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 "radeon_asic.h"
  41 #include "atom.h"
  42 #include "rs600d.h"
  43
  44 #include "rs600_reg_safe.h"
  45
  46 void rs600_gpu_init(struct radeon_device *rdev);
  47 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
  48
  49 void rs600_pm_misc(struct radeon_device *rdev)
  50 {
  51         int requested_index = rdev->pm.requested_power_state_index;
  52         struct radeon_power_state *ps = &rdev->pm.power_state[requested_index];
  53         struct radeon_voltage *voltage = &ps->clock_info[0].voltage;
  54         u32 tmp, dyn_pwrmgt_sclk_length, dyn_sclk_vol_cntl;
  55         u32 hdp_dyn_cntl, /*mc_host_dyn_cntl,*/ dyn_backbias_cntl;
  56
  57         if ((voltage->type == VOLTAGE_GPIO) && (voltage->gpio.valid)) {
  58                 if (ps->misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) {
  59                         tmp = RREG32(voltage->gpio.reg);
  60                         if (voltage->active_high)
  61                                 tmp |= voltage->gpio.mask;
  62                         else
  63                                 tmp &= ~(voltage->gpio.mask);
  64                         WREG32(voltage->gpio.reg, tmp);
  65                         if (voltage->delay)
  66                                 udelay(voltage->delay);
  67                 } else {
  68                         tmp = RREG32(voltage->gpio.reg);
  69                         if (voltage->active_high)
  70                                 tmp &= ~voltage->gpio.mask;
  71                         else
  72                                 tmp |= voltage->gpio.mask;
  73                         WREG32(voltage->gpio.reg, tmp);
  74                         if (voltage->delay)
  75                                 udelay(voltage->delay);
  76                 }
  77         } else if (voltage->type == VOLTAGE_VDDC)
  78                 radeon_atom_set_voltage(rdev, voltage->vddc_id);
  79
  80         dyn_pwrmgt_sclk_length = RREG32_PLL(DYN_PWRMGT_SCLK_LENGTH);
  81         dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_HILEN(0xf);
  82         dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_LOLEN(0xf);
  83         if (ps->misc & ATOM_PM_MISCINFO_ASIC_REDUCED_SPEED_SCLK_EN) {
  84                 if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_2) {
  85                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(2);
  86                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(2);
  87                 } else if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_4) {
  88                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(4);
  89                         dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(4);
  90                 }
  91         } else {
  92                 dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(1);
  93                 dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(1);
  94         }
  95         WREG32_PLL(DYN_PWRMGT_SCLK_LENGTH, dyn_pwrmgt_sclk_length);
  96
  97         dyn_sclk_vol_cntl = RREG32_PLL(DYN_SCLK_VOL_CNTL);
  98         if (ps->misc & ATOM_PM_MISCINFO_ASIC_DYNAMIC_VOLTAGE_EN) {
  99                 dyn_sclk_vol_cntl |= IO_CG_VOLTAGE_DROP;
 100                 if (voltage->delay) {
 101                         dyn_sclk_vol_cntl |= VOLTAGE_DROP_SYNC;
 102                         dyn_sclk_vol_cntl |= VOLTAGE_DELAY_SEL(voltage->delay);
 103                 } else
 104                         dyn_sclk_vol_cntl &= ~VOLTAGE_DROP_SYNC;
 105         } else
 106                 dyn_sclk_vol_cntl &= ~IO_CG_VOLTAGE_DROP;
 107         WREG32_PLL(DYN_SCLK_VOL_CNTL, dyn_sclk_vol_cntl);
 108
 109         hdp_dyn_cntl = RREG32_PLL(HDP_DYN_CNTL);
 110         if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_HDP_BLOCK_EN)
 111                 hdp_dyn_cntl &= ~HDP_FORCEON;
 112         else
 113                 hdp_dyn_cntl |= HDP_FORCEON;
 114         WREG32_PLL(HDP_DYN_CNTL, hdp_dyn_cntl);
 115 #if 0
 116         /* mc_host_dyn seems to cause hangs from time to time */
 117         mc_host_dyn_cntl = RREG32_PLL(MC_HOST_DYN_CNTL);
 118         if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_MC_HOST_BLOCK_EN)
 119                 mc_host_dyn_cntl &= ~MC_HOST_FORCEON;
 120         else
 121                 mc_host_dyn_cntl |= MC_HOST_FORCEON;
 122         WREG32_PLL(MC_HOST_DYN_CNTL, mc_host_dyn_cntl);
 123 #endif
 124         dyn_backbias_cntl = RREG32_PLL(DYN_BACKBIAS_CNTL);
 125         if (ps->misc & ATOM_PM_MISCINFO2_DYNAMIC_BACK_BIAS_EN)
