drivers/gpu/drm/radeon/radeon_display.c

   1 /*
   2  * Copyright 2007-8 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: Dave Airlie
  24  *          Alex Deucher
  25  */
  26
  27 #include <linux/pci.h>
  28 #include <linux/pm_runtime.h>
  29 #include <linux/gcd.h>
  30
  31 #include <asm/div64.h>
  32
  33 #include <drm/drm_crtc_helper.h>
  34 #include <drm/drm_device.h>
  35 #include <drm/drm_drv.h>
  36 #include <drm/drm_edid.h>
  37 #include <drm/drm_fb_helper.h>
  38 #include <drm/drm_fourcc.h>
  39 #include <drm/drm_gem_framebuffer_helper.h>
  40 #include <drm/drm_plane_helper.h>
  41 #include <drm/drm_probe_helper.h>
  42 #include <drm/drm_vblank.h>
  43 #include <drm/radeon_drm.h>
  44
  45 #include "atom.h"
  46 #include "radeon.h"
  47
  48 u32 radeon_get_vblank_counter_kms(struct drm_crtc *crtc);
  49 int radeon_enable_vblank_kms(struct drm_crtc *crtc);
  50 void radeon_disable_vblank_kms(struct drm_crtc *crtc);
  51
  52 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
  53 {
  54         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  55         struct drm_device *dev = crtc->dev;
  56         struct radeon_device *rdev = dev->dev_private;
  57         u16 *r, *g, *b;
  58         int i;
  59
  60         DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
  61         WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0);
  62
  63         WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
  64         WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
  65         WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
  66
  67         WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
  68         WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
  69         WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
  70
  71         WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id);
  72         WREG32(AVIVO_DC_LUT_RW_MODE, 0);
  73         WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f);
  74
  75         WREG8(AVIVO_DC_LUT_RW_INDEX, 0);
  76         r = crtc->gamma_store;
  77         g = r + crtc->gamma_size;
  78         b = g + crtc->gamma_size;
  79         for (i = 0; i < 256; i++) {
  80                 WREG32(AVIVO_DC_LUT_30_COLOR,
  81                        ((*r++ & 0xffc0) << 14) |
  82                        ((*g++ & 0xffc0) << 4) |
  83                        (*b++ >> 6));
  84         }
  85
  86         /* Only change bit 0 of LUT_SEL, other bits are set elsewhere */
  87         WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id, ~1);
  88 }
  89
  90 static void dce4_crtc_load_lut(struct drm_crtc *crtc)
  91 {
  92         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
  93         struct drm_device *dev = crtc->dev;
  94         struct radeon_device *rdev = dev->dev_private;
  95         u16 *r, *g, *b;
  96         int i;
  97
  98         DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
  99         WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
 100
 101         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
 102         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
 103         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
 104
 105         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
 106         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
 107         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
 108
 109         WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
 110         WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
 111
 112         WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
 113         r = crtc->gamma_store;
 114         g = r + crtc->gamma_size;
 115         b = g + crtc->gamma_size;
 116         for (i = 0; i < 256; i++) {
 117                 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
 118                        ((*r++ & 0xffc0) << 14) |
 119                        ((*g++ & 0xffc0) << 4) |
 120                        (*b++ >> 6));
 121         }
 122 }
 123
 124 static void dce5_crtc_load_lut(struct drm_crtc *crtc)
 125 {
 126         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 127         struct drm_device *dev = crtc->dev;
 128         struct radeon_device *rdev = dev->dev_private;
 129         u16 *r, *g, *b;
 130         int i;
 131
 132         DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
 133
 134         msleep(10);
 135
 136         WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
 137                (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) |
 138                 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS)));
 139         WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset,
 140                NI_GRPH_PRESCALE_BYPASS);
 141         WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset,
 142                NI_OVL_PRESCALE_BYPASS);
 143         WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset,
 144                (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) |
 145                 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT)));
 146
 147         WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
 148
 149         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
 150         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
 151         WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
 152
 153         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
 154         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
 155         WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
 156
 157         WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
 158         WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
 159
 160         WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
 161         r = crtc->gamma_store;
 162         g = r + crtc->gamma_size;
 163         b = g + crtc->gamma_size;
 164         for (i = 0; i < 256; i++) {
 165                 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
 166                        ((*r++ & 0xffc0) << 14) |
 167                        ((*g++ & 0xffc0) << 4) |
 168                        (*b++ >> 6));
 169         }
 170
 171         WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset,
 172                (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
 173                 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
 174                 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
 175                 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS)));
 176         WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset,
 177                (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) |
 178                 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS)));
 179         WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset,
 180                (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) |
 181                 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS)));
 182         WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
 183                (NI_OUTPUT_CSC_GRPH_MODE(radeon_crtc->output_csc) |
 184                 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS)));
 185         /* XXX match this to the depth of the crtc fmt block, move to modeset? */
 186         WREG32(0x6940 + radeon_crtc->crtc_offset, 0);
 187         if (ASIC_IS_DCE8(rdev)) {
 188                 /* XXX this only needs to be programmed once per crtc at startup,
 189                  * not sure where the best place for it is
 190                  */
 191                 WREG32(CIK_ALPHA_CONTROL + radeon_crtc->crtc_offset,
 192                        CIK_CURSOR_ALPHA_BLND_ENA);
 193         }
 194 }
 195
 196 static void legacy_crtc_load_lut(struct drm_crtc *crtc)
 197 {
 198         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 199         struct drm_device *dev = crtc->dev;
 200         struct radeon_device *rdev = dev->dev_private;
 201         u16 *r, *g, *b;
 202         int i;
 203         uint32_t dac2_cntl;
 204
 205         dac2_cntl = RREG32(RADEON_DAC_CNTL2);
 206         if (radeon_crtc->crtc_id == 0)
 207                 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
 208         else
 209                 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL;
 210         WREG32(RADEON_DAC_CNTL2, dac2_cntl);
 211
 212         WREG8(RADEON_PALETTE_INDEX, 0);
 213         r = crtc->gamma_store;
 214         g = r + crtc->gamma_size;
 215         b = g + crtc->gamma_size;
 216         for (i = 0; i < 256; i++) {
 217                 WREG32(RADEON_PALETTE_30_DATA,
 218                        ((*r++ & 0xffc0) << 14) |
 219                        ((*g++ & 0xffc0) << 4) |
 220                        (*b++ >> 6));
 221         }
 222 }
 223
 224 void radeon_crtc_load_lut(struct drm_crtc *crtc)
 225 {
 226         struct drm_device *dev = crtc->dev;
 227         struct radeon_device *rdev = dev->dev_private;
 228
 229         if (!crtc->enabled)
 230                 return;
 231
 232         if (ASIC_IS_DCE5(rdev))
 233                 dce5_crtc_load_lut(crtc);
 234         else if (ASIC_IS_DCE4(rdev))
 235                 dce4_crtc_load_lut(crtc);
 236         else if (ASIC_IS_AVIVO(rdev))
 237                 avivo_crtc_load_lut(crtc);
 238         else
 239                 legacy_crtc_load_lut(crtc);
 240 }
 241
 242 static int radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
 243                                  u16 *blue, uint32_t size,
 244                                  struct drm_modeset_acquire_ctx *ctx)
 245 {
 246         radeon_crtc_load_lut(crtc);
 247
 248         return 0;
 249 }
 250
 251 static void radeon_crtc_destroy(struct drm_crtc *crtc)
 252 {
 253         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 254
 255         drm_crtc_cleanup(crtc);
 256         destroy_workqueue(radeon_crtc->flip_queue);
 257         kfree(radeon_crtc);
 258 }
 259
 260 /**
 261  * radeon_unpin_work_func - unpin old buffer object
 262  *
 263  * @__work - kernel work item
 264  *
 265  * Unpin the old frame buffer object outside of the interrupt handler
 266  */
 267 static void radeon_unpin_work_func(struct work_struct *__work)
 268 {
 269         struct radeon_flip_work *work =
 270                 container_of(__work, struct radeon_flip_work, unpin_work);
 271         int r;
 272
 273         /* unpin of the old buffer */
 274         r = radeon_bo_reserve(work->old_rbo, false);
 275         if (likely(r == 0)) {
 276                 r = radeon_bo_unpin(work->old_rbo);
 277                 if (unlikely(r != 0)) {
 278                         DRM_ERROR("failed to unpin buffer after flip\n");
 279                 }
 280                 radeon_bo_unreserve(work->old_rbo);
 281         } else
 282                 DRM_ERROR("failed to reserve buffer after flip\n");
 283
 284         drm_gem_object_put(&work->old_rbo->tbo.base);
 285         kfree(work);
 286 }
 287
 288 void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id)
 289 {
 290         struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
 291         unsigned long flags;
 292         u32 update_pending;
 293         int vpos, hpos;
 294
 295         /* can happen during initialization */
 296         if (radeon_crtc == NULL)
 297                 return;
 298
 299         /* Skip the pageflip completion check below (based on polling) on
 300          * asics which reliably support hw pageflip completion irqs. pflip
 301          * irqs are a reliable and race-free method of handling pageflip
 302          * completion detection. A use_pflipirq module parameter < 2 allows
 303          * to override this in case of asics with faulty pflip irqs.
