drivers/gpu/drm/radeon/r600.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 #include <linux/slab.h>
  29 #include <linux/seq_file.h>
  30 #include <linux/firmware.h>
  31 #include <linux/module.h>
  32 #include <drm/drmP.h>
  33 #include <drm/radeon_drm.h>
  34 #include "radeon.h"
  35 #include "radeon_asic.h"
  36 #include "radeon_mode.h"
  37 #include "r600d.h"
  38 #include "atom.h"
  39 #include "avivod.h"
  40 #include "radeon_ucode.h"
  41
  42 /* Firmware Names */
  43 MODULE_FIRMWARE("radeon/R600_pfp.bin");
  44 MODULE_FIRMWARE("radeon/R600_me.bin");
  45 MODULE_FIRMWARE("radeon/RV610_pfp.bin");
  46 MODULE_FIRMWARE("radeon/RV610_me.bin");
  47 MODULE_FIRMWARE("radeon/RV630_pfp.bin");
  48 MODULE_FIRMWARE("radeon/RV630_me.bin");
  49 MODULE_FIRMWARE("radeon/RV620_pfp.bin");
  50 MODULE_FIRMWARE("radeon/RV620_me.bin");
  51 MODULE_FIRMWARE("radeon/RV635_pfp.bin");
  52 MODULE_FIRMWARE("radeon/RV635_me.bin");
  53 MODULE_FIRMWARE("radeon/RV670_pfp.bin");
  54 MODULE_FIRMWARE("radeon/RV670_me.bin");
  55 MODULE_FIRMWARE("radeon/RS780_pfp.bin");
  56 MODULE_FIRMWARE("radeon/RS780_me.bin");
  57 MODULE_FIRMWARE("radeon/RV770_pfp.bin");
  58 MODULE_FIRMWARE("radeon/RV770_me.bin");
  59 MODULE_FIRMWARE("radeon/RV770_smc.bin");
  60 MODULE_FIRMWARE("radeon/RV730_pfp.bin");
  61 MODULE_FIRMWARE("radeon/RV730_me.bin");
  62 MODULE_FIRMWARE("radeon/RV730_smc.bin");
  63 MODULE_FIRMWARE("radeon/RV740_smc.bin");
  64 MODULE_FIRMWARE("radeon/RV710_pfp.bin");
  65 MODULE_FIRMWARE("radeon/RV710_me.bin");
  66 MODULE_FIRMWARE("radeon/RV710_smc.bin");
  67 MODULE_FIRMWARE("radeon/R600_rlc.bin");
  68 MODULE_FIRMWARE("radeon/R700_rlc.bin");
  69 MODULE_FIRMWARE("radeon/CEDAR_pfp.bin");
  70 MODULE_FIRMWARE("radeon/CEDAR_me.bin");
  71 MODULE_FIRMWARE("radeon/CEDAR_rlc.bin");
  72 MODULE_FIRMWARE("radeon/CEDAR_smc.bin");
  73 MODULE_FIRMWARE("radeon/REDWOOD_pfp.bin");
  74 MODULE_FIRMWARE("radeon/REDWOOD_me.bin");
  75 MODULE_FIRMWARE("radeon/REDWOOD_rlc.bin");
  76 MODULE_FIRMWARE("radeon/REDWOOD_smc.bin");
  77 MODULE_FIRMWARE("radeon/JUNIPER_pfp.bin");
  78 MODULE_FIRMWARE("radeon/JUNIPER_me.bin");
  79 MODULE_FIRMWARE("radeon/JUNIPER_rlc.bin");
  80 MODULE_FIRMWARE("radeon/JUNIPER_smc.bin");
  81 MODULE_FIRMWARE("radeon/CYPRESS_pfp.bin");
  82 MODULE_FIRMWARE("radeon/CYPRESS_me.bin");
  83 MODULE_FIRMWARE("radeon/CYPRESS_rlc.bin");
  84 MODULE_FIRMWARE("radeon/CYPRESS_smc.bin");
  85 MODULE_FIRMWARE("radeon/PALM_pfp.bin");
  86 MODULE_FIRMWARE("radeon/PALM_me.bin");
  87 MODULE_FIRMWARE("radeon/SUMO_rlc.bin");
  88 MODULE_FIRMWARE("radeon/SUMO_pfp.bin");
  89 MODULE_FIRMWARE("radeon/SUMO_me.bin");
  90 MODULE_FIRMWARE("radeon/SUMO2_pfp.bin");
  91 MODULE_FIRMWARE("radeon/SUMO2_me.bin");
  92
  93 static const u32 crtc_offsets[2] =
  94 {
  95         0,
  96         AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
  97 };
  98
  99 int r600_debugfs_mc_info_init(struct radeon_device *rdev);
 100
 101 /* r600,rv610,rv630,rv620,rv635,rv670 */
 102 int r600_mc_wait_for_idle(struct radeon_device *rdev);
 103 static void r600_gpu_init(struct radeon_device *rdev);
 104 void r600_fini(struct radeon_device *rdev);
 105 void r600_irq_disable(struct radeon_device *rdev);
 106 static void r600_pcie_gen2_enable(struct radeon_device *rdev);
 107 extern int evergreen_rlc_resume(struct radeon_device *rdev);
 108
 109 /**
 110  * r600_get_xclk - get the xclk
 111  *
 112  * @rdev: radeon_device pointer
 113  *
 114  * Returns the reference clock used by the gfx engine
 115  * (r6xx, IGPs, APUs).
 116  */
 117 u32 r600_get_xclk(struct radeon_device *rdev)
 118 {
 119         return rdev->clock.spll.reference_freq;
 120 }
 121
 122 int r600_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
 123 {
 124         return 0;
 125 }
 126
 127 /* get temperature in millidegrees */
 128 int rv6xx_get_temp(struct radeon_device *rdev)
 129 {
 130         u32 temp = (RREG32(CG_THERMAL_STATUS) & ASIC_T_MASK) >>
 131                 ASIC_T_SHIFT;
 132         int actual_temp = temp & 0xff;
 133
 134         if (temp & 0x100)
 135                 actual_temp -= 256;
 136
 137         return actual_temp * 1000;
 138 }
 139
 140 void r600_pm_get_dynpm_state(struct radeon_device *rdev)
 141 {
 142         int i;
 143
 144         rdev->pm.dynpm_can_upclock = true;
 145         rdev->pm.dynpm_can_downclock = true;
 146
 147         /* power state array is low to high, default is first */
 148         if ((rdev->flags & RADEON_IS_IGP) || (rdev->family == CHIP_R600)) {
 149                 int min_power_state_index = 0;
 150
 151                 if (rdev->pm.num_power_states > 2)
 152                         min_power_state_index = 1;
 153
 154                 switch (rdev->pm.dynpm_planned_action) {
 155                 case DYNPM_ACTION_MINIMUM:
 156                         rdev->pm.requested_power_state_index = min_power_state_index;
 157                         rdev->pm.requested_clock_mode_index = 0;
 158                         rdev->pm.dynpm_can_downclock = false;
 159                         break;
 160                 case DYNPM_ACTION_DOWNCLOCK:
 161                         if (rdev->pm.current_power_state_index == min_power_state_index) {
 162                                 rdev->pm.requested_power_state_index = rdev->pm.current_power_state_index;
 163                                 rdev->pm.dynpm_can_downclock = false;
 164                         } else {
 165                                 if (rdev->pm.active_crtc_count > 1) {
 166                                         for (i = 0; i < rdev->pm.num_power_states; i++) {
 167                                                 if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
 168                                                         continue;
 169                                                 else if (i >= rdev->pm.current_power_state_index) {
 170                                                         rdev->pm.requested_power_state_index =
 171                                                                 rdev->pm.current_power_state_index;
 172                                                         break;
 173                                                 } else {
 174                                                         rdev->pm.requested_power_state_index = i;
 175                                                         break;
 176                                                 }
 177                                         }
 178                                 } else {
 179                                         if (rdev->pm.current_power_state_index == 0)
 180                                                 rdev->pm.requested_power_state_index =
 181                                                         rdev->pm.num_power_states - 1;
 182                                         else
 183                                                 rdev->pm.requested_power_state_index =
 184                                                         rdev->pm.current_power_state_index - 1;
 185                                 }
 186                         }
 187                         rdev->pm.requested_clock_mode_index = 0;
 188                         /* don't use the power state if crtcs are active and no display flag is set */
 189                         if ((rdev->pm.active_crtc_count > 0) &&
 190                             (rdev->pm.power_state[rdev->pm.requested_power_state_index].
 191                              clock_info[rdev->pm.requested_clock_mode_index].flags &
 192                              RADEON_PM_MODE_NO_DISPLAY)) {
 193                                 rdev->pm.requested_power_state_index++;
 194                         }
 195                         break;
 196                 case DYNPM_ACTION_UPCLOCK:
 197                         if (rdev->pm.current_power_state_index == (rdev->pm.num_power_states - 1)) {
 198                                 rdev->pm.requested_power_state_index = rdev->pm.current_power_state_index;
 199                                 rdev->pm.dynpm_can_upclock = false;
 200                         } else {
 201                                 if (rdev->pm.active_crtc_count > 1) {
 202                                         for (i = (rdev->pm.num_power_states - 1); i >= 0; i--) {
 203                                                 if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
 204                                                         continue;
 205                                                 else if (i <= rdev->pm.current_power_state_index) {
 206                                                         rdev->pm.requested_power_state_index =
 207                                                                 rdev->pm.current_power_state_index;
 208                                                         break;
 209                                                 } else {
 210                                                         rdev->pm.requested_power_state_index = i;
 211                                                         break;
 212                                                 }
 213                                         }
 214                                 } else
 215                                         rdev->pm.requested_power_state_index =
 216                                                 rdev->pm.current_power_state_index + 1;
 217                         }
 218                         rdev->pm.requested_clock_mode_index = 0;
 219                         break;
 220                 case DYNPM_ACTION_DEFAULT:
 221                         rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
 222                         rdev->pm.requested_clock_mode_index = 0;
 223                         rdev->pm.dynpm_can_upclock = false;
 224                         break;
 225                 case DYNPM_ACTION_NONE:
 226                 default:
 227                         DRM_ERROR("Requested mode for not defined action\n");
 228                         return;
 229                 }
 230         } else {
 231                 /* XXX select a power state based on AC/DC, single/dualhead, etc. */
 232                 /* for now just select the first power state and switch between clock modes */
 233                 /* power state array is low to high, default is first (0) */
 234                 if (rdev->pm.active_crtc_count > 1) {
 235                         rdev->pm.requested_power_state_index = -1;
 236                         /* start at 1 as we don't want the default mode */
 237                         for (i = 1; i < rdev->pm.num_power_states; i++) {
 238                                 if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
 239                                         continue;
 240                                 else if ((rdev->pm.power_state[i].type == POWER_STATE_TYPE_PERFORMANCE) ||
 241                                          (rdev->pm.power_state[i].type == POWER_STATE_TYPE_BATTERY)) {
 242                                         rdev->pm.requested_power_state_index = i;
 243                                         break;
 244                                 }
 245                         }
 246                         /* if nothing selected, grab the default state. */
 247                         if (rdev->pm.requested_power_state_index == -1)
 248                                 rdev->pm.requested_power_state_index = 0;
 249                 } else
 250                         rdev->pm.requested_power_state_index = 1;
 251
 252                 switch (rdev->pm.dynpm_planned_action) {
 253                 case DYNPM_ACTION_MINIMUM:
 254                         rdev->pm.requested_clock_mode_index = 0;
 255                         rdev->pm.dynpm_can_downclock = false;
 256                         break;
 257                 case DYNPM_ACTION_DOWNCLOCK:
 258                         if (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index) {
 259                                 if (rdev->pm.current_clock_mode_index == 0) {
 260                                         rdev->pm.requested_clock_mode_index = 0;
 261                                         rdev->pm.dynpm_can_downclock = false;
 262                                 } else
 263                                         rdev->pm.requested_clock_mode_index =
 264                                                 rdev->pm.current_clock_mode_index - 1;
 265                         } else {
 266                                 rdev->pm.requested_clock_mode_index = 0;
 267                                 rdev->pm.dynpm_can_downclock = false;
 268                         }
 269                         /* don't use the power state if crtcs are active and no display flag is set */
 270                         if ((rdev->pm.active_crtc_count > 0) &&
 271                             (rdev->pm.power_state[rdev->pm.requested_power_state_index].
 272                              clock_info[rdev->pm.requested_clock_mode_index].flags &
 273                              RADEON_PM_MODE_NO_DISPLAY)) {
 274                                 rdev->pm.requested_clock_mode_index++;
 275                         }
 276                         break;
 277                 case DYNPM_ACTION_UPCLOCK:
 278                         if (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index) {
 279                                 if (rdev->pm.current_clock_mode_index ==
 280                                     (rdev->pm.power_state[rdev->pm.requested_power_state_index].num_clock_modes - 1)) {
 281                                         rdev->pm.requested_clock_mode_index = rdev->pm.current_clock_mode_index;
 282                                         rdev->pm.dynpm_can_upclock = false;
 283                                 } else
 284                                         rdev->pm.requested_clock_mode_index =
 285                                                 rdev->pm.current_clock_mode_index + 1;
 286                         } else {
 287                                 rdev->pm.requested_clock_mode_index =
 288                                         rdev->pm.power_state[rdev->pm.requested_power_state_index].num_clock_modes - 1;
 289                                 rdev->pm.dynpm_can_upclock = false;
 290                         }
 291                         break;
 292                 case DYNPM_ACTION_DEFAULT:
 293                         rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
 294                         rdev->pm.requested_clock_mode_index = 0;
 295                         rdev->pm.dynpm_can_upclock = false;
 296                         break;
 297                 case DYNPM_ACTION_NONE:
 298                 default:
 299                         DRM_ERROR("Requested mode for not defined action\n");
 300                         return;
 301                 }
 302         }
 303
 304         DRM_DEBUG_DRIVER("Requested: e: %d m: %d p: %d\n",
 305                   rdev->pm.power_state[rdev->pm.requested_power_state_index].
 306                   clock_info[rdev->pm.requested_clock_mode_index].sclk,
 307                   rdev->pm.power_state[rdev->pm.requested_power_state_index].
 308                   clock_info[rdev->pm.requested_clock_mode_index].mclk,
 309                   rdev->pm.power_state[rdev->pm.requested_power_state_index].
