linux/drivers/gpu/drm/radeon/rs600.c
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   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
  39#include <linux/io-64-nonatomic-lo-hi.h>
  40#include <linux/pci.h>
  41
  42#include <drm/drm_device.h>
  43#include <drm/drm_vblank.h>
  44
  45#include "atom.h"
  46#include "radeon.h"
  47#include "radeon_asic.h"
  48#include "radeon_audio.h"
  49#include "rs600_reg_safe.h"
  50#include "rs600d.h"
  51
  52static void rs600_gpu_init(struct radeon_device *rdev);
  53int rs600_mc_wait_for_idle(struct radeon_device *rdev);
  54
  55static const u32 crtc_offsets[2] =
  56{
  57        0,
  58        AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
  59};
  60
  61static bool avivo_is_in_vblank(struct radeon_device *rdev, int crtc)
  62{
  63        if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
  64                return true;
  65        else
  66                return false;
  67}
  68
  69static bool avivo_is_counter_moving(struct radeon_device *rdev, int crtc)
  70{
  71        u32 pos1, pos2;
  72
  73        pos1 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
  74        pos2 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
  75
  76        if (pos1 != pos2)
  77                return true;
  78        else
  79                return false;
  80}
  81
  82/**
  83 * avivo_wait_for_vblank - vblank wait asic callback.
  84 *
  85 * @rdev: radeon_device pointer
  86 * @crtc: crtc to wait for vblank on
  87 *
  88 * Wait for vblank on the requested crtc (r5xx-r7xx).
  89 */
  90void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
  91{
  92        unsigned i = 0;
  93
  94        if (crtc >= rdev->num_crtc)
  95                return;
  96
  97        if (!(RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN))
  98                return;
  99
 100        /* depending on when we hit vblank, we may be close to active; if so,
 101         * wait for another frame.
 102         */
 103        while (avivo_is_in_vblank(rdev, crtc)) {
 104                if (i++ % 100 == 0) {
 105                        if (!avivo_is_counter_moving(rdev, crtc))
 106                                break;
 107                }
 108        }
 109
 110        while (!avivo_is_in_vblank(rdev, crtc)) {
 111                if (i++ % 100 == 0) {
 112                        if (!avivo_is_counter_moving(rdev, crtc))
 113                                break;
 114                }
 115        }
 116}
 117
 118void rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool async)
 119{
 120        struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
 121        u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
 122        int i;
 123
 124        /* Lock the graphics update lock */
 125        tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
 126        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
 127
 128        /* update the scanout addresses */
 129        WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset,
 130               async ? AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0);
 131        WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
 132               (u32)crtc_base);
 133        WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
 134               (u32)crtc_base);
 135
 136        /* Wait for update_pending to go high. */
 137        for (i = 0; i < rdev->usec_timeout; i++) {
 138                if (RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING)
 139                        break;
 140                udelay(1);
 141        }
 142        DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
 143
 144        /* Unlock the lock, so double-buffering can take place inside vblank */
 145        tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
 146        WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
 147}
 148
 149bool rs600_page_flip_pending(struct radeon_device *rdev, int crtc_id)
 150{
 151        struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
 152
 153        /* Return current update_pending status: */
 154        return !!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) &
 155                AVIVO_D1GRPH_SURFACE_UPDATE_PENDING);
 156}
 157
 158void avivo_program_fmt(struct drm_encoder *encoder)
 159{
 160        struct drm_device *dev = encoder->dev;
 161        struct radeon_device *rdev = dev->dev_private;
 162        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 163        struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 164        int bpc = 0;
 165        u32 tmp = 0;
 166        enum radeon_connector_dither dither = RADEON_FMT_DITHER_DISABLE;
 167
 168        if (connector) {
 169                struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 170                bpc = radeon_get_monitor_bpc(connector);
 171                dither = radeon_connector->dither;
 172        }
 173
 174        /* LVDS FMT is set up by atom */
 175        if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
 176                return;
 177
 178        if (bpc == 0)
 179                return;
 180
 181        switch (bpc) {
 182        case 6:
 183                if (dither == RADEON_FMT_DITHER_ENABLE)
 184                        /* XXX sort out optimal dither settings */
 185                        tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN;
 186                else
 187                        tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN;
 188                break;
 189        case 8:
 190                if (dither == RADEON_FMT_DITHER_ENABLE)
 191                        /* XXX sort out optimal dither settings */
 192                        tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN |
 193                                AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_DEPTH);
 194                else
 195                        tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN |
 196                                AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_DEPTH);
 197                break;
 198        case 10:
 199        default:
 200                /* not needed */
 201                break;
 202        }
 203
 204        switch (radeon_encoder->encoder_id) {
 205        case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
 206                WREG32(AVIVO_TMDSA_BIT_DEPTH_CONTROL, tmp);
 207                break;
 208        case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
 209                WREG32(AVIVO_LVTMA_BIT_DEPTH_CONTROL, tmp);
 210                break;
 211        case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
 212                WREG32(AVIVO_DVOA_BIT_DEPTH_CONTROL, tmp);
 213                break;
 214        case ENCODER_OBJECT_ID_INTERNAL_DDI:
 215                WREG32(AVIVO_DDIA_BIT_DEPTH_CONTROL, tmp);
 216                break;
 217        default:
 218                break;
 219        }
 220}
 221
 222void rs600_pm_misc(struct radeon_device *rdev)
 223{
 224        int requested_index = rdev->pm.requested_power_state_index;
 225        struct radeon_power_state *ps = &rdev->pm.power_state[requested_index];
 226        struct radeon_voltage *voltage = &ps->clock_info[0].voltage;
 227        u32 tmp, dyn_pwrmgt_sclk_length, dyn_sclk_vol_cntl;
 228        u32 hdp_dyn_cntl, /*mc_host_dyn_cntl,*/ dyn_backbias_cntl;
 229
 230        if ((voltage->type == VOLTAGE_GPIO) && (voltage->gpio.valid)) {
 231                if (ps->misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) {
 232                        tmp = RREG32(voltage->gpio.reg);
 233                        if (voltage->active_high)
 234                                tmp |= voltage->gpio.mask;
 235                        else
 236                                tmp &= ~(voltage->gpio.mask);
 237                        WREG32(voltage->gpio.reg, tmp);
 238                        if (voltage->delay)
 239                                udelay(voltage->delay);
 240                } else {
 241                        tmp = RREG32(voltage->gpio.reg);
 242                        if (voltage->active_high)
 243                                tmp &= ~voltage->gpio.mask;
 244                        else
 245                                tmp |= voltage->gpio.mask;
 246                        WREG32(voltage->gpio.reg, tmp);
 247                        if (voltage->delay)
 248                                udelay(voltage->delay);
 249                }
 250        } else if (voltage->type == VOLTAGE_VDDC)
 251                radeon_atom_set_voltage(rdev, voltage->vddc_id, SET_VOLTAGE_TYPE_ASIC_VDDC);
 252
 253        dyn_pwrmgt_sclk_length = RREG32_PLL(DYN_PWRMGT_SCLK_LENGTH);
 254        dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_HILEN(0xf);
 255        dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_LOLEN(0xf);
 256        if (ps->misc & ATOM_PM_MISCINFO_ASIC_REDUCED_SPEED_SCLK_EN) {
 257                if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_2) {
 258                        dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(2);
 259                        dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(2);
 260                } else if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_4) {
 261                        dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(4);
 262                        dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(4);
 263                }
 264        } else {
 265                dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(1);
 266                dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(1);
 267        }
 268        WREG32_PLL(DYN_PWRMGT_SCLK_LENGTH, dyn_pwrmgt_sclk_length);
 269
 270        dyn_sclk_vol_cntl = RREG32_PLL(DYN_SCLK_VOL_CNTL);
 271        if (ps->misc & ATOM_PM_MISCINFO_ASIC_DYNAMIC_VOLTAGE_EN) {
 272                dyn_sclk_vol_cntl |= IO_CG_VOLTAGE_DROP;
 273                if (voltage->delay) {
 274                        dyn_sclk_vol_cntl |= VOLTAGE_DROP_SYNC;
 275                        dyn_sclk_vol_cntl |= VOLTAGE_DELAY_SEL(voltage->delay);
 276                } else
 277                        dyn_sclk_vol_cntl &= ~VOLTAGE_DROP_SYNC;
 278        } else
 279                dyn_sclk_vol_cntl &= ~IO_CG_VOLTAGE_DROP;
 280        WREG32_PLL(DYN_SCLK_VOL_CNTL, dyn_sclk_vol_cntl);
 281
 282        hdp_dyn_cntl = RREG32_PLL(HDP_DYN_CNTL);
 283        if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_HDP_BLOCK_EN)
 284                hdp_dyn_cntl &= ~HDP_FORCEON;
 285        else
 286                hdp_dyn_cntl |= HDP_FORCEON;
 287        WREG32_PLL(HDP_DYN_CNTL, hdp_dyn_cntl);
 288#if 0
 289        /* mc_host_dyn seems to cause hangs from time to time */
 290        mc_host_dyn_cntl = RREG32_PLL(MC_HOST_DYN_CNTL);
 291        if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_MC_HOST_BLOCK_EN)
 292                mc_host_dyn_cntl &= ~MC_HOST_FORCEON;
 293        else
 294                mc_host_dyn_cntl |= MC_HOST_FORCEON;
 295        WREG32_PLL(MC_HOST_DYN_CNTL, mc_host_dyn_cntl);
 296#endif
 297        dyn_backbias_cntl = RREG32_PLL(DYN_BACKBIAS_CNTL);
 298        if (ps->misc & ATOM_PM_MISCINFO2_DYNAMIC_BACK_BIAS_EN)
 299                dyn_backbias_cntl |= IO_CG_BACKBIAS_EN;
 300        else
 301                dyn_backbias_cntl &= ~IO_CG_BACKBIAS_EN;
 302        WREG32_PLL(DYN_BACKBIAS_CNTL, dyn_backbias_cntl);
 303
 304        /* set pcie lanes */
 305        if ((rdev->flags & RADEON_IS_PCIE) &&
 306            !(rdev->flags & RADEON_IS_IGP) &&
