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
  43 /* get temperature in millidegrees */
  44 u32 evergreen_get_temp(struct radeon_device *rdev)
  45 {
  46         u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
  47                 ASIC_T_SHIFT;
  48         u32 actual_temp = 0;
  49
  50         if ((temp >> 10) & 1)
  51                 actual_temp = 0;
  52         else if ((temp >> 9) & 1)
  53                 actual_temp = 255;
  54         else
  55                 actual_temp = (temp >> 1) & 0xff;
  56
  57         return actual_temp * 1000;
  58 }
  59
  60 void evergreen_pm_misc(struct radeon_device *rdev)
  61 {
  62         int req_ps_idx = rdev->pm.requested_power_state_index;
  63         int req_cm_idx = rdev->pm.requested_clock_mode_index;
  64         struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
  65         struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
  66
  67         if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
  68                 if (voltage->voltage != rdev->pm.current_vddc) {
  69                         radeon_atom_set_voltage(rdev, voltage->voltage);
  70                         rdev->pm.current_vddc = voltage->voltage;
  71                         DRM_DEBUG("Setting: v: %d\n", voltage->voltage);
  72                 }
  73         }
  74 }
  75
  76 void evergreen_pm_prepare(struct radeon_device *rdev)
  77 {
  78         struct drm_device *ddev = rdev->ddev;
  79         struct drm_crtc *crtc;
  80         struct radeon_crtc *radeon_crtc;
  81         u32 tmp;
  82
  83         /* disable any active CRTCs */
  84         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
  85                 radeon_crtc = to_radeon_crtc(crtc);
  86                 if (radeon_crtc->enabled) {
  87                         tmp = RREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset);
  88                         tmp |= EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
  89                         WREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
  90                 }
  91         }
  92 }
  93
  94 void evergreen_pm_finish(struct radeon_device *rdev)
  95 {
  96         struct drm_device *ddev = rdev->ddev;
  97         struct drm_crtc *crtc;
  98         struct radeon_crtc *radeon_crtc;
  99         u32 tmp;
 100
 101         /* enable any active CRTCs */
 102         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 103                 radeon_crtc = to_radeon_crtc(crtc);
 104                 if (radeon_crtc->enabled) {
 105                         tmp = RREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset);
 106                         tmp &= ~EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
 107                         WREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 108                 }
 109         }
 110 }
 111
 112 bool evergreen_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 113 {
 114         bool connected = false;
 115
 116         switch (hpd) {
 117         case RADEON_HPD_1:
 118                 if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
 119                         connected = true;
 120                 break;
 121         case RADEON_HPD_2:
 122                 if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
 123                         connected = true;
 124                 break;
 125         case RADEON_HPD_3:
 126                 if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
 127                         connected = true;
 128                 break;
 129         case RADEON_HPD_4:
 130                 if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
 131                         connected = true;
 132                 break;
 133         case RADEON_HPD_5:
 134                 if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
 135                         connected = true;
 136                 break;
 137         case RADEON_HPD_6:
 138                 if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
 139                         connected = true;
 140                         break;
 141         default:
 142                 break;
 143         }
 144
 145         return connected;
 146 }
 147
 148 void evergreen_hpd_set_polarity(struct radeon_device *rdev,
 149                                 enum radeon_hpd_id hpd)
 150 {
 151         u32 tmp;
 152         bool connected = evergreen_hpd_sense(rdev, hpd);
 153
 154         switch (hpd) {
 155         case RADEON_HPD_1:
 156                 tmp = RREG32(DC_HPD1_INT_CONTROL);
 157                 if (connected)
 158                         tmp &= ~DC_HPDx_INT_POLARITY;
 159                 else
 160                         tmp |= DC_HPDx_INT_POLARITY;
 161                 WREG32(DC_HPD1_INT_CONTROL, tmp);
 162                 break;
 163         case RADEON_HPD_2:
 164                 tmp = RREG32(DC_HPD2_INT_CONTROL);
 165                 if (connected)
 166                         tmp &= ~DC_HPDx_INT_POLARITY;
 167                 else
 168                         tmp |= DC_HPDx_INT_POLARITY;
 169                 WREG32(DC_HPD2_INT_CONTROL, tmp);
 170                 break;
 171         case RADEON_HPD_3:
 172                 tmp = RREG32(DC_HPD3_INT_CONTROL);
 173                 if (connected)
 174                         tmp &= ~DC_HPDx_INT_POLARITY;
 175                 else
 176                         tmp |= DC_HPDx_INT_POLARITY;
 177                 WREG32(DC_HPD3_INT_CONTROL, tmp);
 178                 break;
 179         case RADEON_HPD_4:
 180                 tmp = RREG32(DC_HPD4_INT_CONTROL);
 181                 if (connected)
 182                         tmp &= ~DC_HPDx_INT_POLARITY;
 183                 else
 184                         tmp |= DC_HPDx_INT_POLARITY;
 185                 WREG32(DC_HPD4_INT_CONTROL, tmp);
 186                 break;
 187         case RADEON_HPD_5:
 188                 tmp = RREG32(DC_HPD5_INT_CONTROL);
 189                 if (connected)
 190                         tmp &= ~DC_HPDx_INT_POLARITY;
 191                 else
 192                         tmp |= DC_HPDx_INT_POLARITY;
 193                 WREG32(DC_HPD5_INT_CONTROL, tmp);
 194                         break;
 195         case RADEON_HPD_6:
 196                 tmp = RREG32(DC_HPD6_INT_CONTROL);
 197                 if (connected)
 198                         tmp &= ~DC_HPDx_INT_POLARITY;
 199                 else
 200                         tmp |= DC_HPDx_INT_POLARITY;
 201                 WREG32(DC_HPD6_INT_CONTROL, tmp);
 202                 break;
 203         default:
 204                 break;
 205         }
 206 }
 207
 208 void evergreen_hpd_init(struct radeon_device *rdev)
 209 {
 210         struct drm_device *dev = rdev->ddev;
 211         struct drm_connector *connector;
 212         u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) |
 213                 DC_HPDx_RX_INT_TIMER(0xfa) | DC_HPDx_EN;
 214
 215         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 216                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 217                 switch (radeon_connector->hpd.hpd) {
 218                 case RADEON_HPD_1:
 219                         WREG32(DC_HPD1_CONTROL, tmp);
 220                         rdev->irq.hpd[0] = true;
 221                         break;
 222                 case RADEON_HPD_2:
 223                         WREG32(DC_HPD2_CONTROL, tmp);
 224                         rdev->irq.hpd[1] = true;
 225                         break;
 226                 case RADEON_HPD_3:
 227                         WREG32(DC_HPD3_CONTROL, tmp);
 228                         rdev->irq.hpd[2] = true;
 229                         break;
 230                 case RADEON_HPD_4:
 231                         WREG32(DC_HPD4_CONTROL, tmp);
 232                         rdev->irq.hpd[3] = true;
 233                         break;
 234                 case RADEON_HPD_5:
 235                         WREG32(DC_HPD5_CONTROL, tmp);
 236                         rdev->irq.hpd[4] = true;
 237                         break;
 238                 case RADEON_HPD_6:
 239                         WREG32(DC_HPD6_CONTROL, tmp);
 240                         rdev->irq.hpd[5] = true;
 241                         break;
 242                 default:
 243                         break;
 244                 }
 245         }
 246         if (rdev->irq.installed)
 247                 evergreen_irq_set(rdev);
 248 }
 249
 250 void evergreen_hpd_fini(struct radeon_device *rdev)
 251 {
 252         struct drm_device *dev = rdev->ddev;
 253         struct drm_connector *connector;
 254
 255         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 256                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 257                 switch (radeon_connector->hpd.hpd) {
 258                 case RADEON_HPD_1:
 259                         WREG32(DC_HPD1_CONTROL, 0);
 260                         rdev->irq.hpd[0] = false;
 261                         break;
 262                 case RADEON_HPD_2:
 263                         WREG32(DC_HPD2_CONTROL, 0);
 264                         rdev->irq.hpd[1] = false;
 265                         break;
 266                 case RADEON_HPD_3:
 267                         WREG32(DC_HPD3_CONTROL, 0);
 268                         rdev->irq.hpd[2] = false;
 269                         break;
 270                 case RADEON_HPD_4:
 271                         WREG32(DC_HPD4_CONTROL, 0);
 272                         rdev->irq.hpd[3] = false;
 273                         break;
 274                 case RADEON_HPD_5:
 275                         WREG32(DC_HPD5_CONTROL, 0);
 276                         rdev->irq.hpd[4] = false;
 277                         break;
 278                 case RADEON_HPD_6:
 279                         WREG32(DC_HPD6_CONTROL, 0);
 280                         rdev->irq.hpd[5] = false;
 281                         break;
 282                 default:
 283                         break;
 284                 }
 285         }
 286 }
 287
 288 /* watermark setup */
 289
 290 static u32 evergreen_line_buffer_adjust(struct radeon_device *rdev,
 291                                         struct radeon_crtc *radeon_crtc,
 292                                         struct drm_display_mode *mode,
 293                                         struct drm_display_mode *other_mode)
 294 {
 295         u32 tmp = 0;
 296         /*
 297          * Line Buffer Setup
 298          * There are 3 line buffers, each one shared by 2 display controllers.
 299          * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
 300          * the display controllers.  The paritioning is done via one of four
 301          * preset allocations specified in bits 2:0:
 302          * first display controller
 303          *  0 - first half of lb (3840 * 2)
 304          *  1 - first 3/4 of lb (5760 * 2)
 305          *  2 - whole lb (7680 * 2)
 306          *  3 - first 1/4 of lb (1920 * 2)
 307          * second display controller
 308          *  4 - second half of lb (3840 * 2)
 309          *  5 - second 3/4 of lb (5760 * 2)
 310          *  6 - whole lb (7680 * 2)
 311          *  7 - last 1/4 of lb (1920 * 2)
 312          */
 313         if (mode && other_mode) {
 314                 if (mode->hdisplay > other_mode->hdisplay) {
 315                         if (mode->hdisplay > 2560)
 316                                 tmp = 1; /* 3/4 */
 317                         else
 318                                 tmp = 0; /* 1/2 */
 319                 } else if (other_mode->hdisplay > mode->hdisplay) {
 320                         if (other_mode->hdisplay > 2560)
 321                                 tmp = 3; /* 1/4 */
 322                         else
 323                                 tmp = 0; /* 1/2 */
 324                 } else
 325                         tmp = 0; /* 1/2 */
 326         } else if (mode)
 327                 tmp = 2; /* whole */
 328         else if (other_mode)
 329                 tmp = 3; /* 1/4 */
 330
 331         /* second controller of the pair uses second half of the lb */
 332         if (radeon_crtc->crtc_id % 2)
 333                 tmp += 4;
 334         WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset, tmp);
 335
 336         switch (tmp) {
 337         case 0:
 338         case 4:
 339         default:
 340                 return 3840 * 2;
 341         case 1:
 342         case 5:
 343                 return 5760 * 2;
 344         case 2:
 345         case 6:
 346                 return 7680 * 2;
 347         case 3:
 348         case 7:
 349                 return 1920 * 2;
 350         }
 351 }
 352
 353 static u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev)
 354 {
 355         u32 tmp = RREG32(MC_SHARED_CHMAP);
 356
 357         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
 358         case 0:
 359         default:
 360                 return 1;
 361         case 1:
 362                 return 2;
 363         case 2:
 364                 return 4;
 365         case 3:
 366                 return 8;
 367         }
 368 }
 369
 370 struct evergreen_wm_params {
 371         u32 dram_channels; /* number of dram channels */
 372         u32 yclk;          /* bandwidth per dram data pin in kHz */
 373         u32 sclk;          /* engine clock in kHz */
 374         u32 disp_clk;      /* display clock in kHz */
 375         u32 src_width;     /* viewport width */
 376         u32 active_time;   /* active display time in ns */
 377         u32 blank_time;    /* blank time in ns */
 378         bool interlaced;    /* mode is interlaced */
 379         fixed20_12 vsc;    /* vertical scale ratio */
 380         u32 num_heads;     /* number of active crtcs */
 381         u32 bytes_per_pixel; /* bytes per pixel display + overlay */
 382         u32 lb_size;       /* line buffer allocated to pipe */
 383         u32 vtaps;         /* vertical scaler taps */
 384 };
 385
 386 static u32 evergreen_dram_bandwidth(struct evergreen_wm_params *wm)
 387 {
 388         /* Calculate DRAM Bandwidth and the part allocated to display. */
 389         fixed20_12 dram_efficiency; /* 0.7 */
 390         fixed20_12 yclk, dram_channels, bandwidth;
 391         fixed20_12 a;
 392
 393         a.full = dfixed_const(1000);
 394         yclk.full = dfixed_const(wm->yclk);
 395         yclk.full = dfixed_div(yclk, a);
 396         dram_channels.full = dfixed_const(wm->dram_channels * 4);
 397         a.full = dfixed_const(10);
 398         dram_efficiency.full = dfixed_const(7);
 399         dram_efficiency.full = dfixed_div(dram_efficiency, a);
 400         bandwidth.full = dfixed_mul(dram_channels, yclk);
 401         bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);
 402
 403         return dfixed_trunc(bandwidth);
 404 }
 405
 406 static u32 evergreen_dram_bandwidth_for_display(struct evergreen_wm_params *wm)
 407 {
 408         /* Calculate DRAM Bandwidth and the part allocated to display. */
 409         fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */
 410         fixed20_12 yclk, dram_channels, bandwidth;
 411         fixed20_12 a;
 412
 413         a.full = dfixed_const(1000);
 414         yclk.full = dfixed_const(wm->yclk);
 415         yclk.full = dfixed_div(yclk, a);
 416         dram_channels.full = dfixed_const(wm->dram_channels * 4);
 417         a.full = dfixed_const(10);
 418         disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */
 419         disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a);
 420         bandwidth.full = dfixed_mul(dram_channels, yclk);
 421         bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);
 422
 423         return dfixed_trunc(bandwidth);
 424 }
 425
 426 static u32 evergreen_data_return_bandwidth(struct evergreen_wm_params *wm)
 427 {
 428         /* Calculate the display Data return Bandwidth */
 429         fixed20_12 return_efficiency; /* 0.8 */
 430         fixed20_12 sclk, bandwidth;
 431         fixed20_12 a;
 432
 433         a.full = dfixed_const(1000);
 434         sclk.full = dfixed_const(wm->sclk);
 435         sclk.full = dfixed_div(sclk, a);
 436         a.full = dfixed_const(10);
 437         return_efficiency.full = dfixed_const(8);
 438         return_efficiency.full = dfixed_div(return_efficiency, a);
 439         a.full = dfixed_const(32);
 440         bandwidth.full = dfixed_mul(a, sclk);
 441         bandwidth.full = dfixed_mul(bandwidth, return_efficiency);
 442
 443         return dfixed_trunc(bandwidth);
 444 }
 445
 446 static u32 evergreen_dmif_request_bandwidth(struct evergreen_wm_params *wm)
 447 {
 448         /* Calculate the DMIF Request Bandwidth */
 449         fixed20_12 disp_clk_request_efficiency; /* 0.8 */
 450         fixed20_12 disp_clk, bandwidth;
 451         fixed20_12 a;
 452
 453         a.full = dfixed_const(1000);
 454         disp_clk.full = dfixed_const(wm->disp_clk);
 455         disp_clk.full = dfixed_div(disp_clk, a);
 456         a.full = dfixed_const(10);
 457         disp_clk_request_efficiency.full = dfixed_const(8);
 458         disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a);
 459         a.full = dfixed_const(32);
 460         bandwidth.full = dfixed_mul(a, disp_clk);
 461         bandwidth.full = dfixed_mul(bandwidth, disp_clk_request_efficiency);
 462
 463         return dfixed_trunc(bandwidth);
 464 }
 465
 466 static u32 evergreen_available_bandwidth(struct evergreen_wm_params *wm)
 467 {
 468         /* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
 469         u32 dram_bandwidth = evergreen_dram_bandwidth(wm);
 470         u32 data_return_bandwidth = evergreen_data_return_bandwidth(wm);
 471         u32 dmif_req_bandwidth = evergreen_dmif_request_bandwidth(wm);
 472
 473         return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
 474 }
 475
 476 static u32 evergreen_average_bandwidth(struct evergreen_wm_params *wm)
 477 {
 478         /* Calculate the display mode Average Bandwidth
 479          * DisplayMode should contain the source and destination dimensions,
 480          * timing, etc.