 310                   pcie_lanes);
 311 }
 312
 313 void rs780_pm_init_profile(struct radeon_device *rdev)
 314 {
 315         if (rdev->pm.num_power_states == 2) {
 316                 /* default */
 317                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 318                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 319                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 320                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
 321                 /* low sh */
 322                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 0;
 323                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0;
 324                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 325                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 326                 /* mid sh */
 327                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0;
 328                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 0;
 329                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 330                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
 331                 /* high sh */
 332                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0;
 333                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1;
 334                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 335                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
 336                 /* low mh */
 337                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 0;
 338                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0;
 339                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 340                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 341                 /* mid mh */
 342                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0;
 343                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0;
 344                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 345                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
 346                 /* high mh */
 347                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0;
 348                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 1;
 349                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 350                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
 351         } else if (rdev->pm.num_power_states == 3) {
 352                 /* default */
 353                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 354                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 355                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 356                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
 357                 /* low sh */
 358                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 1;
 359                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1;
 360                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 361                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 362                 /* mid sh */
 363                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1;
 364                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1;
 365                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 366                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
 367                 /* high sh */
 368                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1;
 369                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 2;
 370                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 371                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
 372                 /* low mh */
 373                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 1;
 374                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 1;
 375                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 376                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 377                 /* mid mh */
 378                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 1;
 379                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 1;
 380                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 381                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
 382                 /* high mh */
 383                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 1;
 384                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2;
 385                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 386                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
 387         } else {
 388                 /* default */
 389                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 390                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 391                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 392                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
 393                 /* low sh */
 394                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 2;
 395                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 2;
 396                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 397                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 398                 /* mid sh */
 399                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 2;
 400                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 2;
 401                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 402                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
 403                 /* high sh */
 404                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 2;
 405                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 3;
 406                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 407                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
 408                 /* low mh */
 409                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 2;
 410                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0;
 411                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 412                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 413                 /* mid mh */
 414                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2;
 415                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0;
 416                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 417                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
 418                 /* high mh */
 419                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2;
 420                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 3;
 421                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 422                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
 423         }
 424 }
 425
 426 void r600_pm_init_profile(struct radeon_device *rdev)
 427 {
 428         int idx;
 429
 430         if (rdev->family == CHIP_R600) {
 431                 /* XXX */
 432                 /* default */
 433                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 434                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 435                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 436                 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
 437                 /* low sh */
 438                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 439                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 440                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 441                 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 442                 /* mid sh */
 443                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 444                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 445                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 446                 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
 447                 /* high sh */
 448                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 449                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 450                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 451                 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
 452                 /* low mh */
 453                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 454                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 455                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 456                 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 457                 /* mid mh */
 458                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 459                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 460                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 461                 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
 462                 /* high mh */
 463                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 464                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 465                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 466                 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
 467         } else {
 468                 if (rdev->pm.num_power_states < 4) {
 469                         /* default */
 470                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 471                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 472                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 473                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 2;
 474                         /* low sh */
 475                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 1;
 476                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1;
 477                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 478                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 479                         /* mid sh */
 480                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1;
 481                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1;
 482                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 483                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1;
 484                         /* high sh */
 485                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1;
 486                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1;
 487                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 488                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 2;
 489                         /* low mh */
 490                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 2;
 491                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 2;
 492                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 493                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 494                         /* low mh */
 495                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2;
 496                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 2;
 497                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 498                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1;
 499                         /* high mh */
 500                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2;
 501                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2;
 502                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 503                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 2;
 504                 } else {
 505                         /* default */
 506                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
 507                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
 508                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
 509                         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 2;
 510                         /* low sh */
 511                         if (rdev->flags & RADEON_IS_MOBILITY)
 512                                 idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 0);
 513                         else
 514                                 idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0);
 515                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = idx;
 516                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = idx;
 517                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
 518                         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
 519                         /* mid sh */
 520                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = idx;
 521                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = idx;
 522                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
 523                         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1;
 524                         /* high sh */
 525                         idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0);
 526                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = idx;
 527                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = idx;
 528                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
 529                         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 2;
 530                         /* low mh */
 531                         if (rdev->flags & RADEON_IS_MOBILITY)
 532                                 idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 1);
 533                         else
 534                                 idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1);
 535                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = idx;
 536                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = idx;
 537                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
 538                         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
 539                         /* mid mh */
 540                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = idx;
 541                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = idx;
 542                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
 543                         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1;
 544                         /* high mh */
 545                         idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1);
 546                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = idx;
 547                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = idx;
 548                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
 549                         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 2;
 550                 }
 551         }
 552 }
 553
 554 void r600_pm_misc(struct radeon_device *rdev)
 555 {
 556         int req_ps_idx = rdev->pm.requested_power_state_index;
 557         int req_cm_idx = rdev->pm.requested_clock_mode_index;
 558         struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
 559         struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
 560
 561         if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
 562                 /* 0xff01 is a flag rather then an actual voltage */
 563                 if (voltage->voltage == 0xff01)
 564                         return;
 565                 if (voltage->voltage != rdev->pm.current_vddc) {
 566                         radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC);
 567                         rdev->pm.current_vddc = voltage->voltage;
 568                         DRM_DEBUG_DRIVER("Setting: v: %d\n", voltage->voltage);
 569                 }
 570         }
 571 }
 572
 573 bool r600_gui_idle(struct radeon_device *rdev)
 574 {
 575         if (RREG32(GRBM_STATUS) & GUI_ACTIVE)
 576                 return false;
 577         else
 578                 return true;
 579 }
 580
 581 /* hpd for digital panel detect/disconnect */
 582 bool r600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 583 {
 584         bool connected = false;
 585
 586         if (ASIC_IS_DCE3(rdev)) {
 587                 switch (hpd) {
 588                 case RADEON_HPD_1:
 589                         if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
 590                                 connected = true;
 591                         break;
 592                 case RADEON_HPD_2:
 593                         if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
 594                                 connected = true;
 595                         break;
 596                 case RADEON_HPD_3:
 597                         if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
 598                                 connected = true;
 599                         break;
 600                 case RADEON_HPD_4:
 601                         if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
 602                                 connected = true;
 603                         break;
 604                         /* DCE 3.2 */
 605                 case RADEON_HPD_5:
 606                         if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
 607                                 connected = true;
 608                         break;
 609                 case RADEON_HPD_6:
 610                         if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
 611                                 connected = true;
 612                         break;
 613                 default:
 614                         break;
 615                 }
 616         } else {
 617                 switch (hpd) {
 618                 case RADEON_HPD_1:
 619                         if (RREG32(DC_HOT_PLUG_DETECT1_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 620                                 connected = true;
 621                         break;
 622                 case RADEON_HPD_2:
 623                         if (RREG32(DC_HOT_PLUG_DETECT2_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 624                                 connected = true;
 625                         break;
 626                 case RADEON_HPD_3:
 627                         if (RREG32(DC_HOT_PLUG_DETECT3_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 628                                 connected = true;
 629                         break;
 630                 default:
 631                         break;
 632                 }
 633         }
 634         return connected;
 635 }
 636
 637 void r600_hpd_set_polarity(struct radeon_device *rdev,
 638                            enum radeon_hpd_id hpd)
 639 {
 640         u32 tmp;
 641         bool connected = r600_hpd_sense(rdev, hpd);
 642
 643         if (ASIC_IS_DCE3(rdev)) {
 644                 switch (hpd) {
 645                 case RADEON_HPD_1:
 646                         tmp = RREG32(DC_HPD1_INT_CONTROL);
 647                         if (connected)
 648                                 tmp &= ~DC_HPDx_INT_POLARITY;
 649                         else
 650                                 tmp |= DC_HPDx_INT_POLARITY;
 651                         WREG32(DC_HPD1_INT_CONTROL, tmp);
 652                         break;
 653                 case RADEON_HPD_2:
 654                         tmp = RREG32(DC_HPD2_INT_CONTROL);
 655                         if (connected)
 656                                 tmp &= ~DC_HPDx_INT_POLARITY;
 657                         else
 658                                 tmp |= DC_HPDx_INT_POLARITY;
 659                         WREG32(DC_HPD2_INT_CONTROL, tmp);
 660                         break;
 661                 case RADEON_HPD_3:
 662                         tmp = RREG32(DC_HPD3_INT_CONTROL);
 663                         if (connected)
 664                                 tmp &= ~DC_HPDx_INT_POLARITY;
 665                         else
 666                                 tmp |= DC_HPDx_INT_POLARITY;
 667                         WREG32(DC_HPD3_INT_CONTROL, tmp);
 668                         break;
 669                 case RADEON_HPD_4:
 670                         tmp = RREG32(DC_HPD4_INT_CONTROL);
 671                         if (connected)
 672                                 tmp &= ~DC_HPDx_INT_POLARITY;
 673                         else
 674                                 tmp |= DC_HPDx_INT_POLARITY;
 675                         WREG32(DC_HPD4_INT_CONTROL, tmp);
 676                         break;
 677                 case RADEON_HPD_5:
 678                         tmp = RREG32(DC_HPD5_INT_CONTROL);
 679                         if (connected)
 680                                 tmp &= ~DC_HPDx_INT_POLARITY;
 681                         else
 682                                 tmp |= DC_HPDx_INT_POLARITY;
 683                         WREG32(DC_HPD5_INT_CONTROL, tmp);
 684                         break;
 685                         /* DCE 3.2 */
 686                 case RADEON_HPD_6:
 687                         tmp = RREG32(DC_HPD6_INT_CONTROL);
 688                         if (connected)
 689                                 tmp &= ~DC_HPDx_INT_POLARITY;
 690                         else
 691                                 tmp |= DC_HPDx_INT_POLARITY;
 692                         WREG32(DC_HPD6_INT_CONTROL, tmp);
 693                         break;
 694                 default:
 695                         break;
 696                 }
 697         } else {
 698                 switch (hpd) {
 699                 case RADEON_HPD_1:
 700                         tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
 701                         if (connected)
 702                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 703                         else
 704                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 705                         WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 706                         break;
 707                 case RADEON_HPD_2:
 708                         tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
 709                         if (connected)
 710                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 711                         else
 712                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 713                         WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 714                         break;
 715                 case RADEON_HPD_3:
 716                         tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
 717                         if (connected)
 718                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 719                         else
 720                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 721                         WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
 722                         break;
 723                 default:
 724                         break;
 725                 }
 726         }
 727 }
 728
 729 void r600_hpd_init(struct radeon_device *rdev)
 730 {
 731         struct drm_device *dev = rdev->ddev;
 732         struct drm_connector *connector;
 733         unsigned enable = 0;
 734
 735         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 736                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 737
 738                 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
 739                     connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
 740                         /* don't try to enable hpd on eDP or LVDS avoid breaking the
 741                          * aux dp channel on imac and help (but not completely fix)
 742                          * https://bugzilla.redhat.com/show_bug.cgi?id=726143
 743                          */
 744                         continue;
 745                 }
 746                 if (ASIC_IS_DCE3(rdev)) {
 747                         u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) | DC_HPDx_RX_INT_TIMER(0xfa);
 748                         if (ASIC_IS_DCE32(rdev))
 749                                 tmp |= DC_HPDx_EN;
 750
 751                         switch (radeon_connector->hpd.hpd) {
 752                         case RADEON_HPD_1:
 753                                 WREG32(DC_HPD1_CONTROL, tmp);
 754                                 break;
 755                         case RADEON_HPD_2:
 756                                 WREG32(DC_HPD2_CONTROL, tmp);
 757                                 break;
 758                         case RADEON_HPD_3:
 759                                 WREG32(DC_HPD3_CONTROL, tmp);
 760                                 break;
 761                         case RADEON_HPD_4:
 762                                 WREG32(DC_HPD4_CONTROL, tmp);
 763                                 break;
 764                                 /* DCE 3.2 */
 765                         case RADEON_HPD_5:
 766                                 WREG32(DC_HPD5_CONTROL, tmp);
 767                                 break;
 768                         case RADEON_HPD_6:
 769                                 WREG32(DC_HPD6_CONTROL, tmp);
 770                                 break;
 771                         default:
 772                                 break;
 773                         }
 774                 } else {
 775                         switch (radeon_connector->hpd.hpd) {
 776                         case RADEON_HPD_1:
 777                                 WREG32(DC_HOT_PLUG_DETECT1_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 778                                 break;
 779                         case RADEON_HPD_2:
 780                                 WREG32(DC_HOT_PLUG_DETECT2_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 781                                 break;
 782                         case RADEON_HPD_3:
 783                                 WREG32(DC_HOT_PLUG_DETECT3_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 784                                 break;
 785                         default:
 786                                 break;
 787                         }
 788                 }
 789                 enable |= 1 << radeon_connector->hpd.hpd;
 790                 radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
 791         }
 792         radeon_irq_kms_enable_hpd(rdev, enable);
 793 }
 794
 795 void r600_hpd_fini(struct radeon_device *rdev)
 796 {
 797         struct drm_device *dev = rdev->ddev;
 798         struct drm_connector *connector;
 799         unsigned disable = 0;
 800
 801         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 802                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 803                 if (ASIC_IS_DCE3(rdev)) {
 804                         switch (radeon_connector->hpd.hpd) {
 805                         case RADEON_HPD_1:
 806                                 WREG32(DC_HPD1_CONTROL, 0);
 807                                 break;
 808                         case RADEON_HPD_2:
 809                                 WREG32(DC_HPD2_CONTROL, 0);
 810                                 break;
 811                         case RADEON_HPD_3:
 812                                 WREG32(DC_HPD3_CONTROL, 0);
 813                                 break;
 814                         case RADEON_HPD_4:
 815                                 WREG32(DC_HPD4_CONTROL, 0);
 816                                 break;
 817                                 /* DCE 3.2 */
 818                         case RADEON_HPD_5:
 819                                 WREG32(DC_HPD5_CONTROL, 0);
 820                                 break;
 821                         case RADEON_HPD_6:
 822                                 WREG32(DC_HPD6_CONTROL, 0);
 823                                 break;
 824                         default:
 825                                 break;
 826                         }
 827                 } else {
 828                         switch (radeon_connector->hpd.hpd) {
 829                         case RADEON_HPD_1:
 830                                 WREG32(DC_HOT_PLUG_DETECT1_CONTROL, 0);
 831                                 break;
 832                         case RADEON_HPD_2:
 833                                 WREG32(DC_HOT_PLUG_DETECT2_CONTROL, 0);
 834                                 break;
 835                         case RADEON_HPD_3:
 836                                 WREG32(DC_HOT_PLUG_DETECT3_CONTROL, 0);
 837                                 break;
 838                         default:
 839                                 break;
 840                         }
 841                 }
 842                 disable |= 1 << radeon_connector->hpd.hpd;
 843         }
 844         radeon_irq_kms_disable_hpd(rdev, disable);
 845 }
 846
 847 /*
 848  * R600 PCIE GART
 849  */
 850 void r600_pcie_gart_tlb_flush(struct radeon_device *rdev)
 851 {
 852         unsigned i;
 853         u32 tmp;
 854
 855         /* flush hdp cache so updates hit vram */
 856         if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) &&
 857             !(rdev->flags & RADEON_IS_AGP)) {
 858                 void __iomem *ptr = (void *)rdev->gart.ptr;
 859                 u32 tmp;
 860
 861                 /* r7xx hw bug.  write to HDP_DEBUG1 followed by fb read
 862                  * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL
 863                  * This seems to cause problems on some AGP cards. Just use the old
 864                  * method for them.
 865                  */
 866                 WREG32(HDP_DEBUG1, 0);
 867                 tmp = readl((void __iomem *)ptr);
 868         } else
 869                 WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
 870
 871         WREG32(VM_CONTEXT0_INVALIDATION_LOW_ADDR, rdev->mc.gtt_start >> 12);
 872         WREG32(VM_CONTEXT0_INVALIDATION_HIGH_ADDR, (rdev->mc.gtt_end - 1) >> 12);
 873         WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
 874         for (i = 0; i < rdev->usec_timeout; i++) {
 875                 /* read MC_STATUS */
 876                 tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
 877                 tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
 878                 if (tmp == 2) {
 879                         printk(KERN_WARNING "[drm] r600 flush TLB failed\n");
 880                         return;
 881                 }
 882                 if (tmp) {
 883                         return;
 884                 }
 885                 udelay(1);
 886         }
 887 }
 888
 889 int r600_pcie_gart_init(struct radeon_device *rdev)
 890 {
 891         int r;
 892
 893         if (rdev->gart.robj) {
 894                 WARN(1, "R600 PCIE GART already initialized\n");
 895                 return 0;
 896         }
 897         /* Initialize common gart structure */
 898         r = radeon_gart_init(rdev);
 899         if (r)
 900                 return r;
 901         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 902         return radeon_gart_table_vram_alloc(rdev);
 903 }
 904
 905 static int r600_pcie_gart_enable(struct radeon_device *rdev)
 906 {
 907         u32 tmp;
 908         int r, i;
 909
 910         if (rdev->gart.robj == NULL) {
 911                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 912                 return -EINVAL;
 913         }
 914         r = radeon_gart_table_vram_pin(rdev);
 915         if (r)
 916                 return r;
 917         radeon_gart_restore(rdev);
 918
 919         /* Setup L2 cache */
 920         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 921                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 922                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 923         WREG32(VM_L2_CNTL2, 0);
 924         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
 925         /* Setup TLB control */
 926         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 927                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 928                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
 929                 ENABLE_WAIT_L2_QUERY;
 930         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
 931         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
 932         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
 933         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 934         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
 935         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
 936         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
 937         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
 938         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
 939         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
 940         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
 941         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
 942         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 943         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 944         WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
 945         WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
 946         WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
 947         WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 948                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 949         WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 950                         (u32)(rdev->dummy_page.addr >> 12));
 951         for (i = 1; i < 7; i++)
 952                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 953
 954         r600_pcie_gart_tlb_flush(rdev);
 955         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 956                  (unsigned)(rdev->mc.gtt_size >> 20),
 957                  (unsigned long long)rdev->gart.table_addr);
 958         rdev->gart.ready = true;
 959         return 0;
 960 }
 961
 962 static void r600_pcie_gart_disable(struct radeon_device *rdev)
 963 {
 964         u32 tmp;
 965         int i;
 966
 967         /* Disable all tables */
 968         for (i = 0; i < 7; i++)
 969                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 970
 971         /* Disable L2 cache */
 972         WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
 973                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 974         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
 975         /* Setup L1 TLB control */
 976         tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
 977                 ENABLE_WAIT_L2_QUERY;
 978         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
 979         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
 980         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
 981         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
 982         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
 983         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
 984         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
 985         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
 986         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp);
 987         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp);
 988         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
 989         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
 990         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp);
 991         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 992         radeon_gart_table_vram_unpin(rdev);
 993 }
 994
 995 static void r600_pcie_gart_fini(struct radeon_device *rdev)
 996 {
 997         radeon_gart_fini(rdev);
 998         r600_pcie_gart_disable(rdev);
 999         radeon_gart_table_vram_free(rdev);
1000 }
1001
1002 static void r600_agp_enable(struct radeon_device *rdev)
1003 {
1004         u32 tmp;
1005         int i;
1006
1007         /* Setup L2 cache */
1008         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
1009                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
1010                                 EFFECTIVE_L2_QUEUE_SIZE(7));
1011         WREG32(VM_L2_CNTL2, 0);
1012         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
1013         /* Setup TLB control */
1014         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
1015                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
1016                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
1017                 ENABLE_WAIT_L2_QUERY;
1018         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
1019         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
1020         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
1021         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
1022         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
1023         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
1024         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
1025         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
1026         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
1027         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
1028         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
1029         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
1030         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1031         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1032         for (i = 0; i < 7; i++)
1033                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
1034 }
1035
1036 int r600_mc_wait_for_idle(struct radeon_device *rdev)
1037 {
1038         unsigned i;
1039         u32 tmp;
1040
1041         for (i = 0; i < rdev->usec_timeout; i++) {
1042                 /* read MC_STATUS */
1043                 tmp = RREG32(R_000E50_SRBM_STATUS) & 0x3F00;
1044                 if (!tmp)
1045                         return 0;
1046                 udelay(1);
1047         }
1048         return -1;
1049 }
1050
1051 uint32_t rs780_mc_rreg(struct radeon_device *rdev, uint32_t reg)
1052 {
1053         unsigned long flags;
1054         uint32_t r;
1055
1056         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
1057         WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg));
1058         r = RREG32(R_0028FC_MC_DATA);
1059         WREG32(R_0028F8_MC_INDEX, ~C_0028F8_MC_IND_ADDR);
1060         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
1061         return r;
1062 }
1063
1064 void rs780_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
1065 {
1066         unsigned long flags;
1067
1068         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
1069         WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg) |
1070                 S_0028F8_MC_IND_WR_EN(1));
1071         WREG32(R_0028FC_MC_DATA, v);
1072         WREG32(R_0028F8_MC_INDEX, 0x7F);
1073         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
1074 }
1075
1076 static void r600_mc_program(struct radeon_device *rdev)
1077 {
1078         struct rv515_mc_save save;
1079         u32 tmp;
1080         int i, j;
1081
1082         /* Initialize HDP */
1083         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1084                 WREG32((0x2c14 + j), 0x00000000);
1085                 WREG32((0x2c18 + j), 0x00000000);
1086                 WREG32((0x2c1c + j), 0x00000000);
1087                 WREG32((0x2c20 + j), 0x00000000);
1088                 WREG32((0x2c24 + j), 0x00000000);
1089         }
1090         WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
1091
1092         rv515_mc_stop(rdev, &save);
1093         if (r600_mc_wait_for_idle(rdev)) {
1094                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1095         }
1096         /* Lockout access through VGA aperture (doesn't exist before R600) */
1097         WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
1098         /* Update configuration */
1099         if (rdev->flags & RADEON_IS_AGP) {
1100                 if (rdev->mc.vram_start < rdev->mc.gtt_start) {
1101                         /* VRAM before AGP */
1102                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1103                                 rdev->mc.vram_start >> 12);
1104                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1105                                 rdev->mc.gtt_end >> 12);
1106                 } else {
1107                         /* VRAM after AGP */
1108                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1109                                 rdev->mc.gtt_start >> 12);
1110                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1111                                 rdev->mc.vram_end >> 12);
1112                 }
1113         } else {
1114                 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start >> 12);
1115                 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end >> 12);
1116         }
1117         WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, rdev->vram_scratch.gpu_addr >> 12);
1118         tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
1119         tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
1120         WREG32(MC_VM_FB_LOCATION, tmp);
1121         WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
1122         WREG32(HDP_NONSURFACE_INFO, (2 << 7));
1123         WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
1124         if (rdev->flags & RADEON_IS_AGP) {
1125                 WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 22);
1126                 WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 22);
1127                 WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
1128         } else {
1129                 WREG32(MC_VM_AGP_BASE, 0);
1130                 WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
1131                 WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
1132         }
1133         if (r600_mc_wait_for_idle(rdev)) {
1134                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1135         }
1136         rv515_mc_resume(rdev, &save);
1137         /* we need to own VRAM, so turn off the VGA renderer here
1138          * to stop it overwriting our objects */
1139         rv515_vga_render_disable(rdev);
1140 }
1141
1142 /**
1143  * r600_vram_gtt_location - try to find VRAM & GTT location
1144  * @rdev: radeon device structure holding all necessary informations
1145  * @mc: memory controller structure holding memory informations
1146  *
1147  * Function will place try to place VRAM at same place as in CPU (PCI)
1148  * address space as some GPU seems to have issue when we reprogram at
1149  * different address space.
1150  *
1151  * If there is not enough space to fit the unvisible VRAM after the
1152  * aperture then we limit the VRAM size to the aperture.
1153  *
1154  * If we are using AGP then place VRAM adjacent to AGP aperture are we need
1155  * them to be in one from GPU point of view so that we can program GPU to
1156  * catch access outside them (weird GPU policy see ??).
1157  *
1158  * This function will never fails, worst case are limiting VRAM or GTT.
1159  *
1160  * Note: GTT start, end, size should be initialized before calling this
1161  * function on AGP platform.