 307            rdev->asic->pm.set_pcie_lanes &&
 308            (ps->pcie_lanes !=
 309             rdev->pm.power_state[rdev->pm.current_power_state_index].pcie_lanes)) {
 310                radeon_set_pcie_lanes(rdev,
 311                                      ps->pcie_lanes);
 312                DRM_DEBUG("Setting: p: %d\n", ps->pcie_lanes);
 313        }
 314}
 315
 316void rs600_pm_prepare(struct radeon_device *rdev)
 317{
 318        struct drm_device *ddev = rdev->ddev;
 319        struct drm_crtc *crtc;
 320        struct radeon_crtc *radeon_crtc;
 321        u32 tmp;
 322
 323        /* disable any active CRTCs */
 324        list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 325                radeon_crtc = to_radeon_crtc(crtc);
 326                if (radeon_crtc->enabled) {
 327                        tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 328                        tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 329                        WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 330                }
 331        }
 332}
 333
 334void rs600_pm_finish(struct radeon_device *rdev)
 335{
 336        struct drm_device *ddev = rdev->ddev;
 337        struct drm_crtc *crtc;
 338        struct radeon_crtc *radeon_crtc;
 339        u32 tmp;
 340
 341        /* enable any active CRTCs */
 342        list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
 343                radeon_crtc = to_radeon_crtc(crtc);
 344                if (radeon_crtc->enabled) {
 345                        tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
 346                        tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 347                        WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
 348                }
 349        }
 350}
 351
 352/* hpd for digital panel detect/disconnect */
 353bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
 354{
 355        u32 tmp;
 356        bool connected = false;
 357
 358        switch (hpd) {
 359        case RADEON_HPD_1:
 360                tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
 361                if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
 362                        connected = true;
 363                break;
 364        case RADEON_HPD_2:
 365                tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
 366                if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
 367                        connected = true;
 368                break;
 369        default:
 370                break;
 371        }
 372        return connected;
 373}
 374
 375void rs600_hpd_set_polarity(struct radeon_device *rdev,
 376                            enum radeon_hpd_id hpd)
 377{
 378        u32 tmp;
 379        bool connected = rs600_hpd_sense(rdev, hpd);
 380
 381        switch (hpd) {
 382        case RADEON_HPD_1:
 383                tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 384                if (connected)
 385                        tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 386                else
 387                        tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
 388                WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 389                break;
 390        case RADEON_HPD_2:
 391                tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 392                if (connected)
 393                        tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 394                else
 395                        tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
 396                WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 397                break;
 398        default:
 399                break;
 400        }
 401}
 402
 403void rs600_hpd_init(struct radeon_device *rdev)
 404{
 405        struct drm_device *dev = rdev->ddev;
 406        struct drm_connector *connector;
 407        unsigned enable = 0;
 408
 409        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 410                struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 411                switch (radeon_connector->hpd.hpd) {
 412                case RADEON_HPD_1:
 413                        WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 414                               S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
 415                        break;
 416                case RADEON_HPD_2:
 417                        WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 418                               S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
 419                        break;
 420                default:
 421                        break;
 422                }
 423                if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
 424                        enable |= 1 << radeon_connector->hpd.hpd;
 425                radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
 426        }
 427        radeon_irq_kms_enable_hpd(rdev, enable);
 428}
 429
 430void rs600_hpd_fini(struct radeon_device *rdev)
 431{
 432        struct drm_device *dev = rdev->ddev;
 433        struct drm_connector *connector;
 434        unsigned disable = 0;
 435
 436        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 437                struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 438                switch (radeon_connector->hpd.hpd) {
 439                case RADEON_HPD_1:
 440                        WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
 441                               S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
 442                        break;
 443                case RADEON_HPD_2:
 444                        WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