 126                 dyn_backbias_cntl |= IO_CG_BACKBIAS_EN;
 127         else
 128                 dyn_backbias_cntl &= ~IO_CG_BACKBIAS_EN;
 129         WREG32_PLL(DYN_BACKBIAS_CNTL, dyn_backbias_cntl);
 130
 131         /* set pcie lanes */
 132         if ((rdev->flags & RADEON_IS_PCIE) &&
 133             !(rdev->flags & RADEON_IS_IGP) &&
 134             rdev->asic->set_pcie_lanes &&
 135             (ps->pcie_lanes !=
 136              rdev->pm.power_state[rdev->pm.current_power_state_index].pcie_lanes)) {
 137                 radeon_set_pcie_lanes(rdev,
 138                                       ps->pcie_lanes);
 139                 DRM_DEBUG("Setting: p: %d\n", ps->pcie_lanes);
 140         }
 141 }
 142
 143 void rs600_pm_prepare(struct radeon_device *rdev)
 144 {
 145         struct drm_device *ddev = rdev->ddev;
 146         struct drm_crtc *crtc;
 147         struct radeon_crtc *radeon_crtc;
 148         u32 tmp;
 149
 150         /* disable any active CRTCs */
 151         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 152                 radeon_crtc = to_radeon_crtc(crtc);
 153                 if (radeon_crtc->enabled) {
 154                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 155                         tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 156                         WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 157                 }
 158         }
 159 }
 160
 161 void rs600_pm_finish(struct radeon_device *rdev)
 162 {
 163         struct drm_device *ddev = rdev->ddev;
 164         struct drm_crtc *crtc;
 165         struct radeon_crtc *radeon_crtc;
 166         u32 tmp;
 167
 168         /* enable any active CRTCs */
 169         list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 170                 radeon_crtc = to_radeon_crtc(crtc);
 171                 if (radeon_crtc->enabled) {
 172                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 173                         tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 174                         WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 175                 }
 176         }
 177 }
 178
 179 /* hpd for digital panel detect/disconnect */
 180 bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 181 {
 182         u32 tmp;
 183         bool connected = false;
 184
 185         switch (hpd) {
 186         case RADEON_HPD_1:
 187                 tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
 188                 if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
 189                         connected = true;
 190                 break;
 191         case RADEON_HPD_2:
 192                 tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
 193                 if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
 194                         connected = true;
 195                 break;
 196         default:
 197                 break;
 198         }
 199         return connected;
 200 }
 201
 202 void rs600_hpd_set_polarity(struct radeon_device *rdev,
 203                             enum radeon_hpd_id hpd)
 204 {
 205         u32 tmp;
 206         bool connected = rs600_hpd_sense(rdev, hpd);
 207
 208         switch (hpd) {
 209         case RADEON_HPD_1:
 210                 tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 211                 if (connected)
 212                         tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 213                 else
 214                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 215                 WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 216                 break;
 217         case RADEON_HPD_2:
 218                 tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 219                 if (connected)
 220                         tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 221                 else
 222                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 223                 WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 224                 break;
 225         default:
 226                 break;
 227         }
 228 }
 229
 230 void rs600_hpd_init(struct radeon_device *rdev)
 231 {
 232         struct drm_device *dev = rdev->ddev;
 233         struct drm_connector *connector;
 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(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 240                                S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
 241                         rdev->irq.hpd[0] = true;