1162  */
1163 static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
1164 {
1165         u64 size_bf, size_af;
1166
1167         if (mc->mc_vram_size > 0xE0000000) {
1168                 /* leave room for at least 512M GTT */
1169                 dev_warn(rdev->dev, "limiting VRAM\n");
1170                 mc->real_vram_size = 0xE0000000;
1171                 mc->mc_vram_size = 0xE0000000;
1172         }
1173         if (rdev->flags & RADEON_IS_AGP) {
1174                 size_bf = mc->gtt_start;
1175                 size_af = mc->mc_mask - mc->gtt_end;
1176                 if (size_bf > size_af) {
1177                         if (mc->mc_vram_size > size_bf) {
1178                                 dev_warn(rdev->dev, "limiting VRAM\n");
1179                                 mc->real_vram_size = size_bf;
1180                                 mc->mc_vram_size = size_bf;
1181                         }
1182                         mc->vram_start = mc->gtt_start - mc->mc_vram_size;
1183                 } else {
1184                         if (mc->mc_vram_size > size_af) {
1185                                 dev_warn(rdev->dev, "limiting VRAM\n");
1186                                 mc->real_vram_size = size_af;
1187                                 mc->mc_vram_size = size_af;
1188                         }
1189                         mc->vram_start = mc->gtt_end + 1;
1190                 }
1191                 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
1192                 dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",
1193                                 mc->mc_vram_size >> 20, mc->vram_start,
1194                                 mc->vram_end, mc->real_vram_size >> 20);
1195         } else {
1196                 u64 base = 0;
1197                 if (rdev->flags & RADEON_IS_IGP) {
1198                         base = RREG32(MC_VM_FB_LOCATION) & 0xFFFF;
1199                         base <<= 24;
1200                 }
1201                 radeon_vram_location(rdev, &rdev->mc, base);
1202                 rdev->mc.gtt_base_align = 0;
1203                 radeon_gtt_location(rdev, mc);
1204         }
1205 }
1206
1207 static int r600_mc_init(struct radeon_device *rdev)
1208 {
1209         u32 tmp;
1210         int chansize, numchan;
1211         uint32_t h_addr, l_addr;
1212         unsigned long long k8_addr;
1213
1214         /* Get VRAM informations */
1215         rdev->mc.vram_is_ddr = true;
1216         tmp = RREG32(RAMCFG);
1217         if (tmp & CHANSIZE_OVERRIDE) {
1218                 chansize = 16;
1219         } else if (tmp & CHANSIZE_MASK) {
1220                 chansize = 64;
1221         } else {
1222                 chansize = 32;
1223         }
1224         tmp = RREG32(CHMAP);
1225         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
1226         case 0:
1227         default:
1228                 numchan = 1;
1229                 break;
1230         case 1:
1231                 numchan = 2;
1232                 break;
1233         case 2:
1234                 numchan = 4;
1235                 break;
1236         case 3:
1237                 numchan = 8;
1238                 break;
1239         }
1240         rdev->mc.vram_width = numchan * chansize;
1241         /* Could aper size report 0 ? */
1242         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
1243         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
1244         /* Setup GPU memory space */
1245         rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
1246         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
1247         rdev->mc.visible_vram_size = rdev->mc.aper_size;
1248         r600_vram_gtt_location(rdev, &rdev->mc);
1249
1250         if (rdev->flags & RADEON_IS_IGP) {
1251                 rs690_pm_info(rdev);
1252                 rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
1253
1254                 if (rdev->family == CHIP_RS780 || rdev->family == CHIP_RS880) {
1255                         /* Use K8 direct mapping for fast fb access. */
1256                         rdev->fastfb_working = false;
1257                         h_addr = G_000012_K8_ADDR_EXT(RREG32_MC(R_000012_MC_MISC_UMA_CNTL));
1258                         l_addr = RREG32_MC(R_000011_K8_FB_LOCATION);
1259                         k8_addr = ((unsigned long long)h_addr) << 32 | l_addr;
1260 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
1261                         if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL)
1262 #endif
1263                         {
1264                                 /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport
1265                                 * memory is present.
1266                                 */
1267                                 if (rdev->mc.igp_sideport_enabled == false && radeon_fastfb == 1) {
1268                                         DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n",
1269                                                 (unsigned long long)rdev->mc.aper_base, k8_addr);
1270                                         rdev->mc.aper_base = (resource_size_t)k8_addr;
1271                                         rdev->fastfb_working = true;
1272                                 }
1273                         }
1274                 }
1275         }
1276
1277         radeon_update_bandwidth_info(rdev);
1278         return 0;
1279 }
1280
1281 int r600_vram_scratch_init(struct radeon_device *rdev)
1282 {
1283         int r;
1284
1285         if (rdev->vram_scratch.robj == NULL) {
1286                 r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE,
1287                                      PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
1288                                      NULL, &rdev->vram_scratch.robj);
1289                 if (r) {
1290                         return r;
1291                 }
1292         }
1293
1294         r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1295         if (unlikely(r != 0))
1296                 return r;
1297         r = radeon_bo_pin(rdev->vram_scratch.robj,
1298                           RADEON_GEM_DOMAIN_VRAM, &rdev->vram_scratch.gpu_addr);
1299         if (r) {
1300                 radeon_bo_unreserve(rdev->vram_scratch.robj);
1301                 return r;
1302         }
1303         r = radeon_bo_kmap(rdev->vram_scratch.robj,
1304                                 (void **)&rdev->vram_scratch.ptr);
1305         if (r)
1306                 radeon_bo_unpin(rdev->vram_scratch.robj);
1307         radeon_bo_unreserve(rdev->vram_scratch.robj);
1308
1309         return r;
1310 }
1311
1312 void r600_vram_scratch_fini(struct radeon_device *rdev)
1313 {
1314         int r;
1315
1316         if (rdev->vram_scratch.robj == NULL) {
1317                 return;
1318         }
1319         r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1320         if (likely(r == 0)) {
1321                 radeon_bo_kunmap(rdev->vram_scratch.robj);
1322                 radeon_bo_unpin(rdev->vram_scratch.robj);
1323                 radeon_bo_unreserve(rdev->vram_scratch.robj);
1324         }
1325         radeon_bo_unref(&rdev->vram_scratch.robj);
1326 }
1327
1328 void r600_set_bios_scratch_engine_hung(struct radeon_device *rdev, bool hung)
1329 {
1330         u32 tmp = RREG32(R600_BIOS_3_SCRATCH);
1331
1332         if (hung)
1333                 tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1334         else
1335                 tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1336
1337         WREG32(R600_BIOS_3_SCRATCH, tmp);
1338 }
1339
1340 static void r600_print_gpu_status_regs(struct radeon_device *rdev)
1341 {
1342         dev_info(rdev->dev, "  R_008010_GRBM_STATUS      = 0x%08X\n",
1343                  RREG32(R_008010_GRBM_STATUS));
1344         dev_info(rdev->dev, "  R_008014_GRBM_STATUS2     = 0x%08X\n",
1345                  RREG32(R_008014_GRBM_STATUS2));
1346         dev_info(rdev->dev, "  R_000E50_SRBM_STATUS      = 0x%08X\n",
1347                  RREG32(R_000E50_SRBM_STATUS));
1348         dev_info(rdev->dev, "  R_008674_CP_STALLED_STAT1 = 0x%08X\n",
1349                  RREG32(CP_STALLED_STAT1));
1350         dev_info(rdev->dev, "  R_008678_CP_STALLED_STAT2 = 0x%08X\n",
1351                  RREG32(CP_STALLED_STAT2));
1352         dev_info(rdev->dev, "  R_00867C_CP_BUSY_STAT     = 0x%08X\n",
1353                  RREG32(CP_BUSY_STAT));
1354         dev_info(rdev->dev, "  R_008680_CP_STAT          = 0x%08X\n",
1355                  RREG32(CP_STAT));
1356         dev_info(rdev->dev, "  R_00D034_DMA_STATUS_REG   = 0x%08X\n",
1357                 RREG32(DMA_STATUS_REG));
1358 }
1359
1360 static bool r600_is_display_hung(struct radeon_device *rdev)
1361 {
1362         u32 crtc_hung = 0;
1363         u32 crtc_status[2];
1364         u32 i, j, tmp;
1365
1366         for (i = 0; i < rdev->num_crtc; i++) {
1367                 if (RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN) {
1368                         crtc_status[i] = RREG32(AVIVO_D1CRTC_STATUS_HV_COUNT + crtc_offsets[i]);
1369                         crtc_hung |= (1 << i);
1370                 }
1371         }
1372
1373         for (j = 0; j < 10; j++) {
1374                 for (i = 0; i < rdev->num_crtc; i++) {
1375                         if (crtc_hung & (1 << i)) {
1376                                 tmp = RREG32(AVIVO_D1CRTC_STATUS_HV_COUNT + crtc_offsets[i]);
1377                                 if (tmp != crtc_status[i])
1378                                         crtc_hung &= ~(1 << i);
1379                         }
1380                 }
1381                 if (crtc_hung == 0)
1382                         return false;
1383                 udelay(100);
1384         }
1385
1386         return true;
1387 }
1388
1389 u32 r600_gpu_check_soft_reset(struct radeon_device *rdev)
1390 {
1391         u32 reset_mask = 0;
1392         u32 tmp;
1393
1394         /* GRBM_STATUS */
1395         tmp = RREG32(R_008010_GRBM_STATUS);
1396         if (rdev->family >= CHIP_RV770) {
1397                 if (G_008010_PA_BUSY(tmp) | G_008010_SC_BUSY(tmp) |
1398                     G_008010_SH_BUSY(tmp) | G_008010_SX_BUSY(tmp) |
1399                     G_008010_TA_BUSY(tmp) | G_008010_VGT_BUSY(tmp) |
1400                     G_008010_DB03_BUSY(tmp) | G_008010_CB03_BUSY(tmp) |
1401                     G_008010_SPI03_BUSY(tmp) | G_008010_VGT_BUSY_NO_DMA(tmp))
1402                         reset_mask |= RADEON_RESET_GFX;
1403         } else {
1404                 if (G_008010_PA_BUSY(tmp) | G_008010_SC_BUSY(tmp) |
1405                     G_008010_SH_BUSY(tmp) | G_008010_SX_BUSY(tmp) |
1406                     G_008010_TA03_BUSY(tmp) | G_008010_VGT_BUSY(tmp) |
1407                     G_008010_DB03_BUSY(tmp) | G_008010_CB03_BUSY(tmp) |
1408                     G_008010_SPI03_BUSY(tmp) | G_008010_VGT_BUSY_NO_DMA(tmp))
1409                         reset_mask |= RADEON_RESET_GFX;
1410         }
1411
1412         if (G_008010_CF_RQ_PENDING(tmp) | G_008010_PF_RQ_PENDING(tmp) |
1413             G_008010_CP_BUSY(tmp) | G_008010_CP_COHERENCY_BUSY(tmp))
1414                 reset_mask |= RADEON_RESET_CP;
1415
1416         if (G_008010_GRBM_EE_BUSY(tmp))
1417                 reset_mask |= RADEON_RESET_GRBM | RADEON_RESET_GFX | RADEON_RESET_CP;
1418
1419         /* DMA_STATUS_REG */
1420         tmp = RREG32(DMA_STATUS_REG);
1421         if (!(tmp & DMA_IDLE))
1422                 reset_mask |= RADEON_RESET_DMA;
1423
1424         /* SRBM_STATUS */
1425         tmp = RREG32(R_000E50_SRBM_STATUS);
1426         if (G_000E50_RLC_RQ_PENDING(tmp) | G_000E50_RLC_BUSY(tmp))
1427                 reset_mask |= RADEON_RESET_RLC;
1428
1429         if (G_000E50_IH_BUSY(tmp))
1430                 reset_mask |= RADEON_RESET_IH;
1431
1432         if (G_000E50_SEM_BUSY(tmp))
1433                 reset_mask |= RADEON_RESET_SEM;
1434
1435         if (G_000E50_GRBM_RQ_PENDING(tmp))
1436                 reset_mask |= RADEON_RESET_GRBM;
1437
1438         if (G_000E50_VMC_BUSY(tmp))
1439                 reset_mask |= RADEON_RESET_VMC;
1440
1441         if (G_000E50_MCB_BUSY(tmp) | G_000E50_MCDZ_BUSY(tmp) |
1442             G_000E50_MCDY_BUSY(tmp) | G_000E50_MCDX_BUSY(tmp) |
1443             G_000E50_MCDW_BUSY(tmp))
1444                 reset_mask |= RADEON_RESET_MC;
1445
1446         if (r600_is_display_hung(rdev))
1447                 reset_mask |= RADEON_RESET_DISPLAY;
1448
1449         /* Skip MC reset as it's mostly likely not hung, just busy */
1450         if (reset_mask & RADEON_RESET_MC) {
1451                 DRM_DEBUG("MC busy: 0x%08X, clearing.\n", reset_mask);
1452                 reset_mask &= ~RADEON_RESET_MC;
1453         }
1454
1455         return reset_mask;
1456 }
1457
1458 static void r600_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
1459 {
1460         struct rv515_mc_save save;
1461         u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
1462         u32 tmp;
1463
1464         if (reset_mask == 0)
1465                 return;
1466
1467         dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
1468
1469         r600_print_gpu_status_regs(rdev);
1470
1471         /* Disable CP parsing/prefetching */
1472         if (rdev->family >= CHIP_RV770)
1473                 WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1) | S_0086D8_CP_PFP_HALT(1));
1474         else
1475                 WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
1476
1477         /* disable the RLC */
1478         WREG32(RLC_CNTL, 0);
1479
1480         if (reset_mask & RADEON_RESET_DMA) {
1481                 /* Disable DMA */
1482                 tmp = RREG32(DMA_RB_CNTL);
1483                 tmp &= ~DMA_RB_ENABLE;
1484                 WREG32(DMA_RB_CNTL, tmp);
1485         }
1486
1487         mdelay(50);
1488
1489         rv515_mc_stop(rdev, &save);
1490         if (r600_mc_wait_for_idle(rdev)) {
1491                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1492         }
1493
1494         if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) {
1495                 if (rdev->family >= CHIP_RV770)
1496                         grbm_soft_reset |= S_008020_SOFT_RESET_DB(1) |
1497                                 S_008020_SOFT_RESET_CB(1) |
1498                                 S_008020_SOFT_RESET_PA(1) |
1499                                 S_008020_SOFT_RESET_SC(1) |
1500                                 S_008020_SOFT_RESET_SPI(1) |
1501                                 S_008020_SOFT_RESET_SX(1) |
1502                                 S_008020_SOFT_RESET_SH(1) |
1503                                 S_008020_SOFT_RESET_TC(1) |
1504                                 S_008020_SOFT_RESET_TA(1) |
1505                                 S_008020_SOFT_RESET_VC(1) |
1506                                 S_008020_SOFT_RESET_VGT(1);
1507                 else
1508                         grbm_soft_reset |= S_008020_SOFT_RESET_CR(1) |
1509                                 S_008020_SOFT_RESET_DB(1) |
1510                                 S_008020_SOFT_RESET_CB(1) |
1511                                 S_008020_SOFT_RESET_PA(1) |
1512                                 S_008020_SOFT_RESET_SC(1) |
1513                                 S_008020_SOFT_RESET_SMX(1) |
1514                                 S_008020_SOFT_RESET_SPI(1) |
1515                                 S_008020_SOFT_RESET_SX(1) |
1516                                 S_008020_SOFT_RESET_SH(1) |
1517                                 S_008020_SOFT_RESET_TC(1) |
1518                                 S_008020_SOFT_RESET_TA(1) |
1519                                 S_008020_SOFT_RESET_VC(1) |
1520                                 S_008020_SOFT_RESET_VGT(1);
1521         }
1522
1523         if (reset_mask & RADEON_RESET_CP) {
1524                 grbm_soft_reset |= S_008020_SOFT_RESET_CP(1) |
1525                         S_008020_SOFT_RESET_VGT(1);
1526
1527                 srbm_soft_reset |= S_000E60_SOFT_RESET_GRBM(1);
1528         }
1529
1530         if (reset_mask & RADEON_RESET_DMA) {
1531                 if (rdev->family >= CHIP_RV770)
1532                         srbm_soft_reset |= RV770_SOFT_RESET_DMA;
1533                 else
1534                         srbm_soft_reset |= SOFT_RESET_DMA;
1535         }
1536
1537         if (reset_mask & RADEON_RESET_RLC)
1538                 srbm_soft_reset |= S_000E60_SOFT_RESET_RLC(1);
1539
1540         if (reset_mask & RADEON_RESET_SEM)
1541                 srbm_soft_reset |= S_000E60_SOFT_RESET_SEM(1);
1542
1543         if (reset_mask & RADEON_RESET_IH)
1544                 srbm_soft_reset |= S_000E60_SOFT_RESET_IH(1);
1545
1546         if (reset_mask & RADEON_RESET_GRBM)
1547                 srbm_soft_reset |= S_000E60_SOFT_RESET_GRBM(1);
1548
1549         if (!(rdev->flags & RADEON_IS_IGP)) {
1550                 if (reset_mask & RADEON_RESET_MC)
1551                         srbm_soft_reset |= S_000E60_SOFT_RESET_MC(1);
1552         }
1553
1554         if (reset_mask & RADEON_RESET_VMC)
1555                 srbm_soft_reset |= S_000E60_SOFT_RESET_VMC(1);
1556
1557         if (grbm_soft_reset) {
1558                 tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1559                 tmp |= grbm_soft_reset;
1560                 dev_info(rdev->dev, "R_008020_GRBM_SOFT_RESET=0x%08X\n", tmp);
1561                 WREG32(R_008020_GRBM_SOFT_RESET, tmp);
1562                 tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1563
1564                 udelay(50);
1565
1566                 tmp &= ~grbm_soft_reset;
1567                 WREG32(R_008020_GRBM_SOFT_RESET, tmp);
1568                 tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1569         }
1570
1571         if (srbm_soft_reset) {
1572                 tmp = RREG32(SRBM_SOFT_RESET);
1573                 tmp |= srbm_soft_reset;
1574                 dev_info(rdev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1575                 WREG32(SRBM_SOFT_RESET, tmp);
1576                 tmp = RREG32(SRBM_SOFT_RESET);
1577
1578                 udelay(50);
1579
1580                 tmp &= ~srbm_soft_reset;
1581                 WREG32(SRBM_SOFT_RESET, tmp);
1582                 tmp = RREG32(SRBM_SOFT_RESET);
1583         }
1584
1585         /* Wait a little for things to settle down */
1586         mdelay(1);
1587
1588         rv515_mc_resume(rdev, &save);
1589         udelay(50);
1590
1591         r600_print_gpu_status_regs(rdev);
1592 }
1593
1594 int r600_asic_reset(struct radeon_device *rdev)
1595 {
1596         u32 reset_mask;
1597
1598         reset_mask = r600_gpu_check_soft_reset(rdev);
1599
1600         if (reset_mask)
1601                 r600_set_bios_scratch_engine_hung(rdev, true);
1602
1603         r600_gpu_soft_reset(rdev, reset_mask);
1604
1605         reset_mask = r600_gpu_check_soft_reset(rdev);
1606
1607         if (!reset_mask)
1608                 r600_set_bios_scratch_engine_hung(rdev, false);
1609
1610         return 0;
1611 }
1612
1613 /**
1614  * r600_gfx_is_lockup - Check if the GFX engine is locked up
1615  *
1616  * @rdev: radeon_device pointer
1617  * @ring: radeon_ring structure holding ring information
1618  *
1619  * Check if the GFX engine is locked up.
1620  * Returns true if the engine appears to be locked up, false if not.