 445                               S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
 446                        break;
 447                default:
 448                        break;
 449                }
 450                if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
 451                        disable |= 1 << radeon_connector->hpd.hpd;
 452        }
 453        radeon_irq_kms_disable_hpd(rdev, disable);
 454}
 455
 456int rs600_asic_reset(struct radeon_device *rdev, bool hard)
 457{
 458        struct rv515_mc_save save;
 459        u32 status, tmp;
 460        int ret = 0;
 461
 462        status = RREG32(R_000E40_RBBM_STATUS);
 463        if (!G_000E40_GUI_ACTIVE(status)) {
 464                return 0;
 465        }
 466        /* Stops all mc clients */
 467        rv515_mc_stop(rdev, &save);
 468        status = RREG32(R_000E40_RBBM_STATUS);
 469        dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 470        /* stop CP */
 471        WREG32(RADEON_CP_CSQ_CNTL, 0);
 472        tmp = RREG32(RADEON_CP_RB_CNTL);
 473        WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
 474        WREG32(RADEON_CP_RB_RPTR_WR, 0);
 475        WREG32(RADEON_CP_RB_WPTR, 0);
 476        WREG32(RADEON_CP_RB_CNTL, tmp);
 477        pci_save_state(rdev->pdev);
 478        /* disable bus mastering */
 479        pci_clear_master(rdev->pdev);
 480        mdelay(1);
 481        /* reset GA+VAP */
 482        WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
 483                                        S_0000F0_SOFT_RESET_GA(1));
 484        RREG32(R_0000F0_RBBM_SOFT_RESET);
 485        mdelay(500);
 486        WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 487        mdelay(1);
 488        status = RREG32(R_000E40_RBBM_STATUS);
 489        dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 490        /* reset CP */
 491        WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
 492        RREG32(R_0000F0_RBBM_SOFT_RESET);
 493        mdelay(500);
 494        WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 495        mdelay(1);
 496        status = RREG32(R_000E40_RBBM_STATUS);
 497        dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 498        /* reset MC */
 499        WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
 500        RREG32(R_0000F0_RBBM_SOFT_RESET);
 501        mdelay(500);
 502        WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
 503        mdelay(1);
 504        status = RREG32(R_000E40_RBBM_STATUS);
 505        dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
 506        /* restore PCI & busmastering */
 507        pci_restore_state(rdev->pdev);
 508        /* Check if GPU is idle */
 509        if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
 510                dev_err(rdev->dev, "failed to reset GPU\n");
 511                ret = -1;
 512        } else
 513                dev_info(rdev->dev, "GPU reset succeed\n");
 514        rv515_mc_resume(rdev, &save);
 515        return ret;
 516}
 517
 518/*
 519 * GART.
 520 */
 521void rs600_gart_tlb_flush(struct radeon_device *rdev)
 522{
 523        uint32_t tmp;
 524
 525        tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 526        tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 527        WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 528
 529        tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 530        tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
 531        WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 532
 533        tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 534        tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
 535        WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
 536        tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 537}
 538
 539static int rs600_gart_init(struct radeon_device *rdev)
 540{
 541        int r;
 542
 543        if (rdev->gart.robj) {
 544                WARN(1, "RS600 GART already initialized\n");
 545                return 0;
 546        }
 547        /* Initialize common gart structure */
 548        r = radeon_gart_init(rdev);
 549        if (r) {
 550                return r;
 551        }
 552        rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
 553        return radeon_gart_table_vram_alloc(rdev);
 554}
 555
 556static int rs600_gart_enable(struct radeon_device *rdev)
 557{
 558        u32 tmp;
 559        int r, i;
 560
 561        if (rdev->gart.robj == NULL) {
 562                dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 563                return -EINVAL;
 564        }
 565        r = radeon_gart_table_vram_pin(rdev);
 566        if (r)
 567                return r;
 568        /* Enable bus master */
 569        tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
 570        WREG32(RADEON_BUS_CNTL, tmp);
 571        /* FIXME: setup default page */
 572        WREG32_MC(R_000100_MC_PT0_CNTL,
 573                  (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
 574                   S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
 575
 576        for (i = 0; i < 19; i++) {
 577                WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
 578                          S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
 579                          S_00016C_SYSTEM_ACCESS_MODE_MASK(
 580                                  V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
 581                          S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
 582                                  V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
 583                          S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
 584                          S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