 304          * A module parameter of 0 would only use this polling based path,
 305          * a parameter of 1 would use pflip irq only as a backup to this
 306          * path, as in Linux 3.16.
 307          */
 308         if ((radeon_use_pflipirq == 2) && ASIC_IS_DCE4(rdev))
 309                 return;
 310
 311         spin_lock_irqsave(&rdev->ddev->event_lock, flags);
 312         if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) {
 313                 DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != "
 314                                  "RADEON_FLIP_SUBMITTED(%d)\n",
 315                                  radeon_crtc->flip_status,
 316                                  RADEON_FLIP_SUBMITTED);
 317                 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
 318                 return;
 319         }
 320
 321         update_pending = radeon_page_flip_pending(rdev, crtc_id);
 322
 323         /* Has the pageflip already completed in crtc, or is it certain
 324          * to complete in this vblank? GET_DISTANCE_TO_VBLANKSTART provides
 325          * distance to start of "fudged earlier" vblank in vpos, distance to
 326          * start of real vblank in hpos. vpos >= 0 && hpos < 0 means we are in
 327          * the last few scanlines before start of real vblank, where the vblank
 328          * irq can fire, so we have sampled update_pending a bit too early and
 329          * know the flip will complete at leading edge of the upcoming real
 330          * vblank. On pre-AVIVO hardware, flips also complete inside the real
 331          * vblank, not only at leading edge, so if update_pending for hpos >= 0
 332          *  == inside real vblank, the flip will complete almost immediately.
 333          * Note that this method of completion handling is still not 100% race
 334          * free, as we could execute before the radeon_flip_work_func managed
 335          * to run and set the RADEON_FLIP_SUBMITTED status, thereby we no-op,
 336          * but the flip still gets programmed into hw and completed during
 337          * vblank, leading to a delayed emission of the flip completion event.
 338          * This applies at least to pre-AVIVO hardware, where flips are always
 339          * completing inside vblank, not only at leading edge of vblank.
 340          */
 341         if (update_pending &&
 342             (DRM_SCANOUTPOS_VALID &
 343              radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id,
 344                                         GET_DISTANCE_TO_VBLANKSTART,
 345                                         &vpos, &hpos, NULL, NULL,
 346                                         &rdev->mode_info.crtcs[crtc_id]->base.hwmode)) &&
 347             ((vpos >= 0 && hpos < 0) || (hpos >= 0 && !ASIC_IS_AVIVO(rdev)))) {
 348                 /* crtc didn't flip in this target vblank interval,
 349                  * but flip is pending in crtc. Based on the current
 350                  * scanout position we know that the current frame is
 351                  * (nearly) complete and the flip will (likely)
 352                  * complete before the start of the next frame.
 353                  */
 354                 update_pending = 0;
 355         }
 356         spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
 357         if (!update_pending)
 358                 radeon_crtc_handle_flip(rdev, crtc_id);
 359 }
 360
 361 /**
 362  * radeon_crtc_handle_flip - page flip completed
 363  *
 364  * @rdev: radeon device pointer
 365  * @crtc_id: crtc number this event is for
 366  *
 367  * Called when we are sure that a page flip for this crtc is completed.
 368  */
 369 void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
 370 {
 371         struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
 372         struct radeon_flip_work *work;
 373         unsigned long flags;
 374
 375         /* this can happen at init */
 376         if (radeon_crtc == NULL)
 377                 return;
 378
 379         spin_lock_irqsave(&rdev->ddev->event_lock, flags);
 380         work = radeon_crtc->flip_work;
 381         if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) {
 382                 DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != "
 383                                  "RADEON_FLIP_SUBMITTED(%d)\n",
 384                                  radeon_crtc->flip_status,
 385                                  RADEON_FLIP_SUBMITTED);
 386                 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
 387                 return;
 388         }
 389
 390         /* Pageflip completed. Clean up. */
 391         radeon_crtc->flip_status = RADEON_FLIP_NONE;
 392         radeon_crtc->flip_work = NULL;
 393
 394         /* wakeup userspace */
 395         if (work->event)
 396                 drm_crtc_send_vblank_event(&radeon_crtc->base, work->event);
 397
 398         spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
 399
 400         drm_crtc_vblank_put(&radeon_crtc->base);
 401         radeon_irq_kms_pflip_irq_put(rdev, work->crtc_id);
 402         queue_work(radeon_crtc->flip_queue, &work->unpin_work);
 403 }
 404
 405 /**
 406  * radeon_flip_work_func - page flip framebuffer
 407  *
 408  * @work - kernel work item
 409  *
 410  * Wait for the buffer object to become idle and do the actual page flip
 411  */
 412 static void radeon_flip_work_func(struct work_struct *__work)
 413 {
 414         struct radeon_flip_work *work =
 415                 container_of(__work, struct radeon_flip_work, flip_work);
 416         struct radeon_device *rdev = work->rdev;
 417         struct drm_device *dev = rdev->ddev;
 418         struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[work->crtc_id];
 419
 420         struct drm_crtc *crtc = &radeon_crtc->base;
 421         unsigned long flags;
 422         int r;
 423         int vpos, hpos;
 424
 425         down_read(&rdev->exclusive_lock);
 426         if (work->fence) {
 427                 struct radeon_fence *fence;
 428
 429                 fence = to_radeon_fence(work->fence);
 430                 if (fence && fence->rdev == rdev) {
 431                         r = radeon_fence_wait(fence, false);
 432                         if (r == -EDEADLK) {
 433                                 up_read(&rdev->exclusive_lock);
 434                                 do {
 435                                         r = radeon_gpu_reset(rdev);
 436                                 } while (r == -EAGAIN);
 437                                 down_read(&rdev->exclusive_lock);
 438                         }
 439                 } else
 440                         r = dma_fence_wait(work->fence, false);
 441
 442                 if (r)
 443                         DRM_ERROR("failed to wait on page flip fence (%d)!\n", r);
 444
 445                 /* We continue with the page flip even if we failed to wait on
 446                  * the fence, otherwise the DRM core and userspace will be
 447                  * confused about which BO the CRTC is scanning out
 448                  */
 449
 450                 dma_fence_put(work->fence);
 451                 work->fence = NULL;
 452         }
 453
 454         /* Wait until we're out of the vertical blank period before the one
 455          * targeted by the flip. Always wait on pre DCE4 to avoid races with
 456          * flip completion handling from vblank irq, as these old asics don't
 457          * have reliable pageflip completion interrupts.