1621  */
1622 bool r600_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
1623 {
1624         u32 reset_mask = r600_gpu_check_soft_reset(rdev);
1625
1626         if (!(reset_mask & (RADEON_RESET_GFX |
1627                             RADEON_RESET_COMPUTE |
1628                             RADEON_RESET_CP))) {
1629                 radeon_ring_lockup_update(ring);
1630                 return false;
1631         }
1632         /* force CP activities */
1633         radeon_ring_force_activity(rdev, ring);
1634         return radeon_ring_test_lockup(rdev, ring);
1635 }
1636
1637 u32 r6xx_remap_render_backend(struct radeon_device *rdev,
1638                               u32 tiling_pipe_num,
1639                               u32 max_rb_num,
1640                               u32 total_max_rb_num,
1641                               u32 disabled_rb_mask)
1642 {
1643         u32 rendering_pipe_num, rb_num_width, req_rb_num;
1644         u32 pipe_rb_ratio, pipe_rb_remain, tmp;
1645         u32 data = 0, mask = 1 << (max_rb_num - 1);
1646         unsigned i, j;
1647
1648         /* mask out the RBs that don't exist on that asic */
1649         tmp = disabled_rb_mask | ((0xff << max_rb_num) & 0xff);
1650         /* make sure at least one RB is available */
1651         if ((tmp & 0xff) != 0xff)
1652                 disabled_rb_mask = tmp;
1653
1654         rendering_pipe_num = 1 << tiling_pipe_num;
1655         req_rb_num = total_max_rb_num - r600_count_pipe_bits(disabled_rb_mask);
1656         BUG_ON(rendering_pipe_num < req_rb_num);
1657
1658         pipe_rb_ratio = rendering_pipe_num / req_rb_num;
1659         pipe_rb_remain = rendering_pipe_num - pipe_rb_ratio * req_rb_num;
1660
1661         if (rdev->family <= CHIP_RV740) {
1662                 /* r6xx/r7xx */
1663                 rb_num_width = 2;
1664         } else {
1665                 /* eg+ */
1666                 rb_num_width = 4;
1667         }
1668
1669         for (i = 0; i < max_rb_num; i++) {
1670                 if (!(mask & disabled_rb_mask)) {
1671                         for (j = 0; j < pipe_rb_ratio; j++) {
1672                                 data <<= rb_num_width;
1673                                 data |= max_rb_num - i - 1;
1674                         }
1675                         if (pipe_rb_remain) {
1676                                 data <<= rb_num_width;
1677                                 data |= max_rb_num - i - 1;
1678                                 pipe_rb_remain--;
1679                         }
1680                 }
1681                 mask >>= 1;
1682         }
1683
1684         return data;
1685 }
1686
1687 int r600_count_pipe_bits(uint32_t val)
1688 {
1689         return hweight32(val);
1690 }
1691
1692 static void r600_gpu_init(struct radeon_device *rdev)
1693 {
1694         u32 tiling_config;
1695         u32 ramcfg;
1696         u32 cc_rb_backend_disable;
1697         u32 cc_gc_shader_pipe_config;
1698         u32 tmp;
1699         int i, j;
1700         u32 sq_config;
1701         u32 sq_gpr_resource_mgmt_1 = 0;
1702         u32 sq_gpr_resource_mgmt_2 = 0;
1703         u32 sq_thread_resource_mgmt = 0;
1704         u32 sq_stack_resource_mgmt_1 = 0;
1705         u32 sq_stack_resource_mgmt_2 = 0;
1706         u32 disabled_rb_mask;
1707
1708         rdev->config.r600.tiling_group_size = 256;
1709         switch (rdev->family) {
1710         case CHIP_R600:
1711                 rdev->config.r600.max_pipes = 4;
1712                 rdev->config.r600.max_tile_pipes = 8;
1713                 rdev->config.r600.max_simds = 4;
1714                 rdev->config.r600.max_backends = 4;
1715                 rdev->config.r600.max_gprs = 256;
1716                 rdev->config.r600.max_threads = 192;
1717                 rdev->config.r600.max_stack_entries = 256;
1718                 rdev->config.r600.max_hw_contexts = 8;
1719                 rdev->config.r600.max_gs_threads = 16;
1720                 rdev->config.r600.sx_max_export_size = 128;
1721                 rdev->config.r600.sx_max_export_pos_size = 16;
1722                 rdev->config.r600.sx_max_export_smx_size = 128;
1723                 rdev->config.r600.sq_num_cf_insts = 2;
1724                 break;
1725         case CHIP_RV630:
1726         case CHIP_RV635:
1727                 rdev->config.r600.max_pipes = 2;
1728                 rdev->config.r600.max_tile_pipes = 2;
1729                 rdev->config.r600.max_simds = 3;
1730                 rdev->config.r600.max_backends = 1;
1731                 rdev->config.r600.max_gprs = 128;
1732                 rdev->config.r600.max_threads = 192;
1733                 rdev->config.r600.max_stack_entries = 128;
1734                 rdev->config.r600.max_hw_contexts = 8;
1735                 rdev->config.r600.max_gs_threads = 4;
1736                 rdev->config.r600.sx_max_export_size = 128;
1737                 rdev->config.r600.sx_max_export_pos_size = 16;
1738                 rdev->config.r600.sx_max_export_smx_size = 128;
1739                 rdev->config.r600.sq_num_cf_insts = 2;
1740                 break;
1741         case CHIP_RV610:
1742         case CHIP_RV620:
1743         case CHIP_RS780:
1744         case CHIP_RS880:
1745                 rdev->config.r600.max_pipes = 1;
1746                 rdev->config.r600.max_tile_pipes = 1;
1747                 rdev->config.r600.max_simds = 2;
1748                 rdev->config.r600.max_backends = 1;
1749                 rdev->config.r600.max_gprs = 128;
1750                 rdev->config.r600.max_threads = 192;
1751                 rdev->config.r600.max_stack_entries = 128;
1752                 rdev->config.r600.max_hw_contexts = 4;
1753                 rdev->config.r600.max_gs_threads = 4;
1754                 rdev->config.r600.sx_max_export_size = 128;
1755                 rdev->config.r600.sx_max_export_pos_size = 16;
1756                 rdev->config.r600.sx_max_export_smx_size = 128;
1757                 rdev->config.r600.sq_num_cf_insts = 1;
1758                 break;
1759         case CHIP_RV670:
1760                 rdev->config.r600.max_pipes = 4;
1761                 rdev->config.r600.max_tile_pipes = 4;
1762                 rdev->config.r600.max_simds = 4;
1763                 rdev->config.r600.max_backends = 4;
1764                 rdev->config.r600.max_gprs = 192;
1765                 rdev->config.r600.max_threads = 192;
1766                 rdev->config.r600.max_stack_entries = 256;
1767                 rdev->config.r600.max_hw_contexts = 8;
1768                 rdev->config.r600.max_gs_threads = 16;
1769                 rdev->config.r600.sx_max_export_size = 128;
1770                 rdev->config.r600.sx_max_export_pos_size = 16;
1771                 rdev->config.r600.sx_max_export_smx_size = 128;
1772                 rdev->config.r600.sq_num_cf_insts = 2;
1773                 break;
1774         default:
1775                 break;
1776         }
1777
1778         /* Initialize HDP */
1779         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1780                 WREG32((0x2c14 + j), 0x00000000);
1781                 WREG32((0x2c18 + j), 0x00000000);
1782                 WREG32((0x2c1c + j), 0x00000000);
1783                 WREG32((0x2c20 + j), 0x00000000);
1784                 WREG32((0x2c24 + j), 0x00000000);
1785         }
1786
1787         WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
1788
1789         /* Setup tiling */
1790         tiling_config = 0;
1791         ramcfg = RREG32(RAMCFG);
1792         switch (rdev->config.r600.max_tile_pipes) {
1793         case 1:
1794                 tiling_config |= PIPE_TILING(0);
1795                 break;
1796         case 2:
1797                 tiling_config |= PIPE_TILING(1);
1798                 break;
1799         case 4:
1800                 tiling_config |= PIPE_TILING(2);
1801                 break;
1802         case 8:
1803                 tiling_config |= PIPE_TILING(3);
1804                 break;
1805         default:
1806                 break;
1807         }
1808         rdev->config.r600.tiling_npipes = rdev->config.r600.max_tile_pipes;
1809         rdev->config.r600.tiling_nbanks = 4 << ((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
1810         tiling_config |= BANK_TILING((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
1811         tiling_config |= GROUP_SIZE((ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
1812
1813         tmp = (ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
1814         if (tmp > 3) {
1815                 tiling_config |= ROW_TILING(3);
1816                 tiling_config |= SAMPLE_SPLIT(3);
1817         } else {
1818                 tiling_config |= ROW_TILING(tmp);
1819                 tiling_config |= SAMPLE_SPLIT(tmp);
1820         }
1821         tiling_config |= BANK_SWAPS(1);
1822
1823         cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE) & 0x00ff0000;
1824         tmp = R6XX_MAX_BACKENDS -
1825                 r600_count_pipe_bits((cc_rb_backend_disable >> 16) & R6XX_MAX_BACKENDS_MASK);
1826         if (tmp < rdev->config.r600.max_backends) {
1827                 rdev->config.r600.max_backends = tmp;
1828         }
1829
1830         cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & 0x00ffff00;
1831         tmp = R6XX_MAX_PIPES -
1832                 r600_count_pipe_bits((cc_gc_shader_pipe_config >> 8) & R6XX_MAX_PIPES_MASK);
1833         if (tmp < rdev->config.r600.max_pipes) {
1834                 rdev->config.r600.max_pipes = tmp;
1835         }
1836         tmp = R6XX_MAX_SIMDS -
1837                 r600_count_pipe_bits((cc_gc_shader_pipe_config >> 16) & R6XX_MAX_SIMDS_MASK);
1838         if (tmp < rdev->config.r600.max_simds) {
1839                 rdev->config.r600.max_simds = tmp;
1840         }
1841
1842         disabled_rb_mask = (RREG32(CC_RB_BACKEND_DISABLE) >> 16) & R6XX_MAX_BACKENDS_MASK;
1843         tmp = (tiling_config & PIPE_TILING__MASK) >> PIPE_TILING__SHIFT;
1844         tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.r600.max_backends,
1845                                         R6XX_MAX_BACKENDS, disabled_rb_mask);
1846         tiling_config |= tmp << 16;
1847         rdev->config.r600.backend_map = tmp;
1848
1849         rdev->config.r600.tile_config = tiling_config;
1850         WREG32(GB_TILING_CONFIG, tiling_config);
1851         WREG32(DCP_TILING_CONFIG, tiling_config & 0xffff);
1852         WREG32(HDP_TILING_CONFIG, tiling_config & 0xffff);
1853         WREG32(DMA_TILING_CONFIG, tiling_config & 0xffff);
1854
1855         tmp = R6XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> 8);
1856         WREG32(VGT_OUT_DEALLOC_CNTL, (tmp * 4) & DEALLOC_DIST_MASK);
1857         WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((tmp * 4) - 2) & VTX_REUSE_DEPTH_MASK);
1858
1859         /* Setup some CP states */
1860         WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) | ROQ_IB2_START(0x2b)));
1861         WREG32(CP_MEQ_THRESHOLDS, (MEQ_END(0x40) | ROQ_END(0x40)));
1862
1863         WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO | SYNC_GRADIENT |
1864                              SYNC_WALKER | SYNC_ALIGNER));
1865         /* Setup various GPU states */
1866         if (rdev->family == CHIP_RV670)
1867                 WREG32(ARB_GDEC_RD_CNTL, 0x00000021);
1868
1869         tmp = RREG32(SX_DEBUG_1);
1870         tmp |= SMX_EVENT_RELEASE;
1871         if ((rdev->family > CHIP_R600))
1872                 tmp |= ENABLE_NEW_SMX_ADDRESS;
1873         WREG32(SX_DEBUG_1, tmp);
1874
1875         if (((rdev->family) == CHIP_R600) ||
1876             ((rdev->family) == CHIP_RV630) ||
1877             ((rdev->family) == CHIP_RV610) ||
1878             ((rdev->family) == CHIP_RV620) ||
1879             ((rdev->family) == CHIP_RS780) ||
1880             ((rdev->family) == CHIP_RS880)) {
1881                 WREG32(DB_DEBUG, PREZ_MUST_WAIT_FOR_POSTZ_DONE);
1882         } else {
1883                 WREG32(DB_DEBUG, 0);
1884         }
1885         WREG32(DB_WATERMARKS, (DEPTH_FREE(4) | DEPTH_CACHELINE_FREE(16) |
1886                                DEPTH_FLUSH(16) | DEPTH_PENDING_FREE(4)));
1887
1888         WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
1889         WREG32(VGT_NUM_INSTANCES, 0);
1890
1891         WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
1892         WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(0));
1893
1894         tmp = RREG32(SQ_MS_FIFO_SIZES);
1895         if (((rdev->family) == CHIP_RV610) ||
1896             ((rdev->family) == CHIP_RV620) ||
1897             ((rdev->family) == CHIP_RS780) ||
1898             ((rdev->family) == CHIP_RS880)) {
1899                 tmp = (CACHE_FIFO_SIZE(0xa) |
1900                        FETCH_FIFO_HIWATER(0xa) |
1901                        DONE_FIFO_HIWATER(0xe0) |
1902                        ALU_UPDATE_FIFO_HIWATER(0x8));
1903         } else if (((rdev->family) == CHIP_R600) ||
1904                    ((rdev->family) == CHIP_RV630)) {
1905                 tmp &= ~DONE_FIFO_HIWATER(0xff);
1906                 tmp |= DONE_FIFO_HIWATER(0x4);
1907         }
1908         WREG32(SQ_MS_FIFO_SIZES, tmp);
1909
1910         /* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
1911          * should be adjusted as needed by the 2D/3D drivers.  This just sets default values
1912          */
1913         sq_config = RREG32(SQ_CONFIG);
1914         sq_config &= ~(PS_PRIO(3) |
1915                        VS_PRIO(3) |
1916                        GS_PRIO(3) |
1917                        ES_PRIO(3));
1918         sq_config |= (DX9_CONSTS |
1919                       VC_ENABLE |
1920                       PS_PRIO(0) |
1921                       VS_PRIO(1) |
1922                       GS_PRIO(2) |
1923                       ES_PRIO(3));
1924
1925         if ((rdev->family) == CHIP_R600) {
1926                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(124) |
1927                                           NUM_VS_GPRS(124) |
1928                                           NUM_CLAUSE_TEMP_GPRS(4));
1929                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(0) |
1930                                           NUM_ES_GPRS(0));
1931                 sq_thread_resource_mgmt = (NUM_PS_THREADS(136) |
1932                                            NUM_VS_THREADS(48) |
1933                                            NUM_GS_THREADS(4) |
1934                                            NUM_ES_THREADS(4));
1935                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(128) |
1936                                             NUM_VS_STACK_ENTRIES(128));
1937                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(0) |
1938                                             NUM_ES_STACK_ENTRIES(0));
1939         } else if (((rdev->family) == CHIP_RV610) ||
1940                    ((rdev->family) == CHIP_RV620) ||
1941                    ((rdev->family) == CHIP_RS780) ||
1942                    ((rdev->family) == CHIP_RS880)) {
1943                 /* no vertex cache */
1944                 sq_config &= ~VC_ENABLE;
1945
1946                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1947                                           NUM_VS_GPRS(44) |
1948                                           NUM_CLAUSE_TEMP_GPRS(2));
1949                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
1950                                           NUM_ES_GPRS(17));
1951                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1952                                            NUM_VS_THREADS(78) |
1953                                            NUM_GS_THREADS(4) |
1954                                            NUM_ES_THREADS(31));
1955                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
1956                                             NUM_VS_STACK_ENTRIES(40));
1957                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
1958                                             NUM_ES_STACK_ENTRIES(16));
1959         } else if (((rdev->family) == CHIP_RV630) ||
1960                    ((rdev->family) == CHIP_RV635)) {
1961                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1962                                           NUM_VS_GPRS(44) |
1963                                           NUM_CLAUSE_TEMP_GPRS(2));
1964                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(18) |
1965                                           NUM_ES_GPRS(18));
1966                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1967                                            NUM_VS_THREADS(78) |
1968                                            NUM_GS_THREADS(4) |
1969                                            NUM_ES_THREADS(31));
1970                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
1971                                             NUM_VS_STACK_ENTRIES(40));
1972                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
1973                                             NUM_ES_STACK_ENTRIES(16));
1974         } else if ((rdev->family) == CHIP_RV670) {
1975                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1976                                           NUM_VS_GPRS(44) |
1977                                           NUM_CLAUSE_TEMP_GPRS(2));
1978                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
1979                                           NUM_ES_GPRS(17));
1980                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1981                                            NUM_VS_THREADS(78) |
1982                                            NUM_GS_THREADS(4) |
1983                                            NUM_ES_THREADS(31));
1984                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(64) |
1985                                             NUM_VS_STACK_ENTRIES(64));
1986                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(64) |
1987                                             NUM_ES_STACK_ENTRIES(64));
1988         }
1989
1990         WREG32(SQ_CONFIG, sq_config);
1991         WREG32(SQ_GPR_RESOURCE_MGMT_1,  sq_gpr_resource_mgmt_1);
1992         WREG32(SQ_GPR_RESOURCE_MGMT_2,  sq_gpr_resource_mgmt_2);
1993         WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
1994         WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
1995         WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
1996
1997         if (((rdev->family) == CHIP_RV610) ||
1998             ((rdev->family) == CHIP_RV620) ||
1999             ((rdev->family) == CHIP_RS780) ||
2000             ((rdev->family) == CHIP_RS880)) {
2001                 WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(TC_ONLY));
2002         } else {
2003                 WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC));
2004         }
2005
2006         /* More default values. 2D/3D driver should adjust as needed */
2007         WREG32(PA_SC_AA_SAMPLE_LOCS_2S, (S0_X(0xc) | S0_Y(0x4) |
2008                                          S1_X(0x4) | S1_Y(0xc)));
2009         WREG32(PA_SC_AA_SAMPLE_LOCS_4S, (S0_X(0xe) | S0_Y(0xe) |
2010                                          S1_X(0x2) | S1_Y(0x2) |
2011                                          S2_X(0xa) | S2_Y(0x6) |
2012                                          S3_X(0x6) | S3_Y(0xa)));
2013         WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD0, (S0_X(0xe) | S0_Y(0xb) |
2014                                              S1_X(0x4) | S1_Y(0xc) |
2015                                              S2_X(0x1) | S2_Y(0x6) |
2016                                              S3_X(0xa) | S3_Y(0xe)));
2017         WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD1, (S4_X(0x6) | S4_Y(0x1) |
2018                                              S5_X(0x0) | S5_Y(0x0) |
2019                                              S6_X(0xb) | S6_Y(0x4) |
2020                                              S7_X(0x7) | S7_Y(0x8)));
2021
2022         WREG32(VGT_STRMOUT_EN, 0);
2023         tmp = rdev->config.r600.max_pipes * 16;
2024         switch (rdev->family) {
2025         case CHIP_RV610:
2026         case CHIP_RV620:
2027         case CHIP_RS780:
2028         case CHIP_RS880:
2029                 tmp += 32;
2030                 break;
2031         case CHIP_RV670:
2032                 tmp += 128;
2033                 break;
2034         default:
2035                 break;
2036         }
2037         if (tmp > 256) {
2038                 tmp = 256;
2039         }
2040         WREG32(VGT_ES_PER_GS, 128);
2041         WREG32(VGT_GS_PER_ES, tmp);
2042         WREG32(VGT_GS_PER_VS, 2);
2043         WREG32(VGT_GS_VERTEX_REUSE, 16);
2044
2045         /* more default values. 2D/3D driver should adjust as needed */
2046         WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
2047         WREG32(VGT_STRMOUT_EN, 0);
2048         WREG32(SX_MISC, 0);
2049         WREG32(PA_SC_MODE_CNTL, 0);
2050         WREG32(PA_SC_AA_CONFIG, 0);
2051         WREG32(PA_SC_LINE_STIPPLE, 0);
2052         WREG32(SPI_INPUT_Z, 0);
2053         WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
2054         WREG32(CB_COLOR7_FRAG, 0);
2055
2056         /* Clear render buffer base addresses */
2057         WREG32(CB_COLOR0_BASE, 0);
2058         WREG32(CB_COLOR1_BASE, 0);
2059         WREG32(CB_COLOR2_BASE, 0);
2060         WREG32(CB_COLOR3_BASE, 0);
2061         WREG32(CB_COLOR4_BASE, 0);
2062         WREG32(CB_COLOR5_BASE, 0);
2063         WREG32(CB_COLOR6_BASE, 0);
2064         WREG32(CB_COLOR7_BASE, 0);
2065         WREG32(CB_COLOR7_FRAG, 0);
2066
2067         switch (rdev->family) {
2068         case CHIP_RV610:
2069         case CHIP_RV620:
2070         case CHIP_RS780:
2071         case CHIP_RS880:
2072                 tmp = TC_L2_SIZE(8);
