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/seq_file.h>
  29 #include <linux/firmware.h>
  30 #include <linux/platform_device.h>
  31 #include "drmP.h"
  32 #include "radeon_drm.h"
  33 #include "radeon.h"
  34 #include "radeon_mode.h"
  35 #include "r600d.h"
  36 #include "atom.h"
  37 #include "avivod.h"
  38
  39 #define PFP_UCODE_SIZE 576
  40 #define PM4_UCODE_SIZE 1792
  41 #define RLC_UCODE_SIZE 768
  42 #define R700_PFP_UCODE_SIZE 848
  43 #define R700_PM4_UCODE_SIZE 1360
  44 #define R700_RLC_UCODE_SIZE 1024
  45
  46 /* Firmware Names */
  47 MODULE_FIRMWARE("radeon/R600_pfp.bin");
  48 MODULE_FIRMWARE("radeon/R600_me.bin");
  49 MODULE_FIRMWARE("radeon/RV610_pfp.bin");
  50 MODULE_FIRMWARE("radeon/RV610_me.bin");
  51 MODULE_FIRMWARE("radeon/RV630_pfp.bin");
  52 MODULE_FIRMWARE("radeon/RV630_me.bin");
  53 MODULE_FIRMWARE("radeon/RV620_pfp.bin");
  54 MODULE_FIRMWARE("radeon/RV620_me.bin");
  55 MODULE_FIRMWARE("radeon/RV635_pfp.bin");
  56 MODULE_FIRMWARE("radeon/RV635_me.bin");
  57 MODULE_FIRMWARE("radeon/RV670_pfp.bin");
  58 MODULE_FIRMWARE("radeon/RV670_me.bin");
  59 MODULE_FIRMWARE("radeon/RS780_pfp.bin");
  60 MODULE_FIRMWARE("radeon/RS780_me.bin");
  61 MODULE_FIRMWARE("radeon/RV770_pfp.bin");
  62 MODULE_FIRMWARE("radeon/RV770_me.bin");
  63 MODULE_FIRMWARE("radeon/RV730_pfp.bin");
  64 MODULE_FIRMWARE("radeon/RV730_me.bin");
  65 MODULE_FIRMWARE("radeon/RV710_pfp.bin");
  66 MODULE_FIRMWARE("radeon/RV710_me.bin");
  67 MODULE_FIRMWARE("radeon/R600_rlc.bin");
  68 MODULE_FIRMWARE("radeon/R700_rlc.bin");
  69
  70 int r600_debugfs_mc_info_init(struct radeon_device *rdev);
  71
  72 /* r600,rv610,rv630,rv620,rv635,rv670 */
  73 int r600_mc_wait_for_idle(struct radeon_device *rdev);
  74 void r600_gpu_init(struct radeon_device *rdev);
  75 void r600_fini(struct radeon_device *rdev);
  76
  77 /* hpd for digital panel detect/disconnect */
  78 bool r600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
  79 {
  80         bool connected = false;
  81
  82         if (ASIC_IS_DCE3(rdev)) {
  83                 switch (hpd) {
  84                 case RADEON_HPD_1:
  85                         if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
  86                                 connected = true;
  87                         break;
  88                 case RADEON_HPD_2:
  89                         if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
  90                                 connected = true;
  91                         break;
  92                 case RADEON_HPD_3:
  93                         if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
  94                                 connected = true;
  95                         break;
  96                 case RADEON_HPD_4:
  97                         if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
  98                                 connected = true;
  99                         break;
 100                         /* DCE 3.2 */
 101                 case RADEON_HPD_5:
 102                         if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
 103                                 connected = true;
 104                         break;
 105                 case RADEON_HPD_6:
 106                         if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
 107                                 connected = true;
 108                         break;
 109                 default:
 110                         break;
 111                 }
 112         } else {
 113                 switch (hpd) {
 114                 case RADEON_HPD_1:
 115                         if (RREG32(DC_HOT_PLUG_DETECT1_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 116                                 connected = true;
 117                         break;
 118                 case RADEON_HPD_2:
 119                         if (RREG32(DC_HOT_PLUG_DETECT2_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 120                                 connected = true;
 121                         break;
 122                 case RADEON_HPD_3:
 123                         if (RREG32(DC_HOT_PLUG_DETECT3_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
 124                                 connected = true;
 125                         break;
 126                 default:
 127                         break;
 128                 }
 129         }
 130         return connected;
 131 }
 132
 133 void r600_hpd_set_polarity(struct radeon_device *rdev,
 134                            enum radeon_hpd_id hpd)
 135 {
 136         u32 tmp;
 137         bool connected = r600_hpd_sense(rdev, hpd);
 138
 139         if (ASIC_IS_DCE3(rdev)) {
 140                 switch (hpd) {
 141                 case RADEON_HPD_1:
 142                         tmp = RREG32(DC_HPD1_INT_CONTROL);
 143                         if (connected)
 144                                 tmp &= ~DC_HPDx_INT_POLARITY;
 145                         else
 146                                 tmp |= DC_HPDx_INT_POLARITY;
 147                         WREG32(DC_HPD1_INT_CONTROL, tmp);
 148                         break;
 149                 case RADEON_HPD_2:
 150                         tmp = RREG32(DC_HPD2_INT_CONTROL);
 151                         if (connected)
 152                                 tmp &= ~DC_HPDx_INT_POLARITY;
 153                         else
 154                                 tmp |= DC_HPDx_INT_POLARITY;
 155                         WREG32(DC_HPD2_INT_CONTROL, tmp);
 156                         break;
 157                 case RADEON_HPD_3:
 158                         tmp = RREG32(DC_HPD3_INT_CONTROL);
 159                         if (connected)
 160                                 tmp &= ~DC_HPDx_INT_POLARITY;
 161                         else
 162                                 tmp |= DC_HPDx_INT_POLARITY;
 163                         WREG32(DC_HPD3_INT_CONTROL, tmp);
 164                         break;
 165                 case RADEON_HPD_4:
 166                         tmp = RREG32(DC_HPD4_INT_CONTROL);
 167                         if (connected)
 168                                 tmp &= ~DC_HPDx_INT_POLARITY;
 169                         else
 170                                 tmp |= DC_HPDx_INT_POLARITY;
 171                         WREG32(DC_HPD4_INT_CONTROL, tmp);
 172                         break;
 173                 case RADEON_HPD_5:
 174                         tmp = RREG32(DC_HPD5_INT_CONTROL);
 175                         if (connected)
 176                                 tmp &= ~DC_HPDx_INT_POLARITY;
 177                         else
 178                                 tmp |= DC_HPDx_INT_POLARITY;
 179                         WREG32(DC_HPD5_INT_CONTROL, tmp);
 180                         break;
 181                         /* DCE 3.2 */
 182                 case RADEON_HPD_6:
 183                         tmp = RREG32(DC_HPD6_INT_CONTROL);
 184                         if (connected)
 185                                 tmp &= ~DC_HPDx_INT_POLARITY;
 186                         else
 187                                 tmp |= DC_HPDx_INT_POLARITY;
 188                         WREG32(DC_HPD6_INT_CONTROL, tmp);
 189                         break;
 190                 default:
 191                         break;
 192                 }
 193         } else {
 194                 switch (hpd) {
 195                 case RADEON_HPD_1:
 196                         tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
 197                         if (connected)
 198                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 199                         else
 200                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 201                         WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 202                         break;
 203                 case RADEON_HPD_2:
 204                         tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
 205                         if (connected)
 206                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 207                         else
 208                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 209                         WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 210                         break;
 211                 case RADEON_HPD_3:
 212                         tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
 213                         if (connected)
 214                                 tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
 215                         else
 216                                 tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
 217                         WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
 218                         break;
 219                 default:
 220                         break;
 221                 }
 222         }
 223 }
 224
 225 void r600_hpd_init(struct radeon_device *rdev)
 226 {
 227         struct drm_device *dev = rdev->ddev;
 228         struct drm_connector *connector;
 229
 230         if (ASIC_IS_DCE3(rdev)) {
 231                 u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) | DC_HPDx_RX_INT_TIMER(0xfa);
 232                 if (ASIC_IS_DCE32(rdev))
 233                         tmp |= DC_HPDx_EN;
 234
 235                 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 236                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 237                         switch (radeon_connector->hpd.hpd) {
 238                         case RADEON_HPD_1:
 239                                 WREG32(DC_HPD1_CONTROL, tmp);
 240                                 rdev->irq.hpd[0] = true;
 241                                 break;
 242                         case RADEON_HPD_2:
 243                                 WREG32(DC_HPD2_CONTROL, tmp);
 244                                 rdev->irq.hpd[1] = true;
 245                                 break;
 246                         case RADEON_HPD_3:
 247                                 WREG32(DC_HPD3_CONTROL, tmp);
 248                                 rdev->irq.hpd[2] = true;
 249                                 break;
 250                         case RADEON_HPD_4:
 251                                 WREG32(DC_HPD4_CONTROL, tmp);
 252                                 rdev->irq.hpd[3] = true;
 253                                 break;
 254                                 /* DCE 3.2 */
 255                         case RADEON_HPD_5:
 256                                 WREG32(DC_HPD5_CONTROL, tmp);
 257                                 rdev->irq.hpd[4] = true;
 258                                 break;
 259                         case RADEON_HPD_6:
 260                                 WREG32(DC_HPD6_CONTROL, tmp);
 261                                 rdev->irq.hpd[5] = true;
 262                                 break;
 263                         default:
 264                                 break;
 265                         }
 266                 }
 267         } else {
 268                 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 269                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 270                         switch (radeon_connector->hpd.hpd) {
 271                         case RADEON_HPD_1:
 272                                 WREG32(DC_HOT_PLUG_DETECT1_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 273                                 rdev->irq.hpd[0] = true;
 274                                 break;
 275                         case RADEON_HPD_2:
 276                                 WREG32(DC_HOT_PLUG_DETECT2_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 277                                 rdev->irq.hpd[1] = true;
 278                                 break;
 279                         case RADEON_HPD_3:
 280                                 WREG32(DC_HOT_PLUG_DETECT3_CONTROL, DC_HOT_PLUG_DETECTx_EN);
 281                                 rdev->irq.hpd[2] = true;
 282                                 break;
 283                         default:
 284                                 break;
 285                         }
 286                 }
 287         }
 288         if (rdev->irq.installed)
 289                 r600_irq_set(rdev);
 290 }
 291
 292 void r600_hpd_fini(struct radeon_device *rdev)
 293 {
 294         struct drm_device *dev = rdev->ddev;
 295         struct drm_connector *connector;
 296
 297         if (ASIC_IS_DCE3(rdev)) {
 298                 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 299                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 300                         switch (radeon_connector->hpd.hpd) {
 301                         case RADEON_HPD_1:
 302                                 WREG32(DC_HPD1_CONTROL, 0);
 303                                 rdev->irq.hpd[0] = false;
 304                                 break;
 305                         case RADEON_HPD_2:
 306                                 WREG32(DC_HPD2_CONTROL, 0);
 307                                 rdev->irq.hpd[1] = false;
 308                                 break;
 309                         case RADEON_HPD_3:
 310                                 WREG32(DC_HPD3_CONTROL, 0);
 311                                 rdev->irq.hpd[2] = false;
 312                                 break;
 313                         case RADEON_HPD_4:
 314                                 WREG32(DC_HPD4_CONTROL, 0);
 315                                 rdev->irq.hpd[3] = false;
 316                                 break;
 317                                 /* DCE 3.2 */
 318                         case RADEON_HPD_5:
 319                                 WREG32(DC_HPD5_CONTROL, 0);
 320                                 rdev->irq.hpd[4] = false;
 321                                 break;
 322                         case RADEON_HPD_6:
 323                                 WREG32(DC_HPD6_CONTROL, 0);
 324                                 rdev->irq.hpd[5] = false;
 325                                 break;
 326                         default:
 327                                 break;
 328                         }
 329                 }
 330         } else {
 331                 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 332                         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 333                         switch (radeon_connector->hpd.hpd) {
 334                         case RADEON_HPD_1:
 335                                 WREG32(DC_HOT_PLUG_DETECT1_CONTROL, 0);
 336                                 rdev->irq.hpd[0] = false;
 337                                 break;
 338                         case RADEON_HPD_2:
 339                                 WREG32(DC_HOT_PLUG_DETECT2_CONTROL, 0);
 340                                 rdev->irq.hpd[1] = false;
 341                                 break;
 342                         case RADEON_HPD_3:
 343                                 WREG32(DC_HOT_PLUG_DETECT3_CONTROL, 0);
 344                                 rdev->irq.hpd[2] = false;
 345                                 break;
 346                         default:
 347                                 break;
 348                         }
 349                 }
 350         }
 351 }
 352
 353 /*
 354  * R600 PCIE GART
 355  */
 356 int r600_gart_clear_page(struct radeon_device *rdev, int i)
 357 {
 358         void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
 359         u64 pte;
 360
 361         if (i < 0 || i > rdev->gart.num_gpu_pages)
 362                 return -EINVAL;
 363         pte = 0;
 364         writeq(pte, ((void __iomem *)ptr) + (i * 8));
 365         return 0;
 366 }
 367
 368 void r600_pcie_gart_tlb_flush(struct radeon_device *rdev)
 369 {
 370         unsigned i;
 371         u32 tmp;
 372
 373         WREG32(VM_CONTEXT0_INVALIDATION_LOW_ADDR, rdev->mc.gtt_start >> 12);
 374         WREG32(VM_CONTEXT0_INVALIDATION_HIGH_ADDR, (rdev->mc.gtt_end - 1) >> 12);
 375         WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
 376         for (i = 0; i < rdev->usec_timeout; i++) {
 377                 /* read MC_STATUS */
 378                 tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
 379                 tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
 380                 if (tmp == 2) {
 381                         printk(KERN_WARNING "[drm] r600 flush TLB failed\n");
 382                         return;
 383                 }
 384                 if (tmp) {
 385                         return;
 386                 }
 387                 udelay(1);