 242                         break;
 243                 case RADEON_HPD_2:
 244                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 245                                S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
 246                         rdev->irq.hpd[1] = true;
 247                         break;
 248                 default:
 249                         break;
 250                 }
 251         }
 252         if (rdev->irq.installed)
 253                 rs600_irq_set(rdev);
 254 }
 255
 256 void rs600_hpd_fini(struct radeon_device *rdev)
 257 {
 258         struct drm_device *dev = rdev->ddev;
 259         struct drm_connector *connector;
 260
 261         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 262                 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 263                 switch (radeon_connector->hpd.hpd) {
 264                 case RADEON_HPD_1:
 265                         WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 266                                S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
 267                         rdev->irq.hpd[0] = false;
 268                         break;
 269                 case RADEON_HPD_2:
 270                         WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 271                                S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
 272                         rdev->irq.hpd[1] = false;
 273                         break;
 274                 default:
 275                         break;
 276                 }
 277         }
 278 }
 279
 280 void rs600_bm_disable(struct radeon_device *rdev)
 281 {
 282         u32 tmp;
 283
 284         /* disable bus mastering */
 285         pci_read_config_word(rdev->pdev, 0x4, (u16*)&tmp);
 286         pci_write_config_word(rdev->pdev, 0x4, tmp & 0xFFFB);
 287         mdelay(1);
 288 }
 289
 290 int rs600_asic_reset(struct radeon_device *rdev)
 291 {
 292         u32 status, tmp;
 293
 294         struct rv515_mc_save save;
 295
 296         /* Stops all mc clients */
 297         rv515_mc_stop(rdev, &save);
 298         status = RREG32(R_000E40_RBBM_STATUS);
 299         if (!G_000E40_GUI_ACTIVE(status)) {
 300                 return 0;
 301         }
 302         status = RREG32(R_000E40_RBBM_STATUS);
 303         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 304         /* stop CP */
 305         WREG32(RADEON_CP_CSQ_CNTL, 0);
 306         tmp = RREG32(RADEON_CP_RB_CNTL);
 307         WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
 308         WREG32(RADEON_CP_RB_RPTR_WR, 0);
 309         WREG32(RADEON_CP_RB_WPTR, 0);
 310         WREG32(RADEON_CP_RB_CNTL, tmp);
 311         pci_save_state(rdev->pdev);
 312         /* disable bus mastering */
 313         rs600_bm_disable(rdev);
 314         /* reset GA+VAP */
 315         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
 316                                         S_0000F0_SOFT_RESET_GA(1));
 317         RREG32(R_0000F0_RBBM_SOFT_RESET);
 318         mdelay(500);
 319         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 320         mdelay(1);
 321         status = RREG32(R_000E40_RBBM_STATUS);
 322         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 323         /* reset CP */
 324         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
 325         RREG32(R_0000F0_RBBM_SOFT_RESET);
 326         mdelay(500);
 327         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 328         mdelay(1);
 329         status = RREG32(R_000E40_RBBM_STATUS);
 330         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 331         /* reset MC */
 332         WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
 333         RREG32(R_0000F0_RBBM_SOFT_RESET);
 334         mdelay(500);
 335         WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 336         mdelay(1);
 337         status = RREG32(R_000E40_RBBM_STATUS);
 338         dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 339         /* restore PCI & busmastering */
 340         pci_restore_state(rdev->pdev);
 341         /* Check if GPU is idle */
 342         if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
 343                 dev_err(rdev->dev, "failed to reset GPU\n");
 344                 rdev->gpu_lockup = true;
 345                 return -1;
 346         }
 347         rv515_mc_resume(rdev, &save);
 348         dev_info(rdev->dev, "GPU reset succeed\n");
 349         return 0;
 350 }
 351
 352 /*
 353  * GART.