 481          */
 482         fixed20_12 bpp;
 483         fixed20_12 line_time;
 484         fixed20_12 src_width;
 485         fixed20_12 bandwidth;
 486         fixed20_12 a;
 487
 488         a.full = dfixed_const(1000);
 489         line_time.full = dfixed_const(wm->active_time + wm->blank_time);
 490         line_time.full = dfixed_div(line_time, a);
 491         bpp.full = dfixed_const(wm->bytes_per_pixel);
 492         src_width.full = dfixed_const(wm->src_width);
 493         bandwidth.full = dfixed_mul(src_width, bpp);
 494         bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
 495         bandwidth.full = dfixed_div(bandwidth, line_time);
 496
 497         return dfixed_trunc(bandwidth);
 498 }
 499
 500 static u32 evergreen_latency_watermark(struct evergreen_wm_params *wm)
 501 {
 502         /* First calcualte the latency in ns */
 503         u32 mc_latency = 2000; /* 2000 ns. */
 504         u32 available_bandwidth = evergreen_available_bandwidth(wm);
 505         u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth;
 506         u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth;
 507         u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */
 508         u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) +
 509                 (wm->num_heads * cursor_line_pair_return_time);
 510         u32 latency = mc_latency + other_heads_data_return_time + dc_latency;
 511         u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time;
 512         fixed20_12 a, b, c;
 513
 514         if (wm->num_heads == 0)
 515                 return 0;
 516
 517         a.full = dfixed_const(2);
 518         b.full = dfixed_const(1);
 519         if ((wm->vsc.full > a.full) ||
 520             ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) ||
 521             (wm->vtaps >= 5) ||
 522             ((wm->vsc.full >= a.full) && wm->interlaced))
 523                 max_src_lines_per_dst_line = 4;
 524         else
 525                 max_src_lines_per_dst_line = 2;
 526
 527         a.full = dfixed_const(available_bandwidth);
 528         b.full = dfixed_const(wm->num_heads);
 529         a.full = dfixed_div(a, b);
 530
 531         b.full = dfixed_const(1000);
 532         c.full = dfixed_const(wm->disp_clk);
 533         b.full = dfixed_div(c, b);
 534         c.full = dfixed_const(wm->bytes_per_pixel);
 535         b.full = dfixed_mul(b, c);
 536
 537         lb_fill_bw = min(dfixed_trunc(a), dfixed_trunc(b));
 538
 539         a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
 540         b.full = dfixed_const(1000);
 541         c.full = dfixed_const(lb_fill_bw);
 542         b.full = dfixed_div(c, b);
 543         a.full = dfixed_div(a, b);
 544         line_fill_time = dfixed_trunc(a);
 545
 546         if (line_fill_time < wm->active_time)
 547                 return latency;
 548         else
 549                 return latency + (line_fill_time - wm->active_time);
 550
 551 }
 552
 553 static bool evergreen_average_bandwidth_vs_dram_bandwidth_for_display(struct evergreen_wm_params *wm)
 554 {
 555         if (evergreen_average_bandwidth(wm) <=
 556             (evergreen_dram_bandwidth_for_display(wm) / wm->num_heads))
 557                 return true;
 558         else
 559                 return false;
 560 };
 561
 562 static bool evergreen_average_bandwidth_vs_available_bandwidth(struct evergreen_wm_params *wm)
 563 {
 564         if (evergreen_average_bandwidth(wm) <=
 565             (evergreen_available_bandwidth(wm) / wm->num_heads))
 566                 return true;
 567         else
 568                 return false;
 569 };
 570
 571 static bool evergreen_check_latency_hiding(struct evergreen_wm_params *wm)
 572 {
 573         u32 lb_partitions = wm->lb_size / wm->src_width;
 574         u32 line_time = wm->active_time + wm->blank_time;
 575         u32 latency_tolerant_lines;
 576         u32 latency_hiding;
 577         fixed20_12 a;
 578
 579         a.full = dfixed_const(1);
 580         if (wm->vsc.full > a.full)
 581                 latency_tolerant_lines = 1;
 582         else {
 583                 if (lb_partitions <= (wm->vtaps + 1))
 584                         latency_tolerant_lines = 1;
 585                 else
 586                         latency_tolerant_lines = 2;
 587         }
 588
 589         latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time);
 590
 591         if (evergreen_latency_watermark(wm) <= latency_hiding)
 592                 return true;
 593         else
 594                 return false;
 595 }
 596
 597 static void evergreen_program_watermarks(struct radeon_device *rdev,
 598                                          struct radeon_crtc *radeon_crtc,
 599                                          u32 lb_size, u32 num_heads)
 600 {
 601         struct drm_display_mode *mode = &radeon_crtc->base.mode;
 602         struct evergreen_wm_params wm;
 603         u32 pixel_period;
 604         u32 line_time = 0;
 605         u32 latency_watermark_a = 0, latency_watermark_b = 0;
 606         u32 priority_a_mark = 0, priority_b_mark = 0;
 607         u32 priority_a_cnt = PRIORITY_OFF;
 608         u32 priority_b_cnt = PRIORITY_OFF;
 609         u32 pipe_offset = radeon_crtc->crtc_id * 16;
 610         u32 tmp, arb_control3;
 611         fixed20_12 a, b, c;
 612
 613         if (radeon_crtc->base.enabled && num_heads && mode) {
 614                 pixel_period = 1000000 / (u32)mode->clock;
 615                 line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
 616                 priority_a_cnt = 0;
 617                 priority_b_cnt = 0;
 618
 619                 wm.yclk = rdev->pm.current_mclk * 10;
 620                 wm.sclk = rdev->pm.current_sclk * 10;
 621                 wm.disp_clk = mode->clock;
 622                 wm.src_width = mode->crtc_hdisplay;
 623                 wm.active_time = mode->crtc_hdisplay * pixel_period;
 624                 wm.blank_time = line_time - wm.active_time;
 625                 wm.interlaced = false;
 626                 if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 627                         wm.interlaced = true;
 628                 wm.vsc = radeon_crtc->vsc;
 629                 wm.vtaps = 1;
 630                 if (radeon_crtc->rmx_type != RMX_OFF)
 631                         wm.vtaps = 2;
 632                 wm.bytes_per_pixel = 4; /* XXX: get this from fb config */
 633                 wm.lb_size = lb_size;
 634                 wm.dram_channels = evergreen_get_number_of_dram_channels(rdev);
 635                 wm.num_heads = num_heads;
 636
 637                 /* set for high clocks */
 638                 latency_watermark_a = min(evergreen_latency_watermark(&wm), (u32)65535);
 639                 /* set for low clocks */
 640                 /* wm.yclk = low clk; wm.sclk = low clk */
 641                 latency_watermark_b = min(evergreen_latency_watermark(&wm), (u32)65535);
 642
 643                 /* possibly force display priority to high */
 644                 /* should really do this at mode validation time... */
 645                 if (!evergreen_average_bandwidth_vs_dram_bandwidth_for_display(&wm) ||
 646                     !evergreen_average_bandwidth_vs_available_bandwidth(&wm) ||
 647                     !evergreen_check_latency_hiding(&wm) ||
 648                     (rdev->disp_priority == 2)) {
 649                         DRM_INFO("force priority to high\n");
 650                         priority_a_cnt |= PRIORITY_ALWAYS_ON;
 651                         priority_b_cnt |= PRIORITY_ALWAYS_ON;
 652                 }
 653
 654                 a.full = dfixed_const(1000);
 655                 b.full = dfixed_const(mode->clock);
 656                 b.full = dfixed_div(b, a);
 657                 c.full = dfixed_const(latency_watermark_a);
 658                 c.full = dfixed_mul(c, b);
 659                 c.full = dfixed_mul(c, radeon_crtc->hsc);
 660                 c.full = dfixed_div(c, a);
 661                 a.full = dfixed_const(16);
 662                 c.full = dfixed_div(c, a);
 663                 priority_a_mark = dfixed_trunc(c);
 664                 priority_a_cnt |= priority_a_mark & PRIORITY_MARK_MASK;
 665
 666                 a.full = dfixed_const(1000);
 667                 b.full = dfixed_const(mode->clock);
 668                 b.full = dfixed_div(b, a);
 669                 c.full = dfixed_const(latency_watermark_b);
 670                 c.full = dfixed_mul(c, b);
 671                 c.full = dfixed_mul(c, radeon_crtc->hsc);
 672                 c.full = dfixed_div(c, a);
 673                 a.full = dfixed_const(16);
 674                 c.full = dfixed_div(c, a);
 675                 priority_b_mark = dfixed_trunc(c);
 676                 priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;
 677         }
 678
 679         /* select wm A */
 680         arb_control3 = RREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset);
 681         tmp = arb_control3;
 682         tmp &= ~LATENCY_WATERMARK_MASK(3);
 683         tmp |= LATENCY_WATERMARK_MASK(1);
 684         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, tmp);
 685         WREG32(PIPE0_LATENCY_CONTROL + pipe_offset,
 686                (LATENCY_LOW_WATERMARK(latency_watermark_a) |
 687                 LATENCY_HIGH_WATERMARK(line_time)));
 688         /* select wm B */
 689         tmp = RREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset);
 690         tmp &= ~LATENCY_WATERMARK_MASK(3);
 691         tmp |= LATENCY_WATERMARK_MASK(2);
 692         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, tmp);
 693         WREG32(PIPE0_LATENCY_CONTROL + pipe_offset,
 694                (LATENCY_LOW_WATERMARK(latency_watermark_b) |
 695                 LATENCY_HIGH_WATERMARK(line_time)));
 696         /* restore original selection */
 697         WREG32(PIPE0_ARBITRATION_CONTROL3 + pipe_offset, arb_control3);
 698
 699         /* write the priority marks */
 700         WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
 701         WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);
 702
 703 }
 704
 705 void evergreen_bandwidth_update(struct radeon_device *rdev)
 706 {
 707         struct drm_display_mode *mode0 = NULL;
 708         struct drm_display_mode *mode1 = NULL;
 709         u32 num_heads = 0, lb_size;
 710         int i;
 711
 712         radeon_update_display_priority(rdev);
 713
 714         for (i = 0; i < rdev->num_crtc; i++) {
 715                 if (rdev->mode_info.crtcs[i]->base.enabled)
 716                         num_heads++;
 717         }
 718         for (i = 0; i < rdev->num_crtc; i += 2) {
 719                 mode0 = &rdev->mode_info.crtcs[i]->base.mode;
 720                 mode1 = &rdev->mode_info.crtcs[i+1]->base.mode;
 721                 lb_size = evergreen_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i], mode0, mode1);
 722                 evergreen_program_watermarks(rdev, rdev->mode_info.crtcs[i], lb_size, num_heads);
 723                 lb_size = evergreen_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i+1], mode1, mode0);
 724                 evergreen_program_watermarks(rdev, rdev->mode_info.crtcs[i+1], lb_size, num_heads);
 725         }
 726 }
 727
 728 static int evergreen_mc_wait_for_idle(struct radeon_device *rdev)
 729 {
 730         unsigned i;
 731         u32 tmp;
 732
 733         for (i = 0; i < rdev->usec_timeout; i++) {
 734                 /* read MC_STATUS */
 735                 tmp = RREG32(SRBM_STATUS) & 0x1F00;
 736                 if (!tmp)
 737                         return 0;
 738                 udelay(1);
 739         }
 740         return -1;
 741 }
 742
 743 /*
 744  * GART
 745  */
 746 void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev)
 747 {
 748         unsigned i;
 749         u32 tmp;
 750
 751         WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
 752         for (i = 0; i < rdev->usec_timeout; i++) {
 753                 /* read MC_STATUS */
 754                 tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
 755                 tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
 756                 if (tmp == 2) {
 757                         printk(KERN_WARNING "[drm] r600 flush TLB failed\n");
 758                         return;
 759                 }
 760                 if (tmp) {
 761                         return;
 762                 }
 763                 udelay(1);
 764         }
 765 }
 766
 767 int evergreen_pcie_gart_enable(struct radeon_device *rdev)
 768 {
 769         u32 tmp;
 770         int r;
 771
 772         if (rdev->gart.table.vram.robj == NULL) {
 773                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 774                 return -EINVAL;
 775         }
 776         r = radeon_gart_table_vram_pin(rdev);
 777         if (r)
 778                 return r;
 779         radeon_gart_restore(rdev);
 780         /* Setup L2 cache */
 781         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 782                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 783                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 784         WREG32(VM_L2_CNTL2, 0);
 785         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 786         /* Setup TLB control */
 787         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 788                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 789                 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
 790                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 791         WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 792         WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 793         WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 794         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 795         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 796         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 797         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 798         WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
 799         WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
 800         WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
 801         WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 802                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 803         WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 804                         (u32)(rdev->dummy_page.addr >> 12));