 388         }
 389 }
 390
 391 int r600_pcie_gart_init(struct radeon_device *rdev)
 392 {
 393         int r;
 394
 395         if (rdev->gart.table.vram.robj) {
 396                 WARN(1, "R600 PCIE GART already initialized.\n");
 397                 return 0;
 398         }
 399         /* Initialize common gart structure */
 400         r = radeon_gart_init(rdev);
 401         if (r)
 402                 return r;
 403         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 404         return radeon_gart_table_vram_alloc(rdev);
 405 }
 406
 407 int r600_pcie_gart_enable(struct radeon_device *rdev)
 408 {
 409         u32 tmp;
 410         int r, i;
 411
 412         if (rdev->gart.table.vram.robj == NULL) {
 413                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 414                 return -EINVAL;
 415         }
 416         r = radeon_gart_table_vram_pin(rdev);
 417         if (r)
 418                 return r;
 419
 420         /* Setup L2 cache */
 421         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 422                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 423                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 424         WREG32(VM_L2_CNTL2, 0);
 425         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
 426         /* Setup TLB control */
 427         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 428                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 429                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
 430                 ENABLE_WAIT_L2_QUERY;
 431         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
 432         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
 433         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
 434         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 435         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
 436         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
 437         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
 438         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
 439         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
 440         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
 441         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
 442         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
 443         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 444         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 445         WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
 446         WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
 447         WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
 448         WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 449                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 450         WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 451                         (u32)(rdev->dummy_page.addr >> 12));
 452         for (i = 1; i < 7; i++)
 453                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 454
 455         r600_pcie_gart_tlb_flush(rdev);
 456         rdev->gart.ready = true;
 457         return 0;
 458 }
 459
 460 void r600_pcie_gart_disable(struct radeon_device *rdev)
 461 {
 462         u32 tmp;
 463         int i, r;
 464
 465         /* Disable all tables */
 466         for (i = 0; i < 7; i++)
 467                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 468
 469         /* Disable L2 cache */
 470         WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
 471                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 472         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
 473         /* Setup L1 TLB control */
 474         tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
 475                 ENABLE_WAIT_L2_QUERY;
 476         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
 477         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
 478         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
 479         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
 480         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
 481         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
 482         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
 483         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
 484         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp);
 485         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp);
 486         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
 487         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
 488         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp);
 489         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 490         if (rdev->gart.table.vram.robj) {
 491                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 492                 if (likely(r == 0)) {
 493                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 494                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 495                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 496                 }
 497         }
 498 }
 499
 500 void r600_pcie_gart_fini(struct radeon_device *rdev)
 501 {
 502         r600_pcie_gart_disable(rdev);
 503         radeon_gart_table_vram_free(rdev);
 504         radeon_gart_fini(rdev);
 505 }
 506
 507 void r600_agp_enable(struct radeon_device *rdev)
 508 {
 509         u32 tmp;
 510         int i;
 511
 512         /* Setup L2 cache */
 513         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
 514                                 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 515                                 EFFECTIVE_L2_QUEUE_SIZE(7));
 516         WREG32(VM_L2_CNTL2, 0);
 517         WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
 518         /* Setup TLB control */
 519         tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
 520                 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 521                 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
 522                 ENABLE_WAIT_L2_QUERY;
 523         WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
 524         WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
 525         WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
 526         WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
 527         WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
 528         WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
 529         WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
 530         WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
 531         WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
 532         WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
 533         WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
 534         WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
 535         WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 536         WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
 537         for (i = 0; i < 7; i++)
 538                 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
 539 }
 540
 541 int r600_mc_wait_for_idle(struct radeon_device *rdev)
 542 {
 543         unsigned i;
 544         u32 tmp;
 545
 546         for (i = 0; i < rdev->usec_timeout; i++) {
 547                 /* read MC_STATUS */
 548                 tmp = RREG32(R_000E50_SRBM_STATUS) & 0x3F00;
 549                 if (!tmp)
 550                         return 0;
 551                 udelay(1);
 552         }
 553         return -1;
 554 }
 555
 556 static void r600_mc_program(struct radeon_device *rdev)
 557 {
 558         struct rv515_mc_save save;
 559         u32 tmp;
 560         int i, j;
 561
 562         /* Initialize HDP */
 563         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
 564                 WREG32((0x2c14 + j), 0x00000000);
 565                 WREG32((0x2c18 + j), 0x00000000);
 566                 WREG32((0x2c1c + j), 0x00000000);
 567                 WREG32((0x2c20 + j), 0x00000000);
 568                 WREG32((0x2c24 + j), 0x00000000);
 569         }
 570         WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
 571
 572         rv515_mc_stop(rdev, &save);
 573         if (r600_mc_wait_for_idle(rdev)) {
 574                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
 575         }
 576         /* Lockout access through VGA aperture (doesn't exist before R600) */
 577         WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
 578         /* Update configuration */
 579         if (rdev->flags & RADEON_IS_AGP) {
 580                 if (rdev->mc.vram_start < rdev->mc.gtt_start) {
 581                         /* VRAM before AGP */
 582                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
 583                                 rdev->mc.vram_start >> 12);
 584                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 585                                 rdev->mc.gtt_end >> 12);
 586                 } else {
 587                         /* VRAM after AGP */
 588                         WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
 589                                 rdev->mc.gtt_start >> 12);
 590                         WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 591                                 rdev->mc.vram_end >> 12);
 592                 }
 593         } else {
 594                 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start >> 12);
 595                 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end >> 12);
 596         }
 597         WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0);
 598         tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
 599         tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
 600         WREG32(MC_VM_FB_LOCATION, tmp);
 601         WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
 602         WREG32(HDP_NONSURFACE_INFO, (2 << 7));
 603         WREG32(HDP_NONSURFACE_SIZE, rdev->mc.mc_vram_size | 0x3FF);
 604         if (rdev->flags & RADEON_IS_AGP) {
 605                 WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 22);
 606                 WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 22);
 607                 WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
 608         } else {
 609                 WREG32(MC_VM_AGP_BASE, 0);
 610                 WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
 611                 WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
 612         }
 613         if (r600_mc_wait_for_idle(rdev)) {
 614                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
 615         }
 616         rv515_mc_resume(rdev, &save);
 617         /* we need to own VRAM, so turn off the VGA renderer here
 618          * to stop it overwriting our objects */
 619         rv515_vga_render_disable(rdev);
 620 }
 621
 622 int r600_mc_init(struct radeon_device *rdev)
 623 {
 624         fixed20_12 a;
 625         u32 tmp;
 626         int chansize, numchan;
 627         int r;
 628
 629         /* Get VRAM informations */
 630         rdev->mc.vram_is_ddr = true;
 631         tmp = RREG32(RAMCFG);
 632         if (tmp & CHANSIZE_OVERRIDE) {
 633                 chansize = 16;
 634         } else if (tmp & CHANSIZE_MASK) {
 635                 chansize = 64;
 636         } else {
 637                 chansize = 32;
 638         }
 639         tmp = RREG32(CHMAP);
 640         switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
 641         case 0:
 642         default:
 643                 numchan = 1;
 644                 break;
 645         case 1:
 646                 numchan = 2;
 647                 break;
 648         case 2:
 649                 numchan = 4;
 650                 break;
 651         case 3:
 652                 numchan = 8;
 653                 break;
 654         }
 655         rdev->mc.vram_width = numchan * chansize;
 656         /* Could aper size report 0 ? */
 657         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 658         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 659         /* Setup GPU memory space */
 660         rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
 661         rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
 662
 663         if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
 664                 rdev->mc.mc_vram_size = rdev->mc.aper_size;
 665
 666         if (rdev->mc.real_vram_size > rdev->mc.aper_size)
 667                 rdev->mc.real_vram_size = rdev->mc.aper_size;
 668
 669         if (rdev->flags & RADEON_IS_AGP) {
 670                 r = radeon_agp_init(rdev);
 671                 if (r)
 672                         return r;
 673                 /* gtt_size is setup by radeon_agp_init */
 674                 rdev->mc.gtt_location = rdev->mc.agp_base;
 675                 tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
 676                 /* Try to put vram before or after AGP because we
 677                  * we want SYSTEM_APERTURE to cover both VRAM and
 678                  * AGP so that GPU can catch out of VRAM/AGP access
 679                  */
 680                 if (rdev->mc.gtt_location > rdev->mc.mc_vram_size) {
 681                         /* Enough place before */
 682                         rdev->mc.vram_location = rdev->mc.gtt_location -
 683                                                         rdev->mc.mc_vram_size;
 684                 } else if (tmp > rdev->mc.mc_vram_size) {
 685                         /* Enough place after */
 686                         rdev->mc.vram_location = rdev->mc.gtt_location +
 687                                                         rdev->mc.gtt_size;
 688                 } else {
 689                         /* Try to setup VRAM then AGP might not
 690                          * not work on some card
 691                          */
 692                         rdev->mc.vram_location = 0x00000000UL;
 693                         rdev->mc.gtt_location = rdev->mc.mc_vram_size;
 694                 }
 695         } else {
 696                 rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 697                 rdev->mc.vram_location = (RREG32(MC_VM_FB_LOCATION) &
 698                                                         0xFFFF) << 24;
 699                 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size;
 700                 if ((0xFFFFFFFFUL - tmp) >= rdev->mc.gtt_size) {
 701                         /* Enough place after vram */
 702                         rdev->mc.gtt_location = tmp;
 703                 } else if (rdev->mc.vram_location >= rdev->mc.gtt_size) {
 704                         /* Enough place before vram */
 705                         rdev->mc.gtt_location = 0;
 706                 } else {
 707                         /* Not enough place after or before shrink
 708                          * gart size
 709                          */
 710                         if (rdev->mc.vram_location > (0xFFFFFFFFUL - tmp)) {
 711                                 rdev->mc.gtt_location = 0;
 712                                 rdev->mc.gtt_size = rdev->mc.vram_location;
 713                         } else {
 714                                 rdev->mc.gtt_location = tmp;
 715                                 rdev->mc.gtt_size = 0xFFFFFFFFUL - tmp;
 716                         }
 717                 }
 718                 rdev->mc.gtt_location = rdev->mc.mc_vram_size;
 719         }
 720         rdev->mc.vram_start = rdev->mc.vram_location;
 721         rdev->mc.vram_end = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
 722         rdev->mc.gtt_start = rdev->mc.gtt_location;
 723         rdev->mc.gtt_end = rdev->mc.gtt_location + rdev->mc.gtt_size - 1;
 724         /* FIXME: we should enforce default clock in case GPU is not in
 725          * default setup
 726          */
 727         a.full = rfixed_const(100);
 728         rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
 729         rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
 730
 731         if (rdev->flags & RADEON_IS_IGP)
 732                 rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
 733
 734         return 0;
 735 }
 736
 737 /* We doesn't check that the GPU really needs a reset we simply do the
 738  * reset, it's up to the caller to determine if the GPU needs one. We
 739  * might add an helper function to check that.
