irq_kms_fini(rdev);
3158         evergreen_pcie_gart_fini(rdev);
3159         radeon_gem_fini(rdev);
3160         radeon_fence_driver_fini(rdev);
3161         radeon_agp_fini(rdev);
3162         radeon_bo_fini(rdev);
3163         radeon_atombios_fini(rdev);
3164         kfree(rdev->bios);
3165         rdev->bios = NULL;
3166 }
3167
3168 static void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
3169 {
3170         u32 link_width_cntl, speed_cntl;
3171
3172         if (radeon_pcie_gen2 == 0)
3173                 return;
3174
3175         if (rdev->flags & RADEON_IS_IGP)
3176                 return;
3177
3178         if (!(rdev->flags & RADEON_IS_PCIE))
3179                 return;
3180
3181         /* x2 cards have a special sequence */
3182         if (ASIC_IS_X2(rdev))
3183                 return;
3184
3185         speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
3186         if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) ||
3187             (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
3188
3189                 link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
3190                 link_width_cntl &= ~LC_UPCONFIGURE_DIS;
3191                 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
3192
3193                 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
3194                 speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
3195                 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
3196
3197                 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
3198                 speed_cntl |= LC_CLR_FAILED_SPD_CHANGE_CNT;
3199                 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
3200
3201                 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
3202                 speed_cntl &= ~LC_CLR_FAILED_SPD_CHANGE_CNT;
3203                 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
3204
3205                 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
3206                 speed_cntl |= LC_GEN2_EN_STRAP;
3207                 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
3208
3209         } else {
3210                 link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
3211                 /* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
3212                 if (1)
3213                         link_width_cntl |= LC_UPCONFIGURE_DIS;
3214                 else
3215                         link_width_cntl &= ~LC_UPCONFIGURE_DIS;
3216                 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
3217         }
3218 }