 354  */
 355 void rs600_gart_tlb_flush(struct radeon_device *rdev)
 356 {
 357         uint32_t tmp;
 358
 359         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 360         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 361         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 362
 363         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 364         tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
 365         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 366
 367         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 368         tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 369         WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 370         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 371 }
 372
 373 int rs600_gart_init(struct radeon_device *rdev)
 374 {
 375         int r;
 376
 377         if (rdev->gart.table.vram.robj) {
 378                 WARN(1, "RS600 GART already initialized.\n");
 379                 return 0;
 380         }
 381         /* Initialize common gart structure */
 382         r = radeon_gart_init(rdev);
 383         if (r) {
 384                 return r;
 385         }
 386         rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 387         return radeon_gart_table_vram_alloc(rdev);
 388 }
 389
 390 int rs600_gart_enable(struct radeon_device *rdev)
 391 {
 392         u32 tmp;
 393         int r, i;
 394
 395         if (rdev->gart.table.vram.robj == NULL) {
 396                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 397                 return -EINVAL;
 398         }
 399         r = radeon_gart_table_vram_pin(rdev);
 400         if (r)
 401                 return r;
 402         radeon_gart_restore(rdev);
 403         /* Enable bus master */
 404         tmp = RREG32(R_00004C_BUS_CNTL) & C_00004C_BUS_MASTER_DIS;
 405         WREG32(R_00004C_BUS_CNTL, tmp);
 406         /* FIXME: setup default page */
 407         WREG32_MC(R_000100_MC_PT0_CNTL,
 408                   (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
 409                    S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
 410
 411         for (i = 0; i < 19; i++) {
 412                 WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
 413                           S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
 414                           S_00016C_SYSTEM_ACCESS_MODE_MASK(
 415                                   V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
 416                           S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
 417                                   V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
 418                           S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
 419                           S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
 420                           S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
 421         }
 422         /* enable first context */
 423         WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
 424                   S_000102_ENABLE_PAGE_TABLE(1) |
 425                   S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
 426
 427         /* disable all other contexts */
 428         for (i = 1; i < 8; i++)
 429                 WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
 430
 431         /* setup the page table */
 432         WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
 433                   rdev->gart.table_addr);
 434         WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
 435         WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
 436         WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
 437
 438         /* System context maps to VRAM space */
 439         WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
 440         WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
 441
 442         /* enable page tables */
 443         tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 444         WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
 445         tmp = RREG32_MC(R_000009_MC_CNTL1);
 446         WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
 447         rs600_gart_tlb_flush(rdev);
 448         rdev->gart.ready = true;
 449         return 0;
 450 }
 451
 452 void rs600_gart_disable(struct radeon_device *rdev)
 453 {
 454         u32 tmp;
 455         int r;
 456
 457         /* FIXME: disable out of gart access */
 458         WREG32_MC(R_000100_MC_PT0_CNTL, 0);
 459         tmp = RREG32_MC(R_000009_MC_CNTL1);
 460         WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
 461         if (rdev->gart.table.vram.robj) {
 462                 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
 463                 if (r == 0) {