 740  */
 741 int r600_gpu_soft_reset(struct radeon_device *rdev)
 742 {
 743         struct rv515_mc_save save;
 744         u32 grbm_busy_mask = S_008010_VC_BUSY(1) | S_008010_VGT_BUSY_NO_DMA(1) |
 745                                 S_008010_VGT_BUSY(1) | S_008010_TA03_BUSY(1) |
 746                                 S_008010_TC_BUSY(1) | S_008010_SX_BUSY(1) |
 747                                 S_008010_SH_BUSY(1) | S_008010_SPI03_BUSY(1) |
 748                                 S_008010_SMX_BUSY(1) | S_008010_SC_BUSY(1) |
 749                                 S_008010_PA_BUSY(1) | S_008010_DB03_BUSY(1) |
 750                                 S_008010_CR_BUSY(1) | S_008010_CB03_BUSY(1) |
 751                                 S_008010_GUI_ACTIVE(1);
 752         u32 grbm2_busy_mask = S_008014_SPI0_BUSY(1) | S_008014_SPI1_BUSY(1) |
 753                         S_008014_SPI2_BUSY(1) | S_008014_SPI3_BUSY(1) |
 754                         S_008014_TA0_BUSY(1) | S_008014_TA1_BUSY(1) |
 755                         S_008014_TA2_BUSY(1) | S_008014_TA3_BUSY(1) |
 756                         S_008014_DB0_BUSY(1) | S_008014_DB1_BUSY(1) |
 757                         S_008014_DB2_BUSY(1) | S_008014_DB3_BUSY(1) |
 758                         S_008014_CB0_BUSY(1) | S_008014_CB1_BUSY(1) |
 759                         S_008014_CB2_BUSY(1) | S_008014_CB3_BUSY(1);
 760         u32 srbm_reset = 0;
 761         u32 tmp;
 762
 763         dev_info(rdev->dev, "GPU softreset \n");
 764         dev_info(rdev->dev, "  R_008010_GRBM_STATUS=0x%08X\n",
 765                 RREG32(R_008010_GRBM_STATUS));
 766         dev_info(rdev->dev, "  R_008014_GRBM_STATUS2=0x%08X\n",
 767                 RREG32(R_008014_GRBM_STATUS2));
 768         dev_info(rdev->dev, "  R_000E50_SRBM_STATUS=0x%08X\n",
 769                 RREG32(R_000E50_SRBM_STATUS));
 770         rv515_mc_stop(rdev, &save);
 771         if (r600_mc_wait_for_idle(rdev)) {
 772                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
 773         }
 774         /* Disable CP parsing/prefetching */
 775         WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(0xff));
 776         /* Check if any of the rendering block is busy and reset it */
 777         if ((RREG32(R_008010_GRBM_STATUS) & grbm_busy_mask) ||
 778             (RREG32(R_008014_GRBM_STATUS2) & grbm2_busy_mask)) {
 779                 tmp = S_008020_SOFT_RESET_CR(1) |
 780                         S_008020_SOFT_RESET_DB(1) |
 781                         S_008020_SOFT_RESET_CB(1) |
 782                         S_008020_SOFT_RESET_PA(1) |
 783                         S_008020_SOFT_RESET_SC(1) |
 784                         S_008020_SOFT_RESET_SMX(1) |
 785                         S_008020_SOFT_RESET_SPI(1) |
 786                         S_008020_SOFT_RESET_SX(1) |
 787                         S_008020_SOFT_RESET_SH(1) |
 788                         S_008020_SOFT_RESET_TC(1) |
 789                         S_008020_SOFT_RESET_TA(1) |
 790                         S_008020_SOFT_RESET_VC(1) |
 791                         S_008020_SOFT_RESET_VGT(1);
 792                 dev_info(rdev->dev, "  R_008020_GRBM_SOFT_RESET=0x%08X\n", tmp);
 793                 WREG32(R_008020_GRBM_SOFT_RESET, tmp);
 794                 (void)RREG32(R_008020_GRBM_SOFT_RESET);
 795                 udelay(50);
 796                 WREG32(R_008020_GRBM_SOFT_RESET, 0);
 797                 (void)RREG32(R_008020_GRBM_SOFT_RESET);
 798         }
 799         /* Reset CP (we always reset CP) */
 800         tmp = S_008020_SOFT_RESET_CP(1);
 801         dev_info(rdev->dev, "R_008020_GRBM_SOFT_RESET=0x%08X\n", tmp);
 802         WREG32(R_008020_GRBM_SOFT_RESET, tmp);
 803         (void)RREG32(R_008020_GRBM_SOFT_RESET);
 804         udelay(50);
 805         WREG32(R_008020_GRBM_SOFT_RESET, 0);
 806         (void)RREG32(R_008020_GRBM_SOFT_RESET);
 807         /* Reset others GPU block if necessary */
 808         if (G_000E50_RLC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 809                 srbm_reset |= S_000E60_SOFT_RESET_RLC(1);
 810         if (G_000E50_GRBM_RQ_PENDING(RREG32(R_000E50_SRBM_STATUS)))
 811                 srbm_reset |= S_000E60_SOFT_RESET_GRBM(1);
 812         if (G_000E50_HI_RQ_PENDING(RREG32(R_000E50_SRBM_STATUS)))
 813                 srbm_reset |= S_000E60_SOFT_RESET_IH(1);
 814         if (G_000E50_VMC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 815                 srbm_reset |= S_000E60_SOFT_RESET_VMC(1);
 816         if (G_000E50_MCB_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 817                 srbm_reset |= S_000E60_SOFT_RESET_MC(1);
 818         if (G_000E50_MCDZ_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 819                 srbm_reset |= S_000E60_SOFT_RESET_MC(1);
 820         if (G_000E50_MCDY_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 821                 srbm_reset |= S_000E60_SOFT_RESET_MC(1);
 822         if (G_000E50_MCDX_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 823                 srbm_reset |= S_000E60_SOFT_RESET_MC(1);
 824         if (G_000E50_MCDW_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 825                 srbm_reset |= S_000E60_SOFT_RESET_MC(1);
 826         if (G_000E50_RLC_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 827                 srbm_reset |= S_000E60_SOFT_RESET_RLC(1);
 828         if (G_000E50_SEM_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 829                 srbm_reset |= S_000E60_SOFT_RESET_SEM(1);
 830         if (G_000E50_BIF_BUSY(RREG32(R_000E50_SRBM_STATUS)))
 831                 srbm_reset |= S_000E60_SOFT_RESET_BIF(1);
 832         dev_info(rdev->dev, "  R_000E60_SRBM_SOFT_RESET=0x%08X\n", srbm_reset);
 833         WREG32(R_000E60_SRBM_SOFT_RESET, srbm_reset);
 834         (void)RREG32(R_000E60_SRBM_SOFT_RESET);
 835         udelay(50);
 836         WREG32(R_000E60_SRBM_SOFT_RESET, 0);
 837         (void)RREG32(R_000E60_SRBM_SOFT_RESET);
 838         WREG32(R_000E60_SRBM_SOFT_RESET, srbm_reset);
 839         (void)RREG32(R_000E60_SRBM_SOFT_RESET);
 840         udelay(50);
 841         WREG32(R_000E60_SRBM_SOFT_RESET, 0);
 842         (void)RREG32(R_000E60_SRBM_SOFT_RESET);
 843         /* Wait a little for things to settle down */
 844         udelay(50);
 845         dev_info(rdev->dev, "  R_008010_GRBM_STATUS=0x%08X\n",
 846                 RREG32(R_008010_GRBM_STATUS));
 847         dev_info(rdev->dev, "  R_008014_GRBM_STATUS2=0x%08X\n",
 848                 RREG32(R_008014_GRBM_STATUS2));
 849         dev_info(rdev->dev, "  R_000E50_SRBM_STATUS=0x%08X\n",
 850                 RREG32(R_000E50_SRBM_STATUS));
 851         /* After reset we need to reinit the asic as GPU often endup in an
 852          * incoherent state.
 853          */
 854         atom_asic_init(rdev->mode_info.atom_context);
 855         rv515_mc_resume(rdev, &save);
 856         return 0;
 857 }
 858
 859 int r600_gpu_reset(struct radeon_device *rdev)
 860 {
 861         return r600_gpu_soft_reset(rdev);
 862 }
 863
 864 static u32 r600_get_tile_pipe_to_backend_map(u32 num_tile_pipes,
 865                                              u32 num_backends,
 866                                              u32 backend_disable_mask)
 867 {
 868         u32 backend_map = 0;
 869         u32 enabled_backends_mask;
 870         u32 enabled_backends_count;
 871         u32 cur_pipe;
 872         u32 swizzle_pipe[R6XX_MAX_PIPES];
 873         u32 cur_backend;
 874         u32 i;
 875
 876         if (num_tile_pipes > R6XX_MAX_PIPES)
 877                 num_tile_pipes = R6XX_MAX_PIPES;
 878         if (num_tile_pipes < 1)
 879                 num_tile_pipes = 1;
 880         if (num_backends > R6XX_MAX_BACKENDS)
 881                 num_backends = R6XX_MAX_BACKENDS;
 882         if (num_backends < 1)
 883                 num_backends = 1;
 884
 885         enabled_backends_mask = 0;
 886         enabled_backends_count = 0;
 887         for (i = 0; i < R6XX_MAX_BACKENDS; ++i) {
 888                 if (((backend_disable_mask >> i) & 1) == 0) {
 889                         enabled_backends_mask |= (1 << i);
 890                         ++enabled_backends_count;
 891                 }
 892                 if (enabled_backends_count == num_backends)
 893                         break;
 894         }
 895
 896         if (enabled_backends_count == 0) {
 897                 enabled_backends_mask = 1;
 898                 enabled_backends_count = 1;
 899         }
 900
 901         if (enabled_backends_count != num_backends)
 902                 num_backends = enabled_backends_count;
 903
 904         memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * R6XX_MAX_PIPES);
 905         switch (num_tile_pipes) {
 906         case 1:
 907                 swizzle_pipe[0] = 0;
 908                 break;
 909         case 2:
 910                 swizzle_pipe[0] = 0;
 911                 swizzle_pipe[1] = 1;
 912                 break;
 913         case 3:
 914                 swizzle_pipe[0] = 0;
 915                 swizzle_pipe[1] = 1;
 916                 swizzle_pipe[2] = 2;
 917                 break;
 918         case 4:
 919                 swizzle_pipe[0] = 0;
 920                 swizzle_pipe[1] = 1;
 921                 swizzle_pipe[2] = 2;
 922                 swizzle_pipe[3] = 3;
 923                 break;
 924         case 5:
 925                 swizzle_pipe[0] = 0;
 926                 swizzle_pipe[1] = 1;
 927                 swizzle_pipe[2] = 2;
 928                 swizzle_pipe[3] = 3;
 929                 swizzle_pipe[4] = 4;
 930                 break;
 931         case 6:
 932                 swizzle_pipe[0] = 0;
 933                 swizzle_pipe[1] = 2;
 934                 swizzle_pipe[2] = 4;
 935                 swizzle_pipe[3] = 5;
 936                 swizzle_pipe[4] = 1;
 937                 swizzle_pipe[5] = 3;
 938                 break;
 939         case 7:
 940                 swizzle_pipe[0] = 0;
 941                 swizzle_pipe[1] = 2;
 942                 swizzle_pipe[2] = 4;
 943                 swizzle_pipe[3] = 6;
 944                 swizzle_pipe[4] = 1;
 945                 swizzle_pipe[5] = 3;
 946                 swizzle_pipe[6] = 5;
 947                 break;
 948         case 8:
 949                 swizzle_pipe[0] = 0;
 950                 swizzle_pipe[1] = 2;
 951                 swizzle_pipe[2] = 4;
 952                 swizzle_pipe[3] = 6;
 953                 swizzle_pipe[4] = 1;
 954                 swizzle_pipe[5] = 3;
 955                 swizzle_pipe[6] = 5;
 956                 swizzle_pipe[7] = 7;
 957                 break;
 958         }
 959
 960         cur_backend = 0;
 961         for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
 962                 while (((1 << cur_backend) & enabled_backends_mask) == 0)
 963                         cur_backend = (cur_backend + 1) % R6XX_MAX_BACKENDS;
 964
 965                 backend_map |= (u32)(((cur_backend & 3) << (swizzle_pipe[cur_pipe] * 2)));
 966
 967                 cur_backend = (cur_backend + 1) % R6XX_MAX_BACKENDS;
 968         }
 969
 970         return backend_map;
 971 }
 972
 973 int r600_count_pipe_bits(uint32_t val)
 974 {
 975         int i, ret = 0;
 976
 977         for (i = 0; i < 32; i++) {
 978                 ret += val & 1;
 979                 val >>= 1;
 980         }
 981         return ret;
 982 }
 983
 984 void r600_gpu_init(struct radeon_device *rdev)
 985 {
 986         u32 tiling_config;
 987         u32 ramcfg;
 988         u32 tmp;
 989         int i, j;
 990         u32 sq_config;
 991         u32 sq_gpr_resource_mgmt_1 = 0;
 992         u32 sq_gpr_resource_mgmt_2 = 0;
 993         u32 sq_thread_resource_mgmt = 0;
 994         u32 sq_stack_resource_mgmt_1 = 0;
 995         u32 sq_stack_resource_mgmt_2 = 0;
 996
 997         /* FIXME: implement */
 998         switch (rdev->family) {
 999         case CHIP_R600:
1000                 rdev->config.r600.max_pipes = 4;
1001                 rdev->config.r600.max_tile_pipes = 8;
1002                 rdev->config.r600.max_simds = 4;
1003                 rdev->config.r600.max_backends = 4;
1004                 rdev->config.r600.max_gprs = 256;
1005                 rdev->config.r600.max_threads = 192;
1006                 rdev->config.r600.max_stack_entries = 256;
1007                 rdev->config.r600.max_hw_contexts = 8;
1008                 rdev->config.r600.max_gs_threads = 16;
1009                 rdev->config.r600.sx_max_export_size = 128;
1010                 rdev->config.r600.sx_max_export_pos_size = 16;
1011                 rdev->config.r600.sx_max_export_smx_size = 128;
1012                 rdev->config.r600.sq_num_cf_insts = 2;
1013                 break;
1014         case CHIP_RV630:
1015         case CHIP_RV635:
1016                 rdev->config.r600.max_pipes = 2;
1017                 rdev->config.r600.max_tile_pipes = 2;
1018                 rdev->config.r600.max_simds = 3;
1019                 rdev->config.r600.max_backends = 1;
1020                 rdev->config.r600.max_gprs = 128;
1021                 rdev->config.r600.max_threads = 192;
1022                 rdev->config.r600.max_stack_entries = 128;
1023                 rdev->config.r600.max_hw_contexts = 8;
1024                 rdev->config.r600.max_gs_threads = 4;
1025                 rdev->config.r600.sx_max_export_size = 128;
1026                 rdev->config.r600.sx_max_export_pos_size = 16;
1027                 rdev->config.r600.sx_max_export_smx_size = 128;
1028                 rdev->config.r600.sq_num_cf_insts = 2;
1029                 break;
1030         case CHIP_RV610:
1031         case CHIP_RV620:
1032         case CHIP_RS780:
1033         case CHIP_RS880:
1034                 rdev->config.r600.max_pipes = 1;
1035                 rdev->config.r600.max_tile_pipes = 1;
1036                 rdev->config.r600.max_simds = 2;
1037                 rdev->config.r600.max_backends = 1;
1038                 rdev->config.r600.max_gprs = 128;
1039                 rdev->config.r600.max_threads = 192;
1040                 rdev->config.r600.max_stack_entries = 128;
1041                 rdev->config.r600.max_hw_contexts = 4;
1042                 rdev->config.r600.max_gs_threads = 4;
1043                 rdev->config.r600.sx_max_export_size = 128;
1044                 rdev->config.r600.sx_max_export_pos_size = 16;
1045                 rdev->config.r600.sx_max_export_smx_size = 128;
1046                 rdev->config.r600.sq_num_cf_insts = 1;
1047                 break;
1048         case CHIP_RV670:
1049                 rdev->config.r600.max_pipes = 4;
1050                 rdev->config.r600.max_tile_pipes = 4;
1051                 rdev->config.r600.max_simds = 4;
1052                 rdev->config.r600.max_backends = 4;
1053                 rdev->config.r600.max_gprs = 192;
1054                 rdev->config.r600.max_threads = 192;