 585                          S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
 586        }
 587        /* enable first context */
 588        WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
 589                  S_000102_ENABLE_PAGE_TABLE(1) |
 590                  S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
 591
 592        /* disable all other contexts */
 593        for (i = 1; i < 8; i++)
 594                WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
 595
 596        /* setup the page table */
 597        WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
 598                  rdev->gart.table_addr);
 599        WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
 600        WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
 601        WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
 602
 603        /* System context maps to VRAM space */
 604        WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
 605        WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
 606
 607        /* enable page tables */
 608        tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
 609        WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
 610        tmp = RREG32_MC(R_000009_MC_CNTL1);
 611        WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
 612        rs600_gart_tlb_flush(rdev);
 613        DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 614                 (unsigned)(rdev->mc.gtt_size >> 20),
 615                 (unsigned long long)rdev->gart.table_addr);
 616        rdev->gart.ready = true;
 617        return 0;
 618}
 619
 620static void rs600_gart_disable(struct radeon_device *rdev)
 621{
 622        u32 tmp;
 623
 624        /* FIXME: disable out of gart access */
 625        WREG32_MC(R_000100_MC_PT0_CNTL, 0);
 626        tmp = RREG32_MC(R_000009_MC_CNTL1);
 627        WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
 628        radeon_gart_table_vram_unpin(rdev);
 629}
 630
 631static void rs600_gart_fini(struct radeon_device *rdev)
 632{
 633        radeon_gart_fini(rdev);
 634        rs600_gart_disable(rdev);
 635        radeon_gart_table_vram_free(rdev);
 636}
 637
 638uint64_t rs600_gart_get_page_entry(uint64_t addr, uint32_t flags)
 639{
 640        addr = addr & 0xFFFFFFFFFFFFF000ULL;
 641        addr |= R600_PTE_SYSTEM;
 642        if (flags & RADEON_GART_PAGE_VALID)
 643                addr |= R600_PTE_VALID;
 644        if (flags & RADEON_GART_PAGE_READ)
 645                addr |= R600_PTE_READABLE;
 646        if (flags & RADEON_GART_PAGE_WRITE)
 647                addr |= R600_PTE_WRITEABLE;
 648        if (flags & RADEON_GART_PAGE_SNOOP)
 649                addr |= R600_PTE_SNOOPED;
 650        return addr;
 651}
 652
 653void rs600_gart_set_page(struct radeon_device *rdev, unsigned i,
 654                         uint64_t entry)
 655{
 656        void __iomem *ptr = (void *)rdev->gart.ptr;
 657        writeq(entry, ptr + (i * 8));
 658}
 659
 660int rs600_irq_set(struct radeon_device *rdev)
 661{
 662        uint32_t tmp = 0;
 663        uint32_t mode_int = 0;
 664        u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
 665                ~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 666        u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
 667                ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 668        u32 hdmi0;
 669        if (ASIC_IS_DCE2(rdev))
 670                hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
 671                        ~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 672        else
 673                hdmi0 = 0;
 674
 675        if (!rdev->irq.installed) {
 676                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
 677                WREG32(R_000040_GEN_INT_CNTL, 0);
 678                return -EINVAL;
 679        }
 680        if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
 681                tmp |= S_000040_SW_INT_EN(1);
 682        }
 683        if (rdev->irq.crtc_vblank_int[0] ||
 684            atomic_read(&rdev->irq.pflip[0])) {
 685                mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
 686        }
 687        if (rdev->irq.crtc_vblank_int[1] ||
 688            atomic_read(&rdev->irq.pflip[1])) {
 689                mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
 690        }
 691        if (rdev->irq.hpd[0]) {
 692                hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
 693        }
 694        if (rdev->irq.hpd[1]) {
 695                hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
 696        }
 697        if (rdev->irq.afmt[0]) {
 698                hdmi0 |= S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 699        }
 700        WREG32(R_000040_GEN_INT_CNTL, tmp);
 701        WREG32(R_006540_DxMODE_INT_MASK, mode_int);
 702        WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
 703        WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
 704        if (ASIC_IS_DCE2(rdev))
 705                WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
 706
 707        /* posting read */
 708        RREG32(R_000040_GEN_INT_CNTL);
 709
 710        return 0;
 711}
 712
 713static inline u32 rs600_irq_ack(struct radeon_device *rdev)
 714{
 715        uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
 716        uint32_t irq_mask = S_000044_SW_INT(1);
 717        u32 tmp;
 718
 719        if (G_000044_DISPLAY_INT_STAT(irqs)) {
 720                rdev->irq.stat_regs.r500.disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
 721                if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 722                        WREG32(R_006534_D1MODE_VBLANK_STATUS,
 723                                S_006534_D1MODE_VBLANK_ACK(1));
