sys/dev/drm/radeon/rs600.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 /* RS600 / Radeon X1250/X1270 integrated GPU
  29  *
  30  * This file gather function specific to RS600 which is the IGP of
  31  * the X1250/X1270 family supporting intel CPU (while RS690/RS740
  32  * is the X1250/X1270 supporting AMD CPU). The display engine are
  33  * the avivo one, bios is an atombios, 3D block are the one of the
  34  * R4XX family. The GART is different from the RS400 one and is very
  35  * close to the one of the R600 family (R600 likely being an evolution
  36  * of the RS600 GART block).
  37  *
  38  * $FreeBSD: head/sys/dev/drm2/radeon/rs600.c 255573 2013-09-14 17:24:41Z dumbbell $
  39  */
  40
  41 #include <drm/drmP.h>
  42 #include "radeon.h"
  43 #include "radeon_asic.h"
  44 #include "atom.h"
  45 #include "rs600d.h"
  46
  47 #include "rs600_reg_safe.h"
  48
  49 static void rs600_gpu_init(struct radeon_device *rdev);
  50
  51 static const u32 crtc_offsets[2] =
  52 {
  53         0,
  54         AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
  55 };
  56
  57 static bool avivo_is_in_vblank(struct radeon_device *rdev, int crtc)
  58 {
  59         if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
  60                 return true;
  61         else
  62                 return false;
  63 }
  64
  65 static bool avivo_is_counter_moving(struct radeon_device *rdev, int crtc)
  66 {
  67         u32 pos1, pos2;
  68
  69         pos1 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
  70         pos2 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
  71
  72         if (pos1 != pos2)
  73                 return true;
  74         else
  75                 return false;
  76 }
  77
  78 /**
  79  * avivo_wait_for_vblank - vblank wait asic callback.
  80  *
  81  * @rdev: radeon_device pointer
  82  * @crtc: crtc to wait for vblank on
  83  *
  84  * Wait for vblank on the requested crtc (r5xx-r7xx).
  85  */
  86 void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
  87 {
  88         unsigned i = 0;
  89
  90         if (crtc >= rdev->num_crtc)
  91                 return;
  92
  93         if (!(RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN))
  94                 return;
  95
  96         /* depending on when we hit vblank, we may be close to active; if so,
  97          * wait for another frame.
  98          */
  99         while (avivo_is_in_vblank(rdev, crtc)) {
 100                 if (i++ % 100 == 0) {
 101                         if (!avivo_is_counter_moving(rdev, crtc))
 102                                 break;
 103                 }
 104         }
 105
 106         while (!avivo_is_in_vblank(rdev, crtc)) {
 107                 if (i++ % 100 == 0) {
 108                         if (!avivo_is_counter_moving(rdev, crtc))
 109                                 break;
 110                 }
 111         }
 112 }
 113
 114 void rs600_pre_page_flip(struct radeon_device *rdev, int crtc)
 115 {
 116         /* enable the pflip int */
 117         radeon_irq_kms_pflip_irq_get(rdev, crtc);
 118 }
 119
 120 void rs600_post_page_flip(struct radeon_device *rdev, int crtc)
 121 {
 122         /* disable the pflip int */
 123         radeon_irq_kms_pflip_irq_put(rdev, crtc);
 124 }
 125
 126 u32 rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
 127 {
 128         struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
 129         u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
 130         int i;
 131
 132         /* Lock the graphics update lock */
 133         tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
 134         WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
 135
 136         /* update the scanout addresses */
 137         WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
 138                (u32)crtc_base);
 139         WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
 140                (u32)crtc_base);
 141
 142         /* Wait for update_pending to go high. */
 143         for (i = 0; i < rdev->usec_timeout; i++) {
 144                 if (RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING)
 145                         break;
 146                 udelay(1);
 147         }
 148         DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
 149
 150         /* Unlock the lock, so double-buffering can take place inside vblank */
 151         tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
 152         WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
 153
 154         /* Return current update_pending status: */
 155         return RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING;
 156 }
 157
 158 void rs600_pm_misc(struct radeon_device *rdev)
 159 {
 160         int requested_index = rdev->pm.requested_power_state_index;
 161         struct radeon_power_state *ps = &rdev->pm.power_state[requested_index];
 162         struct radeon_voltage *voltage = &ps->clock_info[0].voltage;
 163         u32 tmp, dyn_pwrmgt_sclk_length, dyn_sclk_vol_cntl;
 164         u32 hdp_dyn_cntl, /*mc_host_dyn_cntl,*/ dyn_backbias_cntl;
 165
 166         if ((voltage->type == VOLTAGE_GPIO) && (voltage->gpio.valid)) {
 167                 if (ps->misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) {
 168                         tmp = RREG32(voltage->gpio.reg);
 169                         if (voltage->active_high)
 170                                 tmp |= voltage->gpio.mask;
