drivers/gpu/drm/radeon/rs600.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 /* RS600 / Radeon X1250/X1270 integrated GPU
  29  *
  30  * This file gather function specific to RS600 which is the IGP of
  31  * the X1250/X1270 family supporting intel CPU (while RS690/RS740
  32  * is the X1250/X1270 supporting AMD CPU). The display engine are
  33  * the avivo one, bios is an atombios, 3D block are the one of the
  34  * R4XX family. The GART is different from the RS400 one and is very
  35  * close to the one of the R600 family (R600 likely being an evolution
  36  * of the RS600 GART block).
  37  */
  38 #include "drmP.h"
  39 #include "radeon.h"
  40 #include "atom.h"
  41 #include "rs600d.h"
  42
  43 #include "rs600_reg_safe.h"
  44
  45 void rs600_gpu_init(struct radeon_device *rdev);
  46 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
  47
  48 int rs600_mc_init(struct radeon_device *rdev)
  49 {
  50         /* read back the MC value from the hw */
  51         int r;
  52         u32 tmp;
  53
  54         /* Setup GPU memory space */
  55         tmp = RREG32_MC(R_000004_MC_FB_LOCATION);
  56         rdev->mc.vram_location = G_000004_MC_FB_START(tmp) << 16;
  57         rdev->mc.gtt_location = 0xffffffffUL;
  58         r = radeon_mc_setup(rdev);
  59         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
  60         if (r)
  61                 return r;
  62         return 0;
  63 }
  64
  65 /* hpd for digital panel detect/disconnect */
  66 bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
  67 {
  68         u32 tmp;
  69         bool connected = false;
  70
  71         switch (hpd) {
  72         case RADEON_HPD_1:
  73                 tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
  74                 if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
  75                         connected = true;
  76                 break;
  77         case RADEON_HPD_2:
  78                 tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
  79                 if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
  80                         connected = true;
  81                 break;
  82         default:
  83                 break;
  84         }
  85         return connected;
  86 }
  87
  88 void rs600_hpd_set_polarity(struct radeon_device *rdev,
  89                             enum radeon_hpd_id hpd)
  90 {
  91         u32 tmp;
  92         bool connected = rs600_hpd_sense(rdev, hpd);
  93
  94         switch (hpd) {
  95         case RADEON_HPD_1:
  96                 tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
  97                 if (connected)
  98                         tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
  99                 else
 100                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 101                 WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 102                 break;
 103         case RADEON_HPD_2:
 104                 tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 105                 if (connected)
 106                         tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 107                 else
 108                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 109                 WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 110                 break;
 111         default:
 112                 break;
 113         }
 114 }
 115
 116 void rs600_hpd_init(struct radeon_device *rdev)
 117 {
 118         struct drm_device *dev = rdev->ddev;
 119         struct drm_connector *connector;
 120
 121         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 122                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 123                 switch (radeon_connector->hpd.hpd) {
 124                 case RADEON_HPD_1:
 125                         WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 126                                S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
 127                         rdev->irq.hpd[0] = true;
 128                         break;
 129                 case RADEON_HPD_2:
 130                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 131                                S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
 132                         rdev->irq.hpd[1] = true;
 133                         break;
 134                 default:
 135                         break;
 136                 }
 137         }
 138         if (rdev->irq.installed)
 139                 rs600_irq_set(rdev);
 140 }
 141
 142 void rs600_hpd_fini(struct radeon_device *rdev)
 143 {
 144         struct drm_device *dev = rdev->ddev;
 145         struct drm_connector *connector;
 146
 147         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 148                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 149                 switch (radeon_connector->hpd.hpd) {
 150                 case RADEON_HPD_1:
 151                         WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 152                                S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
 153                         rdev->irq.hpd[0] = false;
 154                         break;
 155                 case RADEON_HPD_2:
 156                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 157                                S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
 158                         rdev->irq.hpd[1] = false;
 159                         break;
 160                 default:
 161                         break;
 162                 }
 163         }
 164 }
 165
 166 /*
 167  * GART.