1055                 rdev->config.r600.max_stack_entries = 256;
1056                 rdev->config.r600.max_hw_contexts = 8;
1057                 rdev->config.r600.max_gs_threads = 16;
1058                 rdev->config.r600.sx_max_export_size = 128;
1059                 rdev->config.r600.sx_max_export_pos_size = 16;
1060                 rdev->config.r600.sx_max_export_smx_size = 128;
1061                 rdev->config.r600.sq_num_cf_insts = 2;
1062                 break;
1063         default:
1064                 break;
1065         }
1066
1067         /* Initialize HDP */
1068         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1069                 WREG32((0x2c14 + j), 0x00000000);
1070                 WREG32((0x2c18 + j), 0x00000000);
1071                 WREG32((0x2c1c + j), 0x00000000);
1072                 WREG32((0x2c20 + j), 0x00000000);
1073                 WREG32((0x2c24 + j), 0x00000000);
1074         }
1075
1076         WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
1077
1078         /* Setup tiling */
1079         tiling_config = 0;
1080         ramcfg = RREG32(RAMCFG);
1081         switch (rdev->config.r600.max_tile_pipes) {
1082         case 1:
1083                 tiling_config |= PIPE_TILING(0);
1084                 break;
1085         case 2:
1086                 tiling_config |= PIPE_TILING(1);
1087                 break;
1088         case 4:
1089                 tiling_config |= PIPE_TILING(2);
1090                 break;
1091         case 8:
1092                 tiling_config |= PIPE_TILING(3);
1093                 break;
1094         default:
1095                 break;
1096         }
1097         tiling_config |= BANK_TILING((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
1098         tiling_config |= GROUP_SIZE(0);
1099         tmp = (ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
1100         if (tmp > 3) {
1101                 tiling_config |= ROW_TILING(3);
1102                 tiling_config |= SAMPLE_SPLIT(3);
1103         } else {
1104                 tiling_config |= ROW_TILING(tmp);
1105                 tiling_config |= SAMPLE_SPLIT(tmp);
1106         }
1107         tiling_config |= BANK_SWAPS(1);
1108         tmp = r600_get_tile_pipe_to_backend_map(rdev->config.r600.max_tile_pipes,
1109                                                 rdev->config.r600.max_backends,
1110                                                 (0xff << rdev->config.r600.max_backends) & 0xff);
1111         tiling_config |= BACKEND_MAP(tmp);
1112         WREG32(GB_TILING_CONFIG, tiling_config);
1113         WREG32(DCP_TILING_CONFIG, tiling_config & 0xffff);
1114         WREG32(HDP_TILING_CONFIG, tiling_config & 0xffff);
1115
1116         tmp = BACKEND_DISABLE((R6XX_MAX_BACKENDS_MASK << rdev->config.r600.max_backends) & R6XX_MAX_BACKENDS_MASK);
1117         WREG32(CC_RB_BACKEND_DISABLE, tmp);
1118
1119         /* Setup pipes */
1120         tmp = INACTIVE_QD_PIPES((R6XX_MAX_PIPES_MASK << rdev->config.r600.max_pipes) & R6XX_MAX_PIPES_MASK);
1121         tmp |= INACTIVE_SIMDS((R6XX_MAX_SIMDS_MASK << rdev->config.r600.max_simds) & R6XX_MAX_SIMDS_MASK);
1122         WREG32(CC_GC_SHADER_PIPE_CONFIG, tmp);
1123         WREG32(GC_USER_SHADER_PIPE_CONFIG, tmp);
1124
1125         tmp = R6XX_MAX_BACKENDS - r600_count_pipe_bits(tmp & INACTIVE_QD_PIPES_MASK);
1126         WREG32(VGT_OUT_DEALLOC_CNTL, (tmp * 4) & DEALLOC_DIST_MASK);
1127         WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((tmp * 4) - 2) & VTX_REUSE_DEPTH_MASK);
1128
1129         /* Setup some CP states */
1130         WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) | ROQ_IB2_START(0x2b)));
1131         WREG32(CP_MEQ_THRESHOLDS, (MEQ_END(0x40) | ROQ_END(0x40)));
1132
1133         WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO | SYNC_GRADIENT |
1134                              SYNC_WALKER | SYNC_ALIGNER));
1135         /* Setup various GPU states */
1136         if (rdev->family == CHIP_RV670)
1137                 WREG32(ARB_GDEC_RD_CNTL, 0x00000021);
1138
1139         tmp = RREG32(SX_DEBUG_1);
1140         tmp |= SMX_EVENT_RELEASE;
1141         if ((rdev->family > CHIP_R600))
1142                 tmp |= ENABLE_NEW_SMX_ADDRESS;
1143         WREG32(SX_DEBUG_1, tmp);
1144
1145         if (((rdev->family) == CHIP_R600) ||
1146             ((rdev->family) == CHIP_RV630) ||
1147             ((rdev->family) == CHIP_RV610) ||
1148             ((rdev->family) == CHIP_RV620) ||
1149             ((rdev->family) == CHIP_RS780) ||
1150             ((rdev->family) == CHIP_RS880)) {
1151                 WREG32(DB_DEBUG, PREZ_MUST_WAIT_FOR_POSTZ_DONE);
1152         } else {
1153                 WREG32(DB_DEBUG, 0);
1154         }
1155         WREG32(DB_WATERMARKS, (DEPTH_FREE(4) | DEPTH_CACHELINE_FREE(16) |
1156                                DEPTH_FLUSH(16) | DEPTH_PENDING_FREE(4)));
1157
1158         WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
1159         WREG32(VGT_NUM_INSTANCES, 0);
1160
1161         WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
1162         WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(0));
1163
1164         tmp = RREG32(SQ_MS_FIFO_SIZES);
1165         if (((rdev->family) == CHIP_RV610) ||
1166             ((rdev->family) == CHIP_RV620) ||
1167             ((rdev->family) == CHIP_RS780) ||
1168             ((rdev->family) == CHIP_RS880)) {
1169                 tmp = (CACHE_FIFO_SIZE(0xa) |
1170                        FETCH_FIFO_HIWATER(0xa) |
1171                        DONE_FIFO_HIWATER(0xe0) |
1172                        ALU_UPDATE_FIFO_HIWATER(0x8));
1173         } else if (((rdev->family) == CHIP_R600) ||
1174                    ((rdev->family) == CHIP_RV630)) {
1175                 tmp &= ~DONE_FIFO_HIWATER(0xff);
1176                 tmp |= DONE_FIFO_HIWATER(0x4);
1177         }
1178         WREG32(SQ_MS_FIFO_SIZES, tmp);
1179
1180         /* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
1181          * should be adjusted as needed by the 2D/3D drivers.  This just sets default values
1182          */
1183         sq_config = RREG32(SQ_CONFIG);
1184         sq_config &= ~(PS_PRIO(3) |
1185                        VS_PRIO(3) |
1186                        GS_PRIO(3) |
1187                        ES_PRIO(3));
1188         sq_config |= (DX9_CONSTS |
1189                       VC_ENABLE |
1190                       PS_PRIO(0) |
1191                       VS_PRIO(1) |
1192                       GS_PRIO(2) |
1193                       ES_PRIO(3));
1194
1195         if ((rdev->family) == CHIP_R600) {
1196                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(124) |
1197                                           NUM_VS_GPRS(124) |
1198                                           NUM_CLAUSE_TEMP_GPRS(4));
1199                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(0) |
1200                                           NUM_ES_GPRS(0));
1201                 sq_thread_resource_mgmt = (NUM_PS_THREADS(136) |
1202                                            NUM_VS_THREADS(48) |
1203                                            NUM_GS_THREADS(4) |
1204                                            NUM_ES_THREADS(4));
1205                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(128) |
1206                                             NUM_VS_STACK_ENTRIES(128));
1207                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(0) |
1208                                             NUM_ES_STACK_ENTRIES(0));
1209         } else if (((rdev->family) == CHIP_RV610) ||
1210                    ((rdev->family) == CHIP_RV620) ||
1211                    ((rdev->family) == CHIP_RS780) ||
1212                    ((rdev->family) == CHIP_RS880)) {
1213                 /* no vertex cache */
1214                 sq_config &= ~VC_ENABLE;
1215
1216                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1217                                           NUM_VS_GPRS(44) |
1218                                           NUM_CLAUSE_TEMP_GPRS(2));
1219                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
1220                                           NUM_ES_GPRS(17));
1221                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1222                                            NUM_VS_THREADS(78) |
1223                                            NUM_GS_THREADS(4) |
1224                                            NUM_ES_THREADS(31));
1225                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
1226                                             NUM_VS_STACK_ENTRIES(40));
1227                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
1228                                             NUM_ES_STACK_ENTRIES(16));
1229         } else if (((rdev->family) == CHIP_RV630) ||
1230                    ((rdev->family) == CHIP_RV635)) {
1231                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1232                                           NUM_VS_GPRS(44) |
1233                                           NUM_CLAUSE_TEMP_GPRS(2));
1234                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(18) |
1235                                           NUM_ES_GPRS(18));
1236                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1237                                            NUM_VS_THREADS(78) |
1238                                            NUM_GS_THREADS(4) |
1239                                            NUM_ES_THREADS(31));
1240                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
1241                                             NUM_VS_STACK_ENTRIES(40));
1242                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
1243                                             NUM_ES_STACK_ENTRIES(16));
1244         } else if ((rdev->family) == CHIP_RV670) {
1245                 sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
1246                                           NUM_VS_GPRS(44) |
1247                                           NUM_CLAUSE_TEMP_GPRS(2));
1248                 sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
1249                                           NUM_ES_GPRS(17));
1250                 sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
1251                                            NUM_VS_THREADS(78) |
1252                                            NUM_GS_THREADS(4) |
1253                                            NUM_ES_THREADS(31));
1254                 sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(64) |
1255                                             NUM_VS_STACK_ENTRIES(64));
1256                 sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(64) |
1257                                             NUM_ES_STACK_ENTRIES(64));
1258         }
1259
1260         WREG32(SQ_CONFIG, sq_config);
1261         WREG32(SQ_GPR_RESOURCE_MGMT_1,  sq_gpr_resource_mgmt_1);
1262         WREG32(SQ_GPR_RESOURCE_MGMT_2,  sq_gpr_resource_mgmt_2);
1263         WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
1264         WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
1265         WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
1266
1267         if (((rdev->family) == CHIP_RV610) ||
1268             ((rdev->family) == CHIP_RV620) ||
1269             ((rdev->family) == CHIP_RS780) ||
1270             ((rdev->family) == CHIP_RS880)) {
1271                 WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(TC_ONLY));
1272         } else {
1273                 WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC));
1274         }
1275
1276         /* More default values. 2D/3D driver should adjust as needed */
1277         WREG32(PA_SC_AA_SAMPLE_LOCS_2S, (S0_X(0xc) | S0_Y(0x4) |
1278                                          S1_X(0x4) | S1_Y(0xc)));
1279         WREG32(PA_SC_AA_SAMPLE_LOCS_4S, (S0_X(0xe) | S0_Y(0xe) |
1280                                          S1_X(0x2) | S1_Y(0x2) |
1281                                          S2_X(0xa) | S2_Y(0x6) |
1282                                          S3_X(0x6) | S3_Y(0xa)));
1283         WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD0, (S0_X(0xe) | S0_Y(0xb) |
1284                                              S1_X(0x4) | S1_Y(0xc) |
1285                                              S2_X(0x1) | S2_Y(0x6) |
1286                                              S3_X(0xa) | S3_Y(0xe)));
1287         WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD1, (S4_X(0x6) | S4_Y(0x1) |
1288                                              S5_X(0x0) | S5_Y(0x0) |
1289                                              S6_X(0xb) | S6_Y(0x4) |
1290                                              S7_X(0x7) | S7_Y(0x8)));
1291
1292         WREG32(VGT_STRMOUT_EN, 0);
1293         tmp = rdev->config.r600.max_pipes * 16;
1294         switch (rdev->family) {
1295         case CHIP_RV610:
1296         case CHIP_RV620:
1297         case CHIP_RS780:
1298         case CHIP_RS880:
1299                 tmp += 32;
1300                 break;
1301         case CHIP_RV670:
1302                 tmp += 128;
1303                 break;
1304         default:
1305                 break;
1306         }
1307         if (tmp > 256) {
1308                 tmp = 256;
1309         }
1310         WREG32(VGT_ES_PER_GS, 128);
1311         WREG32(VGT_GS_PER_ES, tmp);
1312         WREG32(VGT_GS_PER_VS, 2);
1313         WREG32(VGT_GS_VERTEX_REUSE, 16);
1314
1315         /* more default values. 2D/3D driver should adjust as needed */
1316         WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
1317         WREG32(VGT_STRMOUT_EN, 0);
1318         WREG32(SX_MISC, 0);
1319         WREG32(PA_SC_MODE_CNTL, 0);
1320         WREG32(PA_SC_AA_CONFIG, 0);
1321         WREG32(PA_SC_LINE_STIPPLE, 0);
1322         WREG32(SPI_INPUT_Z, 0);
1323         WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
1324         WREG32(CB_COLOR7_FRAG, 0);
1325
1326         /* Clear render buffer base addresses */
1327         WREG32(CB_COLOR0_BASE, 0);
1328         WREG32(CB_COLOR1_BASE, 0);
1329         WREG32(CB_COLOR2_BASE, 0);
1330         WREG32(CB_COLOR3_BASE, 0);
1331         WREG32(CB_COLOR4_BASE, 0);
1332         WREG32(CB_COLOR5_BASE, 0);
1333         WREG32(CB_COLOR6_BASE, 0);
1334         WREG32(CB_COLOR7_BASE, 0);
1335         WREG32(CB_COLOR7_FRAG, 0);
1336
1337         switch (rdev->family) {
1338         case CHIP_RV610:
1339         case CHIP_RV620:
1340         case CHIP_RS780:
1341         case CHIP_RS880:
1342                 tmp = TC_L2_SIZE(8);
1343                 break;
1344         case CHIP_RV630:
1345         case CHIP_RV635:
1346                 tmp = TC_L2_SIZE(4);
1347                 break;
1348         case CHIP_R600:
1349                 tmp = TC_L2_SIZE(0) | L2_DISABLE_LATE_HIT;
1350                 break;
1351         default:
1352                 tmp = TC_L2_SIZE(0);