 171                         else
 172                                 tmp &= ~(voltage->gpio.mask);
 173                         WREG32(voltage->gpio.reg, tmp);
 174                         if (voltage->delay)
 175                                 udelay(voltage->delay);
 176                 } else {
 177                         tmp = RREG32(voltage->gpio.reg);
 178                         if (voltage->active_high)
 179                                 tmp &= ~voltage->gpio.mask;
 180                         else
 181                                 tmp |= voltage->gpio.mask;
 182                         WREG32(voltage->gpio.reg, tmp);
 183                         if (voltage->delay)
 184                                 udelay(voltage->delay);
 185                 }
 186         } else if (voltage->type == VOLTAGE_VDDC)
 187                 radeon_atom_set_voltage(rdev, voltage->vddc_id, SET_VOLTAGE_TYPE_ASIC_VDDC);
 188
 189         dyn_pwrmgt_sclk_length = RREG32_PLL(DYN_PWRMGT_SCLK_LENGTH);
 190         dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_HILEN(0xf);
 191         dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_LOLEN(0xf);
 192         if (ps->misc & ATOM_PM_MISCINFO_ASIC_REDUCED_SPEED_SCLK_EN) {
 193                 if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_2) {
 194                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(2);
 195                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(2);
 196                 } else if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_4) {
 197                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(4);
 198                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(4);
 199                 }
 200         } else {
 201                 dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(1);
 202                 dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(1);
 203         }
 204         WREG32_PLL(DYN_PWRMGT_SCLK_LENGTH, dyn_pwrmgt_sclk_length);
 205
 206         dyn_sclk_vol_cntl = RREG32_PLL(DYN_SCLK_VOL_CNTL);
 207         if (ps->misc & ATOM_PM_MISCINFO_ASIC_DYNAMIC_VOLTAGE_EN) {
 208                 dyn_sclk_vol_cntl |= IO_CG_VOLTAGE_DROP;
 209                 if (voltage->delay) {
 210                         dyn_sclk_vol_cntl |= VOLTAGE_DROP_SYNC;
 211                         dyn_sclk_vol_cntl |= VOLTAGE_DELAY_SEL(voltage->delay);
 212                 } else
 213                         dyn_sclk_vol_cntl &= ~VOLTAGE_DROP_SYNC;
 214         } else
 215                 dyn_sclk_vol_cntl &= ~IO_CG_VOLTAGE_DROP;
 216         WREG32_PLL(DYN_SCLK_VOL_CNTL, dyn_sclk_vol_cntl);
 217
 218         hdp_dyn_cntl = RREG32_PLL(HDP_DYN_CNTL);
 219         if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_HDP_BLOCK_EN)
 220                 hdp_dyn_cntl &= ~HDP_FORCEON;
 221         else
 222                 hdp_dyn_cntl |= HDP_FORCEON;
 223         WREG32_PLL(HDP_DYN_CNTL, hdp_dyn_cntl);
 224 #if 0
 225         /* mc_host_dyn seems to cause hangs from time to time */
 226         mc_host_dyn_cntl = RREG32_PLL(MC_HOST_DYN_CNTL);
 227         if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_MC_HOST_BLOCK_EN)
 228                 mc_host_dyn_cntl &= ~MC_HOST_FORCEON;
 229         else
 230                 mc_host_dyn_cntl |= MC_HOST_FORCEON;
 231         WREG32_PLL(MC_HOST_DYN_CNTL, mc_host_dyn_cntl);
 232 #endif
 233         dyn_backbias_cntl = RREG32_PLL(DYN_BACKBIAS_CNTL);
 234         if (ps->misc & ATOM_PM_MISCINFO2_DYNAMIC_BACK_BIAS_EN)
 235                 dyn_backbias_cntl |= IO_CG_BACKBIAS_EN;
 236         else
 237                 dyn_backbias_cntl &= ~IO_CG_BACKBIAS_EN;
 238         WREG32_PLL(DYN_BACKBIAS_CNTL, dyn_backbias_cntl);
 239
 240         /* set pcie lanes */
 241         if ((rdev->flags & RADEON_IS_PCIE) &&
 242             !(rdev->flags & RADEON_IS_IGP) &&
 243             rdev->asic->pm.set_pcie_lanes &&
 244             (ps->pcie_lanes !=
 245              rdev->pm.power_state[rdev->pm.current_power_state_index].pcie_lanes)) {
 246                 radeon_set_pcie_lanes(rdev,
 247                                       ps->pcie_lanes);
 248                 DRM_DEBUG("Setting: p: %d\n", ps->pcie_lanes);
 249         }
 250 }
 251
 252 void rs600_pm_prepare(struct radeon_device *rdev)
 253 {
 254         struct drm_device *ddev = rdev->ddev;
 255         struct drm_crtc *crtc;
 256         struct radeon_crtc *radeon_crtc;
 257         u32 tmp;
 258
 259         /* disable any active CRTCs */
 260         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 261                 radeon_crtc = to_radeon_crtc(crtc);
 262                 if (radeon_crtc->enabled) {
 263                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 264                         tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 265                         WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 266                 }
 267         }
 268 }
 269
 270 void rs600_pm_finish(struct radeon_device *rdev)
 271 {
 272         struct drm_device *ddev = rdev->ddev;
 273         struct drm_crtc *crtc;
 274         struct radeon_crtc *radeon_crtc;
 275         u32 tmp;
 276
 277         /* enable any active CRTCs */
 278         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 279                 radeon_crtc = to_radeon_crtc(crtc);
 280                 if (radeon_crtc->enabled) {