2073                 break;
2074         case CHIP_RV630:
2075         case CHIP_RV635:
2076                 tmp = TC_L2_SIZE(4);
2077                 break;
2078         case CHIP_R600:
2079                 tmp = TC_L2_SIZE(0) | L2_DISABLE_LATE_HIT;
2080                 break;
2081         default:
2082                 tmp = TC_L2_SIZE(0);
2083                 break;
2084         }
2085         WREG32(TC_CNTL, tmp);
2086
2087         tmp = RREG32(HDP_HOST_PATH_CNTL);
2088         WREG32(HDP_HOST_PATH_CNTL, tmp);
2089
2090         tmp = RREG32(ARB_POP);
2091         tmp |= ENABLE_TC128;
2092         WREG32(ARB_POP, tmp);
2093
2094         WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
2095         WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
2096                                NUM_CLIP_SEQ(3)));
2097         WREG32(PA_SC_ENHANCE, FORCE_EOV_MAX_CLK_CNT(4095));
2098         WREG32(VC_ENHANCE, 0);
2099 }
2100
2101
2102 /*
2103  * Indirect registers accessor
2104  */
2105 u32 r600_pciep_rreg(struct radeon_device *rdev, u32 reg)
2106 {
2107         unsigned long flags;
2108         u32 r;
2109
2110         spin_lock_irqsave(&rdev->pciep_idx_lock, flags);
2111         WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
2112         (void)RREG32(PCIE_PORT_INDEX);
2113         r = RREG32(PCIE_PORT_DATA);
2114         spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags);
2115         return r;
2116 }
2117
2118 void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
2119 {
2120         unsigned long flags;
2121
2122         spin_lock_irqsave(&rdev->pciep_idx_lock, flags);
2123         WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
2124         (void)RREG32(PCIE_PORT_INDEX);
2125         WREG32(PCIE_PORT_DATA, (v));
2126         (void)RREG32(PCIE_PORT_DATA);
2127         spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags);
2128 }
2129
2130 /*
2131  * CP & Ring
2132  */
2133 void r600_cp_stop(struct radeon_device *rdev)
2134 {
2135         radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
2136         WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
2137         WREG32(SCRATCH_UMSK, 0);
2138         rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
2139 }
2140
2141 int r600_init_microcode(struct radeon_device *rdev)
2142 {
2143         const char *chip_name;
2144         const char *rlc_chip_name;
2145         const char *smc_chip_name = "RV770";
2146         size_t pfp_req_size, me_req_size, rlc_req_size, smc_req_size = 0;
2147         char fw_name[30];
2148         int err;
2149
2150         DRM_DEBUG("\n");
2151
2152         switch (rdev->family) {
2153         case CHIP_R600:
2154                 chip_name = "R600";
2155                 rlc_chip_name = "R600";
2156                 break;
2157         case CHIP_RV610:
2158                 chip_name = "RV610";
2159                 rlc_chip_name = "R600";
2160                 break;
2161         case CHIP_RV630:
2162                 chip_name = "RV630";
2163                 rlc_chip_name = "R600";
2164                 break;
2165         case CHIP_RV620:
2166                 chip_name = "RV620";
2167                 rlc_chip_name = "R600";
2168                 break;
2169         case CHIP_RV635:
2170                 chip_name = "RV635";
2171                 rlc_chip_name = "R600";
2172                 break;
2173         case CHIP_RV670:
2174                 chip_name = "RV670";
2175                 rlc_chip_name = "R600";
2176                 break;
2177         case CHIP_RS780:
2178         case CHIP_RS880:
2179                 chip_name = "RS780";
2180                 rlc_chip_name = "R600";
2181                 break;
2182         case CHIP_RV770:
2183                 chip_name = "RV770";
2184                 rlc_chip_name = "R700";
2185                 smc_chip_name = "RV770";
2186                 smc_req_size = ALIGN(RV770_SMC_UCODE_SIZE, 4);
2187                 break;
2188         case CHIP_RV730:
2189                 chip_name = "RV730";
2190                 rlc_chip_name = "R700";
2191                 smc_chip_name = "RV730";
2192                 smc_req_size = ALIGN(RV730_SMC_UCODE_SIZE, 4);
2193                 break;
2194         case CHIP_RV710:
2195                 chip_name = "RV710";
2196                 rlc_chip_name = "R700";
2197                 smc_chip_name = "RV710";
2198                 smc_req_size = ALIGN(RV710_SMC_UCODE_SIZE, 4);
2199                 break;
2200         case CHIP_RV740:
2201                 chip_name = "RV730";
2202                 rlc_chip_name = "R700";
2203                 smc_chip_name = "RV740";
2204                 smc_req_size = ALIGN(RV740_SMC_UCODE_SIZE, 4);
2205                 break;
2206         case CHIP_CEDAR:
2207                 chip_name = "CEDAR";
2208                 rlc_chip_name = "CEDAR";
2209                 smc_chip_name = "CEDAR";
2210                 smc_req_size = ALIGN(CEDAR_SMC_UCODE_SIZE, 4);
2211                 break;
2212         case CHIP_REDWOOD:
2213                 chip_name = "REDWOOD";
2214                 rlc_chip_name = "REDWOOD";
2215                 smc_chip_name = "REDWOOD";
2216                 smc_req_size = ALIGN(REDWOOD_SMC_UCODE_SIZE, 4);
2217                 break;
2218         case CHIP_JUNIPER:
2219                 chip_name = "JUNIPER";
2220                 rlc_chip_name = "JUNIPER";
2221                 smc_chip_name = "JUNIPER";
2222                 smc_req_size = ALIGN(JUNIPER_SMC_UCODE_SIZE, 4);
2223                 break;
2224         case CHIP_CYPRESS:
2225         case CHIP_HEMLOCK:
2226                 chip_name = "CYPRESS";
2227                 rlc_chip_name = "CYPRESS";
2228                 smc_chip_name = "CYPRESS";
2229                 smc_req_size = ALIGN(CYPRESS_SMC_UCODE_SIZE, 4);
2230                 break;
2231         case CHIP_PALM:
2232                 chip_name = "PALM";
2233                 rlc_chip_name = "SUMO";
2234                 break;
2235         case CHIP_SUMO:
2236                 chip_name = "SUMO";
2237                 rlc_chip_name = "SUMO";
2238                 break;
2239         case CHIP_SUMO2:
2240                 chip_name = "SUMO2";
2241                 rlc_chip_name = "SUMO";
2242                 break;
2243         default: BUG();
2244         }
2245
2246         if (rdev->family >= CHIP_CEDAR) {
2247                 pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
2248                 me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
2249                 rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
2250         } else if (rdev->family >= CHIP_RV770) {
2251                 pfp_req_size = R700_PFP_UCODE_SIZE * 4;
2252                 me_req_size = R700_PM4_UCODE_SIZE * 4;
2253                 rlc_req_size = R700_RLC_UCODE_SIZE * 4;
2254         } else {
2255                 pfp_req_size = R600_PFP_UCODE_SIZE * 4;
2256                 me_req_size = R600_PM4_UCODE_SIZE * 12;
2257                 rlc_req_size = R600_RLC_UCODE_SIZE * 4;
2258         }
2259
2260         DRM_INFO("Loading %s Microcode\n", chip_name);
2261
2262         snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
2263         err = request_firmware(&rdev->pfp_fw, fw_name, rdev->dev);
2264         if (err)
2265                 goto out;
2266         if (rdev->pfp_fw->size != pfp_req_size) {
2267                 printk(KERN_ERR
2268                        "r600_cp: Bogus length %zu in firmware \"%s\"\n",
2269                        rdev->pfp_fw->size, fw_name);
2270                 err = -EINVAL;
2271                 goto out;
2272         }
2273
2274         snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
2275         err = request_firmware(&rdev->me_fw, fw_name, rdev->dev);
2276         if (err)
2277                 goto out;
2278         if (rdev->me_fw->size != me_req_size) {
2279                 printk(KERN_ERR
2280                        "r600_cp: Bogus length %zu in firmware \"%s\"\n",
2281                        rdev->me_fw->size, fw_name);
2282                 err = -EINVAL;
2283         }
2284
2285         snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
2286         err = request_firmware(&rdev->rlc_fw, fw_name, rdev->dev);
2287         if (err)
2288                 goto out;
2289         if (rdev->rlc_fw->size != rlc_req_size) {
2290                 printk(KERN_ERR
2291                        "r600_rlc: Bogus length %zu in firmware \"%s\"\n",
2292                        rdev->rlc_fw->size, fw_name);
2293                 err = -EINVAL;
2294         }
2295
2296         if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_HEMLOCK)) {
2297                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", smc_chip_name);
2298                 err = request_firmware(&rdev->smc_fw, fw_name, rdev->dev);
2299                 if (err) {
2300                         printk(KERN_ERR
2301                                "smc: error loading firmware \"%s\"\n",
2302                                fw_name);
2303                         release_firmware(rdev->smc_fw);
2304                         rdev->smc_fw = NULL;
2305                 } else if (rdev->smc_fw->size != smc_req_size) {
2306                         printk(KERN_ERR
2307                                "smc: Bogus length %zu in firmware \"%s\"\n",
2308                                rdev->smc_fw->size, fw_name);
2309                         err = -EINVAL;
2310                 }
2311         }
2312
2313 out:
2314         if (err) {
2315                 if (err != -EINVAL)
2316                         printk(KERN_ERR
2317                                "r600_cp: Failed to load firmware \"%s\"\n",
2318                                fw_name);
2319                 release_firmware(rdev->pfp_fw);
2320                 rdev->pfp_fw = NULL;
2321                 release_firmware(rdev->me_fw);
2322                 rdev->me_fw = NULL;
2323                 release_firmware(rdev->rlc_fw);
2324                 rdev->rlc_fw = NULL;
2325                 release_firmware(rdev->smc_fw);
2326                 rdev->smc_fw = NULL;
2327         }
2328         return err;
2329 }
2330
2331 static int r600_cp_load_microcode(struct radeon_device *rdev)
2332 {
2333         const __be32 *fw_data;
2334         int i;
2335
2336         if (!rdev->me_fw || !rdev->pfp_fw)
2337                 return -EINVAL;
2338
2339         r600_cp_stop(rdev);
2340
2341         WREG32(CP_RB_CNTL,
2342 #ifdef __BIG_ENDIAN
2343                BUF_SWAP_32BIT |
2344 #endif
2345                RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
2346
2347         /* Reset cp */
2348         WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
2349         RREG32(GRBM_SOFT_RESET);
2350         mdelay(15);
2351         WREG32(GRBM_SOFT_RESET, 0);
2352
2353         WREG32(CP_ME_RAM_WADDR, 0);
2354
2355         fw_data = (const __be32 *)rdev->me_fw->data;
2356         WREG32(CP_ME_RAM_WADDR, 0);
2357         for (i = 0; i < R600_PM4_UCODE_SIZE * 3; i++)
2358                 WREG32(CP_ME_RAM_DATA,
2359                        be32_to_cpup(fw_data++));
2360
2361         fw_data = (const __be32 *)rdev->pfp_fw->data;
2362         WREG32(CP_PFP_UCODE_ADDR, 0);
2363         for (i = 0; i < R600_PFP_UCODE_SIZE; i++)
2364                 WREG32(CP_PFP_UCODE_DATA,
2365                        be32_to_cpup(fw_data++));
2366
2367         WREG32(CP_PFP_UCODE_ADDR, 0);
2368         WREG32(CP_ME_RAM_WADDR, 0);
2369         WREG32(CP_ME_RAM_RADDR, 0);
2370         return 0;
2371 }
2372
2373 int r600_cp_start(struct radeon_device *rdev)
2374 {
2375         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2376         int r;
2377         uint32_t cp_me;
2378
2379         r = radeon_ring_lock(rdev, ring, 7);
2380         if (r) {
2381                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
2382                 return r;
2383         }
2384         radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
2385         radeon_ring_write(ring, 0x1);
2386         if (rdev->family >= CHIP_RV770) {
2387                 radeon_ring_write(ring, 0x0);
2388                 radeon_ring_write(ring, rdev->config.rv770.max_hw_contexts - 1);
2389         } else {
2390                 radeon_ring_write(ring, 0x3);
2391                 radeon_ring_write(ring, rdev->config.r600.max_hw_contexts - 1);
2392         }
2393         radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
2394         radeon_ring_write(ring, 0);
2395         radeon_ring_write(ring, 0);
2396         radeon_ring_unlock_commit(rdev, ring);
2397
2398         cp_me = 0xff;
2399         WREG32(R_0086D8_CP_ME_CNTL, cp_me);
2400         return 0;
2401 }
2402
2403 int r600_cp_resume(struct radeon_device *rdev)
2404 {
2405         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2406         u32 tmp;
2407         u32 rb_bufsz;
2408         int r;
2409
2410         /* Reset cp */
2411         WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
2412         RREG32(GRBM_SOFT_RESET);
2413         mdelay(15);
2414         WREG32(GRBM_SOFT_RESET, 0);
2415
2416         /* Set ring buffer size */
2417         rb_bufsz = order_base_2(ring->ring_size / 8);
2418         tmp = (order_base_2(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
2419 #ifdef __BIG_ENDIAN
2420         tmp |= BUF_SWAP_32BIT;
2421 #endif
2422         WREG32(CP_RB_CNTL, tmp);
2423         WREG32(CP_SEM_WAIT_TIMER, 0x0);
2424
2425         /* Set the write pointer delay */
2426         WREG32(CP_RB_WPTR_DELAY, 0);
2427
2428         /* Initialize the ring buffer's read and write pointers */
2429         WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
2430         WREG32(CP_RB_RPTR_WR, 0);
2431         ring->wptr = 0;
2432         WREG32(CP_RB_WPTR, ring->wptr);
2433
2434         /* set the wb address whether it's enabled or not */
2435         WREG32(CP_RB_RPTR_ADDR,
2436                ((rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC));
2437         WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
2438         WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
2439
2440         if (rdev->wb.enabled)
2441                 WREG32(SCRATCH_UMSK, 0xff);
2442         else {
2443                 tmp |= RB_NO_UPDATE;
2444                 WREG32(SCRATCH_UMSK, 0);
2445         }
2446
2447         mdelay(1);
2448         WREG32(CP_RB_CNTL, tmp);
2449
2450         WREG32(CP_RB_BASE, ring->gpu_addr >> 8);
2451         WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
2452
2453         ring->rptr = RREG32(CP_RB_RPTR);
2454
2455         r600_cp_start(rdev);
2456         ring->ready = true;
2457         r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, ring);
2458         if (r) {
2459                 ring->ready = false;
2460                 return r;
2461         }
2462         return 0;
2463 }
2464
2465 void r600_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size)
2466 {
2467         u32 rb_bufsz;
2468         int r;
2469
2470         /* Align ring size */
2471         rb_bufsz = order_base_2(ring_size / 8);
2472         ring_size = (1 << (rb_bufsz + 1)) * 4;
2473         ring->ring_size = ring_size;
2474         ring->align_mask = 16 - 1;
2475
2476         if (radeon_ring_supports_scratch_reg(rdev, ring)) {
2477                 r = radeon_scratch_get(rdev, &ring->rptr_save_reg);
2478                 if (r) {
2479                         DRM_ERROR("failed to get scratch reg for rptr save (%d).\n", r);
2480                         ring->rptr_save_reg = 0;
2481                 }
2482         }
2483 }
2484
2485 void r600_cp_fini(struct radeon_device *rdev)
2486 {
2487         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2488         r600_cp_stop(rdev);
2489         radeon_ring_fini(rdev, ring);
2490         radeon_scratch_free(rdev, ring->rptr_save_reg);
2491 }
2492
2493 /*
2494  * GPU scratch registers helpers function.
2495  */
2496 void r600_scratch_init(struct radeon_device *rdev)
2497 {
2498         int i;
2499
2500         rdev->scratch.num_reg = 7;
2501         rdev->scratch.reg_base = SCRATCH_REG0;
2502         for (i = 0; i < rdev->scratch.num_reg; i++) {
2503                 rdev->scratch.free[i] = true;
2504                 rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
2505         }
2506 }
2507
2508 int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
2509 {
2510         uint32_t scratch;
2511         uint32_t tmp = 0;
2512         unsigned i;
2513         int r;
2514
2515         r = radeon_scratch_get(rdev, &scratch);
2516         if (r) {
2517                 DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r);
2518                 return r;
2519         }
2520         WREG32(scratch, 0xCAFEDEAD);
2521         r = radeon_ring_lock(rdev, ring, 3);
2522         if (r) {
2523                 DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n", ring->idx, r);
2524                 radeon_scratch_free(rdev, scratch);
2525                 return r;
2526         }
2527         radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2528         radeon_ring_write(ring, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
2529         radeon_ring_write(ring, 0xDEADBEEF);
2530         radeon_ring_unlock_commit(rdev, ring);
2531         for (i = 0; i < rdev->usec_timeout; i++) {
2532                 tmp = RREG32(scratch);
2533                 if (tmp == 0xDEADBEEF)
2534                         break;
2535                 DRM_UDELAY(1);
2536         }
2537         if (i < rdev->usec_timeout) {
2538                 DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
2539         } else {
2540                 DRM_ERROR("radeon: ring %d test failed (scratch(0x%04X)=0x%08X)\n",
2541                           ring->idx, scratch, tmp);
2542                 r = -EINVAL;
2543         }
2544         radeon_scratch_free(rdev, scratch);
2545         return r;
2546 }
2547
2548 /*
2549  * CP fences/semaphores
2550  */
2551
2552 void r600_fence_ring_emit(struct radeon_device *rdev,
2553                           struct radeon_fence *fence)
2554 {
2555         struct radeon_ring *ring = &rdev->ring[fence->ring];
2556
2557         if (rdev->wb.use_event) {
2558                 u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
2559                 /* flush read cache over gart */
2560                 radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
2561                 radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
2562                                         PACKET3_VC_ACTION_ENA |
2563                                         PACKET3_SH_ACTION_ENA);
2564                 radeon_ring_write(ring, 0xFFFFFFFF);
2565                 radeon_ring_write(ring, 0);
2566                 radeon_ring_write(ring, 10); /* poll interval */
2567                 /* EVENT_WRITE_EOP - flush caches, send int */
2568                 radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
2569                 radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
2570                 radeon_ring_write(ring, addr & 0xffffffff);
2571                 radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
2572                 radeon_ring_write(ring, fence->seq);
2573                 radeon_ring_write(ring, 0);
2574         } else {
2575                 /* flush read cache over gart */
2576                 radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
2577                 radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
2578                                         PACKET3_VC_ACTION_ENA |
2579                                         PACKET3_SH_ACTION_ENA);
2580                 radeon_ring_write(ring, 0xFFFFFFFF);
2581                 radeon_ring_write(ring, 0);
2582                 radeon_ring_write(ring, 10); /* poll interval */
2583                 radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE, 0));
2584                 radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0));
2585                 /* wait for 3D idle clean */
2586                 radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2587                 radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2588                 radeon_ring_write(ring, WAIT_3D_IDLE_bit | WAIT_3D_IDLECLEAN_bit);
2589                 /* Emit fence sequence & fire IRQ */
2590                 radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2591                 radeon_ring_write(ring, ((rdev->fence_drv[fence->ring].scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
2592                 radeon_ring_write(ring, fence->seq);
2593                 /* CP_INTERRUPT packet 3 no longer exists, use packet 0 */
2594                 radeon_ring_write(ring, PACKET0(CP_INT_STATUS, 0));
2595                 radeon_ring_write(ring, RB_INT_STAT);
2596         }
2597 }
2598
2599 void r600_semaphore_ring_emit(struct radeon_device *rdev,
2600                               struct radeon_ring *ring,
2601                               struct radeon_semaphore *semaphore,
2602                               bool emit_wait)
2603 {
2604         uint64_t addr = semaphore->gpu_addr;
2605         unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
2606
2607         if (rdev->family < CHIP_CAYMAN)
2608                 sel |= PACKET3_SEM_WAIT_ON_SIGNAL;
2609
2610         radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
2611         radeon_ring_write(ring, addr & 0xffffffff);
2612         radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
2613 }
2614
2615 /**
2616  * r600_copy_cpdma - copy pages using the CP DMA engine
2617  *
2618  * @rdev: radeon_device pointer
2619  * @src_offset: src GPU address
2620  * @dst_offset: dst GPU address
2621  * @num_gpu_pages: number of GPU pages to xfer
2622  * @fence: radeon fence object
2623  *
2624  * Copy GPU paging using the CP DMA engine (r6xx+).