1353                 break;
1354         }
1355         WREG32(TC_CNTL, tmp);
1356
1357         tmp = RREG32(HDP_HOST_PATH_CNTL);
1358         WREG32(HDP_HOST_PATH_CNTL, tmp);
1359
1360         tmp = RREG32(ARB_POP);
1361         tmp |= ENABLE_TC128;
1362         WREG32(ARB_POP, tmp);
1363
1364         WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
1365         WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
1366                                NUM_CLIP_SEQ(3)));
1367         WREG32(PA_SC_ENHANCE, FORCE_EOV_MAX_CLK_CNT(4095));
1368 }
1369
1370
1371 /*
1372  * Indirect registers accessor
1373  */
1374 u32 r600_pciep_rreg(struct radeon_device *rdev, u32 reg)
1375 {
1376         u32 r;
1377
1378         WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
1379         (void)RREG32(PCIE_PORT_INDEX);
1380         r = RREG32(PCIE_PORT_DATA);
1381         return r;
1382 }
1383
1384 void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
1385 {
1386         WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
1387         (void)RREG32(PCIE_PORT_INDEX);
1388         WREG32(PCIE_PORT_DATA, (v));
1389         (void)RREG32(PCIE_PORT_DATA);
1390 }
1391
1392 /*
1393  * CP & Ring
1394  */
1395 void r600_cp_stop(struct radeon_device *rdev)
1396 {
1397         WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
1398 }
1399
1400 int r600_init_microcode(struct radeon_device *rdev)
1401 {
1402         struct platform_device *pdev;
1403         const char *chip_name;
1404         const char *rlc_chip_name;
1405         size_t pfp_req_size, me_req_size, rlc_req_size;
1406         char fw_name[30];
1407         int err;
1408
1409         DRM_DEBUG("\n");
1410
1411         pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
1412         err = IS_ERR(pdev);
1413         if (err) {
1414                 printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
1415                 return -EINVAL;
1416         }
1417
1418         switch (rdev->family) {
1419         case CHIP_R600:
1420                 chip_name = "R600";
1421                 rlc_chip_name = "R600";
1422                 break;
1423         case CHIP_RV610:
1424                 chip_name = "RV610";
1425                 rlc_chip_name = "R600";
1426                 break;
1427         case CHIP_RV630:
1428                 chip_name = "RV630";
1429                 rlc_chip_name = "R600";
1430                 break;
1431         case CHIP_RV620:
1432                 chip_name = "RV620";
1433                 rlc_chip_name = "R600";
1434                 break;
1435         case CHIP_RV635:
1436                 chip_name = "RV635";
1437                 rlc_chip_name = "R600";
1438                 break;
1439         case CHIP_RV670:
1440                 chip_name = "RV670";
1441                 rlc_chip_name = "R600";
1442                 break;
1443         case CHIP_RS780:
1444         case CHIP_RS880:
1445                 chip_name = "RS780";
1446                 rlc_chip_name = "R600";
1447                 break;
1448         case CHIP_RV770:
1449                 chip_name = "RV770";
1450                 rlc_chip_name = "R700";
1451                 break;
1452         case CHIP_RV730:
1453         case CHIP_RV740:
1454                 chip_name = "RV730";
1455                 rlc_chip_name = "R700";
1456                 break;
1457         case CHIP_RV710:
1458                 chip_name = "RV710";
1459                 rlc_chip_name = "R700";
1460                 break;
1461         default: BUG();
1462         }
1463
1464         if (rdev->family >= CHIP_RV770) {
1465                 pfp_req_size = R700_PFP_UCODE_SIZE * 4;
1466                 me_req_size = R700_PM4_UCODE_SIZE * 4;
1467                 rlc_req_size = R700_RLC_UCODE_SIZE * 4;
1468         } else {
1469                 pfp_req_size = PFP_UCODE_SIZE * 4;
1470                 me_req_size = PM4_UCODE_SIZE * 12;
1471                 rlc_req_size = RLC_UCODE_SIZE * 4;
1472         }
1473
1474         DRM_INFO("Loading %s Microcode\n", chip_name);
1475
1476         snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
1477         err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
1478         if (err)
1479                 goto out;
1480         if (rdev->pfp_fw->size != pfp_req_size) {
1481                 printk(KERN_ERR
1482                        "r600_cp: Bogus length %zu in firmware \"%s\"\n",
1483                        rdev->pfp_fw->size, fw_name);
1484                 err = -EINVAL;
1485                 goto out;
1486         }
1487
1488         snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
1489         err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
1490         if (err)
1491                 goto out;
1492         if (rdev->me_fw->size != me_req_size) {
1493                 printk(KERN_ERR
1494                        "r600_cp: Bogus length %zu in firmware \"%s\"\n",
1495                        rdev->me_fw->size, fw_name);
1496                 err = -EINVAL;
1497         }
1498
1499         snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
1500         err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
1501         if (err)
1502                 goto out;
1503         if (rdev->rlc_fw->size != rlc_req_size) {
1504                 printk(KERN_ERR
1505                        "r600_rlc: Bogus length %zu in firmware \"%s\"\n",
1506                        rdev->rlc_fw->size, fw_name);
1507                 err = -EINVAL;
1508         }
1509
1510 out:
1511         platform_device_unregister(pdev);
1512
1513         if (err) {
1514                 if (err != -EINVAL)
1515                         printk(KERN_ERR
1516                                "r600_cp: Failed to load firmware \"%s\"\n",
1517                                fw_name);
1518                 release_firmware(rdev->pfp_fw);
1519                 rdev->pfp_fw = NULL;
1520                 release_firmware(rdev->me_fw);
1521                 rdev->me_fw = NULL;
1522                 release_firmware(rdev->rlc_fw);
1523                 rdev->rlc_fw = NULL;
1524         }
1525         return err;
1526 }
1527
1528 static int r600_cp_load_microcode(struct radeon_device *rdev)
1529 {
1530         const __be32 *fw_data;
1531         int i;
1532
1533         if (!rdev->me_fw || !rdev->pfp_fw)
1534                 return -EINVAL;
1535
1536         r600_cp_stop(rdev);
1537
1538         WREG32(CP_RB_CNTL, RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
1539
1540         /* Reset cp */
1541         WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
1542         RREG32(GRBM_SOFT_RESET);
1543         mdelay(15);
1544         WREG32(GRBM_SOFT_RESET, 0);
1545
1546         WREG32(CP_ME_RAM_WADDR, 0);
1547
1548         fw_data = (const __be32 *)rdev->me_fw->data;
1549         WREG32(CP_ME_RAM_WADDR, 0);
1550         for (i = 0; i < PM4_UCODE_SIZE * 3; i++)
1551                 WREG32(CP_ME_RAM_DATA,
1552                        be32_to_cpup(fw_data++));
1553
1554         fw_data = (const __be32 *)rdev->pfp_fw->data;
1555         WREG32(CP_PFP_UCODE_ADDR, 0);
1556         for (i = 0; i < PFP_UCODE_SIZE; i++)
1557                 WREG32(CP_PFP_UCODE_DATA,
1558                        be32_to_cpup(fw_data++));
1559
1560         WREG32(CP_PFP_UCODE_ADDR, 0);
1561         WREG32(CP_ME_RAM_WADDR, 0);
1562         WREG32(CP_ME_RAM_RADDR, 0);
1563         return 0;
1564 }
1565
1566 int r600_cp_start(struct radeon_device *rdev)
1567 {
1568         int r;
1569         uint32_t cp_me;
1570
1571         r = radeon_ring_lock(rdev, 7);
1572         if (r) {
1573                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1574                 return r;
1575         }
1576         radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
1577         radeon_ring_write(rdev, 0x1);
1578         if (rdev->family < CHIP_RV770) {
1579                 radeon_ring_write(rdev, 0x3);
1580                 radeon_ring_write(rdev, rdev->config.r600.max_hw_contexts - 1);
1581         } else {
1582                 radeon_ring_write(rdev, 0x0);
1583                 radeon_ring_write(rdev, rdev->config.rv770.max_hw_contexts - 1);
1584         }
1585         radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1586         radeon_ring_write(rdev, 0);
1587         radeon_ring_write(rdev, 0);
1588         radeon_ring_unlock_commit(rdev);
1589
1590         cp_me = 0xff;
1591         WREG32(R_0086D8_CP_ME_CNTL, cp_me);
1592         return 0;
1593 }
1594
1595 int r600_cp_resume(struct radeon_device *rdev)
1596 {
1597         u32 tmp;
1598         u32 rb_bufsz;
1599         int r;
1600
1601         /* Reset cp */
1602         WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
1603         RREG32(GRBM_SOFT_RESET);
1604         mdelay(15);
1605         WREG32(GRBM_SOFT_RESET, 0);
1606
1607         /* Set ring buffer size */
1608         rb_bufsz = drm_order(rdev->cp.ring_size / 8);
1609         tmp = RB_NO_UPDATE | (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1610 #ifdef __BIG_ENDIAN
1611         tmp |= BUF_SWAP_32BIT;
1612 #endif
1613         WREG32(CP_RB_CNTL, tmp);
1614         WREG32(CP_SEM_WAIT_TIMER, 0x4);
1615
1616         /* Set the write pointer delay */
1617         WREG32(CP_RB_WPTR_DELAY, 0);
1618
1619         /* Initialize the ring buffer's read and write pointers */
1620         WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
1621         WREG32(CP_RB_RPTR_WR, 0);
1622         WREG32(CP_RB_WPTR, 0);
1623         WREG32(CP_RB_RPTR_ADDR, rdev->cp.gpu_addr & 0xFFFFFFFF);
1624         WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->cp.gpu_addr));
1625         mdelay(1);
1626         WREG32(CP_RB_CNTL, tmp);
1627
1628         WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
1629         WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
1630
1631         rdev->cp.rptr = RREG32(CP_RB_RPTR);
1632         rdev->cp.wptr = RREG32(CP_RB_WPTR);
1633
1634         r600_cp_start(rdev);
1635         rdev->cp.ready = true;
1636         r = radeon_ring_test(rdev);
1637         if (r) {
1638                 rdev->cp.ready = false;
1639                 return r;
1640         }
1641         return 0;
1642 }
1643
1644 void r600_cp_commit(struct radeon_device *rdev)
1645 {
1646         WREG32(CP_RB_WPTR, rdev->cp.wptr);
1647         (void)RREG32(CP_RB_WPTR);
1648 }
1649
1650 void r600_ring_init(struct radeon_device *rdev, unsigned ring_size)
1651 {
1652         u32 rb_bufsz;
1653
1654         /* Align ring size */
1655         rb_bufsz = drm_order(ring_size / 8);
1656         ring_size = (1 << (rb_bufsz + 1)) * 4;
1657         rdev->cp.ring_size = ring_size;
1658         rdev->cp.align_mask = 16 - 1;
1659 }
1660
1661
1662 /*
1663  * GPU scratch registers helpers function.
1664  */
1665 void r600_scratch_init(struct radeon_device *rdev)
1666 {
1667         int i;
1668
1669         rdev->scratch.num_reg = 7;
1670         for (i = 0; i < rdev->scratch.num_reg; i++) {
1671                 rdev->scratch.free[i] = true;
1672                 rdev->scratch.reg[i] = SCRATCH_REG0 + (i * 4);
1673         }
1674 }
1675
1676 int r600_ring_test(struct radeon_device *rdev)
1677 {
1678         uint32_t scratch;
1679         uint32_t tmp = 0;
1680         unsigned i;
1681         int r;
1682
1683         r = radeon_scratch_get(rdev, &scratch);
1684         if (r) {
1685                 DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r);
1686                 return r;
1687         }
1688         WREG32(scratch, 0xCAFEDEAD);
1689         r = radeon_ring_lock(rdev, 3);
1690         if (r) {
1691                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1692                 radeon_scratch_free(rdev, scratch);
1693                 return r;
1694         }
1695         radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1696         radeon_ring_write(rdev, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
1697         radeon_ring_write(rdev, 0xDEADBEEF);
1698         radeon_ring_unlock_commit(rdev);
1699         for (i = 0; i < rdev->usec_timeout; i++) {
1700                 tmp = RREG32(scratch);
1701                 if (tmp == 0xDEADBEEF)
1702                         break;
1703                 DRM_UDELAY(1);
1704         }
1705         if (i < rdev->usec_timeout) {
1706                 DRM_INFO("ring test succeeded in %d usecs\n", i);
1707         } else {
1708                 DRM_ERROR("radeon: ring test failed (scratch(0x%04X)=0x%08X)\n",
1709                           scratch, tmp);
1710                 r = -EINVAL;
1711         }
1712         radeon_scratch_free(rdev, scratch);
1713         return r;
1714 }
1715
1716 void r600_wb_disable(struct radeon_device *rdev)
1717 {
1718         int r;
1719
1720         WREG32(SCRATCH_UMSK, 0);
1721         if (rdev->wb.wb_obj) {
1722                 r = radeon_bo_reserve(rdev->wb.wb_obj, false);
1723                 if (unlikely(r != 0))
1724                         return;
1725                 radeon_bo_kunmap(rdev->wb.wb_obj);
1726                 radeon_bo_unpin(rdev->wb.wb_obj);
1727                 radeon_bo_unreserve(rdev->wb.wb_obj);
1728         }
1729 }
1730
1731 void r600_wb_fini(struct radeon_device *rdev)
1732 {
1733         r600_wb_disable(rdev);
1734         if (rdev->wb.wb_obj) {
1735                 radeon_bo_unref(&rdev->wb.wb_obj);
1736                 rdev->wb.wb = NULL;
1737                 rdev->wb.wb_obj = NULL;
1738         }
1739 }
1740
1741 int r600_wb_enable(struct radeon_device *rdev)
1742 {
1743         int r;
1744
1745         if (rdev->wb.wb_obj == NULL) {
1746                 r = radeon_bo_create(rdev, NULL, RADEON_GPU_PAGE_SIZE, true,
1747                                 RADEON_GEM_DOMAIN_GTT, &rdev->wb.wb_obj);
1748                 if (r) {
1749                         dev_warn(rdev->dev, "(%d) create WB bo failed\n", r);
1750                         return r;
1751                 }
1752                 r = radeon_bo_reserve(rdev->wb.wb_obj, false);
1753                 if (unlikely(r != 0)) {
1754                         r600_wb_fini(rdev);
1755                         return r;
1756                 }
1757                 r = radeon_bo_pin(rdev->wb.wb_obj, RADEON_GEM_DOMAIN_GTT,
1758                                 &rdev->wb.gpu_addr);
1759                 if (r) {
1760                         radeon_bo_unreserve(rdev->wb.wb_obj);
1761                         dev_warn(rdev->dev, "(%d) pin WB bo failed\n", r);
1762                         r600_wb_fini(rdev);
1763                         return r;
1764                 }
1765                 r = radeon_bo_kmap(rdev->wb.wb_obj, (void **)&rdev->wb.wb);
1766                 radeon_bo_unreserve(rdev->wb.wb_obj);
1767                 if (r) {
1768                         dev_warn(rdev->dev, "(%d) map WB bo failed\n", r);
1769                         r600_wb_fini(rdev);
1770                         return r;