 281                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 282                         tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 283                         WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 284                 }
 285         }
 286 }
 287
 288 /* hpd for digital panel detect/disconnect */
 289 bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 290 {
 291         u32 tmp;
 292         bool connected = false;
 293
 294         switch (hpd) {
 295         case RADEON_HPD_1:
 296                 tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
 297                 if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
 298                         connected = true;
 299                 break;
 300         case RADEON_HPD_2:
 301                 tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
 302                 if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
 303                         connected = true;
 304                 break;
 305         default:
 306                 break;
 307         }
 308         return connected;
 309 }
 310
 311 void rs600_hpd_set_polarity(struct radeon_device *rdev,
 312                             enum radeon_hpd_id hpd)
 313 {
 314         u32 tmp;
 315         bool connected = rs600_hpd_sense(rdev, hpd);
 316
 317         switch (hpd) {
 318         case RADEON_HPD_1:
 319                 tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 320                 if (connected)
 321                         tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 322                 else
 323                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 324                 WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 325                 break;
 326         case RADEON_HPD_2:
 327                 tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 328                 if (connected)
 329                         tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 330                 else
 331                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 332                 WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 333                 break;
 334         default:
 335                 break;
 336         }
 337 }
 338
 339 void rs600_hpd_init(struct radeon_device *rdev)
 340 {
 341         struct drm_device *dev = rdev->ddev;
 342         struct drm_connector *connector;
 343         unsigned enable = 0;
 344
 345         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 346                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 347                 switch (radeon_connector->hpd.hpd) {
 348                 case RADEON_HPD_1:
 349                         WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 350                                S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
 351                         break;
 352                 case RADEON_HPD_2:
 353                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 354                                S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
 355                         break;
 356                 default:
 357                         break;
 358                 }
 359                 enable |= 1 << radeon_connector->hpd.hpd;
 360                 radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
 361         }
 362         radeon_irq_kms_enable_hpd(rdev, enable);
 363 }
 364
 365 void rs600_hpd_fini(struct radeon_device *rdev)
 366 {
 367         struct drm_device *dev = rdev->ddev;
 368         struct drm_connector *connector;
 369         unsigned disable = 0;
 370
 371         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 372                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 373                 switch (radeon_connector->hpd.hpd) {
 374                 case RADEON_HPD_1:
 375                         WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 376                                S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
 377                         break;
 378                 case RADEON_HPD_2:
 379                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 380                                S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
 381                         break;
 382                 default:
 383                         break;
 384                 }
 385                 disable |= 1 << radeon_connector->hpd.hpd;
 386         }
 387         radeon_irq_kms_disable_hpd(rdev, disable);
 388 }
 389
 390 int rs600_asic_reset(struct radeon_device *rdev)
 391 {
 392         struct rv515_mc_save save;
 393         u32 status, tmp;
 394         int ret = 0;
 395
 396         status = RREG32(R_000E40_RBBM_STATUS);
 397         if (!G_000E40_GUI_ACTIVE(status)) {
 398                 return 0;
 399         }
 400         /* Stops all mc clients */
 401         rv515_mc_stop(rdev, &save);
 402         status = RREG32(R_000E40_RBBM_STATUS);
 403         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 404         /* stop CP */
 405         WREG32(RADEON_CP_CSQ_CNTL, 0);
 406         tmp = RREG32(RADEON_CP_RB_CNTL);
 407         WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
 408         WREG32(RADEON_CP_RB_RPTR_WR, 0);
 409         WREG32(RADEON_CP_RB_WPTR, 0);
 410         WREG32(RADEON_CP_RB_CNTL, tmp);
 411         pci_save_state(device_get_parent(rdev->dev));
 412         /* disable bus mastering */
 413         pci_disable_busmaster(rdev->dev);