 168  */
 169 void rs600_gart_tlb_flush(struct radeon_device *rdev)
 170 {
 171         uint32_t tmp;
 172
 173         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 174         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 175         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 176
 177         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 178         tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) & S_000100_INVALIDATE_L2_CACHE(1);
 179         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 180
 181         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 182         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 183         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 184         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 185 }
 186
 187 int rs600_gart_init(struct radeon_device *rdev)
 188 {
 189         int r;
 190
 191         if (rdev->gart.table.vram.robj) {
 192                 WARN(1, "RS600 GART already initialized.\n");
 193                 return 0;
 194         }
 195         /* Initialize common gart structure */
 196         r = radeon_gart_init(rdev);
 197         if (r) {
 198                 return r;
 199         }
 200         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 201         return radeon_gart_table_vram_alloc(rdev);
 202 }
 203
 204 int rs600_gart_enable(struct radeon_device *rdev)
 205 {
 206         u32 tmp;
 207         int r, i;
 208
 209         if (rdev->gart.table.vram.robj == NULL) {
 210                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 211                 return -EINVAL;
 212         }
 213         r = radeon_gart_table_vram_pin(rdev);
 214         if (r)
 215                 return r;
 216         /* Enable bus master */
 217         tmp = RREG32(R_00004C_BUS_CNTL) & C_00004C_BUS_MASTER_DIS;
 218         WREG32(R_00004C_BUS_CNTL, tmp);
 219         /* FIXME: setup default page */
 220         WREG32_MC(R_000100_MC_PT0_CNTL,
 221                   (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
 222                    S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
 223
 224         for (i = 0; i < 19; i++) {
 225                 WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
 226                           S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
 227                           S_00016C_SYSTEM_ACCESS_MODE_MASK(
 228                                   V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
 229                           S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
 230                                   V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
 231                           S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
 232                           S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
 233                           S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
 234         }
 235         /* enable first context */
 236         WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
 237                   S_000102_ENABLE_PAGE_TABLE(1) |
 238                   S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
 239
 240         /* disable all other contexts */
 241         for (i = 1; i < 8; i++)
 242                 WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
 243
 244         /* setup the page table */
 245         WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
 246                   rdev->gart.table_addr);
 247         WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
 248         WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
 249         WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
 250
 251         /* System context maps to VRAM space */
 252         WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
 253         WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
 254
 255         /* enable page tables */
 256         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 257         WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
 258         tmp = RREG32_MC(R_000009_MC_CNTL1);
 259         WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
 260         rs600_gart_tlb_flush(rdev);
 261         rdev->gart.ready = true;
 262         return 0;
 263 }
 264
 265 void rs600_gart_disable(struct radeon_device *rdev)
 266 {
 267         u32 tmp;
 268         int r;
 269
 270         /* FIXME: disable out of gart access */
 271         WREG32_MC(R_000100_MC_PT0_CNTL, 0);
 272         tmp = RREG32_MC(R_000009_MC_CNTL1);
 273         WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
 274         if (rdev->gart.table.vram.robj) {
 275                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 276                 if (r == 0) {
 277                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 278                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 279                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 280                 }
 281         }
 282 }
 283
 284 void rs600_gart_fini(struct radeon_device *rdev)
 285 {
 286         rs600_gart_disable(rdev);
 287         radeon_gart_table_vram_free(rdev);
 288         radeon_gart_fini(rdev);
 289 }
 290
 291 #define R600_PTE_VALID     (1 << 0)
 292 #define R600_PTE_SYSTEM    (1 << 1)