2625  * Used by the radeon ttm implementation to move pages if
2626  * registered as the asic copy callback.
2627  */
2628 int r600_copy_cpdma(struct radeon_device *rdev,
2629                     uint64_t src_offset, uint64_t dst_offset,
2630                     unsigned num_gpu_pages,
2631                     struct radeon_fence **fence)
2632 {
2633         struct radeon_semaphore *sem = NULL;
2634         int ring_index = rdev->asic->copy.blit_ring_index;
2635         struct radeon_ring *ring = &rdev->ring[ring_index];
2636         u32 size_in_bytes, cur_size_in_bytes, tmp;
2637         int i, num_loops;
2638         int r = 0;
2639
2640         r = radeon_semaphore_create(rdev, &sem);
2641         if (r) {
2642                 DRM_ERROR("radeon: moving bo (%d).\n", r);
2643                 return r;
2644         }
2645
2646         size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
2647         num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff);
2648         r = radeon_ring_lock(rdev, ring, num_loops * 6 + 24);
2649         if (r) {
2650                 DRM_ERROR("radeon: moving bo (%d).\n", r);
2651                 radeon_semaphore_free(rdev, &sem, NULL);
2652                 return r;
2653         }
2654
2655         if (radeon_fence_need_sync(*fence, ring->idx)) {
2656                 radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
2657                                             ring->idx);
2658                 radeon_fence_note_sync(*fence, ring->idx);
2659         } else {
2660                 radeon_semaphore_free(rdev, &sem, NULL);
2661         }
2662
2663         radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2664         radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2665         radeon_ring_write(ring, WAIT_3D_IDLE_bit);
2666         for (i = 0; i < num_loops; i++) {
2667                 cur_size_in_bytes = size_in_bytes;
2668                 if (cur_size_in_bytes > 0x1fffff)
2669                         cur_size_in_bytes = 0x1fffff;
2670                 size_in_bytes -= cur_size_in_bytes;
2671                 tmp = upper_32_bits(src_offset) & 0xff;
2672                 if (size_in_bytes == 0)
2673                         tmp |= PACKET3_CP_DMA_CP_SYNC;
2674                 radeon_ring_write(ring, PACKET3(PACKET3_CP_DMA, 4));
2675                 radeon_ring_write(ring, src_offset & 0xffffffff);
2676                 radeon_ring_write(ring, tmp);
2677                 radeon_ring_write(ring, dst_offset & 0xffffffff);
2678                 radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
2679                 radeon_ring_write(ring, cur_size_in_bytes);
2680                 src_offset += cur_size_in_bytes;
2681                 dst_offset += cur_size_in_bytes;
2682         }
2683         radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2684         radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2685         radeon_ring_write(ring, WAIT_CP_DMA_IDLE_bit);
2686
2687         r = radeon_fence_emit(rdev, fence, ring->idx);
2688         if (r) {
2689                 radeon_ring_unlock_undo(rdev, ring);
2690                 return r;
2691         }
2692
2693         radeon_ring_unlock_commit(rdev, ring);
2694         radeon_semaphore_free(rdev, &sem, *fence);
2695
2696         return r;
2697 }
2698
2699 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
2700                          uint32_t tiling_flags, uint32_t pitch,
2701                          uint32_t offset, uint32_t obj_size)
2702 {
2703         /* FIXME: implement */
2704         return 0;
2705 }
2706
2707 void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
2708 {
2709         /* FIXME: implement */
2710 }
2711
2712 static int r600_startup(struct radeon_device *rdev)
2713 {
2714         struct radeon_ring *ring;
2715         int r;
2716
2717         /* enable pcie gen2 link */
2718         r600_pcie_gen2_enable(rdev);
2719
2720         /* scratch needs to be initialized before MC */
2721         r = r600_vram_scratch_init(rdev);
2722         if (r)
2723                 return r;
2724
2725         r600_mc_program(rdev);
2726
2727         if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
2728                 r = r600_init_microcode(rdev);
2729                 if (r) {
2730                         DRM_ERROR("Failed to load firmware!\n");
2731                         return r;
2732                 }
2733         }
2734
2735         if (rdev->flags & RADEON_IS_AGP) {
2736                 r600_agp_enable(rdev);
2737         } else {
2738                 r = r600_pcie_gart_enable(rdev);
2739                 if (r)
2740                         return r;
2741         }
2742         r600_gpu_init(rdev);
2743
2744         /* allocate wb buffer */
2745         r = radeon_wb_init(rdev);
2746         if (r)
2747                 return r;
2748
2749         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
2750         if (r) {
2751                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
2752                 return r;
2753         }
2754
2755         r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
2756         if (r) {
2757                 dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
2758                 return r;
2759         }
2760
2761         /* Enable IRQ */
2762         if (!rdev->irq.installed) {
2763                 r = radeon_irq_kms_init(rdev);
2764                 if (r)
2765                         return r;
2766         }
2767
2768         r = r600_irq_init(rdev);
2769         if (r) {
2770                 DRM_ERROR("radeon: IH init failed (%d).\n", r);
2771                 radeon_irq_kms_fini(rdev);
2772                 return r;
2773         }
2774         r600_irq_set(rdev);
2775
2776         ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2777         r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
2778                              R600_CP_RB_RPTR, R600_CP_RB_WPTR,
2779                              RADEON_CP_PACKET2);
2780         if (r)
2781                 return r;
2782
2783         ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
2784         r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
2785                              DMA_RB_RPTR, DMA_RB_WPTR,
2786                              DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
2787         if (r)
2788                 return r;
2789
2790         r = r600_cp_load_microcode(rdev);
2791         if (r)
2792                 return r;
2793         r = r600_cp_resume(rdev);
2794         if (r)
2795                 return r;
2796
2797         r = r600_dma_resume(rdev);
2798         if (r)
2799                 return r;
2800
2801         r = radeon_ib_pool_init(rdev);
2802         if (r) {
2803                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
2804                 return r;
2805         }
2806
2807         r = r600_audio_init(rdev);
2808         if (r) {
2809                 DRM_ERROR("radeon: audio init failed\n");
2810                 return r;
2811         }
2812
2813         return 0;
2814 }
2815
2816 void r600_vga_set_state(struct radeon_device *rdev, bool state)
2817 {
2818         uint32_t temp;
2819
2820         temp = RREG32(CONFIG_CNTL);
2821         if (state == false) {
2822                 temp &= ~(1<<0);
2823                 temp |= (1<<1);
2824         } else {
2825                 temp &= ~(1<<1);
2826         }
2827         WREG32(CONFIG_CNTL, temp);
2828 }
2829
2830 int r600_resume(struct radeon_device *rdev)
2831 {
2832         int r;
2833
2834         /* Do not reset GPU before posting, on r600 hw unlike on r500 hw,
2835          * posting will perform necessary task to bring back GPU into good
2836          * shape.
2837          */
2838         /* post card */
2839         atom_asic_init(rdev->mode_info.atom_context);
2840
2841         rdev->accel_working = true;
2842         r = r600_startup(rdev);
2843         if (r) {
2844                 DRM_ERROR("r600 startup failed on resume\n");
2845                 rdev->accel_working = false;
2846                 return r;
2847         }
2848
2849         return r;
2850 }
2851
2852 int r600_suspend(struct radeon_device *rdev)
2853 {
2854         r600_audio_fini(rdev);
2855         r600_cp_stop(rdev);
2856         r600_dma_stop(rdev);
2857         r600_irq_suspend(rdev);
2858         radeon_wb_disable(rdev);
2859         r600_pcie_gart_disable(rdev);
2860
2861         return 0;
2862 }
2863
2864 /* Plan is to move initialization in that function and use
2865  * helper function so that radeon_device_init pretty much
2866  * do nothing more than calling asic specific function. This
2867  * should also allow to remove a bunch of callback function
2868  * like vram_info.
2869  */
2870 int r600_init(struct radeon_device *rdev)
2871 {
2872         int r;
2873
2874         if (r600_debugfs_mc_info_init(rdev)) {
2875                 DRM_ERROR("Failed to register debugfs file for mc !\n");
2876         }
2877         /* Read BIOS */
2878         if (!radeon_get_bios(rdev)) {
2879                 if (ASIC_IS_AVIVO(rdev))
2880                         return -EINVAL;
2881         }
2882         /* Must be an ATOMBIOS */
2883         if (!rdev->is_atom_bios) {
2884                 dev_err(rdev->dev, "Expecting atombios for R600 GPU\n");
2885                 return -EINVAL;
2886         }
2887         r = radeon_atombios_init(rdev);
2888         if (r)
2889                 return r;
2890         /* Post card if necessary */
2891         if (!radeon_card_posted(rdev)) {
2892                 if (!rdev->bios) {
2893                         dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
2894                         return -EINVAL;
2895                 }
2896                 DRM_INFO("GPU not posted. posting now...\n");
2897                 atom_asic_init(rdev->mode_info.atom_context);
2898         }
2899         /* Initialize scratch registers */
2900         r600_scratch_init(rdev);
2901         /* Initialize surface registers */
2902         radeon_surface_init(rdev);
2903         /* Initialize clocks */
2904         radeon_get_clock_info(rdev->ddev);
2905         /* Fence driver */
2906         r = radeon_fence_driver_init(rdev);
2907         if (r)
2908                 return r;
2909         if (rdev->flags & RADEON_IS_AGP) {
2910                 r = radeon_agp_init(rdev);
2911                 if (r)
2912                         radeon_agp_disable(rdev);
2913         }
2914         r = r600_mc_init(rdev);
2915         if (r)
2916                 return r;
2917         /* Memory manager */
2918         r = radeon_bo_init(rdev);
2919         if (r)
2920                 return r;
2921
2922         rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
2923         r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
2924
2925         rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
2926         r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
2927
2928         rdev->ih.ring_obj = NULL;
2929         r600_ih_ring_init(rdev, 64 * 1024);
2930
2931         r = r600_pcie_gart_init(rdev);
2932         if (r)
2933                 return r;
2934
2935         rdev->accel_working = true;
2936         r = r600_startup(rdev);
2937         if (r) {
2938                 dev_err(rdev->dev, "disabling GPU acceleration\n");
2939                 r600_cp_fini(rdev);
2940                 r600_dma_fini(rdev);
2941                 r600_irq_fini(rdev);
2942                 radeon_wb_fini(rdev);
2943                 radeon_ib_pool_fini(rdev);
2944                 radeon_irq_kms_fini(rdev);
2945                 r600_pcie_gart_fini(rdev);
2946                 rdev->accel_working = false;
2947         }
2948
2949         return 0;
2950 }
2951
2952 void r600_fini(struct radeon_device *rdev)
2953 {
2954         r600_audio_fini(rdev);
2955         r600_cp_fini(rdev);
2956         r600_dma_fini(rdev);
2957         r600_irq_fini(rdev);
2958         radeon_wb_fini(rdev);
2959         radeon_ib_pool_fini(rdev);
2960         radeon_irq_kms_fini(rdev);
2961         r600_pcie_gart_fini(rdev);
2962         r600_vram_scratch_fini(rdev);
2963         radeon_agp_fini(rdev);
2964         radeon_gem_fini(rdev);
2965         radeon_fence_driver_fini(rdev);
2966         radeon_bo_fini(rdev);
2967         radeon_atombios_fini(rdev);
2968         kfree(rdev->bios);
2969         rdev->bios = NULL;
2970 }
2971
2972
2973 /*
2974  * CS stuff
2975  */
2976 void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
2977 {
2978         struct radeon_ring *ring = &rdev->ring[ib->ring];
2979         u32 next_rptr;
2980
2981         if (ring->rptr_save_reg) {
2982                 next_rptr = ring->wptr + 3 + 4;
2983                 radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2984                 radeon_ring_write(ring, ((ring->rptr_save_reg -
2985                                          PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
2986                 radeon_ring_write(ring, next_rptr);
2987         } else if (rdev->wb.enabled) {
2988                 next_rptr = ring->wptr + 5 + 4;
2989                 radeon_ring_write(ring, PACKET3(PACKET3_MEM_WRITE, 3));
2990                 radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
2991                 radeon_ring_write(ring, (upper_32_bits(ring->next_rptr_gpu_addr) & 0xff) | (1 << 18));
2992                 radeon_ring_write(ring, next_rptr);
2993                 radeon_ring_write(ring, 0);
2994         }
2995
2996         radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
2997         radeon_ring_write(ring,
2998 #ifdef __BIG_ENDIAN
2999                           (2 << 0) |
3000 #endif
3001                           (ib->gpu_addr & 0xFFFFFFFC));
3002         radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
3003         radeon_ring_write(ring, ib->length_dw);
3004 }
3005
3006 int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
3007 {
3008         struct radeon_ib ib;
3009         uint32_t scratch;
3010         uint32_t tmp = 0;
3011         unsigned i;
3012         int r;
3013
3014         r = radeon_scratch_get(rdev, &scratch);
3015         if (r) {
3016                 DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r);
3017                 return r;
3018         }
3019         WREG32(scratch, 0xCAFEDEAD);
3020         r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
3021         if (r) {
3022                 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
3023                 goto free_scratch;
3024         }
3025         ib.ptr[0] = PACKET3(PACKET3_SET_CONFIG_REG, 1);
3026         ib.ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
3027         ib.ptr[2] = 0xDEADBEEF;
3028         ib.length_dw = 3;
3029         r = radeon_ib_schedule(rdev, &ib, NULL);
3030         if (r) {
3031                 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
3032                 goto free_ib;
3033         }
3034         r = radeon_fence_wait(ib.fence, false);
3035         if (r) {
3036                 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
3037                 goto free_ib;
3038         }
3039         for (i = 0; i < rdev->usec_timeout; i++) {
3040                 tmp = RREG32(scratch);
3041                 if (tmp == 0xDEADBEEF)
3042                         break;
3043                 DRM_UDELAY(1);
3044         }
3045         if (i < rdev->usec_timeout) {
3046                 DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
3047         } else {
3048                 DRM_ERROR("radeon: ib test failed (scratch(0x%04X)=0x%08X)\n",
3049                           scratch, tmp);
3050                 r = -EINVAL;
3051         }
3052 free_ib:
3053         radeon_ib_free(rdev, &ib);
3054 free_scratch:
3055         radeon_scratch_free(rdev, scratch);
3056         return r;
3057 }
3058
3059 /*
3060  * Interrupts
3061  *
3062  * Interrupts use a ring buffer on r6xx/r7xx hardware.  It works pretty
3063  * the same as the CP ring buffer, but in reverse.  Rather than the CPU
3064  * writing to the ring and the GPU consuming, the GPU writes to the ring
3065  * and host consumes.  As the host irq handler processes interrupts, it
3066  * increments the rptr.  When the rptr catches up with the wptr, all the
3067  * current interrupts have been processed.