 805         WREG32(VM_CONTEXT1_CNTL, 0);
 806
 807         evergreen_pcie_gart_tlb_flush(rdev);
 808         rdev->gart.ready = true;
 809         return 0;
 810 }
 811
 812 void evergreen_pcie_gart_disable(struct radeon_device *rdev)
 813 {
 814         u32 tmp;
 815         int r;
 816
 817         /* Disable all tables */
 818         WREG32(VM_CONTEXT0_CNTL, 0);
 819         WREG32(VM_CONTEXT1_CNTL, 0);
 820
 821         /* Setup L2 cache */
 822         WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
 823                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 824         WREG32(VM_L2_CNTL2, 0);
 825         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 826         /* Setup TLB control */
 827         tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 828         WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 829         WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 830         WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 831         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 832         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 833         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 834         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 835         if (rdev->gart.table.vram.robj) {
 836                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 837                 if (likely(r == 0)) {
 838                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 839                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 840                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 841                 }
 842         }
 843 }
 844
 845 void evergreen_pcie_gart_fini(struct radeon_device *rdev)
 846 {
 847         evergreen_pcie_gart_disable(rdev);
 848         radeon_gart_table_vram_free(rdev);
 849         radeon_gart_fini(rdev);
 850 }
 851
 852
 853 void evergreen_agp_enable(struct radeon_device *rdev)
 854 {
 855         u32 tmp;
 856
 857         /* Setup L2 cache */
 858         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 859                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 860                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 861         WREG32(VM_L2_CNTL2, 0);
 862         WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
 863         /* Setup TLB control */
 864         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 865                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 866                 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
 867                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
 868         WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 869         WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 870         WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
 871         WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 872         WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
 873         WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
 874         WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
 875         WREG32(VM_CONTEXT0_CNTL, 0);
 876         WREG32(VM_CONTEXT1_CNTL, 0);
 877 }
 878
 879 static void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 880 {
 881         save->vga_control[0] = RREG32(D1VGA_CONTROL);
 882         save->vga_control[1] = RREG32(D2VGA_CONTROL);
 883         save->vga_control[2] = RREG32(EVERGREEN_D3VGA_CONTROL);
 884         save->vga_control[3] = RREG32(EVERGREEN_D4VGA_CONTROL);
 885         save->vga_control[4] = RREG32(EVERGREEN_D5VGA_CONTROL);
 886         save->vga_control[5] = RREG32(EVERGREEN_D6VGA_CONTROL);
 887         save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
 888         save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
 889         save->crtc_control[0] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
 890         save->crtc_control[1] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
 891         save->crtc_control[2] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
 892         save->crtc_control[3] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
 893         save->crtc_control[4] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
 894         save->crtc_control[5] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
 895
 896         /* Stop all video */
 897         WREG32(VGA_RENDER_CONTROL, 0);
 898         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
 899         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
 900         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
 901         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
 902         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
 903         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
 904         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 905         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
 906         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
 907         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
 908         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
 909         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
 910         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 911         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
 912         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
 913         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
 914         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
 915         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
 916
 917         WREG32(D1VGA_CONTROL, 0);
 918         WREG32(D2VGA_CONTROL, 0);
 919         WREG32(EVERGREEN_D3VGA_CONTROL, 0);
 920         WREG32(EVERGREEN_D4VGA_CONTROL, 0);
 921         WREG32(EVERGREEN_D5VGA_CONTROL, 0);
 922         WREG32(EVERGREEN_D6VGA_CONTROL, 0);
 923 }
 924
 925 static void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
 926 {
 927         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
 928                upper_32_bits(rdev->mc.vram_start));
 929         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
 930                upper_32_bits(rdev->mc.vram_start));
 931         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
 932                (u32)rdev->mc.vram_start);
 933         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
 934                (u32)rdev->mc.vram_start);
 935
 936         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
 937                upper_32_bits(rdev->mc.vram_start));
 938         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
 939                upper_32_bits(rdev->mc.vram_start));
 940         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
 941                (u32)rdev->mc.vram_start);
 942         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
 943                (u32)rdev->mc.vram_start);
 944
 945         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
 946                upper_32_bits(rdev->mc.vram_start));
 947         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
 948                upper_32_bits(rdev->mc.vram_start));
 949         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
 950                (u32)rdev->mc.vram_start);
 951         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
 952                (u32)rdev->mc.vram_start);
 953
 954         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
 955                upper_32_bits(rdev->mc.vram_start));
 956         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
 957                upper_32_bits(rdev->mc.vram_start));
 958         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
 959                (u32)rdev->mc.vram_start);
 960         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
 961                (u32)rdev->mc.vram_start);
 962
 963         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
 964                upper_32_bits(rdev->mc.vram_start));
 965         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
 966                upper_32_bits(rdev->mc.vram_start));
 967         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
 968                (u32)rdev->mc.vram_start);
 969         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
 970                (u32)rdev->mc.vram_start);
 971
 972         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
 973                upper_32_bits(rdev->mc.vram_start));
 974         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
 975                upper_32_bits(rdev->mc.vram_start));
 976         WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
 977                (u32)rdev->mc.vram_start);
 978         WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
 979                (u32)rdev->mc.vram_start);
 980
 981         WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
 982         WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
 983         /* Unlock host access */
 984         WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
 985         mdelay(1);
 986         /* Restore video state */
 987         WREG32(D1VGA_CONTROL, save->vga_control[0]);
 988         WREG32(D2VGA_CONTROL, save->vga_control[1]);
 989         WREG32(EVERGREEN_D3VGA_CONTROL, save->vga_control[2]);
 990         WREG32(EVERGREEN_D4VGA_CONTROL, save->vga_control[3]);
 991         WREG32(EVERGREEN_D5VGA_CONTROL, save->vga_control[4]);
 992         WREG32(EVERGREEN_D6VGA_CONTROL, save->vga_control[5]);
 993         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
 994         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
 995         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
 996         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
 997         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
 998         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
 999         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, save->crtc_control[0]);
1000         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, save->crtc_control[1]);
1001         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, save->crtc_control[2]);
1002         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, save->crtc_control[3]);
1003         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, save->crtc_control[4]);
1004         WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, save->crtc_control[5]);
1005         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
1006         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
1007         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
1008         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
1009         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
1010         WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
1011         WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
1012 }
1013
1014 static void evergreen_mc_program(struct radeon_device *rdev)
1015 {
1016         struct evergreen_mc_save save;
1017         u32 tmp;
1018         int i, j;
1019
1020         /* Initialize HDP */
1021         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1022                 WREG32((0x2c14 + j), 0x00000000);
1023                 WREG32((0x2c18 + j), 0x00000000);
1024                 WREG32((0x2c1c + j), 0x00000000);
1025                 WREG32((0x2c20 + j), 0x00000000);
1026                 WREG32((0x2c24 + j), 0x00000000);
1027         }
1028         WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
1029
1030         evergreen_mc_stop(rdev, &save);
1031         if (evergreen_mc_wait_for_idle(rdev)) {
1032                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1033         }
1034         /* Lockout access through VGA aperture*/
1035         WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
1036         /* Update configuration */
1037         if (rdev->flags & RADEON_IS_AGP) {
1038                 if (rdev->mc.vram_start < rdev->mc.gtt_start) {
1039                         /* VRAM before AGP */
1040                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1041                                 rdev->mc.vram_start >> 12);
1042                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1043                                 rdev->mc.gtt_end >> 12);
1044                 } else {
1045                         /* VRAM after AGP */
1046                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1047                                 rdev->mc.gtt_start >> 12);
1048                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1049                                 rdev->mc.vram_end >> 12);
1050                 }
1051         } else {
1052                 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1053                         rdev->mc.vram_start >> 12);
1054                 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1055                         rdev->mc.vram_end >> 12);
1056         }
1057         WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0);
1058         tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
1059         tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
1060         WREG32(MC_VM_FB_LOCATION, tmp);
1061         WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
1062         WREG32(HDP_NONSURFACE_INFO, (2 << 7));
1063         WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
1064         if (rdev->flags & RADEON_IS_AGP) {
1065                 WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
1066                 WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
1067                 WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
1068         } else {
1069                 WREG32(MC_VM_AGP_BASE, 0);
1070                 WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
1071                 WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
1072         }
1073         if (evergreen_mc_wait_for_idle(rdev)) {
1074                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1075         }
1076         evergreen_mc_resume(rdev, &save);
1077         /* we need to own VRAM, so turn off the VGA renderer here
1078          * to stop it overwriting our objects */
1079         rv515_vga_render_disable(rdev);
1080 }
1081
1082 /*
1083  * CP.