 293 #define R600_PTE_SNOOPED   (1 << 2)
 294 #define R600_PTE_READABLE  (1 << 5)
 295 #define R600_PTE_WRITEABLE (1 << 6)
 296
 297 int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 298 {
 299         void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
 300
 301         if (i < 0 || i > rdev->gart.num_gpu_pages) {
 302                 return -EINVAL;
 303         }
 304         addr = addr & 0xFFFFFFFFFFFFF000ULL;
 305         addr |= R600_PTE_VALID | R600_PTE_SYSTEM | R600_PTE_SNOOPED;
 306         addr |= R600_PTE_READABLE | R600_PTE_WRITEABLE;
 307         writeq(addr, ((void __iomem *)ptr) + (i * 8));
 308         return 0;
 309 }
 310
 311 int rs600_irq_set(struct radeon_device *rdev)
 312 {
 313         uint32_t tmp = 0;
 314         uint32_t mode_int = 0;
 315         u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
 316                 ~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 317         u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
 318                 ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 319
 320         if (!rdev->irq.installed) {
 321                 WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
 322                 WREG32(R_000040_GEN_INT_CNTL, 0);
 323                 return -EINVAL;
 324         }
 325         if (rdev->irq.sw_int) {
 326                 tmp |= S_000040_SW_INT_EN(1);
 327         }
 328         if (rdev->irq.crtc_vblank_int[0]) {
 329                 mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
 330         }
 331         if (rdev->irq.crtc_vblank_int[1]) {
 332                 mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
 333         }
 334         if (rdev->irq.hpd[0]) {
 335                 hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 336         }
 337         if (rdev->irq.hpd[1]) {
 338                 hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 339         }
 340         WREG32(R_000040_GEN_INT_CNTL, tmp);
 341         WREG32(R_006540_DxMODE_INT_MASK, mode_int);
 342         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
 343         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 344         return 0;
 345 }
 346
 347 static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_int)
 348 {
 349         uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
 350         uint32_t irq_mask = ~C_000044_SW_INT;
 351         u32 tmp;
 352
 353         if (G_000044_DISPLAY_INT_STAT(irqs)) {
 354                 *r500_disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
 355                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(*r500_disp_int)) {
 356                         WREG32(R_006534_D1MODE_VBLANK_STATUS,
 357                                 S_006534_D1MODE_VBLANK_ACK(1));
 358                 }
 359                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(*r500_disp_int)) {
 360                         WREG32(R_006D34_D2MODE_VBLANK_STATUS,
 361                                 S_006D34_D2MODE_VBLANK_ACK(1));
 362                 }
 363                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(*r500_disp_int)) {
 364                         tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 365                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
 366                         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 367                 }
 368                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(*r500_disp_int)) {
 369                         tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 370                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
 371                         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 372                 }
 373         } else {
 374                 *r500_disp_int = 0;
 375         }
 376
 377         if (irqs) {
 378                 WREG32(R_000044_GEN_INT_STATUS, irqs);
 379         }
 380         return irqs & irq_mask;
 381 }
 382
 383 void rs600_irq_disable(struct radeon_device *rdev)
 384 {
 385         u32 tmp;
 386
 387         WREG32(R_000040_GEN_INT_CNTL, 0);
 388         WREG32(R_006540_DxMODE_INT_MASK, 0);
 389         /* Wait and acknowledge irq */
 390         mdelay(1);
 391         rs600_irq_ack(rdev, &tmp);
 392 }
 393
 394 int rs600_irq_process(struct radeon_device *rdev)
 395 {
 396         uint32_t status, msi_rearm;
 397         uint32_t r500_disp_int;
 398         bool queue_hotplug = false;
 399
 400         status = rs600_irq_ack(rdev, &r500_disp_int);
 401         if (!status && !r500_disp_int) {
 402                 return IRQ_NONE;
 403         }
 404         while (status || r500_disp_int) {
 405                 /* SW interrupt */
 406                 if (G_000044_SW_INT(status))
 407                         radeon_fence_process(rdev);
 408                 /* Vertical blank interrupts */
 409                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(r500_disp_int))
 410                         drm_handle_vblank(rdev->ddev, 0);
 411                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(r500_disp_int))
 412                         drm_handle_vblank(rdev->ddev, 1);
 413                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(r500_disp_int)) {
 414                         queue_hotplug = true;