 464                         radeon_bo_kunmap(rdev->gart.table.vram.robj);
 465                         radeon_bo_unpin(rdev->gart.table.vram.robj);
 466                         radeon_bo_unreserve(rdev->gart.table.vram.robj);
 467                 }
 468         }
 469 }
 470
 471 void rs600_gart_fini(struct radeon_device *rdev)
 472 {
 473         radeon_gart_fini(rdev);
 474         rs600_gart_disable(rdev);
 475         radeon_gart_table_vram_free(rdev);
 476 }
 477
 478 #define R600_PTE_VALID     (1 << 0)
 479 #define R600_PTE_SYSTEM    (1 << 1)
 480 #define R600_PTE_SNOOPED   (1 << 2)
 481 #define R600_PTE_READABLE  (1 << 5)
 482 #define R600_PTE_WRITEABLE (1 << 6)
 483
 484 int rs600_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr)
 485 {
 486         void __iomem *ptr = (void *)rdev->gart.table.vram.ptr;
 487
 488         if (i < 0 || i > rdev->gart.num_gpu_pages) {
 489                 return -EINVAL;
 490         }
 491         addr = addr & 0xFFFFFFFFFFFFF000ULL;
 492         addr |= R600_PTE_VALID | R600_PTE_SYSTEM | R600_PTE_SNOOPED;
 493         addr |= R600_PTE_READABLE | R600_PTE_WRITEABLE;
 494         writeq(addr, ((void __iomem *)ptr) + (i * 8));
 495         return 0;
 496 }
 497
 498 int rs600_irq_set(struct radeon_device *rdev)
 499 {
 500         uint32_t tmp = 0;
 501         uint32_t mode_int = 0;
 502         u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
 503                 ~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 504         u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
 505                 ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 506
 507         if (!rdev->irq.installed) {
 508                 WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
 509                 WREG32(R_000040_GEN_INT_CNTL, 0);
 510                 return -EINVAL;
 511         }
 512         if (rdev->irq.sw_int) {
 513                 tmp |= S_000040_SW_INT_EN(1);
 514         }
 515         if (rdev->irq.gui_idle) {
 516                 tmp |= S_000040_GUI_IDLE(1);
 517         }
 518         if (rdev->irq.crtc_vblank_int[0]) {
 519                 mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
 520         }
 521         if (rdev->irq.crtc_vblank_int[1]) {
 522                 mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
 523         }
 524         if (rdev->irq.hpd[0]) {
 525                 hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 526         }
 527         if (rdev->irq.hpd[1]) {
 528                 hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 529         }
 530         WREG32(R_000040_GEN_INT_CNTL, tmp);
 531         WREG32(R_006540_DxMODE_INT_MASK, mode_int);
 532         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
 533         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 534         return 0;
 535 }
 536
 537 static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_int)
 538 {
 539         uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
 540         uint32_t irq_mask = S_000044_SW_INT(1);
 541         u32 tmp;
 542
 543         /* the interrupt works, but the status bit is permanently asserted */
 544         if (rdev->irq.gui_idle && radeon_gui_idle(rdev)) {
 545                 if (!rdev->irq.gui_idle_acked)
 546                         irq_mask |= S_000044_GUI_IDLE_STAT(1);
 547         }
 548
 549         if (G_000044_DISPLAY_INT_STAT(irqs)) {
 550                 *r500_disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
 551                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(*r500_disp_int)) {
 552                         WREG32(R_006534_D1MODE_VBLANK_STATUS,
 553                                 S_006534_D1MODE_VBLANK_ACK(1));
 554                 }
 555                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(*r500_disp_int)) {
 556                         WREG32(R_006D34_D2MODE_VBLANK_STATUS,
 557                                 S_006D34_D2MODE_VBLANK_ACK(1));
 558                 }
 559                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(*r500_disp_int)) {
 560                         tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 561                         tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
 562                         WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 563                 }
 564                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(*r500_disp_int)) {
 565                         tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 566                         tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
 567                         WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 568                 }
 569         } else {
 570                 *r500_disp_int = 0;
 571         }