 458          */
 459         while (radeon_crtc->enabled &&
 460                 (radeon_get_crtc_scanoutpos(dev, work->crtc_id, 0,
 461                                             &vpos, &hpos, NULL, NULL,
 462                                             &crtc->hwmode)
 463                 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
 464                 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
 465                 (!ASIC_IS_AVIVO(rdev) ||
 466                 ((int) (work->target_vblank -
 467                 crtc->funcs->get_vblank_counter(crtc)) > 0)))
 468                 usleep_range(1000, 2000);
 469
 470         /* We borrow the event spin lock for protecting flip_status */
 471         spin_lock_irqsave(&crtc->dev->event_lock, flags);
 472
 473         /* set the proper interrupt */
 474         radeon_irq_kms_pflip_irq_get(rdev, radeon_crtc->crtc_id);
 475
 476         /* do the flip (mmio) */
 477         radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base, work->async);
 478
 479         radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED;
 480         spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 481         up_read(&rdev->exclusive_lock);
 482 }
 483
 484 static int radeon_crtc_page_flip_target(struct drm_crtc *crtc,
 485                                         struct drm_framebuffer *fb,
 486                                         struct drm_pending_vblank_event *event,
 487                                         uint32_t page_flip_flags,
 488                                         uint32_t target,
 489                                         struct drm_modeset_acquire_ctx *ctx)
 490 {
 491         struct drm_device *dev = crtc->dev;
 492         struct radeon_device *rdev = dev->dev_private;
 493         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 494         struct drm_gem_object *obj;
 495         struct radeon_flip_work *work;
 496         struct radeon_bo *new_rbo;
 497         uint32_t tiling_flags, pitch_pixels;
 498         uint64_t base;
 499         unsigned long flags;
 500         int r;
 501
 502         work = kzalloc(sizeof *work, GFP_KERNEL);
 503         if (work == NULL)
 504                 return -ENOMEM;
 505
 506         INIT_WORK(&work->flip_work, radeon_flip_work_func);
 507         INIT_WORK(&work->unpin_work, radeon_unpin_work_func);
 508
 509         work->rdev = rdev;
 510         work->crtc_id = radeon_crtc->crtc_id;
 511         work->event = event;
 512         work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
 513
 514         /* schedule unpin of the old buffer */
 515         obj = crtc->primary->fb->obj[0];
 516
 517         /* take a reference to the old object */
 518         drm_gem_object_get(obj);
 519         work->old_rbo = gem_to_radeon_bo(obj);
 520
 521         obj = fb->obj[0];
 522         new_rbo = gem_to_radeon_bo(obj);
 523
 524         /* pin the new buffer */
 525         DRM_DEBUG_DRIVER("flip-ioctl() cur_rbo = %p, new_rbo = %p\n",
 526                          work->old_rbo, new_rbo);
 527
 528         r = radeon_bo_reserve(new_rbo, false);
 529         if (unlikely(r != 0)) {
 530                 DRM_ERROR("failed to reserve new rbo buffer before flip\n");
 531                 goto cleanup;
 532         }
 533         /* Only 27 bit offset for legacy CRTC */
 534         r = radeon_bo_pin_restricted(new_rbo, RADEON_GEM_DOMAIN_VRAM,
 535                                      ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, &base);
 536         if (unlikely(r != 0)) {
 537                 radeon_bo_unreserve(new_rbo);
 538                 r = -EINVAL;
 539                 DRM_ERROR("failed to pin new rbo buffer before flip\n");
 540                 goto cleanup;
 541         }
 542         work->fence = dma_fence_get(dma_resv_get_excl(new_rbo->tbo.base.resv));
 543         radeon_bo_get_tiling_flags(new_rbo, &tiling_flags, NULL);
 544         radeon_bo_unreserve(new_rbo);
 545
 546         if (!ASIC_IS_AVIVO(rdev)) {
 547                 /* crtc offset is from display base addr not FB location */
 548                 base -= radeon_crtc->legacy_display_base_addr;
 549                 pitch_pixels = fb->pitches[0] / fb->format->cpp[0];
 550
 551                 if (tiling_flags & RADEON_TILING_MACRO) {
 552                         if (ASIC_IS_R300(rdev)) {
 553                                 base &= ~0x7ff;
 554                         } else {
 555                                 int byteshift = fb->format->cpp[0] * 8 >> 4;
 556                                 int tile_addr = (((crtc->y >> 3) * pitch_pixels +  crtc->x) >> (8 - byteshift)) << 11;
 557                                 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8);
 558                         }
 559                 } else {
 560                         int offset = crtc->y * pitch_pixels + crtc->x;
 561                         switch (fb->format->cpp[0] * 8) {
 562                         case 8:
 563                         default:
 564                                 offset *= 1;
 565                                 break;
 566                         case 15:
 567                         case 16:
 568                                 offset *= 2;
 569                                 break;
 570                         case 24:
 571                                 offset *= 3;
 572                                 break;
 573                         case 32:
 574                                 offset *= 4;
 575                                 break;
 576                         }
 577                         base += offset;
 578                 }
 579                 base &= ~7;
 580         }
 581         work->base = base;
 582         work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) +
 583                 crtc->funcs->get_vblank_counter(crtc);
 584
 585         /* We borrow the event spin lock for protecting flip_work */
 586         spin_lock_irqsave(&crtc->dev->event_lock, flags);
 587
 588         if (radeon_crtc->flip_status != RADEON_FLIP_NONE) {
 589                 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
 590                 spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 591                 r = -EBUSY;
 592                 goto pflip_cleanup;
 593         }
 594         radeon_crtc->flip_status = RADEON_FLIP_PENDING;
 595         radeon_crtc->flip_work = work;
 596
 597         /* update crtc fb */
 598         crtc->primary->fb = fb;
 599
 600         spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
 601
 602         queue_work(radeon_crtc->flip_queue, &work->flip_work);
 603         return 0;
 604
 605 pflip_cleanup:
 606         if (unlikely(radeon_bo_reserve(new_rbo, false) != 0)) {
 607                 DRM_ERROR("failed to reserve new rbo in error path\n");
 608                 goto cleanup;
 609         }
 610         if (unlikely(radeon_bo_unpin(new_rbo) != 0)) {
 611                 DRM_ERROR("failed to unpin new rbo in error path\n");
 612         }
 613         radeon_bo_unreserve(new_rbo);
 614
 615 cleanup:
 616         drm_gem_object_put(&work->old_rbo->tbo.base);
 617         dma_fence_put(work->fence);
 618         kfree(work);
 619         return r;
 620 }
 621
 622 static int
 623 radeon_crtc_set_config(struct drm_mode_set *set,
 624                        struct drm_modeset_acquire_ctx *ctx)
 625 {
 626         struct drm_device *dev;
 627         struct radeon_device *rdev;
 628         struct drm_crtc *crtc;
 629         bool active = false;