 414         mdelay(1);
 415         /* reset GA+VAP */
 416         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
 417                                         S_0000F0_SOFT_RESET_GA(1));
 418         RREG32(R_0000F0_RBBM_SOFT_RESET);
 419         mdelay(500);
 420         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 421         mdelay(1);
 422         status = RREG32(R_000E40_RBBM_STATUS);
 423         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 424         /* reset CP */
 425         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
 426         RREG32(R_0000F0_RBBM_SOFT_RESET);
 427         mdelay(500);
 428         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 429         mdelay(1);
 430         status = RREG32(R_000E40_RBBM_STATUS);
 431         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 432         /* reset MC */
 433         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
 434         RREG32(R_0000F0_RBBM_SOFT_RESET);
 435         mdelay(500);
 436         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 437         mdelay(1);
 438         status = RREG32(R_000E40_RBBM_STATUS);
 439         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 440         /* restore PCI & busmastering */
 441         pci_restore_state(device_get_parent(rdev->dev));
 442         /* Check if GPU is idle */
 443         if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
 444                 dev_err(rdev->dev, "failed to reset GPU\n");
 445                 ret = -1;
 446         } else
 447                 dev_info(rdev->dev, "GPU reset succeed\n");
 448         rv515_mc_resume(rdev, &save);
 449         return ret;
 450 }
 451
 452 /*
 453  * GART.
 454  */
 455 void rs600_gart_tlb_flush(struct radeon_device *rdev)
 456 {
 457         uint32_t tmp;
 458
 459         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 460         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 461         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 462
 463         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 464         tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
 465         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 466
 467         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 468         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 469         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 470         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 471 }
 472
 473 static int rs600_gart_init(struct radeon_device *rdev)
 474 {
 475         int r;
 476
 477         if (rdev->gart.robj) {
 478                 WARN(1, "RS600 GART already initialized\n");
 479                 return 0;
 480         }
 481         /* Initialize common gart structure */
 482         r = radeon_gart_init(rdev);
 483         if (r) {
 484                 return r;
 485         }
 486         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 487         return radeon_gart_table_vram_alloc(rdev);
 488 }
 489
 490 static int rs600_gart_enable(struct radeon_device *rdev)
 491 {
 492         u32 tmp;
 493         int r, i;
 494
 495         if (rdev->gart.robj == NULL) {
 496                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 497                 return -EINVAL;
 498         }
 499         r = radeon_gart_table_vram_pin(rdev);
 500         if (r)
 501                 return r;
 502         radeon_gart_restore(rdev);
 503         /* Enable bus master */
 504         tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
 505         WREG32(RADEON_BUS_CNTL, tmp);
 506         /* FIXME: setup default page */
 507         WREG32_MC(R_000100_MC_PT0_CNTL,
 508                   (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
 509                    S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
 510
 511         for (i = 0; i < 19; i++) {
 512                 WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
 513                           S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
 514                           S_00016C_SYSTEM_ACCESS_MODE_MASK(
 515                                   V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
 516                           S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
 517                                   V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
 518                           S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
 519                           S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
 520                           S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
 521         }
 522         /* enable first context */
 523         WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
 524                   S_000102_ENABLE_PAGE_TABLE(1) |
 525                   S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
 526
 527         /* disable all other contexts */
 528         for (i = 1; i < 8; i++)
 529                 WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
 530
 531         /* setup the page table */
 532         WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
 533                   rdev->gart.table_addr);
 534         WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
 535         WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
 536         WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