1084  */
1085
1086 static int evergreen_cp_load_microcode(struct radeon_device *rdev)
1087 {
1088         const __be32 *fw_data;
1089         int i;
1090
1091         if (!rdev->me_fw || !rdev->pfp_fw)
1092                 return -EINVAL;
1093
1094         r700_cp_stop(rdev);
1095         WREG32(CP_RB_CNTL, RB_NO_UPDATE | (15 << 8) | (3 << 0));
1096
1097         fw_data = (const __be32 *)rdev->pfp_fw->data;
1098         WREG32(CP_PFP_UCODE_ADDR, 0);
1099         for (i = 0; i < EVERGREEN_PFP_UCODE_SIZE; i++)
1100                 WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
1101         WREG32(CP_PFP_UCODE_ADDR, 0);
1102
1103         fw_data = (const __be32 *)rdev->me_fw->data;
1104         WREG32(CP_ME_RAM_WADDR, 0);
1105         for (i = 0; i < EVERGREEN_PM4_UCODE_SIZE; i++)
1106                 WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
1107
1108         WREG32(CP_PFP_UCODE_ADDR, 0);
1109         WREG32(CP_ME_RAM_WADDR, 0);
1110         WREG32(CP_ME_RAM_RADDR, 0);
1111         return 0;
1112 }
1113
1114 static int evergreen_cp_start(struct radeon_device *rdev)
1115 {
1116         int r, i;
1117         uint32_t cp_me;
1118
1119         r = radeon_ring_lock(rdev, 7);
1120         if (r) {
1121                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1122                 return r;
1123         }
1124         radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
1125         radeon_ring_write(rdev, 0x1);
1126         radeon_ring_write(rdev, 0x0);
1127         radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
1128         radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1129         radeon_ring_write(rdev, 0);
1130         radeon_ring_write(rdev, 0);
1131         radeon_ring_unlock_commit(rdev);
1132
1133         cp_me = 0xff;
1134         WREG32(CP_ME_CNTL, cp_me);
1135
1136         r = radeon_ring_lock(rdev, evergreen_default_size + 15);
1137         if (r) {
1138                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1139                 return r;
1140         }
1141
1142         /* setup clear context state */
1143         radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1144         radeon_ring_write(rdev, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
1145
1146         for (i = 0; i < evergreen_default_size; i++)
1147                 radeon_ring_write(rdev, evergreen_default_state[i]);
1148
1149         radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1150         radeon_ring_write(rdev, PACKET3_PREAMBLE_END_CLEAR_STATE);
1151
1152         /* set clear context state */
1153         radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
1154         radeon_ring_write(rdev, 0);
1155
1156         /* SQ_VTX_BASE_VTX_LOC */
1157         radeon_ring_write(rdev, 0xc0026f00);
1158         radeon_ring_write(rdev, 0x00000000);
1159         radeon_ring_write(rdev, 0x00000000);
1160         radeon_ring_write(rdev, 0x00000000);
1161
1162         /* Clear consts */
1163         radeon_ring_write(rdev, 0xc0036f00);
1164         radeon_ring_write(rdev, 0x00000bc4);
1165         radeon_ring_write(rdev, 0xffffffff);
1166         radeon_ring_write(rdev, 0xffffffff);
1167         radeon_ring_write(rdev, 0xffffffff);
1168
1169         radeon_ring_unlock_commit(rdev);
1170
1171         return 0;
1172 }
1173
1174 int evergreen_cp_resume(struct radeon_device *rdev)
1175 {
1176         u32 tmp;
1177         u32 rb_bufsz;
1178         int r;
1179
1180         /* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1181         WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1182                                  SOFT_RESET_PA |
1183                                  SOFT_RESET_SH |
1184                                  SOFT_RESET_VGT |
1185                                  SOFT_RESET_SX));
1186         RREG32(GRBM_SOFT_RESET);
1187         mdelay(15);
1188         WREG32(GRBM_SOFT_RESET, 0);
1189         RREG32(GRBM_SOFT_RESET);
1190
1191         /* Set ring buffer size */
1192         rb_bufsz = drm_order(rdev->cp.ring_size / 8);
1193         tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1194 #ifdef __BIG_ENDIAN
1195         tmp |= BUF_SWAP_32BIT;
1196 #endif
1197         WREG32(CP_RB_CNTL, tmp);
1198         WREG32(CP_SEM_WAIT_TIMER, 0x4);
1199
1200         /* Set the write pointer delay */
1201         WREG32(CP_RB_WPTR_DELAY, 0);
1202
1203         /* Initialize the ring buffer's read and write pointers */
1204         WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
1205         WREG32(CP_RB_RPTR_WR, 0);
1206         WREG32(CP_RB_WPTR, 0);
1207
1208         /* set the wb address wether it's enabled or not */
1209         WREG32(CP_RB_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
1210         WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
1211         WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1212
1213         if (rdev->wb.enabled)
1214                 WREG32(SCRATCH_UMSK, 0xff);
1215         else {
1216                 tmp |= RB_NO_UPDATE;
1217                 WREG32(SCRATCH_UMSK, 0);
1218         }
1219
1220         mdelay(1);
1221         WREG32(CP_RB_CNTL, tmp);
1222
1223         WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
1224         WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
1225
1226         rdev->cp.rptr = RREG32(CP_RB_RPTR);
1227         rdev->cp.wptr = RREG32(CP_RB_WPTR);
1228
1229         evergreen_cp_start(rdev);
1230         rdev->cp.ready = true;
1231         r = radeon_ring_test(rdev);
1232         if (r) {
1233                 rdev->cp.ready = false;
1234                 return r;
1235         }
1236         return 0;
1237 }
1238
1239 /*
1240  * Core functions
1241  */
1242 static u32 evergreen_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
1243                                                   u32 num_tile_pipes,
1244                                                   u32 num_backends,
1245                                                   u32 backend_disable_mask)
1246 {
1247         u32 backend_map = 0;
1248         u32 enabled_backends_mask = 0;
1249         u32 enabled_backends_count = 0;
1250         u32 cur_pipe;
1251         u32 swizzle_pipe[EVERGREEN_MAX_PIPES];
1252         u32 cur_backend = 0;
1253         u32 i;
1254         bool force_no_swizzle;
1255
1256         if (num_tile_pipes > EVERGREEN_MAX_PIPES)
1257                 num_tile_pipes = EVERGREEN_MAX_PIPES;
1258         if (num_tile_pipes < 1)
1259                 num_tile_pipes = 1;
1260         if (num_backends > EVERGREEN_MAX_BACKENDS)
1261                 num_backends = EVERGREEN_MAX_BACKENDS;
1262         if (num_backends < 1)
1263                 num_backends = 1;
1264
1265         for (i = 0; i < EVERGREEN_MAX_BACKENDS; ++i) {
1266                 if (((backend_disable_mask >> i) & 1) == 0) {
1267                         enabled_backends_mask |= (1 << i);
1268                         ++enabled_backends_count;
1269                 }
1270                 if (enabled_backends_count == num_backends)
1271                         break;
1272         }
1273
1274         if (enabled_backends_count == 0) {
1275                 enabled_backends_mask = 1;
1276                 enabled_backends_count = 1;
1277         }
1278
1279         if (enabled_backends_count != num_backends)
1280                 num_backends = enabled_backends_count;
1281
1282         memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * EVERGREEN_MAX_PIPES);
1283         switch (rdev->family) {
1284         case CHIP_CEDAR:
1285         case CHIP_REDWOOD:
1286                 force_no_swizzle = false;
1287                 break;
1288         case CHIP_CYPRESS:
1289         case CHIP_HEMLOCK:
1290         case CHIP_JUNIPER:
1291         default:
1292                 force_no_swizzle = true;
1293                 break;
1294         }
1295         if (force_no_swizzle) {
1296                 bool last_backend_enabled = false;
1297
1298                 force_no_swizzle = false;
1299                 for (i = 0; i < EVERGREEN_MAX_BACKENDS; ++i) {
1300                         if (((enabled_backends_mask >> i) & 1) == 1) {
1301                                 if (last_backend_enabled)
1302                                         force_no_swizzle = true;
1303                                 last_backend_enabled = true;
1304                         } else
1305                                 last_backend_enabled = false;
1306                 }
1307         }
1308
1309         switch (num_tile_pipes) {
1310         case 1:
1311         case 3:
1312         case 5:
1313         case 7:
1314                 DRM_ERROR("odd number of pipes!\n");
1315                 break;
1316         case 2:
1317                 swizzle_pipe[0] = 0;
1318                 swizzle_pipe[1] = 1;
1319                 break;
1320         case 4:
1321                 if (force_no_swizzle) {
1322                         swizzle_pipe[0] = 0;
1323                         swizzle_pipe[1] = 1;
1324                         swizzle_pipe[2] = 2;
1325                         swizzle_pipe[3] = 3;
1326                 } else {
1327                         swizzle_pipe[0] = 0;
1328                         swizzle_pipe[1] = 2;
1329                         swizzle_pipe[2] = 1;
1330                         swizzle_pipe[3] = 3;
1331                 }
1332                 break;
1333         case 6:
1334                 if (force_no_swizzle) {
1335                         swizzle_pipe[0] = 0;
1336                         swizzle_pipe[1] = 1;
1337                         swizzle_pipe[2] = 2;
1338                         swizzle_pipe[3] = 3;
1339                         swizzle_pipe[4] = 4;
1340                         swizzle_pipe[5] = 5;
1341                 } else {
1342                         swizzle_pipe[0] = 0;
1343                         swizzle_pipe[1] = 2;
1344                         swizzle_pipe[2] = 4;
1345                         swizzle_pipe[3] = 1;
1346                         swizzle_pipe[4] = 3;
1347                         swizzle_pipe[5] = 5;
1348                 }
1349                 break;
1350         case 8:
1351                 if (force_no_swizzle) {
1352                         swizzle_pipe[0] = 0;
1353                         swizzle_pipe[1] = 1;
1354                         swizzle_pipe[2] = 2;
1355                         swizzle_pipe[3] = 3;
1356                         swizzle_pipe[4] = 4;
1357                         swizzle_pipe[5] = 5;
1358                         swizzle_pipe[6] = 6;
1359                         swizzle_pipe[7] = 7;
1360                 } else {
1361                         swizzle_pipe[0] = 0;
1362                         swizzle_pipe[1] = 2;
1363                         swizzle_pipe[2] = 4;
1364                         swizzle_pipe[3] = 6;
1365                         swizzle_pipe[4] = 1;
1366                         swizzle_pipe[5] = 3;
1367                         swizzle_pipe[6] = 5;
1368                         swizzle_pipe[7] = 7;
1369                 }
1370                 break;
1371         }
1372
1373         for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
1374                 while (((1 << cur_backend) & enabled_backends_mask) == 0)
1375                         cur_backend = (cur_backend + 1) % EVERGREEN_MAX_BACKENDS;
1376
1377                 backend_map |= (((cur_backend & 0xf) << (swizzle_pipe[cur_pipe] * 4)));
1378
1379                 cur_backend = (cur_backend + 1) % EVERGREEN_MAX_BACKENDS;
1380         }
1381
1382         return backend_map;
1383 }
1384
1385 static void evergreen_gpu_init(struct radeon_device *rdev)
1386 {
1387         u32 cc_rb_backend_disable = 0;
1388         u32 cc_gc_shader_pipe_config;
1389         u32 gb_addr_config = 0;
1390         u32 mc_shared_chmap, mc_arb_ramcfg;
1391         u32 gb_backend_map;
1392         u32 grbm_gfx_index;
1393         u32 sx_debug_1;
1394         u32 smx_dc_ctl0;
1395         u32 sq_config;
1396         u32 sq_lds_resource_mgmt;
1397         u32 sq_gpr_resource_mgmt_1;
1398         u32 sq_gpr_resource_mgmt_2;
1399         u32 sq_gpr_resource_mgmt_3;
1400         u32 sq_thread_resource_mgmt;
1401         u32 sq_thread_resource_mgmt_2;
1402         u32 sq_stack_resource_mgmt_1;
1403         u32 sq_stack_resource_mgmt_2;
1404         u32 sq_stack_resource_mgmt_3;
1405         u32 vgt_cache_invalidation;
1406         u32 hdp_host_path_cntl;
1407         int i, j, num_shader_engines, ps_thread_count;
1408
1409         switch (rdev->family) {
1410         case CHIP_CYPRESS:
1411         case CHIP_HEMLOCK:
1412                 rdev->config.evergreen.num_ses = 2;
1413                 rdev->config.evergreen.max_pipes = 4;
1414                 rdev->config.evergreen.max_tile_pipes = 8;
1415                 rdev->config.evergreen.max_simds = 10;
1416                 rdev->config.evergreen.max_backends = 4 * rdev->config.evergreen.num_ses;
1417                 rdev->config.evergreen.max_gprs = 256;
1418                 rdev->config.evergreen.max_threads = 248;
1419                 rdev->config.evergreen.max_gs_threads = 32;
1420                 rdev->config.evergreen.max_stack_entries = 512;
1421                 rdev->config.evergreen.sx_num_of_sets = 4;
1422                 rdev->config.evergreen.sx_max_export_size = 256;
1423                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1424                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1425                 rdev->config.evergreen.max_hw_contexts = 8;
1426                 rdev->config.evergreen.sq_num_cf_insts = 2;
1427
1428                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1429                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1430                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1431                 break;
1432         case CHIP_JUNIPER:
1433                 rdev->config.evergreen.num_ses = 1;
1434                 rdev->config.evergreen.max_pipes = 4;
1435                 rdev->config.evergreen.max_tile_pipes = 4;
1436                 rdev->config.evergreen.max_simds = 10;
1437                 rdev->config.evergreen.max_backends = 4 * rdev->config.evergreen.num_ses;
1438                 rdev->config.evergreen.max_gprs = 256;
1439                 rdev->config.evergreen.max_threads = 248;
1440                 rdev->config.evergreen.max_gs_threads = 32;
1441                 rdev->config.evergreen.max_stack_entries = 512;
1442                 rdev->config.evergreen.sx_num_of_sets = 4;
1443                 rdev->config.evergreen.sx_max_export_size = 256;
1444                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1445                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1446                 rdev->config.evergreen.max_hw_contexts = 8;
1447                 rdev->config.evergreen.sq_num_cf_insts = 2;
1448
1449                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1450                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1451                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1452                 break;
1453         case CHIP_REDWOOD:
1454                 rdev->config.evergreen.num_ses = 1;