 630         int ret;
 631
 632         if (!set || !set->crtc)
 633                 return -EINVAL;
 634
 635         dev = set->crtc->dev;
 636
 637         ret = pm_runtime_get_sync(dev->dev);
 638         if (ret < 0) {
 639                 pm_runtime_put_autosuspend(dev->dev);
 640                 return ret;
 641         }
 642
 643         ret = drm_crtc_helper_set_config(set, ctx);
 644
 645         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 646                 if (crtc->enabled)
 647                         active = true;
 648
 649         pm_runtime_mark_last_busy(dev->dev);
 650
 651         rdev = dev->dev_private;
 652         /* if we have active crtcs and we don't have a power ref,
 653            take the current one */
 654         if (active && !rdev->have_disp_power_ref) {
 655                 rdev->have_disp_power_ref = true;
 656                 return ret;
 657         }
 658         /* if we have no active crtcs, then drop the power ref
 659            we got before */
 660         if (!active && rdev->have_disp_power_ref) {
 661                 pm_runtime_put_autosuspend(dev->dev);
 662                 rdev->have_disp_power_ref = false;
 663         }
 664
 665         /* drop the power reference we got coming in here */
 666         pm_runtime_put_autosuspend(dev->dev);
 667         return ret;
 668 }
 669
 670 static const struct drm_crtc_funcs radeon_crtc_funcs = {
 671         .cursor_set2 = radeon_crtc_cursor_set2,
 672         .cursor_move = radeon_crtc_cursor_move,
 673         .gamma_set = radeon_crtc_gamma_set,
 674         .set_config = radeon_crtc_set_config,
 675         .destroy = radeon_crtc_destroy,
 676         .page_flip_target = radeon_crtc_page_flip_target,
 677         .get_vblank_counter = radeon_get_vblank_counter_kms,
 678         .enable_vblank = radeon_enable_vblank_kms,
 679         .disable_vblank = radeon_disable_vblank_kms,
 680         .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
 681 };
 682
 683 static void radeon_crtc_init(struct drm_device *dev, int index)
 684 {
 685         struct radeon_device *rdev = dev->dev_private;
 686         struct radeon_crtc *radeon_crtc;
 687
 688         radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
 689         if (radeon_crtc == NULL)
 690                 return;
 691
 692         drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
 693
 694         drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
 695         radeon_crtc->crtc_id = index;
 696         radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0);
 697         rdev->mode_info.crtcs[index] = radeon_crtc;
 698
 699         if (rdev->family >= CHIP_BONAIRE) {
 700                 radeon_crtc->max_cursor_width = CIK_CURSOR_WIDTH;
 701                 radeon_crtc->max_cursor_height = CIK_CURSOR_HEIGHT;
 702         } else {
 703                 radeon_crtc->max_cursor_width = CURSOR_WIDTH;
 704                 radeon_crtc->max_cursor_height = CURSOR_HEIGHT;
 705         }
 706         dev->mode_config.cursor_width = radeon_crtc->max_cursor_width;
 707         dev->mode_config.cursor_height = radeon_crtc->max_cursor_height;
 708
 709 #if 0
 710         radeon_crtc->mode_set.crtc = &radeon_crtc->base;
 711         radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
 712         radeon_crtc->mode_set.num_connectors = 0;
 713 #endif
 714
 715         if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom))
 716                 radeon_atombios_init_crtc(dev, radeon_crtc);
 717         else
 718                 radeon_legacy_init_crtc(dev, radeon_crtc);
 719 }
 720
 721 static const char *encoder_names[38] = {
 722         "NONE",
 723         "INTERNAL_LVDS",
 724         "INTERNAL_TMDS1",
 725         "INTERNAL_TMDS2",
 726         "INTERNAL_DAC1",
 727         "INTERNAL_DAC2",
 728         "INTERNAL_SDVOA",
 729         "INTERNAL_SDVOB",
 730         "SI170B",
 731         "CH7303",
 732         "CH7301",
 733         "INTERNAL_DVO1",
 734         "EXTERNAL_SDVOA",
 735         "EXTERNAL_SDVOB",
 736         "TITFP513",
 737         "INTERNAL_LVTM1",
 738         "VT1623",
 739         "HDMI_SI1930",
 740         "HDMI_INTERNAL",
 741         "INTERNAL_KLDSCP_TMDS1",
 742         "INTERNAL_KLDSCP_DVO1",
 743         "INTERNAL_KLDSCP_DAC1",
 744         "INTERNAL_KLDSCP_DAC2",
 745         "SI178",
 746         "MVPU_FPGA",
 747         "INTERNAL_DDI",
 748         "VT1625",
 749         "HDMI_SI1932",
 750         "DP_AN9801",
 751         "DP_DP501",
 752         "INTERNAL_UNIPHY",
 753         "INTERNAL_KLDSCP_LVTMA",
 754         "INTERNAL_UNIPHY1",
 755         "INTERNAL_UNIPHY2",
 756         "NUTMEG",
 757         "TRAVIS",
 758         "INTERNAL_VCE",
 759         "INTERNAL_UNIPHY3",
 760 };
 761
 762 static const char *hpd_names[6] = {
 763         "HPD1",
 764         "HPD2",
 765         "HPD3",
 766         "HPD4",
 767         "HPD5",
 768         "HPD6",
 769 };
 770
 771 static void radeon_print_display_setup(struct drm_device *dev)
 772 {
 773         struct drm_connector *connector;
 774         struct radeon_connector *radeon_connector;
 775         struct drm_encoder *encoder;
 776         struct radeon_encoder *radeon_encoder;
 777         uint32_t devices;
 778         int i = 0;
 779
 780         DRM_INFO("Radeon Display Connectors\n");
 781         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 782                 radeon_connector = to_radeon_connector(connector);
 783                 DRM_INFO("Connector %d:\n", i);
 784                 DRM_INFO("  %s\n", connector->name);
 785                 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
 786                         DRM_INFO("  %s\n", hpd_names[radeon_connector->hpd.hpd]);
 787                 if (radeon_connector->ddc_bus) {
 788                         DRM_INFO("  DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
 789                                  radeon_connector->ddc_bus->rec.mask_clk_reg,
 790                                  radeon_connector->ddc_bus->rec.mask_data_reg,
 791                                  radeon_connector->ddc_bus->rec.a_clk_reg,
 792                                  radeon_connector->ddc_bus->rec.a_data_reg,
 793                                  radeon_connector->ddc_bus->rec.en_clk_reg,
 794                                  radeon_connector->ddc_bus->rec.en_data_reg,
 795                                  radeon_connector->ddc_bus->rec.y_clk_reg,
 796                                  radeon_connector->ddc_bus->rec.y_data_reg);
 797                         if (radeon_connector->router.ddc_valid)
 798                                 DRM_INFO("  DDC Router 0x%x/0x%x\n",
 799                                          radeon_connector->router.ddc_mux_control_pin,
 800                                          radeon_connector->router.ddc_mux_state);
 801                         if (radeon_connector->router.cd_valid)
 802                                 DRM_INFO("  Clock/Data Router 0x%x/0x%x\n",
 803                                          radeon_connector->router.cd_mux_control_pin,
 804                                          radeon_connector->router.cd_mux_state);
 805                 } else {
 806                         if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
 807                             connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 808                             connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 809                             connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