 724                }
 725                if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 726                        WREG32(R_006D34_D2MODE_VBLANK_STATUS,
 727                                S_006D34_D2MODE_VBLANK_ACK(1));
 728                }
 729                if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 730                        tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
 731                        tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
 732                        WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
 733                }
 734                if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 735                        tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
 736                        tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
 737                        WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
 738                }
 739        } else {
 740                rdev->irq.stat_regs.r500.disp_int = 0;
 741        }
 742
 743        if (ASIC_IS_DCE2(rdev)) {
 744                rdev->irq.stat_regs.r500.hdmi0_status = RREG32(R_007404_HDMI0_STATUS) &
 745                        S_007404_HDMI0_AZ_FORMAT_WTRIG(1);
 746                if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
 747                        tmp = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL);
 748                        tmp |= S_007408_HDMI0_AZ_FORMAT_WTRIG_ACK(1);
 749                        WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, tmp);
 750                }
 751        } else
 752                rdev->irq.stat_regs.r500.hdmi0_status = 0;
 753
 754        if (irqs) {
 755                WREG32(R_000044_GEN_INT_STATUS, irqs);
 756        }
 757        return irqs & irq_mask;
 758}
 759
 760void rs600_irq_disable(struct radeon_device *rdev)
 761{
 762        u32 hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
 763                ~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
 764        WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
 765        WREG32(R_000040_GEN_INT_CNTL, 0);
 766        WREG32(R_006540_DxMODE_INT_MASK, 0);
 767        /* Wait and acknowledge irq */
 768        mdelay(1);
 769        rs600_irq_ack(rdev);
 770}
 771
 772int rs600_irq_process(struct radeon_device *rdev)
 773{
 774        u32 status, msi_rearm;
 775        bool queue_hotplug = false;
 776        bool queue_hdmi = false;
 777
 778        status = rs600_irq_ack(rdev);
 779        if (!status &&
 780            !rdev->irq.stat_regs.r500.disp_int &&
 781            !rdev->irq.stat_regs.r500.hdmi0_status) {
 782                return IRQ_NONE;
 783        }
 784        while (status ||
 785               rdev->irq.stat_regs.r500.disp_int ||
 786               rdev->irq.stat_regs.r500.hdmi0_status) {
 787                /* SW interrupt */
 788                if (G_000044_SW_INT(status)) {
 789                        radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 790                }
 791                /* Vertical blank interrupts */
 792                if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 793                        if (rdev->irq.crtc_vblank_int[0]) {
 794                                drm_handle_vblank(rdev->ddev, 0);
 795                                rdev->pm.vblank_sync = true;
 796                                wake_up(&rdev->irq.vblank_queue);
 797                        }
 798                        if (atomic_read(&rdev->irq.pflip[0]))
 799                                radeon_crtc_handle_vblank(rdev, 0);
 800                }
 801                if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 802                        if (rdev->irq.crtc_vblank_int[1]) {
 803                                drm_handle_vblank(rdev->ddev, 1);
 804                                rdev->pm.vblank_sync = true;
 805                                wake_up(&rdev->irq.vblank_queue);
 806                        }
 807                        if (atomic_read(&rdev->irq.pflip[1]))
 808                                radeon_crtc_handle_vblank(rdev, 1);
 809                }
 810                if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 811                        queue_hotplug = true;
 812                        DRM_DEBUG("HPD1\n");
 813                }
 814                if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
 815                        queue_hotplug = true;
 816                        DRM_DEBUG("HPD2\n");
 817                }
 818                if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
 819                        queue_hdmi = true;
 820                        DRM_DEBUG("HDMI0\n");
 821                }
 822                status = rs600_irq_ack(rdev);
 823        }
 824        if (queue_hotplug)
 825                schedule_delayed_work(&rdev->hotplug_work, 0);
 826        if (queue_hdmi)
 827                schedule_work(&rdev->audio_work);
 828        if (rdev->msi_enabled) {
 829                switch (rdev->family) {
 830                case CHIP_RS600:
 831                case CHIP_RS690:
 832                case CHIP_RS740:
 833                        msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
 834                        WREG32(RADEON_BUS_CNTL, msi_rearm);
 835                        WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
 836                        break;
 837                default:
 838                        WREG32(RADEON_MSI_REARM_EN, RV370_MSI_REARM_EN);
 839                        break;
 840                }
 841        }
 842        return IRQ_HANDLED;
 843}
 844
 845u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
 846{
 847        if (crtc == 0)
 848                return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