1771                 }
1772         }
1773         WREG32(SCRATCH_ADDR, (rdev->wb.gpu_addr >> 8) & 0xFFFFFFFF);
1774         WREG32(CP_RB_RPTR_ADDR, (rdev->wb.gpu_addr + 1024) & 0xFFFFFFFC);
1775         WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + 1024) & 0xFF);
1776         WREG32(SCRATCH_UMSK, 0xff);
1777         return 0;
1778 }
1779
1780 void r600_fence_ring_emit(struct radeon_device *rdev,
1781                           struct radeon_fence *fence)
1782 {
1783         /* Also consider EVENT_WRITE_EOP.  it handles the interrupts + timestamps + events */
1784         /* Emit fence sequence & fire IRQ */
1785         radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1786         radeon_ring_write(rdev, ((rdev->fence_drv.scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
1787         radeon_ring_write(rdev, fence->seq);
1788         radeon_ring_write(rdev, PACKET0(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0));
1789         radeon_ring_write(rdev, 1);
1790         /* CP_INTERRUPT packet 3 no longer exists, use packet 0 */
1791         radeon_ring_write(rdev, PACKET0(CP_INT_STATUS, 0));
1792         radeon_ring_write(rdev, RB_INT_STAT);
1793 }
1794
1795 int r600_copy_dma(struct radeon_device *rdev,
1796                   uint64_t src_offset,
1797                   uint64_t dst_offset,
1798                   unsigned num_pages,
1799                   struct radeon_fence *fence)
1800 {
1801         /* FIXME: implement */
1802         return 0;
1803 }
1804
1805 int r600_copy_blit(struct radeon_device *rdev,
1806                    uint64_t src_offset, uint64_t dst_offset,
1807                    unsigned num_pages, struct radeon_fence *fence)
1808 {
1809         r600_blit_prepare_copy(rdev, num_pages * RADEON_GPU_PAGE_SIZE);
1810         r600_kms_blit_copy(rdev, src_offset, dst_offset, num_pages * RADEON_GPU_PAGE_SIZE);
1811         r600_blit_done_copy(rdev, fence);
1812         return 0;
1813 }
1814
1815 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
1816                          uint32_t tiling_flags, uint32_t pitch,
1817                          uint32_t offset, uint32_t obj_size)
1818 {
1819         /* FIXME: implement */
1820         return 0;
1821 }
1822
1823 void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
1824 {
1825         /* FIXME: implement */
1826 }
1827
1828
1829 bool r600_card_posted(struct radeon_device *rdev)
1830 {
1831         uint32_t reg;
1832
1833         /* first check CRTCs */
1834         reg = RREG32(D1CRTC_CONTROL) |
1835                 RREG32(D2CRTC_CONTROL);
1836         if (reg & CRTC_EN)
1837                 return true;
1838
1839         /* then check MEM_SIZE, in case the crtcs are off */
1840         if (RREG32(CONFIG_MEMSIZE))
1841                 return true;
1842
1843         return false;
1844 }
1845
1846 int r600_startup(struct radeon_device *rdev)
1847 {
1848         int r;
1849
1850         if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
1851                 r = r600_init_microcode(rdev);
1852                 if (r) {
1853                         DRM_ERROR("Failed to load firmware!\n");
1854                         return r;
1855                 }
1856         }
1857
1858         r600_mc_program(rdev);
1859         if (rdev->flags & RADEON_IS_AGP) {
1860                 r600_agp_enable(rdev);
1861         } else {
1862                 r = r600_pcie_gart_enable(rdev);
1863                 if (r)
1864                         return r;
1865         }
1866         r600_gpu_init(rdev);
1867
1868         if (!rdev->r600_blit.shader_obj) {
1869                 r = r600_blit_init(rdev);
1870                 if (r) {
1871                         DRM_ERROR("radeon: failed blitter (%d).\n", r);
1872                         return r;
1873                 }
1874         }
1875
1876         r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
1877         if (unlikely(r != 0))
1878                 return r;
1879         r = radeon_bo_pin(rdev->r600_blit.shader_obj, RADEON_GEM_DOMAIN_VRAM,
1880                         &rdev->r600_blit.shader_gpu_addr);
1881         radeon_bo_unreserve(rdev->r600_blit.shader_obj);
1882         if (r) {
1883                 dev_err(rdev->dev, "(%d) pin blit object failed\n", r);
1884                 return r;
1885         }
1886
1887         /* Enable IRQ */
1888         r = r600_irq_init(rdev);
1889         if (r) {
1890                 DRM_ERROR("radeon: IH init failed (%d).\n", r);
1891                 radeon_irq_kms_fini(rdev);
1892                 return r;
1893         }
1894         r600_irq_set(rdev);
1895
1896         r = radeon_ring_init(rdev, rdev->cp.ring_size);
1897         if (r)
1898                 return r;
1899         r = r600_cp_load_microcode(rdev);
1900         if (r)
1901                 return r;
1902         r = r600_cp_resume(rdev);
1903         if (r)
1904                 return r;
1905         /* write back buffer are not vital so don't worry about failure */
1906         r600_wb_enable(rdev);
1907         return 0;
1908 }
1909
1910 void r600_vga_set_state(struct radeon_device *rdev, bool state)
1911 {
1912         uint32_t temp;
1913
1914         temp = RREG32(CONFIG_CNTL);
1915         if (state == false) {
1916                 temp &= ~(1<<0);
1917                 temp |= (1<<1);
1918         } else {
1919                 temp &= ~(1<<1);
1920         }
1921         WREG32(CONFIG_CNTL, temp);
1922 }
1923
1924 int r600_resume(struct radeon_device *rdev)
1925 {
1926         int r;
1927
1928         /* Do not reset GPU before posting, on r600 hw unlike on r500 hw,
1929          * posting will perform necessary task to bring back GPU into good
1930          * shape.
1931          */
1932         /* post card */
1933         atom_asic_init(rdev->mode_info.atom_context);
1934         /* Initialize clocks */
1935         r = radeon_clocks_init(rdev);
1936         if (r) {
1937                 return r;
1938         }
1939
1940         r = r600_startup(rdev);
1941         if (r) {
1942                 DRM_ERROR("r600 startup failed on resume\n");
1943                 return r;
1944         }
1945
1946         r = r600_ib_test(rdev);
1947         if (r) {
1948                 DRM_ERROR("radeon: failled testing IB (%d).\n", r);
1949                 return r;
1950         }
1951         return r;
1952 }
1953
1954 int r600_suspend(struct radeon_device *rdev)
1955 {
1956         int r;
1957
1958         /* FIXME: we should wait for ring to be empty */
1959         r600_cp_stop(rdev);
1960         rdev->cp.ready = false;
1961         r600_wb_disable(rdev);
1962         r600_pcie_gart_disable(rdev);
1963         /* unpin shaders bo */
1964         r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
1965         if (unlikely(r != 0))
1966                 return r;
1967         radeon_bo_unpin(rdev->r600_blit.shader_obj);
1968         radeon_bo_unreserve(rdev->r600_blit.shader_obj);
1969         return 0;
1970 }
1971
1972 /* Plan is to move initialization in that function and use
1973  * helper function so that radeon_device_init pretty much
1974  * do nothing more than calling asic specific function. This
1975  * should also allow to remove a bunch of callback function
1976  * like vram_info.
1977  */
1978 int r600_init(struct radeon_device *rdev)
1979 {
1980         int r;
1981
1982         r = radeon_dummy_page_init(rdev);
1983         if (r)
1984                 return r;
1985         if (r600_debugfs_mc_info_init(rdev)) {
1986                 DRM_ERROR("Failed to register debugfs file for mc !\n");
1987         }
1988         /* This don't do much */
1989         r = radeon_gem_init(rdev);
1990         if (r)
1991                 return r;
1992         /* Read BIOS */
1993         if (!radeon_get_bios(rdev)) {
1994                 if (ASIC_IS_AVIVO(rdev))
1995                         return -EINVAL;
1996         }
1997         /* Must be an ATOMBIOS */
1998         if (!rdev->is_atom_bios) {
1999                 dev_err(rdev->dev, "Expecting atombios for R600 GPU\n");
2000                 return -EINVAL;
2001         }
2002         r = radeon_atombios_init(rdev);
2003         if (r)
2004                 return r;
2005         /* Post card if necessary */
2006         if (!r600_card_posted(rdev)) {
2007                 if (!rdev->bios) {
2008                         dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
2009                         return -EINVAL;
2010                 }
2011                 DRM_INFO("GPU not posted. posting now...\n");
2012                 atom_asic_init(rdev->mode_info.atom_context);
2013         }
2014         /* Initialize scratch registers */
2015         r600_scratch_init(rdev);
2016         /* Initialize surface registers */
2017         radeon_surface_init(rdev);
2018         /* Initialize clocks */
2019         radeon_get_clock_info(rdev->ddev);
2020         r = radeon_clocks_init(rdev);
2021         if (r)
2022                 return r;
2023         /* Initialize power management */
2024         radeon_pm_init(rdev);
2025         /* Fence driver */
2026         r = radeon_fence_driver_init(rdev);
2027         if (r)
2028                 return r;
2029         r = r600_mc_init(rdev);
2030         if (r)
2031                 return r;
2032         /* Memory manager */
2033         r = radeon_bo_init(rdev);
2034         if (r)
2035                 return r;
2036
2037         r = radeon_irq_kms_init(rdev);
2038         if (r)
2039                 return r;
2040
2041         rdev->cp.ring_obj = NULL;
2042         r600_ring_init(rdev, 1024 * 1024);
2043
2044         rdev->ih.ring_obj = NULL;
2045         r600_ih_ring_init(rdev, 64 * 1024);
2046
2047         r = r600_pcie_gart_init(rdev);
2048         if (r)
2049                 return r;
2050
2051         rdev->accel_working = true;
2052         r = r600_startup(rdev);
2053         if (r) {
2054                 r600_suspend(rdev);
2055                 r600_wb_fini(rdev);
2056                 radeon_ring_fini(rdev);
2057                 r600_pcie_gart_fini(rdev);
2058                 rdev->accel_working = false;
2059         }
2060         if (rdev->accel_working) {
2061                 r = radeon_ib_pool_init(rdev);
2062                 if (r) {
2063                         DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
2064                         rdev->accel_working = false;
2065                 }
2066                 r = r600_ib_test(rdev);
2067                 if (r) {
2068                         DRM_ERROR("radeon: failed testing IB (%d).\n", r);
2069                         rdev->accel_working = false;
2070                 }
2071         }
2072
2073         r = r600_audio_init(rdev);
2074         if (r)
2075                 return r; /* TODO error handling */
2076         return 0;
2077 }
2078
2079 void r600_fini(struct radeon_device *rdev)
2080 {
2081         /* Suspend operations */
2082         r600_suspend(rdev);
2083
2084         r600_audio_fini(rdev);
2085         r600_blit_fini(rdev);
2086         r600_irq_fini(rdev);
2087         radeon_irq_kms_fini(rdev);
2088         radeon_ring_fini(rdev);
2089         r600_wb_fini(rdev);
2090         r600_pcie_gart_fini(rdev);
2091         radeon_gem_fini(rdev);
2092         radeon_fence_driver_fini(rdev);
2093         radeon_clocks_fini(rdev);
2094         radeon_agp_fini(rdev);
2095         radeon_bo_fini(rdev);
2096         radeon_atombios_fini(rdev);
2097         kfree(rdev->bios);
2098         rdev->bios = NULL;
2099         radeon_dummy_page_fini(rdev);
2100 }
2101
2102
2103 /*
2104  * CS stuff
2105  */
2106 void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
2107 {
2108         /* FIXME: implement */
2109         radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
2110         radeon_ring_write(rdev, ib->gpu_addr & 0xFFFFFFFC);
2111         radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF);
2112         radeon_ring_write(rdev, ib->length_dw);
2113 }
2114
2115 int r600_ib_test(struct radeon_device *rdev)
2116 {
2117         struct radeon_ib *ib;
2118         uint32_t scratch;
2119         uint32_t tmp = 0;
2120         unsigned i;
2121         int r;
2122
2123         r = radeon_scratch_get(rdev, &scratch);
2124         if (r) {
2125                 DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r);
2126                 return r;
2127         }
2128         WREG32(scratch, 0xCAFEDEAD);
2129         r = radeon_ib_get(rdev, &ib);
2130         if (r) {
2131                 DRM_ERROR("radeon: failed to get ib (%d).\n", r);
2132                 return r;
2133         }
2134         ib->ptr[0] = PACKET3(PACKET3_SET_CONFIG_REG, 1);
2135         ib->ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2136         ib->ptr[2] = 0xDEADBEEF;
2137         ib->ptr[3] = PACKET2(0);
2138         ib->ptr[4] = PACKET2(0);
2139         ib->ptr[5] = PACKET2(0);
2140         ib->ptr[6] = PACKET2(0);
2141         ib->ptr[7] = PACKET2(0);
2142         ib->ptr[8] = PACKET2(0);
2143         ib->ptr[9] = PACKET2(0);
2144         ib->ptr[10] = PACKET2(0);
2145         ib->ptr[11] = PACKET2(0);
2146         ib->ptr[12] = PACKET2(0);
2147         ib->ptr[13] = PACKET2(0);
2148         ib->ptr[14] = PACKET2(0);
2149         ib->ptr[15] = PACKET2(0);
2150         ib->length_dw = 16;
2151         r = radeon_ib_schedule(rdev, ib);
2152         if (r) {
2153                 radeon_scratch_free(rdev, scratch);
2154                 radeon_ib_free(rdev, &ib);
2155                 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
2156                 return r;
2157         }
2158         r = radeon_fence_wait(ib->fence, false);
2159         if (r) {
2160                 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
2161                 return r;
2162         }
2163         for (i = 0; i < rdev->usec_timeout; i++) {
2164                 tmp = RREG32(scratch);
2165                 if (tmp == 0xDEADBEEF)
2166                         break;
2167                 DRM_UDELAY(1);
2168         }
2169         if (i < rdev->usec_timeout) {
2170                 DRM_INFO("ib test succeeded in %u usecs\n", i);
2171         } else {
2172                 DRM_ERROR("radeon: ib test failed (sracth(0x%04X)=0x%08X)\n",
2173                           scratch, tmp);
2174                 r = -EINVAL;
2175         }
2176         radeon_scratch_free(rdev, scratch);
2177         radeon_ib_free(rdev, &ib);
2178         return r;
2179 }
2180
2181 /*
2182  * Interrupts
2183  *
2184  * Interrupts use a ring buffer on r6xx/r7xx hardware.  It works pretty
2185  * the same as the CP ring buffer, but in reverse.  Rather than the CPU
2186  * writing to the ring and the GPU consuming, the GPU writes to the ring
2187  * and host consumes.  As the host irq handler processes interrupts, it
2188  * increments the rptr.  When the rptr catches up with the wptr, all the
2189  * current interrupts have been processed.