 810                             connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 811                             connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
 812                                 DRM_INFO("  DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
 813                 }
 814                 DRM_INFO("  Encoders:\n");
 815                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 816                         radeon_encoder = to_radeon_encoder(encoder);
 817                         devices = radeon_encoder->devices & radeon_connector->devices;
 818                         if (devices) {
 819                                 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
 820                                         DRM_INFO("    CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 821                                 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
 822                                         DRM_INFO("    CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
 823                                 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
 824                                         DRM_INFO("    LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 825                                 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
 826                                         DRM_INFO("    DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 827                                 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
 828                                         DRM_INFO("    DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
 829                                 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
 830                                         DRM_INFO("    DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
 831                                 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
 832                                         DRM_INFO("    DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
 833                                 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
 834                                         DRM_INFO("    DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
 835                                 if (devices & ATOM_DEVICE_DFP6_SUPPORT)
 836                                         DRM_INFO("    DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]);
 837                                 if (devices & ATOM_DEVICE_TV1_SUPPORT)
 838                                         DRM_INFO("    TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 839                                 if (devices & ATOM_DEVICE_CV_SUPPORT)
 840                                         DRM_INFO("    CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
 841                         }
 842                 }
 843                 i++;
 844         }
 845 }
 846
 847 static bool radeon_setup_enc_conn(struct drm_device *dev)
 848 {
 849         struct radeon_device *rdev = dev->dev_private;
 850         bool ret = false;
 851
 852         if (rdev->bios) {
 853                 if (rdev->is_atom_bios) {
 854                         ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
 855                         if (!ret)
 856                                 ret = radeon_get_atom_connector_info_from_object_table(dev);
 857                 } else {
 858                         ret = radeon_get_legacy_connector_info_from_bios(dev);
 859                         if (!ret)
 860                                 ret = radeon_get_legacy_connector_info_from_table(dev);
 861                 }
 862         } else {
 863                 if (!ASIC_IS_AVIVO(rdev))
 864                         ret = radeon_get_legacy_connector_info_from_table(dev);
 865         }
 866         if (ret) {
 867                 radeon_setup_encoder_clones(dev);
 868                 radeon_print_display_setup(dev);
 869         }
 870
 871         return ret;
 872 }
 873
 874 /* avivo */
 875
 876 /**
 877  * avivo_reduce_ratio - fractional number reduction
 878  *
 879  * @nom: nominator
 880  * @den: denominator
 881  * @nom_min: minimum value for nominator
 882  * @den_min: minimum value for denominator
 883  *
 884  * Find the greatest common divisor and apply it on both nominator and
 885  * denominator, but make nominator and denominator are at least as large
 886  * as their minimum values.
 887  */
 888 static void avivo_reduce_ratio(unsigned *nom, unsigned *den,
 889                                unsigned nom_min, unsigned den_min)
 890 {
 891         unsigned tmp;
 892
 893         /* reduce the numbers to a simpler ratio */
 894         tmp = gcd(*nom, *den);
 895         *nom /= tmp;
 896         *den /= tmp;
 897
 898         /* make sure nominator is large enough */
 899         if (*nom < nom_min) {
 900                 tmp = DIV_ROUND_UP(nom_min, *nom);
 901                 *nom *= tmp;
 902                 *den *= tmp;
 903         }
 904
 905         /* make sure the denominator is large enough */
 906         if (*den < den_min) {
 907                 tmp = DIV_ROUND_UP(den_min, *den);
 908                 *nom *= tmp;
 909                 *den *= tmp;
 910         }
 911 }
 912
 913 /**
 914  * avivo_get_fb_ref_div - feedback and ref divider calculation
 915  *
 916  * @nom: nominator
 917  * @den: denominator
 918  * @post_div: post divider
 919  * @fb_div_max: feedback divider maximum
 920  * @ref_div_max: reference divider maximum
 921  * @fb_div: resulting feedback divider
 922  * @ref_div: resulting reference divider
 923  *
 924  * Calculate feedback and reference divider for a given post divider. Makes
 925  * sure we stay within the limits.
 926  */
 927 static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div,
 928                                  unsigned fb_div_max, unsigned ref_div_max,
 929                                  unsigned *fb_div, unsigned *ref_div)
 930 {
 931         /* limit reference * post divider to a maximum */
 932         ref_div_max = max(min(100 / post_div, ref_div_max), 1u);
 933
 934         /* get matching reference and feedback divider */
 935         *ref_div = min(max(den/post_div, 1u), ref_div_max);
 936         *fb_div = max(nom * *ref_div * post_div / den, 1u);
 937
 938         /* limit fb divider to its maximum */
 939         if (*fb_div > fb_div_max) {
 940                 *ref_div = (*ref_div * fb_div_max)/(*fb_div);
 941                 *fb_div = fb_div_max;
 942         }
 943 }
 944
 945 /**
 946  * radeon_compute_pll_avivo - compute PLL paramaters
 947  *
 948  * @pll: information about the PLL
 949  * @dot_clock_p: resulting pixel clock
 950  * fb_div_p: resulting feedback divider
 951  * frac_fb_div_p: fractional part of the feedback divider
 952  * ref_div_p: resulting reference divider
 953  * post_div_p: resulting reference divider
 954  *
 955  * Try to calculate the PLL parameters to generate the given frequency:
 956  * dot_clock = (ref_freq * feedback_div) / (ref_div * post_div)
 957  */
 958 void radeon_compute_pll_avivo(struct radeon_pll *pll,
 959                               u32 freq,
 960                               u32 *dot_clock_p,
 961                               u32 *fb_div_p,
 962                               u32 *frac_fb_div_p,
 963                               u32 *ref_div_p,
 964                               u32 *post_div_p)
 965 {
 966         unsigned target_clock = pll->flags & RADEON_PLL_USE_FRAC_FB_DIV ?