 572
 573         if (irqs) {
 574                 WREG32(R_000044_GEN_INT_STATUS, irqs);
 575         }
 576         return irqs & irq_mask;
 577 }
 578
 579 void rs600_irq_disable(struct radeon_device *rdev)
 580 {
 581         u32 tmp;
 582
 583         WREG32(R_000040_GEN_INT_CNTL, 0);
 584         WREG32(R_006540_DxMODE_INT_MASK, 0);
 585         /* Wait and acknowledge irq */
 586         mdelay(1);
 587         rs600_irq_ack(rdev, &tmp);
 588 }
 589
 590 int rs600_irq_process(struct radeon_device *rdev)
 591 {
 592         uint32_t status, msi_rearm;
 593         uint32_t r500_disp_int;
 594         bool queue_hotplug = false;
 595
 596         /* reset gui idle ack.  the status bit is broken */
 597         rdev->irq.gui_idle_acked = false;
 598
 599         status = rs600_irq_ack(rdev, &r500_disp_int);
 600         if (!status && !r500_disp_int) {
 601                 return IRQ_NONE;
 602         }
 603         while (status || r500_disp_int) {
 604                 /* SW interrupt */
 605                 if (G_000044_SW_INT(status))
 606                         radeon_fence_process(rdev);
 607                 /* GUI idle */
 608                 if (G_000040_GUI_IDLE(status)) {
 609                         rdev->irq.gui_idle_acked = true;
 610                         rdev->pm.gui_idle = true;
 611                         wake_up(&rdev->irq.idle_queue);
 612                 }
 613                 /* Vertical blank interrupts */
 614                 if (G_007EDC_LB_D1_VBLANK_INTERRUPT(r500_disp_int)) {
 615                         drm_handle_vblank(rdev->ddev, 0);
 616                         rdev->pm.vblank_sync = true;
 617                         wake_up(&rdev->irq.vblank_queue);
 618                 }
 619                 if (G_007EDC_LB_D2_VBLANK_INTERRUPT(r500_disp_int)) {
 620                         drm_handle_vblank(rdev->ddev, 1);
 621                         rdev->pm.vblank_sync = true;
 622                         wake_up(&rdev->irq.vblank_queue);
 623                 }
 624                 if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(r500_disp_int)) {
 625                         queue_hotplug = true;
 626                         DRM_DEBUG("HPD1\n");
 627                 }
 628                 if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(r500_disp_int)) {
 629                         queue_hotplug = true;
 630                         DRM_DEBUG("HPD2\n");
 631                 }
 632                 status = rs600_irq_ack(rdev, &r500_disp_int);
 633         }
 634         /* reset gui idle ack.  the status bit is broken */
 635         rdev->irq.gui_idle_acked = false;
 636         if (queue_hotplug)
 637                 queue_work(rdev->wq, &rdev->hotplug_work);
 638         if (rdev->msi_enabled) {
 639                 switch (rdev->family) {
 640                 case CHIP_RS600:
 641                 case CHIP_RS690:
 642                 case CHIP_RS740:
 643                         msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
 644                         WREG32(RADEON_BUS_CNTL, msi_rearm);
 645                         WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
 646                         break;
 647                 default:
 648                         msi_rearm = RREG32(RADEON_MSI_REARM_EN) & ~RV370_MSI_REARM_EN;
 649                         WREG32(RADEON_MSI_REARM_EN, msi_rearm);
 650                         WREG32(RADEON_MSI_REARM_EN, msi_rearm | RV370_MSI_REARM_EN);
 651                         break;
 652                 }
 653         }
 654         return IRQ_HANDLED;
 655 }
 656
 657 u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
 658 {
 659         if (crtc == 0)
 660                 return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
 661         else
 662                 return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
 663 }
 664
 665 int rs600_mc_wait_for_idle(struct radeon_device *rdev)
 666 {
 667         unsigned i;
 668
 669         for (i = 0; i < rdev->usec_timeout; i++) {
 670                 if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
 671                         return 0;
 672                 udelay(1);
 673         }
 674         return -1;
 675 }
 676
 677 void rs600_gpu_init(struct radeon_device *rdev)
 678 {
 679         r420_pipes_init(rdev);
 680         /* Wait for mc idle */
 681         if (rs600_mc_wait_for_idle(rdev))
 682                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 683 }
 684
 685 void rs600_mc_init(struct radeon_device *rdev)
 686 {
 687         u64 base;
 688
 689         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
 690         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
 691         rdev->mc.vram_is_ddr = true;
 692         rdev->mc.vram_width = 128;