2190  */
2191
2192 void r600_ih_ring_init(struct radeon_device *rdev, unsigned ring_size)
2193 {
2194         u32 rb_bufsz;
2195
2196         /* Align ring size */
2197         rb_bufsz = drm_order(ring_size / 4);
2198         ring_size = (1 << rb_bufsz) * 4;
2199         rdev->ih.ring_size = ring_size;
2200         rdev->ih.align_mask = 4 - 1;
2201 }
2202
2203 static int r600_ih_ring_alloc(struct radeon_device *rdev, unsigned ring_size)
2204 {
2205         int r;
2206
2207         rdev->ih.ring_size = ring_size;
2208         /* Allocate ring buffer */
2209         if (rdev->ih.ring_obj == NULL) {
2210                 r = radeon_bo_create(rdev, NULL, rdev->ih.ring_size,
2211                                      true,
2212                                      RADEON_GEM_DOMAIN_GTT,
2213                                      &rdev->ih.ring_obj);
2214                 if (r) {
2215                         DRM_ERROR("radeon: failed to create ih ring buffer (%d).\n", r);
2216                         return r;
2217                 }
2218                 r = radeon_bo_reserve(rdev->ih.ring_obj, false);
2219                 if (unlikely(r != 0))
2220                         return r;
2221                 r = radeon_bo_pin(rdev->ih.ring_obj,
2222                                   RADEON_GEM_DOMAIN_GTT,
2223                                   &rdev->ih.gpu_addr);
2224                 if (r) {
2225                         radeon_bo_unreserve(rdev->ih.ring_obj);
2226                         DRM_ERROR("radeon: failed to pin ih ring buffer (%d).\n", r);
2227                         return r;
2228                 }
2229                 r = radeon_bo_kmap(rdev->ih.ring_obj,
2230                                    (void **)&rdev->ih.ring);
2231                 radeon_bo_unreserve(rdev->ih.ring_obj);
2232                 if (r) {
2233                         DRM_ERROR("radeon: failed to map ih ring buffer (%d).\n", r);
2234                         return r;
2235                 }
2236         }
2237         rdev->ih.ptr_mask = (rdev->cp.ring_size / 4) - 1;
2238         rdev->ih.rptr = 0;
2239
2240         return 0;
2241 }
2242
2243 static void r600_ih_ring_fini(struct radeon_device *rdev)
2244 {
2245         int r;
2246         if (rdev->ih.ring_obj) {
2247                 r = radeon_bo_reserve(rdev->ih.ring_obj, false);
2248                 if (likely(r == 0)) {
2249                         radeon_bo_kunmap(rdev->ih.ring_obj);
2250                         radeon_bo_unpin(rdev->ih.ring_obj);
2251                         radeon_bo_unreserve(rdev->ih.ring_obj);
2252                 }
2253                 radeon_bo_unref(&rdev->ih.ring_obj);
2254                 rdev->ih.ring = NULL;
2255                 rdev->ih.ring_obj = NULL;
2256         }
2257 }
2258
2259 static void r600_rlc_stop(struct radeon_device *rdev)
2260 {
2261
2262         if (rdev->family >= CHIP_RV770) {
2263                 /* r7xx asics need to soft reset RLC before halting */
2264                 WREG32(SRBM_SOFT_RESET, SOFT_RESET_RLC);
2265                 RREG32(SRBM_SOFT_RESET);
2266                 udelay(15000);
2267                 WREG32(SRBM_SOFT_RESET, 0);
2268                 RREG32(SRBM_SOFT_RESET);
2269         }
2270
2271         WREG32(RLC_CNTL, 0);
2272 }
2273
2274 static void r600_rlc_start(struct radeon_device *rdev)
2275 {
2276         WREG32(RLC_CNTL, RLC_ENABLE);
2277 }
2278
2279 static int r600_rlc_init(struct radeon_device *rdev)
2280 {
2281         u32 i;
2282         const __be32 *fw_data;
2283
2284         if (!rdev->rlc_fw)
2285                 return -EINVAL;
2286
2287         r600_rlc_stop(rdev);
2288
2289         WREG32(RLC_HB_BASE, 0);
2290         WREG32(RLC_HB_CNTL, 0);
2291         WREG32(RLC_HB_RPTR, 0);
2292         WREG32(RLC_HB_WPTR, 0);
2293         WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
2294         WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
2295         WREG32(RLC_MC_CNTL, 0);
2296         WREG32(RLC_UCODE_CNTL, 0);
2297
2298         fw_data = (const __be32 *)rdev->rlc_fw->data;
2299         if (rdev->family >= CHIP_RV770) {
2300                 for (i = 0; i < R700_RLC_UCODE_SIZE; i++) {
2301                         WREG32(RLC_UCODE_ADDR, i);
2302                         WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
2303                 }
2304         } else {
2305                 for (i = 0; i < RLC_UCODE_SIZE; i++) {
2306                         WREG32(RLC_UCODE_ADDR, i);
2307                         WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
2308                 }
2309         }
2310         WREG32(RLC_UCODE_ADDR, 0);
2311
2312         r600_rlc_start(rdev);
2313
2314         return 0;
2315 }
2316
2317 static void r600_enable_interrupts(struct radeon_device *rdev)
2318 {
2319         u32 ih_cntl = RREG32(IH_CNTL);
2320         u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
2321
2322         ih_cntl |= ENABLE_INTR;
2323         ih_rb_cntl |= IH_RB_ENABLE;
2324         WREG32(IH_CNTL, ih_cntl);
2325         WREG32(IH_RB_CNTL, ih_rb_cntl);
2326         rdev->ih.enabled = true;
2327 }
2328
2329 static void r600_disable_interrupts(struct radeon_device *rdev)
2330 {
2331         u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
2332         u32 ih_cntl = RREG32(IH_CNTL);
2333
2334         ih_rb_cntl &= ~IH_RB_ENABLE;
2335         ih_cntl &= ~ENABLE_INTR;
2336         WREG32(IH_RB_CNTL, ih_rb_cntl);
2337         WREG32(IH_CNTL, ih_cntl);
2338         /* set rptr, wptr to 0 */
2339         WREG32(IH_RB_RPTR, 0);
2340         WREG32(IH_RB_WPTR, 0);
2341         rdev->ih.enabled = false;
2342         rdev->ih.wptr = 0;
2343         rdev->ih.rptr = 0;
2344 }
2345
2346 static void r600_disable_interrupt_state(struct radeon_device *rdev)
2347 {
2348         u32 tmp;
2349
2350         WREG32(CP_INT_CNTL, 0);
2351         WREG32(GRBM_INT_CNTL, 0);
2352         WREG32(DxMODE_INT_MASK, 0);
2353         if (ASIC_IS_DCE3(rdev)) {
2354                 WREG32(DCE3_DACA_AUTODETECT_INT_CONTROL, 0);
2355                 WREG32(DCE3_DACB_AUTODETECT_INT_CONTROL, 0);
2356                 tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2357                 WREG32(DC_HPD1_INT_CONTROL, tmp);
2358                 tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2359                 WREG32(DC_HPD2_INT_CONTROL, tmp);
2360                 tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2361                 WREG32(DC_HPD3_INT_CONTROL, tmp);
2362                 tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2363                 WREG32(DC_HPD4_INT_CONTROL, tmp);
2364                 if (ASIC_IS_DCE32(rdev)) {
2365                         tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2366                         WREG32(DC_HPD5_INT_CONTROL, 0);
2367                         tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
2368                         WREG32(DC_HPD6_INT_CONTROL, 0);
2369                 }
2370         } else {
2371                 WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
2372                 WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
2373                 tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
2374                 WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, 0);
2375                 tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
2376                 WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, 0);
2377                 tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
2378                 WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, 0);
2379         }
2380 }
2381
2382 int r600_irq_init(struct radeon_device *rdev)
2383 {
2384         int ret = 0;
2385         int rb_bufsz;
2386         u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
2387
2388         /* allocate ring */
2389         ret = r600_ih_ring_alloc(rdev, rdev->ih.ring_size);
2390         if (ret)
2391                 return ret;
2392
2393         /* disable irqs */
2394         r600_disable_interrupts(rdev);
2395
2396         /* init rlc */
2397         ret = r600_rlc_init(rdev);
2398         if (ret) {
2399                 r600_ih_ring_fini(rdev);
2400                 return ret;
2401         }
2402
2403         /* setup interrupt control */
2404         /* set dummy read address to ring address */
2405         WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
2406         interrupt_cntl = RREG32(INTERRUPT_CNTL);
2407         /* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
2408          * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
2409          */
2410         interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
2411         /* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
2412         interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
2413         WREG32(INTERRUPT_CNTL, interrupt_cntl);
2414
2415         WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
2416         rb_bufsz = drm_order(rdev->ih.ring_size / 4);
2417
2418         ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
2419                       IH_WPTR_OVERFLOW_CLEAR |
2420                       (rb_bufsz << 1));
2421         /* WPTR writeback, not yet */
2422         /*ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;*/
2423         WREG32(IH_RB_WPTR_ADDR_LO, 0);
2424         WREG32(IH_RB_WPTR_ADDR_HI, 0);
2425
2426         WREG32(IH_RB_CNTL, ih_rb_cntl);
2427
2428         /* set rptr, wptr to 0 */
2429         WREG32(IH_RB_RPTR, 0);
2430         WREG32(IH_RB_WPTR, 0);
2431
2432         /* Default settings for IH_CNTL (disabled at first) */
2433         ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10);
2434         /* RPTR_REARM only works if msi's are enabled */
2435         if (rdev->msi_enabled)
2436                 ih_cntl |= RPTR_REARM;
2437
2438 #ifdef __BIG_ENDIAN
2439         ih_cntl |= IH_MC_SWAP(IH_MC_SWAP_32BIT);
2440 #endif
2441         WREG32(IH_CNTL, ih_cntl);
2442
2443         /* force the active interrupt state to all disabled */
2444         r600_disable_interrupt_state(rdev);
2445
2446         /* enable irqs */
2447         r600_enable_interrupts(rdev);
2448
2449         return ret;
2450 }
2451
2452 void r600_irq_fini(struct radeon_device *rdev)
2453 {
2454         r600_disable_interrupts(rdev);
2455         r600_rlc_stop(rdev);
2456         r600_ih_ring_fini(rdev);
2457 }
2458
2459 int r600_irq_set(struct radeon_device *rdev)
2460 {
2461         u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
2462         u32 mode_int = 0;
2463         u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
2464
2465         if (!rdev->irq.installed) {
2466                 WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
2467                 return -EINVAL;
2468         }
2469         /* don't enable anything if the ih is disabled */
2470         if (!rdev->ih.enabled)
2471                 return 0;
2472
2473         if (ASIC_IS_DCE3(rdev)) {
2474                 hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
2475                 hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
2476                 hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
2477                 hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
2478                 if (ASIC_IS_DCE32(rdev)) {
2479                         hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
2480                         hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
2481                 }
2482         } else {
2483                 hpd1 = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & ~DC_HPDx_INT_EN;
2484                 hpd2 = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & ~DC_HPDx_INT_EN;
2485                 hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
2486         }
2487
2488         if (rdev->irq.sw_int) {
2489                 DRM_DEBUG("r600_irq_set: sw int\n");
2490                 cp_int_cntl |= RB_INT_ENABLE;
2491         }
2492         if (rdev->irq.crtc_vblank_int[0]) {
2493                 DRM_DEBUG("r600_irq_set: vblank 0\n");
2494                 mode_int |= D1MODE_VBLANK_INT_MASK;
2495         }
2496         if (rdev->irq.crtc_vblank_int[1]) {
2497                 DRM_DEBUG("r600_irq_set: vblank 1\n");
2498                 mode_int |= D2MODE_VBLANK_INT_MASK;
2499         }
2500         if (rdev->irq.hpd[0]) {
2501                 DRM_DEBUG("r600_irq_set: hpd 1\n");
2502                 hpd1 |= DC_HPDx_INT_EN;
2503         }
2504         if (rdev->irq.hpd[1]) {
2505                 DRM_DEBUG("r600_irq_set: hpd 2\n");
2506                 hpd2 |= DC_HPDx_INT_EN;
2507         }
2508         if (rdev->irq.hpd[2]) {
2509                 DRM_DEBUG("r600_irq_set: hpd 3\n");
2510                 hpd3 |= DC_HPDx_INT_EN;
2511         }
2512         if (rdev->irq.hpd[3]) {
2513                 DRM_DEBUG("r600_irq_set: hpd 4\n");
2514                 hpd4 |= DC_HPDx_INT_EN;
2515         }
2516         if (rdev->irq.hpd[4]) {
2517                 DRM_DEBUG("r600_irq_set: hpd 5\n");
2518                 hpd5 |= DC_HPDx_INT_EN;
2519         }
2520         if (rdev->irq.hpd[5]) {
2521                 DRM_DEBUG("r600_irq_set: hpd 6\n");
2522                 hpd6 |= DC_HPDx_INT_EN;
2523         }
2524
2525         WREG32(CP_INT_CNTL, cp_int_cntl);
2526         WREG32(DxMODE_INT_MASK, mode_int);
2527         if (ASIC_IS_DCE3(rdev)) {
2528                 WREG32(DC_HPD1_INT_CONTROL, hpd1);
2529                 WREG32(DC_HPD2_INT_CONTROL, hpd2);
2530                 WREG32(DC_HPD3_INT_CONTROL, hpd3);
2531                 WREG32(DC_HPD4_INT_CONTROL, hpd4);
2532                 if (ASIC_IS_DCE32(rdev)) {
2533                         WREG32(DC_HPD5_INT_CONTROL, hpd5);
2534                         WREG32(DC_HPD6_INT_CONTROL, hpd6);
2535                 }
2536         } else {
2537                 WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
2538                 WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
2539                 WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, hpd3);
2540         }
2541
2542         return 0;
2543 }
2544
2545 static inline void r600_irq_ack(struct radeon_device *rdev,
2546                                 u32 *disp_int,
2547                                 u32 *disp_int_cont,
2548                                 u32 *disp_int_cont2)
2549 {
2550         u32 tmp;
2551
2552         if (ASIC_IS_DCE3(rdev)) {
2553                 *disp_int = RREG32(DCE3_DISP_INTERRUPT_STATUS);
2554                 *disp_int_cont = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE);
2555                 *disp_int_cont2 = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE2);
2556         } else {
2557                 *disp_int = RREG32(DISP_INTERRUPT_STATUS);
2558                 *disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
2559                 *disp_int_cont2 = 0;
2560         }
2561