1455                 rdev->config.evergreen.max_pipes = 4;
1456                 rdev->config.evergreen.max_tile_pipes = 4;
1457                 rdev->config.evergreen.max_simds = 5;
1458                 rdev->config.evergreen.max_backends = 2 * rdev->config.evergreen.num_ses;
1459                 rdev->config.evergreen.max_gprs = 256;
1460                 rdev->config.evergreen.max_threads = 248;
1461                 rdev->config.evergreen.max_gs_threads = 32;
1462                 rdev->config.evergreen.max_stack_entries = 256;
1463                 rdev->config.evergreen.sx_num_of_sets = 4;
1464                 rdev->config.evergreen.sx_max_export_size = 256;
1465                 rdev->config.evergreen.sx_max_export_pos_size = 64;
1466                 rdev->config.evergreen.sx_max_export_smx_size = 192;
1467                 rdev->config.evergreen.max_hw_contexts = 8;
1468                 rdev->config.evergreen.sq_num_cf_insts = 2;
1469
1470                 rdev->config.evergreen.sc_prim_fifo_size = 0x100;
1471                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1472                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1473                 break;
1474         case CHIP_CEDAR:
1475         default:
1476                 rdev->config.evergreen.num_ses = 1;
1477                 rdev->config.evergreen.max_pipes = 2;
1478                 rdev->config.evergreen.max_tile_pipes = 2;
1479                 rdev->config.evergreen.max_simds = 2;
1480                 rdev->config.evergreen.max_backends = 1 * rdev->config.evergreen.num_ses;
1481                 rdev->config.evergreen.max_gprs = 256;
1482                 rdev->config.evergreen.max_threads = 192;
1483                 rdev->config.evergreen.max_gs_threads = 16;
1484                 rdev->config.evergreen.max_stack_entries = 256;
1485                 rdev->config.evergreen.sx_num_of_sets = 4;
1486                 rdev->config.evergreen.sx_max_export_size = 128;
1487                 rdev->config.evergreen.sx_max_export_pos_size = 32;
1488                 rdev->config.evergreen.sx_max_export_smx_size = 96;
1489                 rdev->config.evergreen.max_hw_contexts = 4;
1490                 rdev->config.evergreen.sq_num_cf_insts = 1;
1491
1492                 rdev->config.evergreen.sc_prim_fifo_size = 0x40;
1493                 rdev->config.evergreen.sc_hiz_tile_fifo_size = 0x30;
1494                 rdev->config.evergreen.sc_earlyz_tile_fifo_size = 0x130;
1495                 break;
1496         }
1497
1498         /* Initialize HDP */
1499         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1500                 WREG32((0x2c14 + j), 0x00000000);
1501                 WREG32((0x2c18 + j), 0x00000000);
1502                 WREG32((0x2c1c + j), 0x00000000);
1503                 WREG32((0x2c20 + j), 0x00000000);
1504                 WREG32((0x2c24 + j), 0x00000000);
1505         }
1506
1507         WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
1508
1509         cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & ~2;
1510
1511         cc_gc_shader_pipe_config |=
1512                 INACTIVE_QD_PIPES((EVERGREEN_MAX_PIPES_MASK << rdev->config.evergreen.max_pipes)
1513                                   & EVERGREEN_MAX_PIPES_MASK);
1514         cc_gc_shader_pipe_config |=
1515                 INACTIVE_SIMDS((EVERGREEN_MAX_SIMDS_MASK << rdev->config.evergreen.max_simds)
1516                                & EVERGREEN_MAX_SIMDS_MASK);
1517
1518         cc_rb_backend_disable =
1519                 BACKEND_DISABLE((EVERGREEN_MAX_BACKENDS_MASK << rdev->config.evergreen.max_backends)
1520                                 & EVERGREEN_MAX_BACKENDS_MASK);
1521
1522
1523         mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
1524         mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
1525
1526         switch (rdev->config.evergreen.max_tile_pipes) {
1527         case 1:
1528         default:
1529                 gb_addr_config |= NUM_PIPES(0);
1530                 break;
1531         case 2:
1532                 gb_addr_config |= NUM_PIPES(1);
1533                 break;
1534         case 4:
1535                 gb_addr_config |= NUM_PIPES(2);
1536                 break;
1537         case 8:
1538                 gb_addr_config |= NUM_PIPES(3);
1539                 break;
1540         }
1541
1542         gb_addr_config |= PIPE_INTERLEAVE_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
1543         gb_addr_config |= BANK_INTERLEAVE_SIZE(0);
1544         gb_addr_config |= NUM_SHADER_ENGINES(rdev->config.evergreen.num_ses - 1);
1545         gb_addr_config |= SHADER_ENGINE_TILE_SIZE(1);
1546         gb_addr_config |= NUM_GPUS(0); /* Hemlock? */
1547         gb_addr_config |= MULTI_GPU_TILE_SIZE(2);
1548
1549         if (((mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT) > 2)
1550                 gb_addr_config |= ROW_SIZE(2);
1551         else
1552                 gb_addr_config |= ROW_SIZE((mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT);
1553
1554         if (rdev->ddev->pdev->device == 0x689e) {
1555                 u32 efuse_straps_4;
1556                 u32 efuse_straps_3;
1557                 u8 efuse_box_bit_131_124;
1558
1559                 WREG32(RCU_IND_INDEX, 0x204);
1560                 efuse_straps_4 = RREG32(RCU_IND_DATA);
1561                 WREG32(RCU_IND_INDEX, 0x203);
1562                 efuse_straps_3 = RREG32(RCU_IND_DATA);
1563                 efuse_box_bit_131_124 = (u8)(((efuse_straps_4 & 0xf) << 4) | ((efuse_straps_3 & 0xf0000000) >> 28));
1564
1565                 switch(efuse_box_bit_131_124) {
1566                 case 0x00:
1567                         gb_backend_map = 0x76543210;
1568                         break;
1569                 case 0x55:
1570                         gb_backend_map = 0x77553311;
1571                         break;
1572                 case 0x56:
1573                         gb_backend_map = 0x77553300;
1574                         break;
1575                 case 0x59:
1576                         gb_backend_map = 0x77552211;
1577                         break;
1578                 case 0x66:
1579                         gb_backend_map = 0x77443300;
1580                         break;
1581                 case 0x99:
1582                         gb_backend_map = 0x66552211;
1583                         break;
1584                 case 0x5a:
1585                         gb_backend_map = 0x77552200;
1586                         break;
1587                 case 0xaa:
1588                         gb_backend_map = 0x66442200;
1589                         break;
1590                 case 0x95:
1591                         gb_backend_map = 0x66553311;
1592                         break;
1593                 default:
1594                         DRM_ERROR("bad backend map, using default\n");
1595                         gb_backend_map =
1596                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1597                                                                        rdev->config.evergreen.max_tile_pipes,
1598                                                                        rdev->config.evergreen.max_backends,
1599                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1600                                                                    rdev->config.evergreen.max_backends) &
1601                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1602                         break;
1603                 }
1604         } else if (rdev->ddev->pdev->device == 0x68b9) {
1605                 u32 efuse_straps_3;
1606                 u8 efuse_box_bit_127_124;
1607
1608                 WREG32(RCU_IND_INDEX, 0x203);
1609                 efuse_straps_3 = RREG32(RCU_IND_DATA);
1610                 efuse_box_bit_127_124 = (u8)((efuse_straps_3 & 0xF0000000) >> 28);
1611
1612                 switch(efuse_box_bit_127_124) {
1613                 case 0x0:
1614                         gb_backend_map = 0x00003210;
1615                         break;
1616                 case 0x5:
1617                 case 0x6:
1618                 case 0x9:
1619                 case 0xa:
1620                         gb_backend_map = 0x00003311;
1621                         break;
1622                 default:
1623                         DRM_ERROR("bad backend map, using default\n");
1624                         gb_backend_map =
1625                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1626                                                                        rdev->config.evergreen.max_tile_pipes,
1627                                                                        rdev->config.evergreen.max_backends,
1628                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1629                                                                    rdev->config.evergreen.max_backends) &
1630                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1631                         break;
1632                 }
1633         } else {
1634                 switch (rdev->family) {
1635                 case CHIP_CYPRESS:
1636                 case CHIP_HEMLOCK:
1637                         gb_backend_map = 0x66442200;
1638                         break;
1639                 case CHIP_JUNIPER:
1640                         gb_backend_map = 0x00006420;
1641                         break;
1642                 default:
1643                         gb_backend_map =
1644                                 evergreen_get_tile_pipe_to_backend_map(rdev,
1645                                                                        rdev->config.evergreen.max_tile_pipes,
1646                                                                        rdev->config.evergreen.max_backends,
1647                                                                        ((EVERGREEN_MAX_BACKENDS_MASK <<
1648                                                                          rdev->config.evergreen.max_backends) &
1649                                                                         EVERGREEN_MAX_BACKENDS_MASK));
1650                 }
1651         }
1652
1653         rdev->config.evergreen.tile_config = gb_addr_config;
1654         WREG32(GB_BACKEND_MAP, gb_backend_map);
1655         WREG32(GB_ADDR_CONFIG, gb_addr_config);
1656         WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
1657         WREG32(HDP_ADDR_CONFIG, gb_addr_config);
1658
1659         num_shader_engines = ((RREG32(GB_ADDR_CONFIG) & NUM_SHADER_ENGINES(3)) >> 12) + 1;
1660         grbm_gfx_index = INSTANCE_BROADCAST_WRITES;
1661
1662         for (i = 0; i < rdev->config.evergreen.num_ses; i++) {
1663                 u32 rb = cc_rb_backend_disable | (0xf0 << 16);
1664                 u32 sp = cc_gc_shader_pipe_config;
1665                 u32 gfx = grbm_gfx_index | SE_INDEX(i);
1666
1667                 if (i == num_shader_engines) {
1668                         rb |= BACKEND_DISABLE(EVERGREEN_MAX_BACKENDS_MASK);
1669                         sp |= INACTIVE_SIMDS(EVERGREEN_MAX_SIMDS_MASK);
1670                 }
1671
1672                 WREG32(GRBM_GFX_INDEX, gfx);
1673                 WREG32(RLC_GFX_INDEX, gfx);
1674
1675                 WREG32(CC_RB_BACKEND_DISABLE, rb);
1676                 WREG32(CC_SYS_RB_BACKEND_DISABLE, rb);
1677                 WREG32(GC_USER_RB_BACKEND_DISABLE, rb);
1678                 WREG32(CC_GC_SHADER_PIPE_CONFIG, sp);
1679         }
1680
1681         grbm_gfx_index |= SE_BROADCAST_WRITES;
1682         WREG32(GRBM_GFX_INDEX, grbm_gfx_index);
1683         WREG32(RLC_GFX_INDEX, grbm_gfx_index);
1684
1685         WREG32(CGTS_SYS_TCC_DISABLE, 0);
1686         WREG32(CGTS_TCC_DISABLE, 0);
1687         WREG32(CGTS_USER_SYS_TCC_DISABLE, 0);
1688         WREG32(CGTS_USER_TCC_DISABLE, 0);
1689
1690         /* set HW defaults for 3D engine */
1691         WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
1692                                      ROQ_IB2_START(0x2b)));
1693
1694         WREG32(CP_MEQ_THRESHOLDS, STQ_SPLIT(0x30));
1695
1696         WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO |
1697                              SYNC_GRADIENT |
1698                              SYNC_WALKER |
1699                              SYNC_ALIGNER));
1700
1701         sx_debug_1 = RREG32(SX_DEBUG_1);
1702         sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
1703         WREG32(SX_DEBUG_1, sx_debug_1);
1704
1705
1706         smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
1707         smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
1708         smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.evergreen.sx_num_of_sets);
1709         WREG32(SMX_DC_CTL0, smx_dc_ctl0);
1710
1711         WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_size / 4) - 1) |
1712                                         POSITION_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_pos_size / 4) - 1) |
1713                                         SMX_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_smx_size / 4) - 1)));
1714
1715         WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.evergreen.sc_prim_fifo_size) |
1716                                  SC_HIZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_hiz_tile_fifo_size) |
1717                                  SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.evergreen.sc_earlyz_tile_fifo_size)));
1718
1719         WREG32(VGT_NUM_INSTANCES, 1);
1720         WREG32(SPI_CONFIG_CNTL, 0);
1721         WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));
1722         WREG32(CP_PERFMON_CNTL, 0);
1723
1724         WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.evergreen.sq_num_cf_insts) |
1725                                   FETCH_FIFO_HIWATER(0x4) |
1726                                   DONE_FIFO_HIWATER(0xe0) |
1727                                   ALU_UPDATE_FIFO_HIWATER(0x8)));
1728
1729         sq_config = RREG32(SQ_CONFIG);
1730         sq_config &= ~(PS_PRIO(3) |
1731                        VS_PRIO(3) |
1732                        GS_PRIO(3) |
1733                        ES_PRIO(3));
1734         sq_config |= (VC_ENABLE |
1735                       EXPORT_SRC_C |
1736                       PS_PRIO(0) |
1737                       VS_PRIO(1) |
1738                       GS_PRIO(2) |
1739                       ES_PRIO(3));
1740
1741         if (rdev->family == CHIP_CEDAR)
1742                 /* no vertex cache */
1743                 sq_config &= ~VC_ENABLE;
1744
1745         sq_lds_resource_mgmt = RREG32(SQ_LDS_RESOURCE_MGMT);
1746
1747         sq_gpr_resource_mgmt_1 = NUM_PS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2))* 12 / 32);
1748         sq_gpr_resource_mgmt_1 |= NUM_VS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 6 / 32);
1749         sq_gpr_resource_mgmt_1 |= NUM_CLAUSE_TEMP_GPRS(4);
1750         sq_gpr_resource_mgmt_2 = NUM_GS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 4 / 32);
1751         sq_gpr_resource_mgmt_2 |= NUM_ES_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 4 / 32);
1752         sq_gpr_resource_mgmt_3 = NUM_HS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 3 / 32);