 967                 freq : freq / 10;
 968
 969         unsigned fb_div_min, fb_div_max, fb_div;
 970         unsigned post_div_min, post_div_max, post_div;
 971         unsigned ref_div_min, ref_div_max, ref_div;
 972         unsigned post_div_best, diff_best;
 973         unsigned nom, den;
 974
 975         /* determine allowed feedback divider range */
 976         fb_div_min = pll->min_feedback_div;
 977         fb_div_max = pll->max_feedback_div;
 978
 979         if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
 980                 fb_div_min *= 10;
 981                 fb_div_max *= 10;
 982         }
 983
 984         /* determine allowed ref divider range */
 985         if (pll->flags & RADEON_PLL_USE_REF_DIV)
 986                 ref_div_min = pll->reference_div;
 987         else
 988                 ref_div_min = pll->min_ref_div;
 989
 990         if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV &&
 991             pll->flags & RADEON_PLL_USE_REF_DIV)
 992                 ref_div_max = pll->reference_div;
 993         else if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP)
 994                 /* fix for problems on RS880 */
 995                 ref_div_max = min(pll->max_ref_div, 7u);
 996         else
 997                 ref_div_max = pll->max_ref_div;
 998
 999         /* determine allowed post divider range */
1000         if (pll->flags & RADEON_PLL_USE_POST_DIV) {
1001                 post_div_min = pll->post_div;
1002                 post_div_max = pll->post_div;
1003         } else {
1004                 unsigned vco_min, vco_max;
1005
1006                 if (pll->flags & RADEON_PLL_IS_LCD) {
1007                         vco_min = pll->lcd_pll_out_min;
1008                         vco_max = pll->lcd_pll_out_max;
1009                 } else {
1010                         vco_min = pll->pll_out_min;
1011                         vco_max = pll->pll_out_max;
1012                 }
1013
1014                 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
1015                         vco_min *= 10;
1016                         vco_max *= 10;
1017                 }
1018
1019                 post_div_min = vco_min / target_clock;
1020                 if ((target_clock * post_div_min) < vco_min)
1021                         ++post_div_min;
1022                 if (post_div_min < pll->min_post_div)
1023                         post_div_min = pll->min_post_div;
1024
1025                 post_div_max = vco_max / target_clock;
1026                 if ((target_clock * post_div_max) > vco_max)
1027                         --post_div_max;
1028                 if (post_div_max > pll->max_post_div)
1029                         post_div_max = pll->max_post_div;
1030         }
1031
1032         /* represent the searched ratio as fractional number */
1033         nom = target_clock;
1034         den = pll->reference_freq;
1035
1036         /* reduce the numbers to a simpler ratio */
1037         avivo_reduce_ratio(&nom, &den, fb_div_min, post_div_min);
1038
1039         /* now search for a post divider */
1040         if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP)
1041                 post_div_best = post_div_min;
1042         else
1043                 post_div_best = post_div_max;
1044         diff_best = ~0;
1045
1046         for (post_div = post_div_min; post_div <= post_div_max; ++post_div) {
1047                 unsigned diff;
1048                 avivo_get_fb_ref_div(nom, den, post_div, fb_div_max,
1049                                      ref_div_max, &fb_div, &ref_div);
1050                 diff = abs(target_clock - (pll->reference_freq * fb_div) /
1051                         (ref_div * post_div));
1052
1053                 if (diff < diff_best || (diff == diff_best &&
1054                     !(pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP))) {
1055
1056                         post_div_best = post_div;
1057                         diff_best = diff;
1058                 }
1059         }
1060         post_div = post_div_best;
1061
1062         /* get the feedback and reference divider for the optimal value */
1063         avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, ref_div_max,
1064                              &fb_div, &ref_div);
1065
1066         /* reduce the numbers to a simpler ratio once more */
1067         /* this also makes sure that the reference divider is large enough */
1068         avivo_reduce_ratio(&fb_div, &ref_div, fb_div_min, ref_div_min);
1069
1070         /* avoid high jitter with small fractional dividers */
1071         if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && (fb_div % 10)) {
1072                 fb_div_min = max(fb_div_min, (9 - (fb_div % 10)) * 20 + 50);
1073                 if (fb_div < fb_div_min) {
1074                         unsigned tmp = DIV_ROUND_UP(fb_div_min, fb_div);
1075                         fb_div *= tmp;
1076                         ref_div *= tmp;
1077                 }
1078         }
1079
1080         /* and finally save the result */
1081         if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
1082                 *fb_div_p = fb_div / 10;
1083                 *frac_fb_div_p = fb_div % 10;
1084         } else {
1085                 *fb_div_p = fb_div;
1086                 *frac_fb_div_p = 0;
1087         }
1088
1089         *dot_clock_p = ((pll->reference_freq * *fb_div_p * 10) +
1090                         (pll->reference_freq * *frac_fb_div_p)) /
1091                        (ref_div * post_div * 10);
1092         *ref_div_p = ref_div;
1093         *post_div_p = post_div;
1094
1095         DRM_DEBUG_KMS("%d - %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1096                       freq, *dot_clock_p * 10, *fb_div_p, *frac_fb_div_p,
1097                       ref_div, post_div);
1098 }
1099
1100 /* pre-avivo */
1101 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
1102 {
1103         uint64_t mod;
1104
1105         n += d / 2;
1106
1107         mod = do_div(n, d);
1108         return n;
1109 }
1110
1111 void radeon_compute_pll_legacy(struct radeon_pll *pll,
1112                                uint64_t freq,
1113                                uint32_t *dot_clock_p,
1114                                uint32_t *fb_div_p,
1115                                uint32_t *frac_fb_div_p,
1116                                uint32_t *ref_div_p,
1117                                uint32_t *post_div_p)
1118 {
1119         uint32_t min_ref_div = pll->min_ref_div;
1120         uint32_t max_ref_div = pll->max_ref_div;
1121         uint32_t min_post_div = pll->min_post_div;
1122         uint32_t max_post_div = pll->max_post_div;
1123         uint32_t min_fractional_feed_div = 0;
1124         uint32_t max_fractional_feed_div = 0;
1125         uint32_t best_vco = pll->best_vco;
1126         uint32_t best_post_div = 1;
1127         uint32_t best_ref_div = 1;
1128         uint32_t best_feedback_div = 1;
1129         uint32_t best_frac_feedback_div = 0;
1130         uint32_t best_freq = -1;
1131         uint32_t best_error = 0xffffffff;
1132         uint32_t best_vco_diff = 1;
1133         uint32_t post_div;
1134         u32 pll_out_min, pll_out_max;
1135
1136         DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
1137         freq = freq * 1000;
1138
1139         if (pll->flags & RADEON_PLL_IS_LCD) {
1140                 pll_out_min = pll->lcd_pll_out_min;
1141                 pll_out_max = pll->lcd_pll_out_max;
1142         } else {
1143                 pll_out_min = pll->pll_out_min;
1144                 pll_out_max = pll->pll_out_max;
1145         }
1146
1147         if (pll_out_min > 64800)
1148                 pll_out_min = 64800;
1149
1150         if (pll->flags & RADEON_PLL_USE_REF_DIV)
1151                 min_ref_div = max_ref_div = pll->reference_div;
1152         else {
1153                 while (min_ref_div < max_ref_div-1) {
1154                         uint32_t mid = (min_ref_div + max_ref_div) / 2;
1155                         uint32_t pll_in = pll->reference_freq / mid;
1156                         if (pll_in < pll->pll_in_min)
1157                                 max_ref_div = mid;
1158                         else if (pll_in > pll->pll_in_max)
1159                                 min_ref_div = mid;
1160                         else
1161                                 break;
1162                 }
1163         }
1164
1165         if (pll->flags & RADEON_PLL_USE_POST_DIV)
1166                 min_post_div = max_post_div = pll->post_div;
1167
1168         if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
1169                 min_fractional_feed_div = pll->min_frac_feedback_div;
1170                 max_fractional_feed_div = pll->max_frac_feedback_div;
1171         }
1172