2562         if (*disp_int & LB_D1_VBLANK_INTERRUPT)
2563                 WREG32(D1MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
2564         if (*disp_int & LB_D1_VLINE_INTERRUPT)
2565                 WREG32(D1MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
2566         if (*disp_int & LB_D2_VBLANK_INTERRUPT)
2567                 WREG32(D2MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
2568         if (*disp_int & LB_D2_VLINE_INTERRUPT)
2569                 WREG32(D2MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
2570         if (*disp_int & DC_HPD1_INTERRUPT) {
2571                 if (ASIC_IS_DCE3(rdev)) {
2572                         tmp = RREG32(DC_HPD1_INT_CONTROL);
2573                         tmp |= DC_HPDx_INT_ACK;
2574                         WREG32(DC_HPD1_INT_CONTROL, tmp);
2575                 } else {
2576                         tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
2577                         tmp |= DC_HPDx_INT_ACK;
2578                         WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
2579                 }
2580         }
2581         if (*disp_int & DC_HPD2_INTERRUPT) {
2582                 if (ASIC_IS_DCE3(rdev)) {
2583                         tmp = RREG32(DC_HPD2_INT_CONTROL);
2584                         tmp |= DC_HPDx_INT_ACK;
2585                         WREG32(DC_HPD2_INT_CONTROL, tmp);
2586                 } else {
2587                         tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
2588                         tmp |= DC_HPDx_INT_ACK;
2589                         WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
2590                 }
2591         }
2592         if (*disp_int_cont & DC_HPD3_INTERRUPT) {
2593                 if (ASIC_IS_DCE3(rdev)) {
2594                         tmp = RREG32(DC_HPD3_INT_CONTROL);
2595                         tmp |= DC_HPDx_INT_ACK;
2596                         WREG32(DC_HPD3_INT_CONTROL, tmp);
2597                 } else {
2598                         tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
2599                         tmp |= DC_HPDx_INT_ACK;
2600                         WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
2601                 }
2602         }
2603         if (*disp_int_cont & DC_HPD4_INTERRUPT) {
2604                 tmp = RREG32(DC_HPD4_INT_CONTROL);
2605                 tmp |= DC_HPDx_INT_ACK;
2606                 WREG32(DC_HPD4_INT_CONTROL, tmp);
2607         }
2608         if (ASIC_IS_DCE32(rdev)) {
2609                 if (*disp_int_cont2 & DC_HPD5_INTERRUPT) {
2610                         tmp = RREG32(DC_HPD5_INT_CONTROL);
2611                         tmp |= DC_HPDx_INT_ACK;
2612                         WREG32(DC_HPD5_INT_CONTROL, tmp);
2613                 }
2614                 if (*disp_int_cont2 & DC_HPD6_INTERRUPT) {
2615                         tmp = RREG32(DC_HPD5_INT_CONTROL);
2616                         tmp |= DC_HPDx_INT_ACK;
2617                         WREG32(DC_HPD6_INT_CONTROL, tmp);
2618                 }
2619         }
2620 }
2621
2622 void r600_irq_disable(struct radeon_device *rdev)
2623 {
2624         u32 disp_int, disp_int_cont, disp_int_cont2;
2625
2626         r600_disable_interrupts(rdev);
2627         /* Wait and acknowledge irq */
2628         mdelay(1);
2629         r600_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2);
2630         r600_disable_interrupt_state(rdev);
2631 }
2632
2633 static inline u32 r600_get_ih_wptr(struct radeon_device *rdev)
2634 {
2635         u32 wptr, tmp;
2636
2637         /* XXX use writeback */
2638         wptr = RREG32(IH_RB_WPTR);
2639
2640         if (wptr & RB_OVERFLOW) {
2641                 WARN_ON(1);
2642                 /* XXX deal with overflow */
2643                 DRM_ERROR("IH RB overflow\n");
2644                 tmp = RREG32(IH_RB_CNTL);
2645                 tmp |= IH_WPTR_OVERFLOW_CLEAR;
2646                 WREG32(IH_RB_CNTL, tmp);
2647         }
2648         wptr = wptr & WPTR_OFFSET_MASK;
2649
2650         return wptr;
2651 }
2652
2653 /*        r600 IV Ring
2654  * Each IV ring entry is 128 bits:
2655  * [7:0]    - interrupt source id
2656  * [31:8]   - reserved
2657  * [59:32]  - interrupt source data
2658  * [127:60]  - reserved
2659  *
2660  * The basic interrupt vector entries
2661  * are decoded as follows:
2662  * src_id  src_data  description
2663  *      1         0  D1 Vblank
2664  *      1         1  D1 Vline
2665  *      5         0  D2 Vblank
2666  *      5         1  D2 Vline
2667  *     19         0  FP Hot plug detection A
2668  *     19         1  FP Hot plug detection B
2669  *     19         2  DAC A auto-detection
2670  *     19         3  DAC B auto-detection
2671  *    176         -  CP_INT RB
2672  *    177         -  CP_INT IB1
2673  *    178         -  CP_INT IB2
2674  *    181         -  EOP Interrupt
2675  *    233         -  GUI Idle
2676  *
2677  * Note, these are based on r600 and may need to be
2678  * adjusted or added to on newer asics
2679  */
2680
2681 int r600_irq_process(struct radeon_device *rdev)
2682 {
2683         u32 wptr = r600_get_ih_wptr(rdev);
2684         u32 rptr = rdev->ih.rptr;
2685         u32 src_id, src_data;
2686         u32 last_entry = rdev->ih.ring_size - 16;
2687         u32 ring_index, disp_int, disp_int_cont, disp_int_cont2;
2688         unsigned long flags;
2689         bool queue_hotplug = false;
2690
2691         DRM_DEBUG("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
2692
2693         spin_lock_irqsave(&rdev->ih.lock, flags);
2694
2695         if (rptr == wptr) {
2696                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2697                 return IRQ_NONE;
2698         }
2699         if (rdev->shutdown) {
2700                 spin_unlock_irqrestore(&rdev->ih.lock, flags);
2701                 return IRQ_NONE;
2702         }
2703
2704 restart_ih:
2705         /* display interrupts */
2706         r600_irq_ack(rdev, &disp_int, &disp_int_cont, &disp_int_cont2);
2707
2708         rdev->ih.wptr = wptr;
2709         while (rptr != wptr) {
2710                 /* wptr/rptr are in bytes! */
2711                 ring_index = rptr / 4;
2712                 src_id =  rdev->ih.ring[ring_index] & 0xff;
2713                 src_data = rdev->ih.ring[ring_index + 1] & 0xfffffff;
2714
2715                 switch (src_id) {
2716                 case 1: /* D1 vblank/vline */
2717                         switch (src_data) {
2718                         case 0: /* D1 vblank */
2719                                 if (disp_int & LB_D1_VBLANK_INTERRUPT) {
2720                                         drm_handle_vblank(rdev->ddev, 0);
2721                                         disp_int &= ~LB_D1_VBLANK_INTERRUPT;
2722                                         DRM_DEBUG("IH: D1 vblank\n");
2723                                 }
2724                                 break;
2725                         case 1: /* D1 vline */
2726                                 if (disp_int & LB_D1_VLINE_INTERRUPT) {
2727                                         disp_int &= ~LB_D1_VLINE_INTERRUPT;
2728                                         DRM_DEBUG("IH: D1 vline\n");
2729                                 }
2730                                 break;
2731                         default:
2732                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2733                                 break;
2734                         }
2735                         break;
2736                 case 5: /* D2 vblank/vline */
2737                         switch (src_data) {
2738                         case 0: /* D2 vblank */
2739                                 if (disp_int & LB_D2_VBLANK_INTERRUPT) {
2740                                         drm_handle_vblank(rdev->ddev, 1);
2741                                         disp_int &= ~LB_D2_VBLANK_INTERRUPT;
2742                                         DRM_DEBUG("IH: D2 vblank\n");
2743                                 }
2744                                 break;
2745                         case 1: /* D1 vline */
2746                                 if (disp_int & LB_D2_VLINE_INTERRUPT) {
2747                                         disp_int &= ~LB_D2_VLINE_INTERRUPT;
2748                                         DRM_DEBUG("IH: D2 vline\n");
2749                                 }
2750                                 break;
2751                         default:
2752                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2753                                 break;
2754                         }
2755                         break;
2756                 case 19: /* HPD/DAC hotplug */
2757                         switch (src_data) {
2758                         case 0:
2759                                 if (disp_int & DC_HPD1_INTERRUPT) {
2760                                         disp_int &= ~DC_HPD1_INTERRUPT;
2761                                         queue_hotplug = true;
2762                                         DRM_DEBUG("IH: HPD1\n");
2763                                 }
2764                                 break;
2765                         case 1:
2766                                 if (disp_int & DC_HPD2_INTERRUPT) {
2767                                         disp_int &= ~DC_HPD2_INTERRUPT;
2768                                         queue_hotplug = true;
2769                                         DRM_DEBUG("IH: HPD2\n");
2770                                 }
2771                                 break;
2772                         case 4:
2773                                 if (disp_int_cont & DC_HPD3_INTERRUPT) {
2774                                         disp_int_cont &= ~DC_HPD3_INTERRUPT;
2775                                         queue_hotplug = true;
2776                                         DRM_DEBUG("IH: HPD3\n");
2777                                 }
2778                                 break;
2779                         case 5:
2780                                 if (disp_int_cont & DC_HPD4_INTERRUPT) {
2781                                         disp_int_cont &= ~DC_HPD4_INTERRUPT;
2782                                         queue_hotplug = true;
2783                                         DRM_DEBUG("IH: HPD4\n");
2784                                 }
2785                                 break;
2786                         case 10:
2787                                 if (disp_int_cont2 & DC_HPD5_INTERRUPT) {
2788                                         disp_int_cont &= ~DC_HPD5_INTERRUPT;
2789                                         queue_hotplug = true;
2790                                         DRM_DEBUG("IH: HPD5\n");
2791                                 }
2792                                 break;
2793                         case 12:
2794                                 if (disp_int_cont2 & DC_HPD6_INTERRUPT) {
2795                                         disp_int_cont &= ~DC_HPD6_INTERRUPT;
2796                                         queue_hotplug = true;
2797                                         DRM_DEBUG("IH: HPD6\n");
2798                                 }
2799                                 break;
2800                         default:
2801                                 DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2802                                 break;
2803                         }
2804                         break;
2805                 case 176: /* CP_INT in ring buffer */
2806                 case 177: /* CP_INT in IB1 */
2807                 case 178: /* CP_INT in IB2 */
2808                         DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
2809                         radeon_fence_process(rdev);
2810                         break;
2811                 case 181: /* CP EOP event */
2812                         DRM_DEBUG("IH: CP EOP\n");
2813                         break;
2814                 default:
2815                         DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
2816                         break;
2817                 }
2818
2819                 /* wptr/rptr are in bytes! */
2820                 if (rptr == last_entry)
2821                         rptr = 0;
2822                 else
2823                         rptr += 16;
2824         }
2825         /* make sure wptr hasn't changed while processing */
2826         wptr = r600_get_ih_wptr(rdev);
2827         if (wptr != rdev->ih.wptr)
2828                 goto restart_ih;
2829         if (queue_hotplug)
2830                 queue_work(rdev->wq, &rdev->hotplug_work);
2831         rdev->ih.rptr = rptr;
2832         WREG32(IH_RB_RPTR, rdev->ih.rptr);
2833         spin_unlock_irqrestore(&rdev->ih.lock, flags);
2834         return IRQ_HANDLED;
2835 }
2836
2837 /*
2838  * Debugfs info
2839  */
2840 #if defined(CONFIG_DEBUG_FS)
2841
2842 static int r600_debugfs_cp_ring_info(struct seq_file *m, void *data)
2843 {
2844         struct drm_info_node *node = (struct drm_info_node *) m->private;
2845         struct drm_device *dev = node->minor->dev;
2846         struct radeon_device *rdev = dev->dev_private;
2847         unsigned count, i, j;
2848
2849         radeon_ring_free_size(rdev);
2850         count = (rdev->cp.ring_size / 4) - rdev->cp.ring_free_dw;
2851         seq_printf(m, "CP_STAT 0x%08x\n", RREG32(CP_STAT));
2852         seq_printf(m, "CP_RB_WPTR 0x%08x\n", RREG32(CP_RB_WPTR));
2853         seq_printf(m, "CP_RB_RPTR 0x%08x\n", RREG32(CP_RB_RPTR));
2854         seq_printf(m, "driver's copy of the CP_RB_WPTR 0x%08x\n", rdev->cp.wptr);
2855         seq_printf(m, "driver's copy of the CP_RB_RPTR 0x%08x\n", rdev->cp.rptr);
2856         seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw);
2857         seq_printf(m, "%u dwords in ring\n", count);
2858         i = rdev->cp.rptr;
2859         for (j = 0; j <= count; j++) {
2860                 seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]);
2861                 i = (i + 1) & rdev->cp.ptr_mask;
2862         }
2863         return 0;
2864 }
2865
2866 static int r600_debugfs_mc_info(struct seq_file *m, void *data)
2867 {
2868         struct drm_info_node *node = (struct drm_info_node *) m->private;
2869         struct drm_device *dev = node->minor->dev;
2870         struct radeon_device *rdev = dev->dev_private;
2871
2872         DREG32_SYS(m, rdev, R_000E50_SRBM_STATUS);
2873         DREG32_SYS(m, rdev, VM_L2_STATUS);
2874         return 0;
2875 }
2876
2877 static struct drm_info_list r600_mc_info_list[] = {
2878         {"r600_mc_info", r600_debugfs_mc_info, 0, NULL},
2879         {"r600_ring_info", r600_debugfs_cp_ring_info, 0, NULL},
2880 };
2881 #endif
2882
2883 int r600_debugfs_mc_info_init(struct radeon_device *rdev)
2884 {
2885 #if defined(CONFIG_DEBUG_FS)
2886         return radeon_debugfs_add_files(rdev, r600_mc_info_list, ARRAY_SIZE(r600_mc_info_list));
2887 #else
2888         return 0;
2889 #endif
2890 }