 693         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 694         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 695         rdev->mc.visible_vram_size = rdev->mc.aper_size;
 696         rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
 697         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
 698         base = RREG32_MC(R_000004_MC_FB_LOCATION);
 699         base = G_000004_MC_FB_START(base) << 16;
 700         radeon_vram_location(rdev, &rdev->mc, base);
 701         rdev->mc.gtt_base_align = 0;
 702         radeon_gtt_location(rdev, &rdev->mc);
 703         radeon_update_bandwidth_info(rdev);
 704 }
 705
 706 void rs600_bandwidth_update(struct radeon_device *rdev)
 707 {
 708         struct drm_display_mode *mode0 = NULL;
 709         struct drm_display_mode *mode1 = NULL;
 710         u32 d1mode_priority_a_cnt, d2mode_priority_a_cnt;
 711         /* FIXME: implement full support */
 712
 713         radeon_update_display_priority(rdev);
 714
 715         if (rdev->mode_info.crtcs[0]->base.enabled)
 716                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
 717         if (rdev->mode_info.crtcs[1]->base.enabled)
 718                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
 719
 720         rs690_line_buffer_adjust(rdev, mode0, mode1);
 721
 722         if (rdev->disp_priority == 2) {
 723                 d1mode_priority_a_cnt = RREG32(R_006548_D1MODE_PRIORITY_A_CNT);
 724                 d2mode_priority_a_cnt = RREG32(R_006D48_D2MODE_PRIORITY_A_CNT);
 725                 d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
 726                 d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
 727                 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
 728                 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
 729                 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
 730                 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
 731         }
 732 }
 733
 734 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 735 {
 736         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 737                 S_000070_MC_IND_CITF_ARB0(1));
 738         return RREG32(R_000074_MC_IND_DATA);
 739 }
 740
 741 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 742 {
 743         WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 744                 S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
 745         WREG32(R_000074_MC_IND_DATA, v);
 746 }
 747
 748 void rs600_debugfs(struct radeon_device *rdev)
 749 {
 750         if (r100_debugfs_rbbm_init(rdev))
 751                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 752 }
 753
 754 void rs600_set_safe_registers(struct radeon_device *rdev)
 755 {
 756         rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
 757         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
 758 }
 759
 760 static void rs600_mc_program(struct radeon_device *rdev)
 761 {
 762         struct rv515_mc_save save;
 763
 764         /* Stops all mc clients */
 765         rv515_mc_stop(rdev, &save);
 766
 767         /* Wait for mc idle */
 768         if (rs600_mc_wait_for_idle(rdev))
 769                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 770
 771         /* FIXME: What does AGP means for such chipset ? */
 772         WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
 773         WREG32_MC(R_000006_AGP_BASE, 0);
 774         WREG32_MC(R_000007_AGP_BASE_2, 0);
 775         /* Program MC */
 776         WREG32_MC(R_000004_MC_FB_LOCATION,
 777                         S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
 778                         S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
 779         WREG32(R_000134_HDP_FB_LOCATION,
 780                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 781
 782         rv515_mc_resume(rdev, &save);
 783 }
 784
 785 static int rs600_startup(struct radeon_device *rdev)
 786 {
 787         int r;
 788
 789         rs600_mc_program(rdev);
 790         /* Resume clock */
 791         rv515_clock_startup(rdev);
 792         /* Initialize GPU configuration (# pipes, ...) */
 793         rs600_gpu_init(rdev);
 794         /* Initialize GART (initialize after TTM so we can allocate
 795          * memory through TTM but finalize after TTM) */
 796         r = rs600_gart_enable(rdev);
 797         if (r)
 798                 return r;
 799
 800         /* allocate wb buffer */
 801         r = radeon_wb_init(rdev);
 802         if (r)
 803                 return r;
 804
 805         /* Enable IRQ */
 806         rs600_irq_set(rdev);
 807         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 808         /* 1M ring buffer */
 809         r = r100_cp_init(rdev, 1024 * 1024);
 810         if (r) {