 849        else
 850                return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
 851}
 852
 853int rs600_mc_wait_for_idle(struct radeon_device *rdev)
 854{
 855        unsigned i;
 856
 857        for (i = 0; i < rdev->usec_timeout; i++) {
 858                if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
 859                        return 0;
 860                udelay(1);
 861        }
 862        return -1;
 863}
 864
 865static void rs600_gpu_init(struct radeon_device *rdev)
 866{
 867        r420_pipes_init(rdev);
 868        /* Wait for mc idle */
 869        if (rs600_mc_wait_for_idle(rdev))
 870                dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 871}
 872
 873static void rs600_mc_init(struct radeon_device *rdev)
 874{
 875        u64 base;
 876
 877        rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
 878        rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
 879        rdev->mc.vram_is_ddr = true;
 880        rdev->mc.vram_width = 128;
 881        rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 882        rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 883        rdev->mc.visible_vram_size = rdev->mc.aper_size;
 884        rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
 885        base = RREG32_MC(R_000004_MC_FB_LOCATION);
 886        base = G_000004_MC_FB_START(base) << 16;
 887        radeon_vram_location(rdev, &rdev->mc, base);
 888        rdev->mc.gtt_base_align = 0;
 889        radeon_gtt_location(rdev, &rdev->mc);
 890        radeon_update_bandwidth_info(rdev);
 891}
 892
 893void rs600_bandwidth_update(struct radeon_device *rdev)
 894{
 895        struct drm_display_mode *mode0 = NULL;
 896        struct drm_display_mode *mode1 = NULL;
 897        u32 d1mode_priority_a_cnt, d2mode_priority_a_cnt;
 898        /* FIXME: implement full support */
 899
 900        if (!rdev->mode_info.mode_config_initialized)
 901                return;
 902
 903        radeon_update_display_priority(rdev);
 904
 905        if (rdev->mode_info.crtcs[0]->base.enabled)
 906                mode0 = &rdev->mode_info.crtcs[0]->base.mode;
 907        if (rdev->mode_info.crtcs[1]->base.enabled)
 908                mode1 = &rdev->mode_info.crtcs[1]->base.mode;
 909
 910        rs690_line_buffer_adjust(rdev, mode0, mode1);
 911
 912        if (rdev->disp_priority == 2) {
 913                d1mode_priority_a_cnt = RREG32(R_006548_D1MODE_PRIORITY_A_CNT);
 914                d2mode_priority_a_cnt = RREG32(R_006D48_D2MODE_PRIORITY_A_CNT);
 915                d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
 916                d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
 917                WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
 918                WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
 919                WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
 920                WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
 921        }
 922}
 923
 924uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 925{
 926        unsigned long flags;
 927        u32 r;
 928
 929        spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 930        WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 931                S_000070_MC_IND_CITF_ARB0(1));
 932        r = RREG32(R_000074_MC_IND_DATA);
 933        spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 934        return r;
 935}
 936
 937void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 938{
 939        unsigned long flags;
 940
 941        spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 942        WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
 943                S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
 944        WREG32(R_000074_MC_IND_DATA, v);
 945        spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 946}
 947
 948static void rs600_debugfs(struct radeon_device *rdev)
 949{
 950        if (r100_debugfs_rbbm_init(rdev))
 951                DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 952}
 953
 954void rs600_set_safe_registers(struct radeon_device *rdev)
 955{
 956        rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
 957        rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
 958}
 959
 960static void rs600_mc_program(struct radeon_device *rdev)
 961{
 962        struct rv515_mc_save save;
 963
 964        /* Stops all mc clients */
 965        rv515_mc_stop(rdev, &save);
 966
 967        /* Wait for mc idle */
 968        if (rs600_mc_wait_for_idle(rdev))
 969                dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 970
 971        /* FIXME: What does AGP means for such chipset ? */
 972        WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
 973        WREG32_MC(R_000006_AGP_BASE, 0);
 974        WREG32_MC(R_000007_AGP_BASE_2, 0);
 975        /* Program MC */
 976        WREG32_MC(R_000004_MC_FB_LOCATION,
 977                        S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
 978                        S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
 979        WREG32(R_000134_HDP_FB_LOCATION,
 980                S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 981
 982        rv515_mc_resume(rdev, &save);
 983}
 984
 985static int rs600_startup(struct radeon_device *rdev)
 986{
 987        int r;
 988
 989        rs600_mc_program(rdev);
 990        /* Resume clock */
 991        rv515_clock_startup(rdev);
 992        /* Initialize GPU configuration (# pipes, ...) */
 993        rs600_gpu_init(rdev);
 994        /* Initialize GART (initialize after TTM so we can allocate
 995         * memory through TTM but finalize after TTM) */
 996        r = rs600_gart_enable(rdev);
 997        if (r)