 537
 538         /* System context maps to VRAM space */
 539         WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
 540         WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
 541
 542         /* enable page tables */
 543         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 544         WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
 545         tmp = RREG32_MC(R_000009_MC_CNTL1);
 546         WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
 547         rs600_gart_tlb_flush(rdev);
 548         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 549                  (unsigned)(rdev->mc.gtt_size >> 20),
 550                  (unsigned long long)rdev->gart.table_addr);
 551         rdev->gart.ready = true;
 552         return 0;
 553 }
 554
 555 static void rs600_gart_disable(struct radeon_device *rdev)
 556 {
 557         u32 tmp;
 558
 559         /* FIXME: disable out of gart access */
 560         WREG32_MC(R_000100_MC_PT0_CNTL, 0);
 561         tmp = RREG32_MC(R_000009_MC_CNTL1);
 562         WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
 563         radeon_gart_table_vram_unpin(rdev);
 564 }
 565
 566 static void rs600_gart_fini(struct radeon_device *rdev)
 567 {
 568         radeon_gart_fini(rdev);
 569         rs600_gart_disable(rdev);
 570         radeon_gart_table_vram_free(rdev);
 571 }
 572
 573 #define R600_PTE_VALID     (1 << 0)
 574 #define R600_PTE_SYSTEM    (1 << 1)
 575 #define R600_PTE_SNOOPED   (1 << 2)
 576 #define R600_PTE_READABLE  (1 << 5)
 577 #define R600_PTE_WRITEABLE (1 << 6)
 578
 579 int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 580 {
 581         uint64_t *ptr = rdev->gart.ptr;
 582
 583         if (i < 0 || i > rdev->gart.num_gpu_pages) {
 584                 return -EINVAL;
 585         }
 586         addr = addr & 0xFFFFFFFFFFFFF000ULL;
 587         addr |= R600_PTE_VALID | R600_PTE_SYSTEM | R600_PTE_SNOOPED;
 588         addr |= R600_PTE_READABLE | R600_PTE_WRITEABLE;
 589         ptr[i] = addr;
 590         return 0;
 591 }
 592
 593 int rs600_irq_set(struct radeon_device *rdev)
 594 {
 595         uint32_t tmp = 0;
 596         uint32_t mode_int = 0;
 597         u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
 598                 ~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 599         u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
 600                 ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 601         u32 hdmi0;
 602         if (ASIC_IS_DCE2(rdev))
 603                 hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
 604                         ~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 605         else
 606                 hdmi0 = 0;
 607
 608         if (!rdev->irq.installed) {
 609                 WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
 610                 WREG32(R_000040_GEN_INT_CNTL, 0);
 611                 return -EINVAL;
 612         }
 613         if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
 614                 tmp |= S_000040_SW_INT_EN(1);
 615         }
 616         if (rdev->irq.crtc_vblank_int[0] ||
 617             atomic_read(&rdev->irq.pflip[0])) {
 618                 mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
 619         }
 620         if (rdev->irq.crtc_vblank_int[1] ||
 621             atomic_read(&rdev->irq.pflip[1])) {
 622                 mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
 623         }
 624         if (rdev->irq.hpd[0]) {
 625                 hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 626         }
 627         if (rdev->irq.hpd[1]) {
 628                 hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 629         }
 630         if (rdev->irq.afmt[0]) {
 631                 hdmi0 |= S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 632         }
 633         WREG32(R_000040_GEN_INT_CNTL, tmp);
 634         WREG32(R_006540_DxMODE_INT_MASK, mode_int);
 635         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
 636         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 637         if (ASIC_IS_DCE2(rdev))
 638                 WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
 639         return 0;
 640 }
 641
 642 static inline u32 rs600_irq_ack(struct radeon_device *rdev)
 643 {
 644         uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
 645         uint32_t irq_mask = S_000044_SW_INT(1);
 646         u32 tmp;
 647
 648         if (G_000044_DISPLAY_INT_STAT(irqs)) {
 649                 rdev->irq.stat_regs.r500.disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
 650                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 651                         WREG32(R_006534_D1MODE_VBLANK_STATUS,
 652                                 S_006534_D1MODE_VBLANK_ACK(1));
 653                 }
 654                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 655                         WREG32(R_006D34_D2MODE_VBLANK_STATUS,
 656                                 S_006D34_D2MODE_VBLANK_ACK(1));
 657                 }
 658                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 659                         tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 660                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
 661                         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 662                 }