 415                         DRM_DEBUG("HPD1\n");
 416                 }
 417                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(r500_disp_int)) {
 418                         queue_hotplug = true;
 419                         DRM_DEBUG("HPD2\n");
 420                 }
 421                 status = rs600_irq_ack(rdev, &r500_disp_int);
 422         }
 423         if (queue_hotplug)
 424                 queue_work(rdev->wq, &rdev->hotplug_work);
 425         if (rdev->msi_enabled) {
 426                 switch (rdev->family) {
 427                 case CHIP_RS600:
 428                 case CHIP_RS690:
 429                 case CHIP_RS740:
 430                         msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
 431                         WREG32(RADEON_BUS_CNTL, msi_rearm);
 432                         WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
 433                         break;
 434                 default:
 435                         msi_rearm = RREG32(RADEON_MSI_REARM_EN) & ~RV370_MSI_REARM_EN;
 436                         WREG32(RADEON_MSI_REARM_EN, msi_rearm);
 437                         WREG32(RADEON_MSI_REARM_EN, msi_rearm | RV370_MSI_REARM_EN);
 438                         break;
 439                 }
 440         }
 441         return IRQ_HANDLED;
 442 }
 443
 444 u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
 445 {
 446         if (crtc == 0)
 447                 return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
 448         else
 449                 return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
 450 }
 451
 452 int rs600_mc_wait_for_idle(struct radeon_device *rdev)
 453 {
 454         unsigned i;
 455
 456         for (i = 0; i < rdev->usec_timeout; i++) {
 457                 if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
 458                         return 0;
 459                 udelay(1);
 460         }
 461         return -1;
 462 }
 463
 464 void rs600_gpu_init(struct radeon_device *rdev)
 465 {
 466         r100_hdp_reset(rdev);
 467         r420_pipes_init(rdev);
 468         /* Wait for mc idle */
 469         if (rs600_mc_wait_for_idle(rdev))
 470                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 471 }
 472
 473 void rs600_vram_info(struct radeon_device *rdev)
 474 {
 475         rdev->mc.vram_is_ddr = true;
 476         rdev->mc.vram_width = 128;
 477
 478         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 479         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 480
 481         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 482         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 483
 484         if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
 485                 rdev->mc.mc_vram_size = rdev->mc.aper_size;
 486
 487         if (rdev->mc.real_vram_size > rdev->mc.aper_size)
 488                 rdev->mc.real_vram_size = rdev->mc.aper_size;
 489 }
 490
 491 void rs600_bandwidth_update(struct radeon_device *rdev)
 492 {
 493         /* FIXME: implement, should this be like rs690 ? */
 494 }
 495
 496 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 497 {
 498         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 499                 S_000070_MC_IND_CITF_ARB0(1));
 500         return RREG32(R_000074_MC_IND_DATA);
 501 }
 502
 503 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 504 {
 505         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 506                 S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
 507         WREG32(R_000074_MC_IND_DATA, v);
 508 }
 509
 510 void rs600_debugfs(struct radeon_device *rdev)
 511 {
 512         if (r100_debugfs_rbbm_init(rdev))
 513                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 514 }
 515
 516 void rs600_set_safe_registers(struct radeon_device *rdev)
 517 {
 518         rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
 519         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
 520 }
 521
 522 static void rs600_mc_program(struct radeon_device *rdev)
 523 {
 524         struct rv515_mc_save save;
 525
 526         /* Stops all mc clients */
 527         rv515_mc_stop(rdev, &save);
 528
 529         /* Wait for mc idle */
 530         if (rs600_mc_wait_for_idle(rdev))
 531                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 532
 533         /* FIXME: What does AGP means for such chipset ? */
 534         WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
 535         WREG32_MC(R_000006_AGP_BASE, 0);
 536         WREG32_MC(R_000007_AGP_BASE_2, 0);
 537         /* Program MC */
 538         WREG32_MC(R_000004_MC_FB_LOCATION,
 539                         S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
 540                         S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
 541         WREG32(R_000134_HDP_FB_LOCATION,
 542                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 543
 544         rv515_mc_resume(rdev, &save);
 545 }
 546
 547 static int rs600_startup(struct radeon_device *rdev)
 548 {
 549         int r;
 550
 551         rs600_mc_program(rdev);
 552         /* Resume clock */
 553         rv515_clock_startup(rdev);
 554         /* Initialize GPU configuration (# pipes, ...) */
 555         rs600_gpu_init(rdev);