 811                 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
 812                 return r;
 813         }
 814         r = r100_ib_init(rdev);
 815         if (r) {
 816                 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
 817                 return r;
 818         }
 819
 820         r = r600_audio_init(rdev);
 821         if (r) {
 822                 dev_err(rdev->dev, "failed initializing audio\n");
 823                 return r;
 824         }
 825
 826         return 0;
 827 }
 828
 829 int rs600_resume(struct radeon_device *rdev)
 830 {
 831         /* Make sur GART are not working */
 832         rs600_gart_disable(rdev);
 833         /* Resume clock before doing reset */
 834         rv515_clock_startup(rdev);
 835         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 836         if (radeon_asic_reset(rdev)) {
 837                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 838                         RREG32(R_000E40_RBBM_STATUS),
 839                         RREG32(R_0007C0_CP_STAT));
 840         }
 841         /* post */
 842         atom_asic_init(rdev->mode_info.atom_context);
 843         /* Resume clock after posting */
 844         rv515_clock_startup(rdev);
 845         /* Initialize surface registers */
 846         radeon_surface_init(rdev);
 847         return rs600_startup(rdev);
 848 }
 849
 850 int rs600_suspend(struct radeon_device *rdev)
 851 {
 852         r600_audio_fini(rdev);
 853         r100_cp_disable(rdev);
 854         radeon_wb_disable(rdev);
 855         rs600_irq_disable(rdev);
 856         rs600_gart_disable(rdev);
 857         return 0;
 858 }
 859
 860 void rs600_fini(struct radeon_device *rdev)
 861 {
 862         r600_audio_fini(rdev);
 863         r100_cp_fini(rdev);
 864         radeon_wb_fini(rdev);
 865         r100_ib_fini(rdev);
 866         radeon_gem_fini(rdev);
 867         rs600_gart_fini(rdev);
 868         radeon_irq_kms_fini(rdev);
 869         radeon_fence_driver_fini(rdev);
 870         radeon_bo_fini(rdev);
 871         radeon_atombios_fini(rdev);
 872         kfree(rdev->bios);
 873         rdev->bios = NULL;
 874 }
 875
 876 int rs600_init(struct radeon_device *rdev)
 877 {
 878         int r;
 879
 880         /* Disable VGA */
 881         rv515_vga_render_disable(rdev);
 882         /* Initialize scratch registers */
 883         radeon_scratch_init(rdev);
 884         /* Initialize surface registers */
 885         radeon_surface_init(rdev);
 886         /* restore some register to sane defaults */
 887         r100_restore_sanity(rdev);
 888         /* BIOS */
 889         if (!radeon_get_bios(rdev)) {
 890                 if (ASIC_IS_AVIVO(rdev))
 891                         return -EINVAL;
 892         }
 893         if (rdev->is_atom_bios) {
 894                 r = radeon_atombios_init(rdev);
 895                 if (r)
 896                         return r;
 897         } else {
 898                 dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
 899                 return -EINVAL;
 900         }
 901         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 902         if (radeon_asic_reset(rdev)) {
 903                 dev_warn(rdev->dev,
 904                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 905                         RREG32(R_000E40_RBBM_STATUS),
 906                         RREG32(R_0007C0_CP_STAT));
 907         }
 908         /* check if cards are posted or not */
 909         if (radeon_boot_test_post_card(rdev) == false)
 910                 return -EINVAL;
 911
 912         /* Initialize clocks */
 913         radeon_get_clock_info(rdev->ddev);
 914         /* initialize memory controller */
 915         rs600_mc_init(rdev);
 916         rs600_debugfs(rdev);
 917         /* Fence driver */
 918         r = radeon_fence_driver_init(rdev);
 919         if (r)
 920                 return r;
 921         r = radeon_irq_kms_init(rdev);
 922         if (r)
 923                 return r;
 924         /* Memory manager */
 925         r = radeon_bo_init(rdev);
 926         if (r)
 927                 return r;
 928         r = rs600_gart_init(rdev);
 929         if (r)
 930                 return r;
 931         rs600_set_safe_registers(rdev);
 932         rdev->accel_working = true;
 933         r = rs600_startup(rdev);
 934         if (r) {
 935                 /* Somethings want wront with the accel init stop accel */
 936                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 937                 r100_cp_fini(rdev);
 938                 radeon_wb_fini(rdev);
 939                 r100_ib_fini(rdev);
 940                 rs600_gart_fini(rdev);
 941                 radeon_irq_kms_fini(rdev);
 942                 rdev->accel_working = false;
 943         }
 944         return 0;
 945 }