 663                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 664                         tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 665                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
 666                         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 667                 }
 668         } else {
 669                 rdev->irq.stat_regs.r500.disp_int = 0;
 670         }
 671
 672         if (ASIC_IS_DCE2(rdev)) {
 673                 rdev->irq.stat_regs.r500.hdmi0_status = RREG32(R_007404_HDMI0_STATUS) &
 674                         S_007404_HDMI0_AZ_FORMAT_WTRIG(1);
 675                 if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
 676                         tmp = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL);
 677                         tmp |= S_007408_HDMI0_AZ_FORMAT_WTRIG_ACK(1);
 678                         WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, tmp);
 679                 }
 680         } else
 681                 rdev->irq.stat_regs.r500.hdmi0_status = 0;
 682
 683         if (irqs) {
 684                 WREG32(R_000044_GEN_INT_STATUS, irqs);
 685         }
 686         return irqs & irq_mask;
 687 }
 688
 689 void rs600_irq_disable(struct radeon_device *rdev)
 690 {
 691         u32 hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
 692                 ~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 693         WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
 694         WREG32(R_000040_GEN_INT_CNTL, 0);
 695         WREG32(R_006540_DxMODE_INT_MASK, 0);
 696         /* Wait and acknowledge irq */
 697         mdelay(1);
 698         rs600_irq_ack(rdev);
 699 }
 700
 701 irqreturn_t rs600_irq_process(struct radeon_device *rdev)
 702 {
 703         u32 status, msi_rearm;
 704         bool queue_hotplug = false;
 705         bool queue_hdmi = false;
 706
 707         status = rs600_irq_ack(rdev);
 708         if (!status &&
 709             !rdev->irq.stat_regs.r500.disp_int &&
 710             !rdev->irq.stat_regs.r500.hdmi0_status) {
 711                 return IRQ_NONE;
 712         }
 713         while (status ||
 714                rdev->irq.stat_regs.r500.disp_int ||
 715                rdev->irq.stat_regs.r500.hdmi0_status) {
 716                 /* SW interrupt */
 717                 if (G_000044_SW_INT(status)) {
 718                         radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 719                 }
 720                 /* Vertical blank interrupts */
 721                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 722                         if (rdev->irq.crtc_vblank_int[0]) {
 723                                 drm_handle_vblank(rdev->ddev, 0);
 724                                 rdev->pm.vblank_sync = true;
 725                                 wake_up(&rdev->irq.vblank_queue);
 726                         }
 727                         if (atomic_read(&rdev->irq.pflip[0]))
 728                                 radeon_crtc_handle_flip(rdev, 0);
 729                 }
 730                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 731                         if (rdev->irq.crtc_vblank_int[1]) {
 732                                 drm_handle_vblank(rdev->ddev, 1);
 733                                 rdev->pm.vblank_sync = true;
 734                                 wake_up(&rdev->irq.vblank_queue);
 735                         }
 736                         if (atomic_read(&rdev->irq.pflip[1]))
 737                                 radeon_crtc_handle_flip(rdev, 1);
 738                 }
 739                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 740                         queue_hotplug = true;
 741                         DRM_DEBUG("HPD1\n");
 742                 }
 743                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 744                         queue_hotplug = true;
 745                         DRM_DEBUG("HPD2\n");
 746                 }
 747                 if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
 748                         queue_hdmi = true;
 749                         DRM_DEBUG("HDMI0\n");
 750                 }
 751                 status = rs600_irq_ack(rdev);
 752         }
 753         if (queue_hotplug)
 754                 taskqueue_enqueue(rdev->tq, &rdev->hotplug_work);
 755         if (queue_hdmi)
 756                 taskqueue_enqueue(rdev->tq, &rdev->audio_work);
 757         if (rdev->msi_enabled) {
 758                 switch (rdev->family) {
 759                 case CHIP_RS600:
 760                 case CHIP_RS690:
 761                 case CHIP_RS740:
 762                         msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
 763                         WREG32(RADEON_BUS_CNTL, msi_rearm);
 764                         WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
 765                         break;
 766                 default:
 767                         WREG32(RADEON_MSI_REARM_EN, RV370_MSI_REARM_EN);
 768                         break;
 769                 }
 770         }
 771         return IRQ_HANDLED;
 772 }
 773
 774 u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
 775 {
 776         if (crtc == 0)
 777                 return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
 778         else
 779                 return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
 780 }
 781
 782 int rs600_mc_wait_for_idle(struct radeon_device *rdev)
 783 {
 784         unsigned i;