3068  */
3069
3070 void r600_ih_ring_init(struct radeon_device *rdev, unsigned ring_size)
3071 {
3072         u32 rb_bufsz;
3073
3074         /* Align ring size */
3075         rb_bufsz = order_base_2(ring_size / 4);
3076         ring_size = (1 << rb_bufsz) * 4;
3077         rdev->ih.ring_size = ring_size;
3078         rdev->ih.ptr_mask = rdev->ih.ring_size - 1;
3079         rdev->ih.rptr = 0;
3080 }
3081
3082 int r600_ih_ring_alloc(struct radeon_device *rdev)
3083 {
3084         int r;
3085
3086         /* Allocate ring buffer */
3087         if (rdev->ih.ring_obj == NULL) {
3088                 r = radeon_bo_create(rdev, rdev->ih.ring_size,
3089                                      PAGE_SIZE, true,
3090                                      RADEON_GEM_DOMAIN_GTT,
3091                                      NULL, &rdev->ih.ring_obj);
3092                 if (r) {
3093                         DRM_ERROR("radeon: failed to create ih ring buffer (%d).\n", r);
3094                         return r;
3095                 }
3096                 r = radeon_bo_reserve(rdev->ih.ring_obj, false);
3097                 if (unlikely(r != 0))
3098                         return r;
3099                 r = radeon_bo_pin(rdev->ih.ring_obj,
3100                                   RADEON_GEM_DOMAIN_GTT,
3101                                   &rdev->ih.gpu_addr);
3102                 if (r) {
3103                         radeon_bo_unreserve(rdev->ih.ring_obj);
3104                         DRM_ERROR("radeon: failed to pin ih ring buffer (%d).\n", r);
3105                         return r;
3106                 }
3107                 r = radeon_bo_kmap(rdev->ih.ring_obj,
3108                                    (void **)&rdev->ih.ring);
3109                 radeon_bo_unreserve(rdev->ih.ring_obj);
3110                 if (r) {
3111                         DRM_ERROR("radeon: failed to map ih ring buffer (%d).\n", r);
3112                         return r;
3113                 }
3114         }
3115         return 0;
3116 }
3117
3118 void r600_ih_ring_fini(struct radeon_device *rdev)
3119 {
3120         int r;
3121         if (rdev->ih.ring_obj) {
3122                 r = radeon_bo_reserve(rdev->ih.ring_obj, false);
3123                 if (likely(r == 0)) {
3124                         radeon_bo_kunmap(rdev->ih.ring_obj);
3125                         radeon_bo_unpin(rdev->ih.ring_obj);
3126                         radeon_bo_unreserve(rdev->ih.ring_obj);
3127                 }
3128                 radeon_bo_unref(&rdev->ih.ring_obj);
3129                 rdev->ih.ring = NULL;
3130                 rdev->ih.ring_obj = NULL;
3131         }
3132 }
3133
3134 void r600_rlc_stop(struct radeon_device *rdev)
3135 {
3136
3137         if ((rdev->family >= CHIP_RV770) &&
3138             (rdev->family <= CHIP_RV740)) {
3139                 /* r7xx asics need to soft reset RLC before halting */
3140                 WREG32(SRBM_SOFT_RESET, SOFT_RESET_RLC);
3141                 RREG32(SRBM_SOFT_RESET);
3142                 mdelay(15);
3143                 WREG32(SRBM_SOFT_RESET, 0);
3144                 RREG32(SRBM_SOFT_RESET);
3145         }
3146
3147         WREG32(RLC_CNTL, 0);
3148 }
3149
3150 static void r600_rlc_start(struct radeon_device *rdev)
3151 {
3152         WREG32(RLC_CNTL, RLC_ENABLE);
3153 }
3154
3155 static int r600_rlc_resume(struct radeon_device *rdev)
3156 {
3157         u32 i;
3158         const __be32 *fw_data;
3159
3160         if (!rdev->rlc_fw)
3161                 return -EINVAL;
3162
3163         r600_rlc_stop(rdev);
3164
3165         WREG32(RLC_HB_CNTL, 0);
3166
3167         WREG32(RLC_HB_BASE, 0);
3168         WREG32(RLC_HB_RPTR, 0);
3169         WREG32(RLC_HB_WPTR, 0);
3170         WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
3171         WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
3172         WREG32(RLC_MC_CNTL, 0);
3173         WREG32(RLC_UCODE_CNTL, 0);
3174
3175         fw_data = (const __be32 *)rdev->rlc_fw->data;
3176         if (rdev->family >= CHIP_RV770) {
3177                 for (i = 0; i < R700_RLC_UCODE_SIZE; i++) {
3178                         WREG32(RLC_UCODE_ADDR, i);
3179                         WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
3180                 }
3181         } else {
3182                 for (i = 0; i < R600_RLC_UCODE_SIZE; i++) {
3183                         WREG32(RLC_UCODE_ADDR, i);
3184                         WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
3185                 }
3186         }
3187         WREG32(RLC_UCODE_ADDR, 0);
3188
3189         r600_rlc_start(rdev);
3190
3191         return 0;
3192 }
3193
3194 static void r600_enable_interrupts(struct radeon_device *rdev)
3195 {
3196         u32 ih_cntl = RREG32(IH_CNTL);
3197         u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3198
3199         ih_cntl |= ENABLE_INTR;
3200         ih_rb_cntl |= IH_RB_ENABLE;
3201         WREG32(IH_CNTL, ih_cntl);
3202         WREG32(IH_RB_CNTL, ih_rb_cntl);
3203         rdev->ih.enabled = true;
3204 }
3205
3206 void r600_disable_interrupts(struct radeon_device *rdev)
3207 {
3208         u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3209         u32 ih_cntl = RREG32(IH_CNTL);
3210
3211         ih_rb_cntl &= ~IH_RB_ENABLE;
3212         ih_cntl &= ~ENABLE_INTR;
3213         WREG32(IH_RB_CNTL, ih_rb_cntl);
3214         WREG32(IH_CNTL, ih_cntl);
3215         /* set rptr, wptr to 0 */
3216         WREG32(IH_RB_RPTR, 0);
3217         WREG32(IH_RB_WPTR, 0);
3218         rdev->ih.enabled = false;
3219         rdev->ih.rptr = 0;
3220 }
3221
3222 static void r600_disable_interrupt_state(struct radeon_device *rdev)
3223 {
3224         u32 tmp;
3225
3226         WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
3227         tmp = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
3228         WREG32(DMA_CNTL, tmp);
3229         WREG32(GRBM_INT_CNTL, 0);
3230         WREG32(DxMODE_INT_MASK, 0);
3231         WREG32(D1GRPH_INTERRUPT_CONTROL, 0);
3232         WREG32(D2GRPH_INTERRUPT_CONTROL, 0);
3233         if (ASIC_IS_DCE3(rdev)) {
3234                 WREG32(DCE3_DACA_AUTODETECT_INT_CONTROL, 0);
3235                 WREG32(DCE3_DACB_AUTODETECT_INT_CONTROL, 0);
3236                 tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3237                 WREG32(DC_HPD1_INT_CONTROL, tmp);
3238                 tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3239                 WREG32(DC_HPD2_INT_CONTROL, tmp);
3240                 tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3241                 WREG32(DC_HPD3_INT_CONTROL, tmp);
3242                 tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3243                 WREG32(DC_HPD4_INT_CONTROL, tmp);
3244                 if (ASIC_IS_DCE32(rdev)) {
3245                         tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3246                         WREG32(DC_HPD5_INT_CONTROL, tmp);
3247                         tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3248                         WREG32(DC_HPD6_INT_CONTROL, tmp);
3249                         tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3250                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, tmp);
3251                         tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3252                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, tmp);
3253                 } else {
3254                         tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3255                         WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
3256                         tmp = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3257                         WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, tmp);
3258                 }
3259         } else {
3260                 WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
3261                 WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
3262                 tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3263                 WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
3264                 tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3265                 WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
3266                 tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3267                 WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
3268                 tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3269                 WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
3270                 tmp = RREG32(HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3271                 WREG32(HDMI1_AUDIO_PACKET_CONTROL, tmp);
3272         }
3273 }
3274
3275 int r600_irq_init(struct radeon_device *rdev)
3276 {
3277         int ret = 0;
3278         int rb_bufsz;
3279         u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
3280
3281         /* allocate ring */
3282         ret = r600_ih_ring_alloc(rdev);
3283         if (ret)
3284                 return ret;
3285
3286         /* disable irqs */
3287         r600_disable_interrupts(rdev);
3288
3289         /* init rlc */
3290         if (rdev->family >= CHIP_CEDAR)
3291                 ret = evergreen_rlc_resume(rdev);
3292         else
3293                 ret = r600_rlc_resume(rdev);
3294         if (ret) {
3295                 r600_ih_ring_fini(rdev);
3296                 return ret;
3297         }
3298
3299         /* setup interrupt control */
3300         /* set dummy read address to ring address */
3301         WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
3302         interrupt_cntl = RREG32(INTERRUPT_CNTL);
3303         /* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
3304          * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
3305          */
3306         interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
3307         /* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
3308         interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
3309         WREG32(INTERRUPT_CNTL, interrupt_cntl);
3310
3311         WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
3312         rb_bufsz = order_base_2(rdev->ih.ring_size / 4);
3313
3314         ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
3315                       IH_WPTR_OVERFLOW_CLEAR |
3316                       (rb_bufsz << 1));
3317
3318         if (rdev->wb.enabled)
3319                 ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;
3320
3321         /* set the writeback address whether it's enabled or not */
3322         WREG32(IH_RB_WPTR_ADDR_LO, (rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFFFFFFFC);
3323         WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFF);
3324
3325         WREG32(IH_RB_CNTL, ih_rb_cntl);
3326
3327         /* set rptr, wptr to 0 */
3328         WREG32(IH_RB_RPTR, 0);
3329         WREG32(IH_RB_WPTR, 0);
3330
3331         /* Default settings for IH_CNTL (disabled at first) */
3332         ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10);
3333         /* RPTR_REARM only works if msi's are enabled */
3334         if (rdev->msi_enabled)
3335                 ih_cntl |= RPTR_REARM;
3336         WREG32(IH_CNTL, ih_cntl);
3337
3338         /* force the active interrupt state to all disabled */
3339         if (rdev->family >= CHIP_CEDAR)
3340                 evergreen_disable_interrupt_state(rdev);
3341         else
3342                 r600_disable_interrupt_state(rdev);
3343
3344         /* at this point everything should be setup correctly to enable master */
3345         pci_set_master(rdev->pdev);
3346
3347         /* enable irqs */
3348         r600_enable_interrupts(rdev);
3349
3350         return ret;
3351 }
3352
3353 void r600_irq_suspend(struct radeon_device *rdev)
3354 {
3355         r600_irq_disable(rdev);
3356         r600_rlc_stop(rdev);
3357 }
3358
3359 void r600_irq_fini(struct radeon_device *rdev)
3360 {
3361         r600_irq_suspend(rdev);
3362         r600_ih_ring_fini(rdev);
3363 }
3364
3365 int r600_irq_set(struct radeon_device *rdev)
3366 {
3367         u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
3368         u32 mode_int = 0;
3369         u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
3370         u32 grbm_int_cntl = 0;
3371         u32 hdmi0, hdmi1;
3372         u32 d1grph = 0, d2grph = 0;
3373         u32 dma_cntl;
3374         u32 thermal_int = 0;
3375
3376         if (!rdev->irq.installed) {
3377                 WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
3378                 return -EINVAL;
3379         }
3380         /* don't enable anything if the ih is disabled */
3381         if (!rdev->ih.enabled) {
3382                 r600_disable_interrupts(rdev);
3383                 /* force the active interrupt state to all disabled */
3384                 r600_disable_interrupt_state(rdev);
3385                 return 0;
3386         }
3387
3388         if (ASIC_IS_DCE3(rdev)) {
3389                 hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
3390                 hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
3391                 hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
3392                 hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
3393                 if (ASIC_IS_DCE32(rdev)) {
3394                         hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
3395                         hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
3396                         hdmi0 = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
3397                         hdmi1 = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
3398                 } else {
3399                         hdmi0 = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3400                         hdmi1 = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3401                 }
3402         } else {
3403                 hpd1 = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & ~DC_HPDx_INT_EN;
3404                 hpd2 = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & ~DC_HPDx_INT_EN;
3405                 hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
3406                 hdmi0 = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3407                 hdmi1 = RREG32(HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3408         }
3409
3410         dma_cntl = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
3411
3412         if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
3413                 thermal_int = RREG32(CG_THERMAL_INT) &
3414                         ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
3415         } else if (rdev->family >= CHIP_RV770) {
3416                 thermal_int = RREG32(RV770_CG_THERMAL_INT) &
3417                         ~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
3418         }
3419         if (rdev->irq.dpm_thermal) {
3420                 DRM_DEBUG("dpm thermal\n");
3421                 thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
3422         }
3423
3424         if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
3425                 DRM_DEBUG("r600_irq_set: sw int\n");
3426                 cp_int_cntl |= RB_INT_ENABLE;
3427                 cp_int_cntl |= TIME_STAMP_INT_ENABLE;
3428         }
3429
3430         if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
3431                 DRM_DEBUG("r600_irq_set: sw int dma\n");
3432                 dma_cntl |= TRAP_ENABLE;
3433         }
3434
3435         if (rdev->irq.crtc_vblank_int[0] ||
3436             atomic_read(&rdev->irq.pflip[0])) {
3437                 DRM_DEBUG("r600_irq_set: vblank 0\n");
3438                 mode_int |= D1MODE_VBLANK_INT_MASK;
3439         }
3440         if (rdev->irq.crtc_vblank_int[1] ||
3441             atomic_read(&rdev->irq.pflip[1])) {
3442                 DRM_DEBUG("r600_irq_set: vblank 1\n");
3443                 mode_int |= D2MODE_VBLANK_INT_MASK;
3444         }
3445         if (rdev->irq.hpd[0]) {
3446                 DRM_DEBUG("r600_irq_set: hpd 1\n");
3447                 hpd1 |= DC_HPDx_INT_EN;
3448         }
3449         if (rdev->irq.hpd[1]) {
3450                 DRM_DEBUG("r600_irq_set: hpd 2\n");
3451                 hpd2 |= DC_HPDx_INT_EN;
3452         }
3453         if (rdev->irq.hpd[2]) {
3454                 DRM_DEBUG("r600_irq_set: hpd 3\n");
3455                 hpd3 |= DC_HPDx_INT_EN;
3456         }
3457         if (rdev->irq.hpd[3]) {
3458                 DRM_DEBUG("r600_irq_set: hpd 4\n");
3459                 hpd4 |= DC_HPDx_INT_EN;
3460         }
3461         if (rdev->irq.hpd[4]) {
3462                 DRM_DEBUG("r600_irq_set: hpd 5\n");
3463                 hpd5 |= DC_HPDx_INT_EN;
3464         }
3465         if (rdev->irq.hpd[5]) {
3466                 DRM_DEBUG("r600_irq_set: hpd 6\n");
3467                 hpd6 |= DC_HPDx_INT_EN;
3468         }
3469         if (rdev->irq.afmt[0]) {
3470                 DRM_DEBUG("r600_irq_set: hdmi 0\n");
3471                 hdmi0 |= HDMI0_AZ_FORMAT_WTRIG_MASK;
3472         }
3473         if (rdev->irq.afmt[1]) {
3474                 DRM_DEBUG("r600_irq_set: hdmi 0\n");
3475                 hdmi1 |= HDMI0_AZ_FORMAT_WTRIG_MASK;
3476         }
3477
3478         WREG32(CP_INT_CNTL, cp_int_cntl);
3479         WREG32(DMA_CNTL, dma_cntl);
3480         WREG32(DxMODE_INT_MASK, mode_int);
3481         WREG32(D1GRPH_INTERRUPT_CONTROL, d1grph);
3482         WREG32(D2GRPH_INTERRUPT_CONTROL, d2grph);
3483         WREG32(GRBM_INT_CNTL, grbm_int_cntl);
3484         if (ASIC_IS_DCE3(rdev)) {
3485                 WREG32(DC_HPD1_INT_CONTROL, hpd1);
3486                 WREG32(DC_HPD2_INT_CONTROL, hpd2);
3487                 WREG32(DC_HPD3_INT_CONTROL, hpd3);
3488                 WREG32(DC_HPD4_INT_CONTROL, hpd4);
3489                 if (ASIC_IS_DCE32(rdev)) {
3490                         WREG32(DC_HPD5_INT_CONTROL, hpd5);
3491                         WREG32(DC_HPD6_INT_CONTROL, hpd6);
3492                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, hdmi0);
3493                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, hdmi1);
3494                 } else {
3495                         WREG32(HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
3496                         WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, hdmi1);
3497                 }
3498         } else {
3499                 WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
3500                 WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
3501                 WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, hpd3);
3502                 WREG32(HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
3503                 WREG32(HDMI1_AUDIO_PACKET_CONTROL, hdmi1);
3504         }
3505         if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
3506                 WREG32(CG_THERMAL_INT, thermal_int);
3507         } else if (rdev->family >= CHIP_RV770) {
3508                 WREG32(RV770_CG_THERMAL_INT, thermal_int);
3509         }
3510
3511         return 0;
3512 }
3513
3514 static void r600_irq_ack(struct radeon_device *rdev)
3515 {
3516         u32 tmp;
3517
3518         if (ASIC_IS_DCE3(rdev)) {
3519                 rdev->irq.stat_regs.r600.disp_int = RREG32(DCE3_DISP_INTERRUPT_STATUS);
3520                 rdev->irq.stat_regs.r600.disp_int_cont = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE);
3521                 rdev->irq.stat_regs.r600.disp_int_cont2 = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE2);
3522                 if (ASIC_IS_DCE32(rdev)) {
3523                         rdev->irq.stat_regs.r600.hdmi0_status = RREG32(AFMT_STATUS + DCE3_HDMI_OFFSET0);
3524                         rdev->irq.stat_regs.r600.hdmi1_status = RREG32(AFMT_STATUS + DCE3_HDMI_OFFSET1);
3525                 } else {
3526                         rdev->irq.stat_regs.r600.hdmi0_status = RREG32(HDMI0_STATUS);
3527                         rdev->irq.stat_regs.r600.hdmi1_status = RREG32(DCE3_HDMI1_STATUS);
3528                 }
3529         } else {
3530                 rdev->irq.stat_regs.r600.disp_int = RREG32(DISP_INTERRUPT_STATUS);
3531                 rdev->irq.stat_regs.r600.disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
3532                 rdev->irq.stat_regs.r600.disp_int_cont2 = 0;
3533                 rdev->irq.stat_regs.r600.hdmi0_status = RREG32(HDMI0_STATUS);
3534                 rdev->irq.stat_regs.r600.hdmi1_status = RREG32(HDMI1_STATUS);
3535         }
3536         rdev->irq.stat_regs.r600.d1grph_int = RREG32(D1GRPH_INTERRUPT_STATUS);
3537         rdev->irq.stat_regs.r600.d2grph_int = RREG32(D2GRPH_INTERRUPT_STATUS);
3538
3539         if (rdev->irq.stat_regs.r600.d1grph_int & DxGRPH_PFLIP_INT_OCCURRED)
3540                 WREG32(D1GRPH_INTERRUPT_STATUS, DxGRPH_PFLIP_INT_CLEAR);
3541         if (rdev->irq.stat_regs.r600.d2grph_int & DxGRPH_PFLIP_INT_OCCURRED)
3542                 WREG32(D2GRPH_INTERRUPT_STATUS, DxGRPH_PFLIP_INT_CLEAR);
3543         if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT)
3544                 WREG32(D1MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
3545         if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT)
3546                 WREG32(D1MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
3547         if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT)
3548                 WREG32(D2MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
3549         if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT)
3550                 WREG32(D2MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
3551         if (rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT) {
3552                 if (ASIC_IS_DCE3(rdev)) {
3553                         tmp = RREG32(DC_HPD1_INT_CONTROL);
3554                         tmp |= DC_HPDx_INT_ACK;
3555                         WREG32(DC_HPD1_INT_CONTROL, tmp);
3556                 } else {
3557                         tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
3558                         tmp |= DC_HPDx_INT_ACK;
3559                         WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
3560                 }
3561         }
3562         if (rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT) {
3563                 if (ASIC_IS_DCE3(rdev)) {
3564                         tmp = RREG32(DC_HPD2_INT_CONTROL);
3565                         tmp |= DC_HPDx_INT_ACK;
3566                         WREG32(DC_HPD2_INT_CONTROL, tmp);
3567                 } else {
3568                         tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
3569                         tmp |= DC_HPDx_INT_ACK;
3570                         WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
3571                 }
3572         }
3573         if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT) {
3574                 if (ASIC_IS_DCE3(rdev)) {
3575                         tmp = RREG32(DC_HPD3_INT_CONTROL);
3576                         tmp |= DC_HPDx_INT_ACK;
3577                         WREG32(DC_HPD3_INT_CONTROL, tmp);
3578                 } else {
3579                         tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
3580                         tmp |= DC_HPDx_INT_ACK;
3581                         WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
3582                 }
3583         }
3584         if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT) {
3585                 tmp = RREG32(DC_HPD4_INT_CONTROL);
3586                 tmp |= DC_HPDx_INT_ACK;
3587                 WREG32(DC_HPD4_INT_CONTROL, tmp);
3588         }
3589         if (ASIC_IS_DCE32(rdev)) {
3590                 if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT) {
3591                         tmp = RREG32(DC_HPD5_INT_CONTROL);
3592                         tmp |= DC_HPDx_INT_ACK;
3593                         WREG32(DC_HPD5_INT_CONTROL, tmp);
3594                 }
3595                 if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
3596                         tmp = RREG32(DC_HPD5_INT_CONTROL);
3597                         tmp |= DC_HPDx_INT_ACK;
3598                         WREG32(DC_HPD6_INT_CONTROL, tmp);
3599                 }
3600                 if (rdev->irq.stat_regs.r600.hdmi0_status & AFMT_AZ_FORMAT_WTRIG) {
3601                         tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0);
3602                         tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
3603                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, tmp);
3604                 }
3605                 if (rdev->irq.stat_regs.r600.hdmi1_status & AFMT_AZ_FORMAT_WTRIG) {
3606                         tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1);
3607                         tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
3608                         WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, tmp);
3609                 }
3610         } else {
3611                 if (rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG) {
3612                         tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL);
3613                         tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
3614                         WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
3615                 }
3616                 if (rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG) {
3617                         if (ASIC_IS_DCE3(rdev)) {
3618                                 tmp = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL);
3619                                 tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
3620                                 WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, tmp);
3621                         } else {
3622                                 tmp = RREG32(HDMI1_AUDIO_PACKET_CONTROL);
3623                                 tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
3624                                 WREG32(HDMI1_AUDIO_PACKET_CONTROL, tmp);
3625                         }
3626                 }
3627         }
3628 }
3629
3630 void r600_irq_disable(struct radeon_device *rdev)
3631 {
3632         r600_disable_interrupts(rdev);
3633         /* Wait and acknowledge irq */
3634         mdelay(1);
3635         r600_irq_ack(rdev);
3636         r600_disable_interrupt_state(rdev);
3637 }
3638
3639 static u32 r600_get_ih_wptr(struct radeon_device *rdev)
3640 {
3641         u32 wptr, tmp;
3642
3643         if (rdev->wb.enabled)
3644                 wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
3645         else
3646                 wptr = RREG32(IH_RB_WPTR);
3647
3648         if (wptr & RB_OVERFLOW) {
3649                 /* When a ring buffer overflow happen start parsing interrupt
3650                  * from the last not overwritten vector (wptr + 16). Hopefully
3651                  * this should allow us to catchup.