1753         sq_gpr_resource_mgmt_3 |= NUM_LS_GPRS((rdev->config.evergreen.max_gprs - (4 * 2)) * 3 / 32);
1754
1755         if (rdev->family == CHIP_CEDAR)
1756                 ps_thread_count = 96;
1757         else
1758                 ps_thread_count = 128;
1759
1760         sq_thread_resource_mgmt = NUM_PS_THREADS(ps_thread_count);
1761         sq_thread_resource_mgmt |= NUM_VS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
1762         sq_thread_resource_mgmt |= NUM_GS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
1763         sq_thread_resource_mgmt |= NUM_ES_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
1764         sq_thread_resource_mgmt_2 = NUM_HS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
1765         sq_thread_resource_mgmt_2 |= NUM_LS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
1766
1767         sq_stack_resource_mgmt_1 = NUM_PS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1768         sq_stack_resource_mgmt_1 |= NUM_VS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1769         sq_stack_resource_mgmt_2 = NUM_GS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1770         sq_stack_resource_mgmt_2 |= NUM_ES_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1771         sq_stack_resource_mgmt_3 = NUM_HS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1772         sq_stack_resource_mgmt_3 |= NUM_LS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
1773
1774         WREG32(SQ_CONFIG, sq_config);
1775         WREG32(SQ_GPR_RESOURCE_MGMT_1, sq_gpr_resource_mgmt_1);
1776         WREG32(SQ_GPR_RESOURCE_MGMT_2, sq_gpr_resource_mgmt_2);
1777         WREG32(SQ_GPR_RESOURCE_MGMT_3, sq_gpr_resource_mgmt_3);
1778         WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
1779         WREG32(SQ_THREAD_RESOURCE_MGMT_2, sq_thread_resource_mgmt_2);
1780         WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
1781         WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
1782         WREG32(SQ_STACK_RESOURCE_MGMT_3, sq_stack_resource_mgmt_3);
1783         WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, 0);
1784         WREG32(SQ_LDS_RESOURCE_MGMT, sq_lds_resource_mgmt);
1785
1786         WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
1787                                           FORCE_EOV_MAX_REZ_CNT(255)));
1788
1789         if (rdev->family == CHIP_CEDAR)
1790                 vgt_cache_invalidation = CACHE_INVALIDATION(TC_ONLY);
1791         else
1792                 vgt_cache_invalidation = CACHE_INVALIDATION(VC_AND_TC);
1793         vgt_cache_invalidation |= AUTO_INVLD_EN(ES_AND_GS_AUTO);
1794         WREG32(VGT_CACHE_INVALIDATION, vgt_cache_invalidation);
1795
1796         WREG32(VGT_GS_VERTEX_REUSE, 16);
1797         WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
1798
1799         WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, 14);
1800         WREG32(VGT_OUT_DEALLOC_CNTL, 16);
1801
1802         WREG32(CB_PERF_CTR0_SEL_0, 0);
1803         WREG32(CB_PERF_CTR0_SEL_1, 0);
1804         WREG32(CB_PERF_CTR1_SEL_0, 0);
1805         WREG32(CB_PERF_CTR1_SEL_1, 0);
1806         WREG32(CB_PERF_CTR2_SEL_0, 0);
1807         WREG32(CB_PERF_CTR2_SEL_1, 0);
1808         WREG32(CB_PERF_CTR3_SEL_0, 0);
1809         WREG32(CB_PERF_CTR3_SEL_1, 0);
1810
1811         /* clear render buffer base addresses */
1812         WREG32(CB_COLOR0_BASE, 0);
1813         WREG32(CB_COLOR1_BASE, 0);
1814         WREG32(CB_COLOR2_BASE, 0);
1815         WREG32(CB_COLOR3_BASE, 0);
1816         WREG32(CB_COLOR4_BASE, 0);
1817         WREG32(CB_COLOR5_BASE, 0);
1818         WREG32(CB_COLOR6_BASE, 0);
1819         WREG32(CB_COLOR7_BASE, 0);
1820         WREG32(CB_COLOR8_BASE, 0);
1821         WREG32(CB_COLOR9_BASE, 0);
1822         WREG32(CB_COLOR10_BASE, 0);
1823         WREG32(CB_COLOR11_BASE, 0);
1824
1825         /* set the shader const cache sizes to 0 */
1826         for (i = SQ_ALU_CONST_BUFFER_SIZE_PS_0; i < 0x28200; i += 4)
1827                 WREG32(i, 0);
1828         for (i = SQ_ALU_CONST_BUFFER_SIZE_HS_0; i < 0x29000; i += 4)
1829                 WREG32(i, 0);
1830
1831         hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
1832         WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
1833
1834         WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
1835
1836         udelay(50);
1837
1838 }
1839
1840 int evergreen_mc_init(struct radeon_device *rdev)
1841 {
1842         u32 tmp;
1843         int chansize, numchan;
1844
1845         /* Get VRAM informations */
1846         rdev->mc.vram_is_ddr = true;
1847         tmp = RREG32(MC_ARB_RAMCFG);
1848         if (tmp & CHANSIZE_OVERRIDE) {
1849                 chansize = 16;
1850         } else if (tmp & CHANSIZE_MASK) {
1851                 chansize = 64;
1852         } else {
1853                 chansize = 32;
1854         }
1855         tmp = RREG32(MC_SHARED_CHMAP);
1856         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
1857         case 0:
1858         default:
1859                 numchan = 1;
1860                 break;
1861         case 1:
1862                 numchan = 2;
1863                 break;
1864         case 2:
1865                 numchan = 4;
1866                 break;
1867         case 3:
1868                 numchan = 8;
1869                 break;
1870         }
1871         rdev->mc.vram_width = numchan * chansize;
1872         /* Could aper size report 0 ? */
1873         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
1874         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
1875         /* Setup GPU memory space */
1876         /* size in MB on evergreen */
1877         rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
1878         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
1879         rdev->mc.visible_vram_size = rdev->mc.aper_size;
1880         rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
1881         r600_vram_gtt_location(rdev, &rdev->mc);
1882         radeon_update_bandwidth_info(rdev);
1883
1884         return 0;
1885 }
1886
1887 bool evergreen_gpu_is_lockup(struct radeon_device *rdev)
1888 {
1889         /* FIXME: implement for evergreen */
1890         return false;
1891 }
1892
1893 static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
1894 {
1895         struct evergreen_mc_save save;
1896         u32 srbm_reset = 0;
1897         u32 grbm_reset = 0;
1898
1899         dev_info(rdev->dev, "GPU softreset \n");
1900         dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1901                 RREG32(GRBM_STATUS));
1902         dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1903                 RREG32(GRBM_STATUS_SE0));
1904         dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1905                 RREG32(GRBM_STATUS_SE1));
1906         dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1907                 RREG32(SRBM_STATUS));
1908         evergreen_mc_stop(rdev, &save);
1909         if (evergreen_mc_wait_for_idle(rdev)) {
1910                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1911         }
1912         /* Disable CP parsing/prefetching */
1913         WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
1914
1915         /* reset all the gfx blocks */
1916         grbm_reset = (SOFT_RESET_CP |
1917                       SOFT_RESET_CB |
1918                       SOFT_RESET_DB |
1919                       SOFT_RESET_PA |
1920                       SOFT_RESET_SC |
1921                       SOFT_RESET_SPI |
1922                       SOFT_RESET_SH |
1923                       SOFT_RESET_SX |
1924                       SOFT_RESET_TC |
1925                       SOFT_RESET_TA |
1926                       SOFT_RESET_VC |
1927                       SOFT_RESET_VGT);
1928
1929         dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
1930         WREG32(GRBM_SOFT_RESET, grbm_reset);
1931         (void)RREG32(GRBM_SOFT_RESET);
1932         udelay(50);
1933         WREG32(GRBM_SOFT_RESET, 0);
1934         (void)RREG32(GRBM_SOFT_RESET);
1935
1936         /* reset all the system blocks */
1937         srbm_reset = SRBM_SOFT_RESET_ALL_MASK;
1938
1939         dev_info(rdev->dev, "  SRBM_SOFT_RESET=0x%08X\n", srbm_reset);
1940         WREG32(SRBM_SOFT_RESET, srbm_reset);
1941         (void)RREG32(SRBM_SOFT_RESET);
1942         udelay(50);
1943         WREG32(SRBM_SOFT_RESET, 0);
1944         (void)RREG32(SRBM_SOFT_RESET);
1945         /* Wait a little for things to settle down */
1946         udelay(50);
1947         dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1948                 RREG32(GRBM_STATUS));
1949         dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1950                 RREG32(GRBM_STATUS_SE0));
1951         dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1952                 RREG32(GRBM_STATUS_SE1));
1953         dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1954                 RREG32(SRBM_STATUS));
1955         /* After reset we need to reinit the asic as GPU often endup in an
1956          * incoherent state.
1957          */
1958         atom_asic_init(rdev->mode_info.atom_context);
1959         evergreen_mc_resume(rdev, &save);
1960         return 0;
1961 }
1962
1963 int evergreen_asic_reset(struct radeon_device *rdev)
1964 {
1965         return evergreen_gpu_soft_reset(rdev);
1966 }
1967
1968 /* Interrupts */
1969
1970 u32 evergreen_get_vblank_counter(struct radeon_device *rdev, int crtc)
1971 {
1972         switch (crtc) {
1973         case 0:
1974                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC0_REGISTER_OFFSET);
1975         case 1:
1976                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC1_REGISTER_OFFSET);
1977         case 2:
1978                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC2_REGISTER_OFFSET);
1979         case 3:
1980                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC3_REGISTER_OFFSET);
1981         case 4:
1982                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC4_REGISTER_OFFSET);
1983         case 5:
1984                 return RREG32(CRTC_STATUS_FRAME_COUNT + EVERGREEN_CRTC5_REGISTER_OFFSET);
1985         default:
1986                 return 0;
1987         }
1988 }
1989
1990 void evergreen_disable_interrupt_state(struct radeon_device *rdev)
1991 {
1992         u32 tmp;
1993
1994         WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
1995         WREG32(GRBM_INT_CNTL, 0);
1996         WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
1997         WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
1998         WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
1999         WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
2000         WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
2001         WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
2002
2003         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
2004         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
2005         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
2006         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
2007         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
2008         WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
2009
2010         WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
2011         WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
2012
2013         tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2014         WREG32(DC_HPD1_INT_CONTROL, tmp);
2015         tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2016         WREG32(DC_HPD2_INT_CONTROL, tmp);
2017         tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2018         WREG32(DC_HPD3_INT_CONTROL, tmp);
2019         tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2020         WREG32(DC_HPD4_INT_CONTROL, tmp);
2021         tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2022         WREG32(DC_HPD5_INT_CONTROL, tmp);
2023         tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2024         WREG32(DC_HPD6_INT_CONTROL, tmp);
2025
2026 }
2027
2028 int evergreen_irq_set(struct radeon_device *rdev)
2029 {
2030         u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
2031         u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
2032         u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
2033         u32 grbm_int_cntl = 0;
2034
2035         if (!rdev->irq.installed) {
2036                 WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
2037                 return -EINVAL;
2038         }
2039         /* don't enable anything if the ih is disabled */
2040         if (!rdev->ih.enabled) {
2041                 r600_disable_interrupts(rdev);
2042                 /* force the active interrupt state to all disabled */
2043                 evergreen_disable_interrupt_state(rdev);
2044                 return 0;
2045         }
2046
2047         hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
2048         hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
2049         hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
2050         hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
2051         hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
2052         hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
2053
2054         if (rdev->irq.sw_int) {
2055                 DRM_DEBUG("evergreen_irq_set: sw int\n");
2056                 cp_int_cntl |= RB_INT_ENABLE;
2057                 cp_int_cntl |= TIME_STAMP_INT_ENABLE;
2058         }
2059         if (rdev->irq.crtc_vblank_int[0]) {
2060                 DRM_DEBUG("evergreen_irq_set: vblank 0\n");
2061                 crtc1 |= VBLANK_INT_MASK;
2062         }
2063         if (rdev->irq.crtc_vblank_int[1]) {
2064                 DRM_DEBUG("evergreen_irq_set: vblank 1\n");
2065                 crtc2 |= VBLANK_INT_MASK;
2066         }
2067         if (rdev->irq.crtc_vblank_int[2]) {
2068                 DRM_DEBUG("evergreen_irq_set: vblank 2\n");
2069                 crtc3 |= VBLANK_INT_MASK;
2070         }
2071         if (rdev->irq.crtc_vblank_int[3]) {
2072                 DRM_DEBUG("evergreen_irq_set: vblank 3\n");
2073                 crtc4 |= VBLANK_INT_MASK;
2074         }
2075         if (rdev->irq.crtc_vblank_int[4]) {
2076                 DRM_DEBUG("evergreen_irq_set: vblank 4\n");
2077                 crtc5 |= VBLANK_INT_MASK;
2078         }
2079         if (rdev->irq.crtc_vblank_int[5]) {
2080                 DRM_DEBUG("evergreen_irq_set: vblank 5\n");
2081                 crtc6 |= VBLANK_INT_MASK;
2082         }
2083         if (rdev->irq.hpd[0]) {
2084                 DRM_DEBUG("evergreen_irq_set: hpd 1\n");
2085                 hpd1 |= DC_HPDx_INT_EN;
2086         }
2087         if (rdev->irq.hpd[1]) {
2088                 DRM_DEBUG("evergreen_irq_set: hpd 2\n");
2089                 hpd2 |= DC_HPDx_INT_EN;
2090         }
2091         if (rdev->irq.hpd[2]) {
2092                 DRM_DEBUG("evergreen_irq_set: hpd 3\n");
2093                 hpd3 |= DC_HPDx_INT_EN;
2094         }
2095         if (rdev->irq.hpd[3]) {
2096                 DRM_DEBUG("evergreen_irq_set: hpd 4\n");