 556         /* Initialize GART (initialize after TTM so we can allocate
 557          * memory through TTM but finalize after TTM) */
 558         r = rs600_gart_enable(rdev);
 559         if (r)
 560                 return r;
 561         /* Enable IRQ */
 562         rs600_irq_set(rdev);
 563         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 564         /* 1M ring buffer */
 565         r = r100_cp_init(rdev, 1024 * 1024);
 566         if (r) {
 567                 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
 568                 return r;
 569         }
 570         r = r100_wb_init(rdev);
 571         if (r)
 572                 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
 573         r = r100_ib_init(rdev);
 574         if (r) {
 575                 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
 576                 return r;
 577         }
 578         return 0;
 579 }
 580
 581 int rs600_resume(struct radeon_device *rdev)
 582 {
 583         /* Make sur GART are not working */
 584         rs600_gart_disable(rdev);
 585         /* Resume clock before doing reset */
 586         rv515_clock_startup(rdev);
 587         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 588         if (radeon_gpu_reset(rdev)) {
 589                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 590                         RREG32(R_000E40_RBBM_STATUS),
 591                         RREG32(R_0007C0_CP_STAT));
 592         }
 593         /* post */
 594         atom_asic_init(rdev->mode_info.atom_context);
 595         /* Resume clock after posting */
 596         rv515_clock_startup(rdev);
 597         /* Initialize surface registers */
 598         radeon_surface_init(rdev);
 599         return rs600_startup(rdev);
 600 }
 601
 602 int rs600_suspend(struct radeon_device *rdev)
 603 {
 604         r100_cp_disable(rdev);
 605         r100_wb_disable(rdev);
 606         rs600_irq_disable(rdev);
 607         rs600_gart_disable(rdev);
 608         return 0;
 609 }
 610
 611 void rs600_fini(struct radeon_device *rdev)
 612 {
 613         rs600_suspend(rdev);
 614         r100_cp_fini(rdev);
 615         r100_wb_fini(rdev);
 616         r100_ib_fini(rdev);
 617         radeon_gem_fini(rdev);
 618         rs600_gart_fini(rdev);
 619         radeon_irq_kms_fini(rdev);
 620         radeon_fence_driver_fini(rdev);
 621         radeon_bo_fini(rdev);
 622         radeon_atombios_fini(rdev);
 623         kfree(rdev->bios);
 624         rdev->bios = NULL;
 625 }
 626
 627 int rs600_init(struct radeon_device *rdev)
 628 {
 629         int r;
 630
 631         /* Disable VGA */
 632         rv515_vga_render_disable(rdev);
 633         /* Initialize scratch registers */
 634         radeon_scratch_init(rdev);
 635         /* Initialize surface registers */
 636         radeon_surface_init(rdev);
 637         /* BIOS */
 638         if (!radeon_get_bios(rdev)) {
 639                 if (ASIC_IS_AVIVO(rdev))
 640                         return -EINVAL;
 641         }
 642         if (rdev->is_atom_bios) {
 643                 r = radeon_atombios_init(rdev);
 644                 if (r)
 645                         return r;
 646         } else {
 647                 dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
 648                 return -EINVAL;
 649         }
 650         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 651         if (radeon_gpu_reset(rdev)) {
 652                 dev_warn(rdev->dev,
 653                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 654                         RREG32(R_000E40_RBBM_STATUS),
 655                         RREG32(R_0007C0_CP_STAT));
 656         }
 657         /* check if cards are posted or not */
 658         if (radeon_boot_test_post_card(rdev) == false)
 659                 return -EINVAL;
 660
 661         /* Initialize clocks */
 662         radeon_get_clock_info(rdev->ddev);
 663         /* Initialize power management */
 664         radeon_pm_init(rdev);
 665         /* Get vram informations */
 666         rs600_vram_info(rdev);
 667         /* Initialize memory controller (also test AGP) */
 668         r = rs600_mc_init(rdev);
 669         if (r)
 670                 return r;
 671         rs600_debugfs(rdev);
 672         /* Fence driver */
 673         r = radeon_fence_driver_init(rdev);
 674         if (r)
 675                 return r;
 676         r = radeon_irq_kms_init(rdev);
 677         if (r)
 678                 return r;
 679         /* Memory manager */
 680         r = radeon_bo_init(rdev);
 681         if (r)
 682                 return r;
 683         r = rs600_gart_init(rdev);
 684         if (r)
 685                 return r;
 686         rs600_set_safe_registers(rdev);
 687         rdev->accel_working = true;
 688         r = rs600_startup(rdev);
 689         if (r) {
 690                 /* Somethings want wront with the accel init stop accel */
 691                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 692                 rs600_suspend(rdev);
 693                 r100_cp_fini(rdev);
 694                 r100_wb_fini(rdev);
 695                 r100_ib_fini(rdev);
 696                 rs600_gart_fini(rdev);
 697                 radeon_irq_kms_fini(rdev);
 698                 rdev->accel_working = false;
 699         }
 700         return 0;
 701 }