 785
 786         for (i = 0; i < rdev->usec_timeout; i++) {
 787                 if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
 788                         return 0;
 789                 udelay(1);
 790         }
 791         return -1;
 792 }
 793
 794 static void rs600_gpu_init(struct radeon_device *rdev)
 795 {
 796         r420_pipes_init(rdev);
 797         /* Wait for mc idle */
 798         if (rs600_mc_wait_for_idle(rdev))
 799                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 800 }
 801
 802 static void rs600_mc_init(struct radeon_device *rdev)
 803 {
 804         u64 base;
 805
 806         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 807         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 808         rdev->mc.vram_is_ddr = true;
 809         rdev->mc.vram_width = 128;
 810         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 811         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 812         rdev->mc.visible_vram_size = rdev->mc.aper_size;
 813         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
 814         base = RREG32_MC(R_000004_MC_FB_LOCATION);
 815         base = G_000004_MC_FB_START(base) << 16;
 816         radeon_vram_location(rdev, &rdev->mc, base);
 817         rdev->mc.gtt_base_align = 0;
 818         radeon_gtt_location(rdev, &rdev->mc);
 819         radeon_update_bandwidth_info(rdev);
 820 }
 821
 822 void rs600_bandwidth_update(struct radeon_device *rdev)
 823 {
 824         struct drm_display_mode *mode0 = NULL;
 825         struct drm_display_mode *mode1 = NULL;
 826         u32 d1mode_priority_a_cnt, d2mode_priority_a_cnt;
 827         /* FIXME: implement full support */
 828
 829         radeon_update_display_priority(rdev);
 830
 831         if (rdev->mode_info.crtcs[0]->base.enabled)
 832                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
 833         if (rdev->mode_info.crtcs[1]->base.enabled)
 834                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
 835
 836         rs690_line_buffer_adjust(rdev, mode0, mode1);
 837
 838         if (rdev->disp_priority == 2) {
 839                 d1mode_priority_a_cnt = RREG32(R_006548_D1MODE_PRIORITY_A_CNT);
 840                 d2mode_priority_a_cnt = RREG32(R_006D48_D2MODE_PRIORITY_A_CNT);
 841                 d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
 842                 d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
 843                 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
 844                 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
 845                 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
 846                 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
 847         }
 848 }
 849
 850 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 851 {
 852         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 853                 S_000070_MC_IND_CITF_ARB0(1));
 854         return RREG32(R_000074_MC_IND_DATA);
 855 }
 856
 857 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 858 {
 859         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 860                 S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
 861         WREG32(R_000074_MC_IND_DATA, v);
 862 }
 863
 864 static void rs600_debugfs(struct radeon_device *rdev)
 865 {
 866         if (r100_debugfs_rbbm_init(rdev))
 867                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 868 }
 869
 870 void rs600_set_safe_registers(struct radeon_device *rdev)
 871 {
 872         rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
 873         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
 874 }
 875
 876 static void rs600_mc_program(struct radeon_device *rdev)
 877 {
 878         struct rv515_mc_save save;
 879
 880         /* Stops all mc clients */
 881         rv515_mc_stop(rdev, &save);
 882
 883         /* Wait for mc idle */
 884         if (rs600_mc_wait_for_idle(rdev))
 885                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 886
 887         /* FIXME: What does AGP means for such chipset ? */
 888         WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
 889         WREG32_MC(R_000006_AGP_BASE, 0);
 890         WREG32_MC(R_000007_AGP_BASE_2, 0);
 891         /* Program MC */
 892         WREG32_MC(R_000004_MC_FB_LOCATION,
 893                         S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
 894                         S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
 895         WREG32(R_000134_HDP_FB_LOCATION,
 896                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 897
 898         rv515_mc_resume(rdev, &save);
 899 }
 900
 901 static int rs600_startup(struct radeon_device *rdev)
 902 {
 903         int r;
 904
 905         rs600_mc_program(rdev);
 906         /* Resume clock */
 907         rv515_clock_startup(rdev);
 908         /* Initialize GPU configuration (# pipes, ...) */
 909         rs600_gpu_init(rdev);
 910         /* Initialize GART (initialize after TTM so we can allocate
 911          * memory through TTM but finalize after TTM) */
 912         r = rs600_gart_enable(rdev);
 913         if (r)
 914                 return r;
 915
 916         /* allocate wb buffer */
 917         r = radeon_wb_init(rdev);
 918         if (r)
 919                 return r;
 920
 921         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
 922         if (r) {