2097                 hpd4 |= DC_HPDx_INT_EN;
2098         }
2099         if (rdev->irq.hpd[4]) {
2100                 DRM_DEBUG("evergreen_irq_set: hpd 5\n");
2101                 hpd5 |= DC_HPDx_INT_EN;
2102         }
2103         if (rdev->irq.hpd[5]) {
2104                 DRM_DEBUG("evergreen_irq_set: hpd 6\n");
2105                 hpd6 |= DC_HPDx_INT_EN;
2106         }
2107         if (rdev->irq.gui_idle) {
2108                 DRM_DEBUG("gui idle\n");
2109                 grbm_int_cntl |= GUI_IDLE_INT_ENABLE;
2110         }
2111
2112         WREG32(CP_INT_CNTL, cp_int_cntl);
2113         WREG32(GRBM_INT_CNTL, grbm_int_cntl);
2114
2115         WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
2116         WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
2117         WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, crtc3);
2118         WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, crtc4);
2119         WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, crtc5);
2120         WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, crtc6);
2121
2122         WREG32(DC_HPD1_INT_CONTROL, hpd1);
2123         WREG32(DC_HPD2_INT_CONTROL, hpd2);
2124         WREG32(DC_HPD3_INT_CONTROL, hpd3);
2125         WREG32(DC_HPD4_INT_CONTROL, hpd4);
2126         WREG32(DC_HPD5_INT_CONTROL, hpd5);
2127         WREG32(DC_HPD6_INT_CONTROL, hpd6);
2128
2129         return 0;
2130 }
2131
2132 static inline void evergreen_irq_ack(struct radeon_device *rdev,
2133                                      u32 *disp_int,
2134                                      u32 *disp_int_cont,
2135                                      u32 *disp_int_cont2,
2136                                      u32 *disp_int_cont3,
2137                                      u32 *disp_int_cont4,
2138                                      u32 *disp_int_cont5)
2139 {
2140         u32 tmp;
2141
2142         *disp_int = RREG32(DISP_INTERRUPT_STATUS);
2143         *disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
2144         *disp_int_cont2 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE2);
2145         *disp_int_cont3 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE3);
2146         *disp_int_cont4 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE4);
2147         *disp_int_cont5 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE5);
2148
2149         if (*disp_int & LB_D1_VBLANK_INTERRUPT)
2150                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VBLANK_ACK);
2151         if (*disp_int & LB_D1_VLINE_INTERRUPT)
2152                 WREG32(VLINE_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VLINE_ACK);
2153
2154         if (*disp_int_cont & LB_D2_VBLANK_INTERRUPT)
2155                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VBLANK_ACK);
2156         if (*disp_int_cont & LB_D2_VLINE_INTERRUPT)
2157                 WREG32(VLINE_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VLINE_ACK);
2158
2159         if (*disp_int_cont2 & LB_D3_VBLANK_INTERRUPT)
2160                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VBLANK_ACK);
2161         if (*disp_int_cont2 & LB_D3_VLINE_INTERRUPT)
2162                 WREG32(VLINE_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VLINE_ACK);
2163
2164         if (*disp_int_cont3 & LB_D4_VBLANK_INTERRUPT)
2165                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VBLANK_ACK);
2166         if (*disp_int_cont3 & LB_D4_VLINE_INTERRUPT)
2167                 WREG32(VLINE_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VLINE_ACK);
2168
2169         if (*disp_int_cont4 & LB_D5_VBLANK_INTERRUPT)
2170                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VBLANK_ACK);
2171         if (*disp_int_cont4 & LB_D5_VLINE_INTERRUPT)
2172                 WREG32(VLINE_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VLINE_ACK);
2173
2174         if (*disp_int_cont5 & LB_D6_VBLANK_INTERRUPT)
2175                 WREG32(VBLANK_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VBLANK_ACK);
2176         if (*disp_int_cont5 & LB_D6_VLINE_INTERRUPT)
2177                 WREG32(VLINE_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VLINE_ACK);
2178
2179         if (*disp_int & DC_HPD1_INTERRUPT) {
2180                 tmp = RREG32(DC_HPD1_INT_CONTROL);
2181                 tmp |= DC_HPDx_INT_ACK;
2182                 WREG32(DC_HPD1_INT_CONTROL, tmp);
2183         }
2184         if (*disp_int_cont & DC_HPD2_INTERRUPT) {
2185                 tmp = RREG32(DC_HPD2_INT_CONTROL);
2186                 tmp |= DC_HPDx_INT_ACK;
2187                 WREG32(DC_HPD2_INT_CONTROL, tmp);
2188         }
2189         if (*disp_int_cont2 & DC_HPD3_INTERRUPT) {
2190                 tmp = RREG32(DC_HPD3_INT_CONTROL);
2191                 tmp |= DC_HPDx_INT_ACK;
2192                 WREG32(DC_HPD3_INT_CONTROL, tmp);
2193         }
2194         if (*disp_int_cont3 & DC_HPD4_INTERRUPT) {
2195                 tmp = RREG32(DC_HPD4_INT_CONTROL);
2196                 tmp |= DC_HPDx_INT_ACK;
2197                 WREG32(DC_HPD4_INT_CONTROL, tmp);
2198         }
2199         if (*disp_int_cont4 & DC_HPD5_INTERRUPT) {
2200                 tmp = RREG32(DC_HPD5_INT_CONTROL);
2201                 tmp |= DC_HPDx_INT_ACK;
2202                 WREG32(DC_HPD5_INT_CONTROL, tmp);
2203         }
2204         if (*disp_int_cont5 & DC_HPD6_INTERRUPT) {
2205                 tmp = RREG32(DC_HPD5_INT_CONTROL);
2206                 tmp |= DC_HPDx_INT_ACK;
2207                 WREG32(DC_HPD6_INT_CONTROL, tmp);
2208         }
2209 }
2210
2211 void evergreen_irq_disable(struct radeon_device *rdev)
2212 {
2213         u32 disp_int, disp_int_cont, disp_int_cont2;
2214         u32 disp_int_cont3, disp_int_cont4, disp_int_cont5;
2215
2216         r600_disable_interrupts(rdev);
2217         /* Wait and acknowledge irq */
2218         mdelay(1);
2219         evergreen_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2,
2220                           &disp_int_cont3, &disp_int_cont4, &disp_int_cont5);
2221         evergreen_disable_interrupt_state(rdev);
2222 }
2223
2224 static void evergreen_irq_suspend(struct radeon_device *rdev)
2225 {
2226         evergreen_irq_disable(rdev);
2227         r600_rlc_stop(rdev);
2228 }
2229
2230 static inline u32 evergreen_get_ih_wptr(struct radeon_device *rdev)
2231 {
2232         u32 wptr, tmp;
2233
2234         if (rdev->wb.enabled)
2235                 wptr = rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4];
2236         else
2237                 wptr = RREG32(IH_RB_WPTR);
2238
2239         if (wptr & RB_OVERFLOW) {
2240                 /* When a ring buffer overflow happen start parsing interrupt
2241                  * from the last not overwritten vector (wptr + 16). Hopefully
2242                  * this should allow us to catchup.
2243                  */
2244                 dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, %d, %d)\n",
2245                         wptr, rdev->ih.rptr, (wptr + 16) + rdev->ih.ptr_mask);
2246                 rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
2247                 tmp = RREG32(IH_RB_CNTL);
2248                 tmp |= IH_WPTR_OVERFLOW_CLEAR;
2249                 WREG32(IH_RB_CNTL, tmp);
2250         }
2251         return (wptr & rdev->ih.ptr_mask);
2252 }
2253
2254 int evergreen_irq_process(struct radeon_device *rdev)
2255 {
2256         u32 wptr = evergreen_get_ih_wptr(rdev);
2257         u32 rptr = rdev->ih.rptr;
2258         u32 src_id, src_data;
2259         u32 ring_index;
2260         u32 disp_int, disp_int_cont, disp_int_cont2;
2261         u32 disp_int_cont3, disp_int_cont4, disp_int_cont5;
2262         unsigned long flags;
2263         bool queue_hotplug = false;
2264
2265         DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
2266         if (!rdev->ih.enabled)
2267                 return IRQ_NONE;
2268
2269         spin_lock_irqsave(&rdev->ih.lock, flags);
2270
2271         if (rptr == wptr) {
2272                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2273                 return IRQ_NONE;
2274         }
2275         if (rdev->shutdown) {
2276                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2277                 return IRQ_NONE;
2278         }
2279
2280 restart_ih:
2281         /* display interrupts */
2282         evergreen_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2,
2283                           &disp_int_cont3, &disp_int_cont4, &disp_int_cont5);
2284
2285         rdev->ih.wptr = wptr;
2286         while (rptr != wptr) {
2287                 /* wptr/rptr are in bytes! */
2288                 ring_index = rptr / 4;
2289                 src_id =  rdev->ih.ring[ring_index] & 0xff;
2290                 src_data = rdev->ih.ring[ring_index + 1] & 0xfffffff;
2291
2292                 switch (src_id) {
2293                 case 1: /* D1 vblank/vline */
2294                         switch (src_data) {
2295                         case 0: /* D1 vblank */
2296                                 if (disp_int & LB_D1_VBLANK_INTERRUPT) {
2297                                         drm_handle_vblank(rdev->ddev, 0);
2298                                         wake_up(&rdev->irq.vblank_queue);
2299                                         disp_int &= ~LB_D1_VBLANK_INTERRUPT;
2300                                         DRM_DEBUG("IH: D1 vblank\n");
2301                                 }
2302                                 break;
2303                         case 1: /* D1 vline */
2304                                 if (disp_int & LB_D1_VLINE_INTERRUPT) {
2305                                         disp_int &= ~LB_D1_VLINE_INTERRUPT;
2306                                         DRM_DEBUG("IH: D1 vline\n");
2307                                 }
2308                                 break;
2309                         default:
2310                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2311                                 break;
2312                         }
2313                         break;
2314                 case 2: /* D2 vblank/vline */
2315                         switch (src_data) {
2316                         case 0: /* D2 vblank */
2317                                 if (disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
2318                                         drm_handle_vblank(rdev->ddev, 1);
2319                                         wake_up(&rdev->irq.vblank_queue);
2320                                         disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
2321                                         DRM_DEBUG("IH: D2 vblank\n");
2322                                 }
2323                                 break;
2324                         case 1: /* D2 vline */
2325                                 if (disp_int_cont & LB_D2_VLINE_INTERRUPT) {
2326                                         disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
2327                                         DRM_DEBUG("IH: D2 vline\n");
2328                                 }
2329                                 break;
2330                         default:
2331                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2332                                 break;
2333                         }
2334                         break;
2335                 case 3: /* D3 vblank/vline */
2336                         switch (src_data) {
2337                         case 0: /* D3 vblank */
2338                                 if (disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
2339                                         drm_handle_vblank(rdev->ddev, 2);
2340                                         wake_up(&rdev->irq.vblank_queue);
2341                                         disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
2342                                         DRM_DEBUG("IH: D3 vblank\n");
2343                                 }
2344                                 break;
2345                         case 1: /* D3 vline */
2346                                 if (disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
2347                                         disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
2348                                         DRM_DEBUG("IH: D3 vline\n");
2349                                 }
2350                                 break;
2351                         default:
2352                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2353                                 break;
2354                         }
2355                         break;
2356                 case 4: /* D4 vblank/vline */
2357                         switch (src_data) {
2358                         case 0: /* D4 vblank */
2359                                 if (disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
2360                                         drm_handle_vblank(rdev->ddev, 3);
2361                                         wake_up(&rdev->irq.vblank_queue);
2362                                         disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
2363                                         DRM_DEBUG("IH: D4 vblank\n");
2364                                 }
2365                                 break;
2366                         case 1: /* D4 vline */
2367                                 if (disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
2368                                         disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
2369                                         DRM_DEBUG("IH: D4 vline\n");
2370                                 }
2371                                 break;
2372                         default:
2373                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2374                                 break;
2375                         }
2376                         break;
2377                 case 5: /* D5 vblank/vline */
2378                         switch (src_data) {
2379                         case 0: /* D5 vblank */
2380                                 if (disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
2381                                         drm_handle_vblank(rdev->ddev, 4);
2382                                         wake_up(&rdev->irq.vblank_queue);
2383                                         disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
2384                                         DRM_DEBUG("IH: D5 vblank\n");
2385                                 }
2386                                 break;
2387                         case 1: /* D5 vline */
2388                                 if (disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
2389                                         disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
2390                                         DRM_DEBUG("IH: D5 vline\n");
2391                                 }
2392                                 break;
2393                         default:
2394                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2395                                 break;
2396                         }