3652                  */
3653                 dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, %d, %d)\n",
3654                         wptr, rdev->ih.rptr, (wptr + 16) + rdev->ih.ptr_mask);
3655                 rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
3656                 tmp = RREG32(IH_RB_CNTL);
3657                 tmp |= IH_WPTR_OVERFLOW_CLEAR;
3658                 WREG32(IH_RB_CNTL, tmp);
3659         }
3660         return (wptr & rdev->ih.ptr_mask);
3661 }
3662
3663 /*        r600 IV Ring
3664  * Each IV ring entry is 128 bits:
3665  * [7:0]    - interrupt source id
3666  * [31:8]   - reserved
3667  * [59:32]  - interrupt source data
3668  * [127:60]  - reserved
3669  *
3670  * The basic interrupt vector entries
3671  * are decoded as follows:
3672  * src_id  src_data  description
3673  *      1         0  D1 Vblank
3674  *      1         1  D1 Vline
3675  *      5         0  D2 Vblank
3676  *      5         1  D2 Vline
3677  *     19         0  FP Hot plug detection A
3678  *     19         1  FP Hot plug detection B
3679  *     19         2  DAC A auto-detection
3680  *     19         3  DAC B auto-detection
3681  *     21         4  HDMI block A
3682  *     21         5  HDMI block B
3683  *    176         -  CP_INT RB
3684  *    177         -  CP_INT IB1
3685  *    178         -  CP_INT IB2
3686  *    181         -  EOP Interrupt
3687  *    233         -  GUI Idle
3688  *
3689  * Note, these are based on r600 and may need to be
3690  * adjusted or added to on newer asics
3691  */
3692
3693 int r600_irq_process(struct radeon_device *rdev)
3694 {
3695         u32 wptr;
3696         u32 rptr;
3697         u32 src_id, src_data;
3698         u32 ring_index;
3699         bool queue_hotplug = false;
3700         bool queue_hdmi = false;
3701         bool queue_thermal = false;
3702
3703         if (!rdev->ih.enabled || rdev->shutdown)
3704                 return IRQ_NONE;
3705
3706         /* No MSIs, need a dummy read to flush PCI DMAs */
3707         if (!rdev->msi_enabled)
3708                 RREG32(IH_RB_WPTR);
3709
3710         wptr = r600_get_ih_wptr(rdev);
3711
3712 restart_ih:
3713         /* is somebody else already processing irqs? */
3714         if (atomic_xchg(&rdev->ih.lock, 1))
3715                 return IRQ_NONE;
3716
3717         rptr = rdev->ih.rptr;
3718         DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
3719
3720         /* Order reading of wptr vs. reading of IH ring data */
3721         rmb();
3722
3723         /* display interrupts */
3724         r600_irq_ack(rdev);
3725
3726         while (rptr != wptr) {
3727                 /* wptr/rptr are in bytes! */
3728                 ring_index = rptr / 4;
3729                 src_id = le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff;
3730                 src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff;
3731
3732                 switch (src_id) {
3733                 case 1: /* D1 vblank/vline */
3734                         switch (src_data) {
3735                         case 0: /* D1 vblank */
3736                                 if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT) {
3737                                         if (rdev->irq.crtc_vblank_int[0]) {
3738                                                 drm_handle_vblank(rdev->ddev, 0);
3739                                                 rdev->pm.vblank_sync = true;
3740                                                 wake_up(&rdev->irq.vblank_queue);
3741                                         }
3742                                         if (atomic_read(&rdev->irq.pflip[0]))
3743                                                 radeon_crtc_handle_flip(rdev, 0);
3744                                         rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
3745                                         DRM_DEBUG("IH: D1 vblank\n");
3746                                 }
3747                                 break;
3748                         case 1: /* D1 vline */
3749                                 if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT) {
3750                                         rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
3751                                         DRM_DEBUG("IH: D1 vline\n");
3752                                 }
3753                                 break;
3754                         default:
3755                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3756                                 break;
3757                         }
3758                         break;
3759                 case 5: /* D2 vblank/vline */
3760                         switch (src_data) {
3761                         case 0: /* D2 vblank */
3762                                 if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT) {
3763                                         if (rdev->irq.crtc_vblank_int[1]) {
3764                                                 drm_handle_vblank(rdev->ddev, 1);
3765                                                 rdev->pm.vblank_sync = true;
3766                                                 wake_up(&rdev->irq.vblank_queue);
3767                                         }
3768                                         if (atomic_read(&rdev->irq.pflip[1]))
3769                                                 radeon_crtc_handle_flip(rdev, 1);
3770                                         rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
3771                                         DRM_DEBUG("IH: D2 vblank\n");
3772                                 }
3773                                 break;
3774                         case 1: /* D1 vline */
3775                                 if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT) {
3776                                         rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
3777                                         DRM_DEBUG("IH: D2 vline\n");
3778                                 }
3779                                 break;
3780                         default:
3781                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3782                                 break;
3783                         }
3784                         break;
3785                 case 19: /* HPD/DAC hotplug */
3786                         switch (src_data) {
3787                         case 0:
3788                                 if (rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT) {
3789                                         rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
3790                                         queue_hotplug = true;
3791                                         DRM_DEBUG("IH: HPD1\n");
3792                                 }
3793                                 break;
3794                         case 1:
3795                                 if (rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT) {
3796                                         rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
3797                                         queue_hotplug = true;
3798                                         DRM_DEBUG("IH: HPD2\n");
3799                                 }
3800                                 break;
3801                         case 4:
3802                                 if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT) {
3803                                         rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
3804                                         queue_hotplug = true;
3805                                         DRM_DEBUG("IH: HPD3\n");
3806                                 }
3807                                 break;
3808                         case 5:
3809                                 if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT) {
3810                                         rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
3811                                         queue_hotplug = true;
3812                                         DRM_DEBUG("IH: HPD4\n");
3813                                 }
3814                                 break;
3815                         case 10:
3816                                 if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT) {
3817                                         rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
3818                                         queue_hotplug = true;
3819                                         DRM_DEBUG("IH: HPD5\n");
3820                                 }
3821                                 break;
3822                         case 12:
3823                                 if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
3824                                         rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
3825                                         queue_hotplug = true;
3826                                         DRM_DEBUG("IH: HPD6\n");
3827                                 }
3828                                 break;
3829                         default:
3830                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3831                                 break;
3832                         }
3833                         break;
3834                 case 21: /* hdmi */
3835                         switch (src_data) {
3836                         case 4:
3837                                 if (rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG) {
3838                                         rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
3839                                         queue_hdmi = true;
3840                                         DRM_DEBUG("IH: HDMI0\n");
3841                                 }
3842                                 break;
3843                         case 5:
3844                                 if (rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG) {
3845                                         rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
3846                                         queue_hdmi = true;
3847                                         DRM_DEBUG("IH: HDMI1\n");
3848                                 }
3849                                 break;
3850                         default:
3851                                 DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
3852                                 break;
3853                         }
3854                         break;
3855                 case 176: /* CP_INT in ring buffer */
3856                 case 177: /* CP_INT in IB1 */
3857                 case 178: /* CP_INT in IB2 */
3858                         DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
3859                         radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
3860                         break;
3861                 case 181: /* CP EOP event */
3862                         DRM_DEBUG("IH: CP EOP\n");
3863                         radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
3864                         break;
3865                 case 224: /* DMA trap event */
3866                         DRM_DEBUG("IH: DMA trap\n");
3867                         radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
3868                         break;
3869                 case 230: /* thermal low to high */
3870                         DRM_DEBUG("IH: thermal low to high\n");
3871                         rdev->pm.dpm.thermal.high_to_low = false;
3872                         queue_thermal = true;
3873                         break;
3874                 case 231: /* thermal high to low */
3875                         DRM_DEBUG("IH: thermal high to low\n");
3876                         rdev->pm.dpm.thermal.high_to_low = true;
3877                         queue_thermal = true;
3878                         break;
3879                 case 233: /* GUI IDLE */
3880                         DRM_DEBUG("IH: GUI idle\n");
3881                         break;
3882                 default:
3883                         DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3884                         break;
3885                 }
3886
3887                 /* wptr/rptr are in bytes! */
3888                 rptr += 16;
3889                 rptr &= rdev->ih.ptr_mask;
3890         }
3891         if (queue_hotplug)
3892                 schedule_work(&rdev->hotplug_work);
3893         if (queue_hdmi)
3894                 schedule_work(&rdev->audio_work);
3895         if (queue_thermal && rdev->pm.dpm_enabled)
3896                 schedule_work(&rdev->pm.dpm.thermal.work);
3897         rdev->ih.rptr = rptr;
3898         WREG32(IH_RB_RPTR, rdev->ih.rptr);
3899         atomic_set(&rdev->ih.lock, 0);
3900
3901         /* make sure wptr hasn't changed while processing */
3902         wptr = r600_get_ih_wptr(rdev);
3903         if (wptr != rptr)
3904                 goto restart_ih;
3905
3906         return IRQ_HANDLED;
3907 }
3908
3909 /*
3910  * Debugfs info
3911  */
3912 #if defined(CONFIG_DEBUG_FS)
3913
3914 static int r600_debugfs_mc_info(struct seq_file *m, void *data)
3915 {
3916         struct drm_info_node *node = (struct drm_info_node *) m->private;
3917         struct drm_device *dev = node->minor->dev;
3918         struct radeon_device *rdev = dev->dev_private;
3919
3920         DREG32_SYS(m, rdev, R_000E50_SRBM_STATUS);
3921         DREG32_SYS(m, rdev, VM_L2_STATUS);
3922         return 0;
3923 }
3924
3925 static struct drm_info_list r600_mc_info_list[] = {
3926         {"r600_mc_info", r600_debugfs_mc_info, 0, NULL},
3927 };
3928 #endif
3929
3930 int r600_debugfs_mc_info_init(struct radeon_device *rdev)
3931 {
3932 #if defined(CONFIG_DEBUG_FS)
3933         return radeon_debugfs_add_files(rdev, r600_mc_info_list, ARRAY_SIZE(r600_mc_info_list));
3934 #else
3935         return 0;
3936 #endif
3937 }
3938
3939 /**
3940  * r600_ioctl_wait_idle - flush host path cache on wait idle ioctl
3941  * rdev: radeon device structure
3942  * bo: buffer object struct which userspace is waiting for idle
3943  *
3944  * Some R6XX/R7XX doesn't seems to take into account HDP flush performed
3945  * through ring buffer, this leads to corruption in rendering, see
3946  * http://bugzilla.kernel.org/show_bug.cgi?id=15186 to avoid this we
3947  * directly perform HDP flush by writing register through MMIO.
3948  */
3949 void r600_ioctl_wait_idle(struct radeon_device *rdev, struct radeon_bo *bo)
3950 {
3951         /* r7xx hw bug.  write to HDP_DEBUG1 followed by fb read
3952          * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL.
3953          * This seems to cause problems on some AGP cards. Just use the old
3954          * method for them.
3955          */
3956         if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) &&
3957             rdev->vram_scratch.ptr && !(rdev->flags & RADEON_IS_AGP)) {
3958                 void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
3959                 u32 tmp;
3960
3961                 WREG32(HDP_DEBUG1, 0);
3962                 tmp = readl((void __iomem *)ptr);
3963         } else
3964                 WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
3965 }
3966
3967 void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes)
3968 {
3969         u32 link_width_cntl, mask;
3970
3971         if (rdev->flags & RADEON_IS_IGP)
3972                 return;
3973
3974         if (!(rdev->flags & RADEON_IS_PCIE))
3975                 return;
3976
3977         /* x2 cards have a special sequence */
3978         if (ASIC_IS_X2(rdev))
3979                 return;
3980
3981         radeon_gui_idle(rdev);
3982
3983         switch (lanes) {
3984         case 0:
3985                 mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
3986                 break;
3987         case 1:
3988                 mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
3989                 break;
3990         case 2:
3991                 mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
3992                 break;
3993         case 4:
3994                 mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
3995                 break;
3996         case 8:
3997                 mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
3998                 break;
3999         case 12:
4000                 /* not actually supported */
4001                 mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
4002                 break;
4003         case 16:
4004                 mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
4005                 break;
4006         default:
4007                 DRM_ERROR("invalid pcie lane request: %d\n", lanes);
4008                 return;
4009         }
4010
4011         link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
4012         link_width_cntl &= ~RADEON_PCIE_LC_LINK_WIDTH_MASK;
4013         link_width_cntl |= mask << RADEON_PCIE_LC_LINK_WIDTH_SHIFT;
4014         link_width_cntl |= (RADEON_PCIE_LC_RECONFIG_NOW |
4015                             R600_PCIE_LC_RECONFIG_ARC_MISSING_ESCAPE);
4016
4017         WREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4018 }
4019
4020 int r600_get_pcie_lanes(struct radeon_device *rdev)
4021 {
4022         u32 link_width_cntl;
4023
4024         if (rdev->flags & RADEON_IS_IGP)
4025                 return 0;
4026
4027         if (!(rdev->flags & RADEON_IS_PCIE))
4028                 return 0;
4029
4030         /* x2 cards have a special sequence */
4031         if (ASIC_IS_X2(rdev))
4032                 return 0;
4033
4034         radeon_gui_idle(rdev);
4035
4036         link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
4037
4038         switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) {
4039         case RADEON_PCIE_LC_LINK_WIDTH_X1:
4040                 return 1;
4041         case RADEON_PCIE_LC_LINK_WIDTH_X2:
4042                 return 2;
4043         case RADEON_PCIE_LC_LINK_WIDTH_X4:
4044                 return 4;
4045         case RADEON_PCIE_LC_LINK_WIDTH_X8:
4046                 return 8;
4047         case RADEON_PCIE_LC_LINK_WIDTH_X12:
4048                 /* not actually supported */
4049                 return 12;
4050         case RADEON_PCIE_LC_LINK_WIDTH_X0:
4051         case RADEON_PCIE_LC_LINK_WIDTH_X16:
4052         default:
4053                 return 16;
4054         }
4055 }
4056
4057 static void r600_pcie_gen2_enable(struct radeon_device *rdev)
4058 {
4059         u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp;
4060         u16 link_cntl2;
4061
4062         if (radeon_pcie_gen2 == 0)
4063                 return;
4064
4065         if (rdev->flags & RADEON_IS_IGP)
4066                 return;
4067
4068         if (!(rdev->flags & RADEON_IS_PCIE))
4069                 return;
4070
4071         /* x2 cards have a special sequence */
4072         if (ASIC_IS_X2(rdev))
4073                 return;
4074
4075         /* only RV6xx+ chips are supported */
4076         if (rdev->family <= CHIP_R600)
4077                 return;
4078
4079         if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
4080                 (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
4081                 return;
4082
4083         speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4084         if (speed_cntl & LC_CURRENT_DATA_RATE) {
4085                 DRM_INFO("PCIE gen 2 link speeds already enabled\n");
4086                 return;
4087         }
4088
4089         DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
4090
4091         /* 55 nm r6xx asics */
4092         if ((rdev->family == CHIP_RV670) ||
4093             (rdev->family == CHIP_RV620) ||
4094             (rdev->family == CHIP_RV635)) {
4095                 /* advertise upconfig capability */
4096                 link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4097                 link_width_cntl &= ~LC_UPCONFIGURE_DIS;
4098                 WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4099                 link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4100                 if (link_width_cntl & LC_RENEGOTIATION_SUPPORT) {
4101                         lanes = (link_width_cntl & LC_LINK_WIDTH_RD_MASK) >> LC_LINK_WIDTH_RD_SHIFT;
4102                         link_width_cntl &= ~(LC_LINK_WIDTH_MASK |
4103                                              LC_RECONFIG_ARC_MISSING_ESCAPE);
4104                         link_width_cntl |= lanes | LC_RECONFIG_NOW | LC_RENEGOTIATE_EN;
4105                         WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4106                 } else {
4107                         link_width_cntl |= LC_UPCONFIGURE_DIS;
4108                         WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4109                 }
4110         }
4111
4112         speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4113         if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
4114             (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
4115
4116                 /* 55 nm r6xx asics */
4117                 if ((rdev->family == CHIP_RV670) ||
4118                     (rdev->family == CHIP_RV620) ||
4119                     (rdev->family == CHIP_RV635)) {
4120                         WREG32(MM_CFGREGS_CNTL, 0x8);
4121                         link_cntl2 = RREG32(0x4088);
4122                         WREG32(MM_CFGREGS_CNTL, 0);
4123                         /* not supported yet */
4124                         if (link_cntl2 & SELECTABLE_DEEMPHASIS)
4125                                 return;
4126                 }
4127
4128                 speed_cntl &= ~LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_MASK;
4129                 speed_cntl |= (0x3 << LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_SHIFT);
4130                 speed_cntl &= ~LC_VOLTAGE_TIMER_SEL_MASK;
4131                 speed_cntl &= ~LC_FORCE_DIS_HW_SPEED_CHANGE;
4132                 speed_cntl |= LC_FORCE_EN_HW_SPEED_CHANGE;
4133                 WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4134
4135                 tmp = RREG32(0x541c);
4136                 WREG32(0x541c, tmp | 0x8);
4137                 WREG32(MM_CFGREGS_CNTL, MM_WR_TO_CFG_EN);
4138                 link_cntl2 = RREG16(0x4088);
4139                 link_cntl2 &= ~TARGET_LINK_SPEED_MASK;
4140                 link_cntl2 |= 0x2;
4141                 WREG16(0x4088, link_cntl2);
4142                 WREG32(MM_CFGREGS_CNTL, 0);
4143
4144                 if ((rdev->family == CHIP_RV670) ||
4145                     (rdev->family == CHIP_RV620) ||
4146                     (rdev->family == CHIP_RV635)) {
4147                         training_cntl = RREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL);
4148                         training_cntl &= ~LC_POINT_7_PLUS_EN;
4149                         WREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL, training_cntl);
4150                 } else {
4151                         speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4152                         speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
4153                         WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4154                 }
4155
4156                 speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4157                 speed_cntl |= LC_GEN2_EN_STRAP;
4158                 WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4159
4160         } else {
4161                 link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4162                 /* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
4163                 if (1)
4164                         link_width_cntl |= LC_UPCONFIGURE_DIS;
4165                 else
4166                         link_width_cntl &= ~LC_UPCONFIGURE_DIS;
4167                 WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4168         }
4169 }
4170
4171 /**
4172  * r600_get_gpu_clock_counter - return GPU clock counter snapshot
4173  *
4174  * @rdev: radeon_device pointer
4175  *
4176  * Fetches a GPU clock counter snapshot (R6xx-cayman).
4177  * Returns the 64 bit clock counter snapshot.
4178  */
4179 uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev)
4180 {
4181         uint64_t clock;
4182
4183         mutex_lock(&rdev->gpu_clock_mutex);
4184         WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
4185         clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
4186                 ((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
4187         mutex_unlock(&rdev->gpu_clock_mutex);
4188         return clock;
4189 }