 923                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
 924                 return r;
 925         }
 926
 927         /* Enable IRQ */
 928         if (!rdev->irq.installed) {
 929                 r = radeon_irq_kms_init(rdev);
 930                 if (r)
 931                         return r;
 932         }
 933
 934         rs600_irq_set(rdev);
 935         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 936         /* 1M ring buffer */
 937         r = r100_cp_init(rdev, 1024 * 1024);
 938         if (r) {
 939                 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 940                 return r;
 941         }
 942
 943         r = radeon_ib_pool_init(rdev);
 944         if (r) {
 945                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
 946                 return r;
 947         }
 948
 949         r = r600_audio_init(rdev);
 950         if (r) {
 951                 dev_err(rdev->dev, "failed initializing audio\n");
 952                 return r;
 953         }
 954
 955         return 0;
 956 }
 957
 958 int rs600_resume(struct radeon_device *rdev)
 959 {
 960         int r;
 961
 962         /* Make sur GART are not working */
 963         rs600_gart_disable(rdev);
 964         /* Resume clock before doing reset */
 965         rv515_clock_startup(rdev);
 966         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 967         if (radeon_asic_reset(rdev)) {
 968                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 969                         RREG32(R_000E40_RBBM_STATUS),
 970                         RREG32(R_0007C0_CP_STAT));
 971         }
 972         /* post */
 973         atom_asic_init(rdev->mode_info.atom_context);
 974         /* Resume clock after posting */
 975         rv515_clock_startup(rdev);
 976         /* Initialize surface registers */
 977         radeon_surface_init(rdev);
 978
 979         rdev->accel_working = true;
 980         r = rs600_startup(rdev);
 981         if (r) {
 982                 rdev->accel_working = false;
 983         }
 984         return r;
 985 }
 986
 987 int rs600_suspend(struct radeon_device *rdev)
 988 {
 989         r600_audio_fini(rdev);
 990         r100_cp_disable(rdev);
 991         radeon_wb_disable(rdev);
 992         rs600_irq_disable(rdev);
 993         rs600_gart_disable(rdev);
 994         return 0;
 995 }
 996
 997 void rs600_fini(struct radeon_device *rdev)
 998 {
 999         r600_audio_fini(rdev);
1000         r100_cp_fini(rdev);
1001         radeon_wb_fini(rdev);
1002         radeon_ib_pool_fini(rdev);
1003         radeon_gem_fini(rdev);
1004         rs600_gart_fini(rdev);
1005         radeon_irq_kms_fini(rdev);
1006         radeon_fence_driver_fini(rdev);
1007         radeon_bo_fini(rdev);
1008         radeon_atombios_fini(rdev);
1009         kfree(rdev->bios);
1010         rdev->bios = NULL;
1011 }
1012
1013 int rs600_init(struct radeon_device *rdev)
1014 {
1015         int r;
1016
1017         /* Disable VGA */
1018         rv515_vga_render_disable(rdev);
1019         /* Initialize scratch registers */
1020         radeon_scratch_init(rdev);
1021         /* Initialize surface registers */
1022         radeon_surface_init(rdev);
1023         /* restore some register to sane defaults */
1024         r100_restore_sanity(rdev);
1025         /* BIOS */
1026         if (!radeon_get_bios(rdev)) {
1027                 if (ASIC_IS_AVIVO(rdev))
1028                         return -EINVAL;
1029         }
1030         if (rdev->is_atom_bios) {
1031                 r = radeon_atombios_init(rdev);
1032                 if (r)
1033                         return r;
1034         } else {
1035                 dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
1036                 return -EINVAL;
1037         }
1038         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
1039         if (radeon_asic_reset(rdev)) {
1040                 dev_warn(rdev->dev,
1041                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1042                         RREG32(R_000E40_RBBM_STATUS),
1043                         RREG32(R_0007C0_CP_STAT));
1044         }
1045         /* check if cards are posted or not */
1046         if (radeon_boot_test_post_card(rdev) == false)
1047                 return -EINVAL;
1048
1049         /* Initialize clocks */
1050         radeon_get_clock_info(rdev->ddev);
1051         /* initialize memory controller */
1052         rs600_mc_init(rdev);
1053         rs600_debugfs(rdev);
1054         /* Fence driver */
1055         r = radeon_fence_driver_init(rdev);
1056         if (r)
1057                 return r;
1058         /* Memory manager */
1059         r = radeon_bo_init(rdev);
1060         if (r)
1061                 return r;
1062         r = rs600_gart_init(rdev);
1063         if (r)
1064                 return r;
1065         rs600_set_safe_registers(rdev);
1066
1067         rdev->accel_working = true;
1068         r = rs600_startup(rdev);
1069         if (r) {
1070                 /* Somethings want wront with the accel init stop accel */
1071                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
1072                 r100_cp_fini(rdev);
1073                 radeon_wb_fini(rdev);
1074                 radeon_ib_pool_fini(rdev);
1075                 rs600_gart_fini(rdev);
1076                 radeon_irq_kms_fini(rdev);
1077                 rdev->accel_working = false;
1078         }
1079         return 0;
1080 }