2397                         break;
2398                 case 6: /* D6 vblank/vline */
2399                         switch (src_data) {
2400                         case 0: /* D6 vblank */
2401                                 if (disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
2402                                         drm_handle_vblank(rdev->ddev, 5);
2403                                         wake_up(&rdev->irq.vblank_queue);
2404                                         disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
2405                                         DRM_DEBUG("IH: D6 vblank\n");
2406                                 }
2407                                 break;
2408                         case 1: /* D6 vline */
2409                                 if (disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
2410                                         disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
2411                                         DRM_DEBUG("IH: D6 vline\n");
2412                                 }
2413                                 break;
2414                         default:
2415                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2416                                 break;
2417                         }
2418                         break;
2419                 case 42: /* HPD hotplug */
2420                         switch (src_data) {
2421                         case 0:
2422                                 if (disp_int & DC_HPD1_INTERRUPT) {
2423                                         disp_int &= ~DC_HPD1_INTERRUPT;
2424                                         queue_hotplug = true;
2425                                         DRM_DEBUG("IH: HPD1\n");
2426                                 }
2427                                 break;
2428                         case 1:
2429                                 if (disp_int_cont & DC_HPD2_INTERRUPT) {
2430                                         disp_int_cont &= ~DC_HPD2_INTERRUPT;
2431                                         queue_hotplug = true;
2432                                         DRM_DEBUG("IH: HPD2\n");
2433                                 }
2434                                 break;
2435                         case 2:
2436                                 if (disp_int_cont2 & DC_HPD3_INTERRUPT) {
2437                                         disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
2438                                         queue_hotplug = true;
2439                                         DRM_DEBUG("IH: HPD3\n");
2440                                 }
2441                                 break;
2442                         case 3:
2443                                 if (disp_int_cont3 & DC_HPD4_INTERRUPT) {
2444                                         disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
2445                                         queue_hotplug = true;
2446                                         DRM_DEBUG("IH: HPD4\n");
2447                                 }
2448                                 break;
2449                         case 4:
2450                                 if (disp_int_cont4 & DC_HPD5_INTERRUPT) {
2451                                         disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
2452                                         queue_hotplug = true;
2453                                         DRM_DEBUG("IH: HPD5\n");
2454                                 }
2455                                 break;
2456                         case 5:
2457                                 if (disp_int_cont5 & DC_HPD6_INTERRUPT) {
2458                                         disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
2459                                         queue_hotplug = true;
2460                                         DRM_DEBUG("IH: HPD6\n");
2461                                 }
2462                                 break;
2463                         default:
2464                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2465                                 break;
2466                         }
2467                         break;
2468                 case 176: /* CP_INT in ring buffer */
2469                 case 177: /* CP_INT in IB1 */
2470                 case 178: /* CP_INT in IB2 */
2471                         DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
2472                         radeon_fence_process(rdev);
2473                         break;
2474                 case 181: /* CP EOP event */
2475                         DRM_DEBUG("IH: CP EOP\n");
2476                         radeon_fence_process(rdev);
2477                         break;
2478                 case 233: /* GUI IDLE */
2479                         DRM_DEBUG("IH: CP EOP\n");
2480                         rdev->pm.gui_idle = true;
2481                         wake_up(&rdev->irq.idle_queue);
2482                         break;
2483                 default:
2484                         DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2485                         break;
2486                 }
2487
2488                 /* wptr/rptr are in bytes! */
2489                 rptr += 16;
2490                 rptr &= rdev->ih.ptr_mask;
2491         }
2492         /* make sure wptr hasn't changed while processing */
2493         wptr = evergreen_get_ih_wptr(rdev);
2494         if (wptr != rdev->ih.wptr)
2495                 goto restart_ih;
2496         if (queue_hotplug)
2497                 queue_work(rdev->wq, &rdev->hotplug_work);
2498         rdev->ih.rptr = rptr;
2499         WREG32(IH_RB_RPTR, rdev->ih.rptr);
2500         spin_unlock_irqrestore(&rdev->ih.lock, flags);
2501         return IRQ_HANDLED;
2502 }
2503
2504 static int evergreen_startup(struct radeon_device *rdev)
2505 {
2506         int r;
2507
2508         if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
2509                 r = r600_init_microcode(rdev);
2510                 if (r) {
2511                         DRM_ERROR("Failed to load firmware!\n");
2512                         return r;
2513                 }
2514         }
2515
2516         evergreen_mc_program(rdev);
2517         if (rdev->flags & RADEON_IS_AGP) {
2518                 evergreen_agp_enable(rdev);
2519         } else {
2520                 r = evergreen_pcie_gart_enable(rdev);
2521                 if (r)
2522                         return r;
2523         }
2524         evergreen_gpu_init(rdev);
2525
2526         r = evergreen_blit_init(rdev);
2527         if (r) {
2528                 evergreen_blit_fini(rdev);
2529                 rdev->asic->copy = NULL;
2530                 dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
2531         }
2532
2533         /* allocate wb buffer */
2534         r = radeon_wb_init(rdev);
2535         if (r)
2536                 return r;
2537
2538         /* Enable IRQ */
2539         r = r600_irq_init(rdev);
2540         if (r) {
2541                 DRM_ERROR("radeon: IH init failed (%d).\n", r);
2542                 radeon_irq_kms_fini(rdev);
2543                 return r;
2544         }
2545         evergreen_irq_set(rdev);
2546
2547         r = radeon_ring_init(rdev, rdev->cp.ring_size);
2548         if (r)
2549                 return r;
2550         r = evergreen_cp_load_microcode(rdev);
2551         if (r)
2552                 return r;
2553         r = evergreen_cp_resume(rdev);
2554         if (r)
2555                 return r;
2556
2557         return 0;
2558 }
2559
2560 int evergreen_resume(struct radeon_device *rdev)
2561 {
2562         int r;
2563
2564         /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
2565          * posting will perform necessary task to bring back GPU into good
2566          * shape.
2567          */
2568         /* post card */
2569         atom_asic_init(rdev->mode_info.atom_context);
2570
2571         r = evergreen_startup(rdev);
2572         if (r) {
2573                 DRM_ERROR("r600 startup failed on resume\n");
2574                 return r;
2575         }
2576
2577         r = r600_ib_test(rdev);
2578         if (r) {
2579                 DRM_ERROR("radeon: failled testing IB (%d).\n", r);
2580                 return r;
2581         }
2582
2583         return r;
2584
2585 }
2586
2587 int evergreen_suspend(struct radeon_device *rdev)
2588 {
2589         int r;
2590
2591         /* FIXME: we should wait for ring to be empty */
2592         r700_cp_stop(rdev);
2593         rdev->cp.ready = false;
2594         evergreen_irq_suspend(rdev);
2595         radeon_wb_disable(rdev);
2596         evergreen_pcie_gart_disable(rdev);
2597
2598         /* unpin shaders bo */
2599         r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
2600         if (likely(r == 0)) {
2601                 radeon_bo_unpin(rdev->r600_blit.shader_obj);
2602                 radeon_bo_unreserve(rdev->r600_blit.shader_obj);
2603         }
2604
2605         return 0;
2606 }
2607
2608 int evergreen_copy_blit(struct radeon_device *rdev,
2609                         uint64_t src_offset, uint64_t dst_offset,
2610                         unsigned num_pages, struct radeon_fence *fence)
2611 {
2612         int r;
2613
2614         mutex_lock(&rdev->r600_blit.mutex);
2615         rdev->r600_blit.vb_ib = NULL;
2616         r = evergreen_blit_prepare_copy(rdev, num_pages * RADEON_GPU_PAGE_SIZE);
2617         if (r) {
2618                 if (rdev->r600_blit.vb_ib)
2619                         radeon_ib_free(rdev, &rdev->r600_blit.vb_ib);
2620                 mutex_unlock(&rdev->r600_blit.mutex);
2621                 return r;
2622         }
2623         evergreen_kms_blit_copy(rdev, src_offset, dst_offset, num_pages * RADEON_GPU_PAGE_SIZE);
2624         evergreen_blit_done_copy(rdev, fence);
2625         mutex_unlock(&rdev->r600_blit.mutex);
2626         return 0;
2627 }
2628
2629 static bool evergreen_card_posted(struct radeon_device *rdev)
2630 {
2631         u32 reg;
2632
2633         /* first check CRTCs */
2634         reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
2635                 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) |
2636                 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
2637                 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) |
2638                 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
2639                 RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
2640         if (reg & EVERGREEN_CRTC_MASTER_EN)
2641                 return true;
2642
2643         /* then check MEM_SIZE, in case the crtcs are off */
2644         if (RREG32(CONFIG_MEMSIZE))
2645                 return true;
2646
2647         return false;
2648 }
2649
2650 /* Plan is to move initialization in that function and use
2651  * helper function so that radeon_device_init pretty much
2652  * do nothing more than calling asic specific function. This
2653  * should also allow to remove a bunch of callback function
2654  * like vram_info.
2655  */
2656 int evergreen_init(struct radeon_device *rdev)
2657 {
2658         int r;
2659
2660         r = radeon_dummy_page_init(rdev);
2661         if (r)
2662                 return r;
2663         /* This don't do much */
2664         r = radeon_gem_init(rdev);
2665         if (r)
2666                 return r;
2667         /* Read BIOS */
2668         if (!radeon_get_bios(rdev)) {
2669                 if (ASIC_IS_AVIVO(rdev))
2670                         return -EINVAL;
2671         }
2672         /* Must be an ATOMBIOS */
2673         if (!rdev->is_atom_bios) {
2674                 dev_err(rdev->dev, "Expecting atombios for R600 GPU\n");
2675                 return -EINVAL;
2676         }
2677         r = radeon_atombios_init(rdev);
2678         if (r)
2679                 return r;
2680         /* Post card if necessary */
2681         if (!evergreen_card_posted(rdev)) {
2682                 if (!rdev->bios) {
2683                         dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
2684                         return -EINVAL;
2685                 }
2686                 DRM_INFO("GPU not posted. posting now...\n");
2687                 atom_asic_init(rdev->mode_info.atom_context);
2688         }
2689         /* Initialize scratch registers */
2690         r600_scratch_init(rdev);
2691         /* Initialize surface registers */
2692         radeon_surface_init(rdev);
2693         /* Initialize clocks */
2694         radeon_get_clock_info(rdev->ddev);
2695         /* Fence driver */
2696         r = radeon_fence_driver_init(rdev);
2697         if (r)
2698                 return r;
2699         /* initialize AGP */
2700         if (rdev->flags & RADEON_IS_AGP) {
2701                 r = radeon_agp_init(rdev);
2702                 if (r)
2703                         radeon_agp_disable(rdev);
2704         }
2705         /* initialize memory controller */
2706         r = evergreen_mc_init(rdev);
2707         if (r)
2708                 return r;
2709         /* Memory manager */
2710         r = radeon_bo_init(rdev);
2711         if (r)
2712                 return r;
2713
2714         r = radeon_irq_kms_init(rdev);
2715         if (r)
2716                 return r;
2717
2718         rdev->cp.ring_obj = NULL;
2719         r600_ring_init(rdev, 1024 * 1024);
2720
2721         rdev->ih.ring_obj = NULL;
2722         r600_ih_ring_init(rdev, 64 * 1024);
2723
2724         r = r600_pcie_gart_init(rdev);
2725         if (r)
2726                 return r;
2727
2728         rdev->accel_working = true;
2729         r = evergreen_startup(rdev);
2730         if (r) {
2731                 dev_err(rdev->dev, "disabling GPU acceleration\n");
2732                 r700_cp_fini(rdev);
2733                 r600_irq_fini(rdev);
2734                 radeon_wb_fini(rdev);
2735                 radeon_irq_kms_fini(rdev);
2736                 evergreen_pcie_gart_fini(rdev);
2737                 rdev->accel_working = false;
2738         }
2739         if (rdev->accel_working) {
2740                 r = radeon_ib_pool_init(rdev);
2741                 if (r) {
2742                         DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
2743                         rdev->accel_working = false;
2744                 }
2745                 r = r600_ib_test(rdev);
2746                 if (r) {
2747                         DRM_ERROR("radeon: failed testing IB (%d).\n", r);
2748                         rdev->accel_working = false;
2749                 }
2750         }
2751         return 0;
2752 }
2753
2754 void evergreen_fini(struct radeon_device *rdev)
2755 {
2756         evergreen_blit_fini(rdev);
2757         r700_cp_fini(rdev);
2758         r600_irq_fini(rdev);
2759         radeon_wb_fini(rdev);
2760         radeon_irq_kms_fini(rdev);
2761         evergreen_pcie_gart_fini(rdev);
2762         radeon_gem_fini(rdev);
2763         radeon_fence_driver_fini(rdev);
2764         radeon_agp_fini(rdev);
2765         radeon_bo_fini(rdev);
2766         radeon_atombios_fini(rdev);
2767         kfree(rdev->bios);
2768         rdev->bios = NULL;
2769         radeon_dummy_page_fini(rdev);
2770 }