 998                return r;
 999
1000        /* allocate wb buffer */
1001        r = radeon_wb_init(rdev);
1002        if (r)
1003                return r;
1004
1005        r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1006        if (r) {
1007                dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1008                return r;
1009        }
1010
1011        /* Enable IRQ */
1012        if (!rdev->irq.installed) {
1013                r = radeon_irq_kms_init(rdev);
1014                if (r)
1015                        return r;
1016        }
1017
1018        rs600_irq_set(rdev);
1019        rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
1020        /* 1M ring buffer */
1021        r = r100_cp_init(rdev, 1024 * 1024);
1022        if (r) {
1023                dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
1024                return r;
1025        }
1026
1027        r = radeon_ib_pool_init(rdev);
1028        if (r) {
1029                dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1030                return r;
1031        }
1032
1033        r = radeon_audio_init(rdev);
1034        if (r) {
1035                dev_err(rdev->dev, "failed initializing audio\n");
1036                return r;
1037        }
1038
1039        return 0;
1040}
1041
1042int rs600_resume(struct radeon_device *rdev)
1043{
1044        int r;
1045
1046        /* Make sur GART are not working */
1047        rs600_gart_disable(rdev);
1048        /* Resume clock before doing reset */
1049        rv515_clock_startup(rdev);
1050        /* Reset gpu before posting otherwise ATOM will enter infinite loop */
1051        if (radeon_asic_reset(rdev)) {
1052                dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1053                        RREG32(R_000E40_RBBM_STATUS),
1054                        RREG32(R_0007C0_CP_STAT));
1055        }
1056        /* post */
1057        atom_asic_init(rdev->mode_info.atom_context);
1058        /* Resume clock after posting */
1059        rv515_clock_startup(rdev);
1060        /* Initialize surface registers */
1061        radeon_surface_init(rdev);
1062
1063        rdev->accel_working = true;
1064        r = rs600_startup(rdev);
1065        if (r) {
1066                rdev->accel_working = false;
1067        }
1068        return r;
1069}
1070
1071int rs600_suspend(struct radeon_device *rdev)
1072{
1073        radeon_pm_suspend(rdev);
1074        radeon_audio_fini(rdev);
1075        r100_cp_disable(rdev);
1076        radeon_wb_disable(rdev);
1077        rs600_irq_disable(rdev);
1078        rs600_gart_disable(rdev);
1079        return 0;
1080}
1081
1082void rs600_fini(struct radeon_device *rdev)
1083{
1084        radeon_pm_fini(rdev);
1085        radeon_audio_fini(rdev);
1086        r100_cp_fini(rdev);
1087        radeon_wb_fini(rdev);
1088        radeon_ib_pool_fini(rdev);
1089        radeon_gem_fini(rdev);
1090        rs600_gart_fini(rdev);
1091        radeon_irq_kms_fini(rdev);
1092        radeon_fence_driver_fini(rdev);
1093        radeon_bo_fini(rdev);
1094        radeon_atombios_fini(rdev);
1095        kfree(rdev->bios);
1096        rdev->bios = NULL;
1097}
1098
1099int rs600_init(struct radeon_device *rdev)
1100{
1101        int r;
1102
1103        /* Disable VGA */
1104        rv515_vga_render_disable(rdev);
1105        /* Initialize scratch registers */
1106        radeon_scratch_init(rdev);
1107        /* Initialize surface registers */
1108        radeon_surface_init(rdev);
1109        /* restore some register to sane defaults */
1110        r100_restore_sanity(rdev);
1111        /* BIOS */
1112        if (!radeon_get_bios(rdev)) {
1113                if (ASIC_IS_AVIVO(rdev))
1114                        return -EINVAL;
1115        }
1116        if (rdev->is_atom_bios) {
1117                r = radeon_atombios_init(rdev);
1118                if (r)
1119                        return r;
1120        } else {
1121                dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
1122                return -EINVAL;
1123        }
1124        /* Reset gpu before posting otherwise ATOM will enter infinite loop */
1125        if (radeon_asic_reset(rdev)) {
1126                dev_warn(rdev->dev,
1127                        "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1128                        RREG32(R_000E40_RBBM_STATUS),
1129                        RREG32(R_0007C0_CP_STAT));
1130        }
1131        /* check if cards are posted or not */
1132        if (radeon_boot_test_post_card(rdev) == false)
1133                return -EINVAL;
1134
1135        /* Initialize clocks */
1136        radeon_get_clock_info(rdev->ddev);
1137        /* initialize memory controller */
1138        rs600_mc_init(rdev);
1139        rs600_debugfs(rdev);
1140        /* Fence driver */
1141        r = radeon_fence_driver_init(rdev);
1142        if (r)
1143                return r;
1144        /* Memory manager */
1145        r = radeon_bo_init(rdev);
1146        if (r)
1147                return r;
1148        r = rs600_gart_init(rdev);
1149        if (r)
1150                return r;
1151        rs600_set_safe_registers(rdev);
1152
1153        /* Initialize power management */
1154        radeon_pm_init(rdev);
1155
1156        rdev->accel_working = true;
1157        r = rs600_startup(rdev);
1158        if (r) {
1159                /* Somethings want wront with the accel init stop accel */
1160                dev_err(rdev->dev, "Disabling GPU acceleration\n");
1161                r100_cp_fini(rdev);
1162                radeon_wb_fini(rdev);
1163                radeon_ib_pool_fini(rdev);
1164                rs600_gart_fini(rdev);
1165                radeon_irq_kms_fini(rdev);
1166                rdev->accel_working = false;
1167        }
1168        return 0;
1169}
1170