1173         for (post_div = max_post_div; post_div >= min_post_div; --post_div) {
1174                 uint32_t ref_div;
1175
1176                 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
1177                         continue;
1178
1179                 /* legacy radeons only have a few post_divs */
1180                 if (pll->flags & RADEON_PLL_LEGACY) {
1181                         if ((post_div == 5) ||
1182                             (post_div == 7) ||
1183                             (post_div == 9) ||
1184                             (post_div == 10) ||
1185                             (post_div == 11) ||
1186                             (post_div == 13) ||
1187                             (post_div == 14) ||
1188                             (post_div == 15))
1189                                 continue;
1190                 }
1191
1192                 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
1193                         uint32_t feedback_div, current_freq = 0, error, vco_diff;
1194                         uint32_t pll_in = pll->reference_freq / ref_div;
1195                         uint32_t min_feed_div = pll->min_feedback_div;
1196                         uint32_t max_feed_div = pll->max_feedback_div + 1;
1197
1198                         if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
1199                                 continue;
1200
1201                         while (min_feed_div < max_feed_div) {
1202                                 uint32_t vco;
1203                                 uint32_t min_frac_feed_div = min_fractional_feed_div;
1204                                 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
1205                                 uint32_t frac_feedback_div;
1206                                 uint64_t tmp;
1207
1208                                 feedback_div = (min_feed_div + max_feed_div) / 2;
1209
1210                                 tmp = (uint64_t)pll->reference_freq * feedback_div;
1211                                 vco = radeon_div(tmp, ref_div);
1212
1213                                 if (vco < pll_out_min) {
1214                                         min_feed_div = feedback_div + 1;
1215                                         continue;
1216                                 } else if (vco > pll_out_max) {
1217                                         max_feed_div = feedback_div;
1218                                         continue;
1219                                 }
1220
1221                                 while (min_frac_feed_div < max_frac_feed_div) {
1222                                         frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
1223                                         tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
1224                                         tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
1225                                         current_freq = radeon_div(tmp, ref_div * post_div);
1226
1227                                         if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
1228                                                 if (freq < current_freq)
1229                                                         error = 0xffffffff;
1230                                                 else
1231                                                         error = freq - current_freq;
1232                                         } else
1233                                                 error = abs(current_freq - freq);
1234                                         vco_diff = abs(vco - best_vco);
1235
1236                                         if ((best_vco == 0 && error < best_error) ||
1237                                             (best_vco != 0 &&
1238                                              ((best_error > 100 && error < best_error - 100) ||
1239                                               (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
1240                                                 best_post_div = post_div;
1241                                                 best_ref_div = ref_div;
1242                                                 best_feedback_div = feedback_div;
1243                                                 best_frac_feedback_div = frac_feedback_div;
1244                                                 best_freq = current_freq;
1245                                                 best_error = error;
1246                                                 best_vco_diff = vco_diff;
1247                                         } else if (current_freq == freq) {
1248                                                 if (best_freq == -1) {
1249                                                         best_post_div = post_div;
1250                                                         best_ref_div = ref_div;
1251                                                         best_feedback_div = feedback_div;
1252                                                         best_frac_feedback_div = frac_feedback_div;
1253                                                         best_freq = current_freq;
1254                                                         best_error = error;
1255                                                         best_vco_diff = vco_diff;
1256                                                 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
1257                                                            ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
1258                                                            ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
1259                                                            ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
1260                                                            ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
1261                                                            ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
1262                                                         best_post_div = post_div;
1263                                                         best_ref_div = ref_div;
1264                                                         best_feedback_div = feedback_div;
1265                                                         best_frac_feedback_div = frac_feedback_div;
1266                                                         best_freq = current_freq;
1267                                                         best_error = error;
1268                                                         best_vco_diff = vco_diff;
1269                                                 }
1270                                         }
1271                                         if (current_freq < freq)
1272                                                 min_frac_feed_div = frac_feedback_div + 1;
1273                                         else
1274                                                 max_frac_feed_div = frac_feedback_div;
1275                                 }
1276                                 if (current_freq < freq)
1277                                         min_feed_div = feedback_div + 1;
1278                                 else
1279                                         max_feed_div = feedback_div;
1280                         }
1281                 }
1282         }
1283
1284         *dot_clock_p = best_freq / 10000;
1285         *fb_div_p = best_feedback_div;
1286         *frac_fb_div_p = best_frac_feedback_div;
1287         *ref_div_p = best_ref_div;
1288         *post_div_p = best_post_div;
1289         DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1290                       (long long)freq,
1291                       best_freq / 1000, best_feedback_div, best_frac_feedback_div,
1292                       best_ref_div, best_post_div);
1293
1294 }
1295
1296 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
1297         .destroy = drm_gem_fb_destroy,
1298         .create_handle = drm_gem_fb_create_handle,
1299 };
1300
1301 int
1302 radeon_framebuffer_init(struct drm_device *dev,
1303                         struct drm_framebuffer *fb,
1304                         const struct drm_mode_fb_cmd2 *mode_cmd,
1305                         struct drm_gem_object *obj)
1306 {
1307         int ret;
1308         fb->obj[0] = obj;
1309         drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
1310         ret = drm_framebuffer_init(dev, fb, &radeon_fb_funcs);
1311         if (ret) {
1312                 fb->obj[0] = NULL;
1313                 return ret;
1314         }
1315         return 0;
1316 }
1317
1318 static struct drm_framebuffer *
1319 radeon_user_framebuffer_create(struct drm_device *dev,
1320                                struct drm_file *file_priv,
1321                                const struct drm_mode_fb_cmd2 *mode_cmd)
1322 {
1323         struct drm_gem_object *obj;
1324         struct drm_framebuffer *fb;
1325         int ret;
1326
1327         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1328         if (obj ==  NULL) {
1329                 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
1330                         "can't create framebuffer\n", mode_cmd->handles[0]);
1331                 return ERR_PTR(-ENOENT);
1332         }
1333
1334         /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
1335         if (obj->import_attach) {
1336                 DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n");
1337                 return ERR_PTR(-EINVAL);
1338         }
1339
1340         fb = kzalloc(sizeof(*fb), GFP_KERNEL);
1341         if (fb == NULL) {
1342                 drm_gem_object_put(obj);
1343                 return ERR_PTR(-ENOMEM);
1344         }
1345
1346         ret = radeon_framebuffer_init(dev, fb, mode_cmd, obj);
1347         if (ret) {
1348                 kfree(fb);
1349                 drm_gem_object_put(obj);
1350                 return ERR_PTR(ret);
1351         }
1352
1353         return fb;
1354 }
1355
1356 static const struct drm_mode_config_funcs radeon_mode_funcs = {
1357         .fb_create = radeon_user_framebuffer_create,
1358         .output_poll_changed = drm_fb_helper_output_poll_changed,
1359 };
1360
1361 static const struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
1362 {       { 0, "driver" },
1363         { 1, "bios" },
1364 };
1365
1366 static const struct drm_prop_enum_list radeon_tv_std_enum_list[] =
1367 {       { TV_STD_NTSC, "ntsc" },
1368         { TV_STD_PAL, "pal" },
1369         { TV_STD_PAL_M, "pal-m" },
1370         { TV_STD_PAL_60, "pal-60" },
1371         { TV_STD_NTSC_J, "ntsc-j" },
1372         { TV_STD_SCART_PAL, "scart-pal" },
1373         { TV_STD_PAL_CN, "pal-cn" },
1374         { TV_STD_SECAM, "secam" },
1375 };
1376
1377 static const struct drm_prop_enum_list radeon_underscan_enum_list[] =
1378 {       { UNDERSCAN_OFF, "off" },
1379         { UNDERSCAN_ON, "on" },
1380         { UNDERSCAN_AUTO, "auto" },
1381 };
1382
1383 static const struct drm_prop_enum_list radeon_audio_enum_list[] =
1384 {       { RADEON_AUDIO_DISABLE, "off" },
1385         { RADEON_AUDIO_ENABLE, "on" },
1386         { RADEON_AUDIO_AUTO, "auto" },
1387 };
1388
1389 /* XXX support different dither options? spatial, temporal, both, etc. */
1390 static const struct drm_prop_enum_list radeon_dither_enum_list[] =
1391 {       { RADEON_FMT_DITHER_DISABLE, "off" },
1392         { RADEON_FMT_DITHER_ENABLE, "on" },
1393 };
1394
1395 static const struct drm_prop_enum_list radeon_output_csc_enum_list[] =
1396 {       { RADEON_OUTPUT_CSC_BYPASS, "bypass" },
1397         { RADEON_OUTPUT_CSC_TVRGB, "tvrgb" },
1398         { RADEON_OUTPUT_CSC_YCBCR601, "ycbcr601" },
1399         { RADEON_OUTPUT_CSC_YCBCR709, "ycbcr709" },
1400 };
1401
1402 static int radeon_modeset_create_props(struct radeon_device *rdev)
1403 {
1404         int sz;
1405
1406         if (rdev->is_atom_bios) {
1407                 rdev->mode_info.coherent_mode_property =
1408                         drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1);
1409                 if (!rdev->mode_info.coherent_mode_property)
1410                         return -ENOMEM;
1411         }
1412
1413         if (!ASIC_IS_AVIVO(rdev)) {
1414                 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
1415                 rdev->mode_info.tmds_pll_property =
1416                         drm_property_create_enum(rdev->ddev, 0,
1417                                             "tmds_pll",
1418                                             radeon_tmds_pll_enum_list, sz);
1419         }
1420
1421         rdev->mode_info.load_detect_property =
1422                 drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1);
1423         if (!rdev->mode_info.load_detect_property)
1424                 return -ENOMEM;
1425
1426         drm_mode_create_scaling_mode_property(rdev->ddev);
1427
1428         sz = ARRAY_SIZE(radeon_tv_std_enum_list);
1429         rdev->mode_info.tv_std_property =
1430                 drm_property_create_enum(rdev->ddev, 0,
1431                                     "tv standard",
1432                                     radeon_tv_std_enum_list, sz);
1433
1434         sz = ARRAY_SIZE(radeon_underscan_enum_list);
1435         rdev->mode_info.underscan_property =
1436                 drm_property_create_enum(rdev->ddev, 0,
1437                                     "underscan",
1438                                     radeon_underscan_enum_list, sz);
1439
1440         rdev->mode_info.underscan_hborder_property =
1441                 drm_property_create_range(rdev->ddev, 0,
1442                                         "underscan hborder", 0, 128);
1443         if (!rdev->mode_info.underscan_hborder_property)
1444                 return -ENOMEM;
1445
1446         rdev->mode_info.underscan_vborder_property =
1447                 drm_property_create_range(rdev->ddev, 0,
1448                                         "underscan vborder", 0, 128);
1449         if (!rdev->mode_info.underscan_vborder_property)
1450                 return -ENOMEM;
1451
1452         sz = ARRAY_SIZE(radeon_audio_enum_list);
1453         rdev->mode_info.audio_property =
1454                 drm_property_create_enum(rdev->ddev, 0,
1455                                          "audio",
1456                                          radeon_audio_enum_list, sz);
1457
1458         sz = ARRAY_SIZE(radeon_dither_enum_list);
1459         rdev->mode_info.dither_property =
1460                 drm_property_create_enum(rdev->ddev, 0,
1461                                          "dither",
1462                                          radeon_dither_enum_list, sz);
1463
1464         sz = ARRAY_SIZE(radeon_output_csc_enum_list);
1465         rdev->mode_info.output_csc_property =
1466                 drm_property_create_enum(rdev->ddev, 0,
1467                                          "output_csc",
1468                                          radeon_output_csc_enum_list, sz);
1469
1470         return 0;
1471 }
1472
1473 void radeon_update_display_priority(struct radeon_device *rdev)
1474 {
1475         /* adjustment options for the display watermarks */
1476         if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
1477                 /* set display priority to high for r3xx, rv515 chips
1478                  * this avoids flickering due to underflow to the
1479                  * display controllers during heavy acceleration.
1480                  * Don't force high on rs4xx igp chips as it seems to
1481                  * affect the sound card.  See kernel bug 15982.
1482                  */
1483                 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&
1484                     !(rdev->flags & RADEON_IS_IGP))
1485                         rdev->disp_priority = 2;
1486                 else
1487                         rdev->disp_priority = 0;
1488         } else
1489                 rdev->disp_priority = radeon_disp_priority;
1490
1491 }
1492
1493 /*
1494  * Allocate hdmi structs and determine register offsets
1495  */
1496 static void radeon_afmt_init(struct radeon_device *rdev)
1497 {
1498         int i;
1499
1500         for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++)
1501                 rdev->mode_info.afmt[i] = NULL;
1502
1503         if (ASIC_IS_NODCE(rdev)) {
1504                 /* nothing to do */
1505         } else if (ASIC_IS_DCE4(rdev)) {
1506                 static uint32_t eg_offsets[] = {
1507                         EVERGREEN_CRTC0_REGISTER_OFFSET,
1508                         EVERGREEN_CRTC1_REGISTER_OFFSET,
1509                         EVERGREEN_CRTC2_REGISTER_OFFSET,
1510                         EVERGREEN_CRTC3_REGISTER_OFFSET,
1511                         EVERGREEN_CRTC4_REGISTER_OFFSET,
1512                         EVERGREEN_CRTC5_REGISTER_OFFSET,
1513                         0x13830 - 0x7030,
1514                 };
1515                 int num_afmt;
1516
1517                 /* DCE8 has 7 audio blocks tied to DIG encoders */
1518                 /* DCE6 has 6 audio blocks tied to DIG encoders */
1519                 /* DCE4/5 has 6 audio blocks tied to DIG encoders */
1520                 /* DCE4.1 has 2 audio blocks tied to DIG encoders */
1521                 if (ASIC_IS_DCE8(rdev))
1522                         num_afmt = 7;
1523                 else if (ASIC_IS_DCE6(rdev))
1524                         num_afmt = 6;
1525                 else if (ASIC_IS_DCE5(rdev))
1526                         num_afmt = 6;
1527                 else if (ASIC_IS_DCE41(rdev))
1528                         num_afmt = 2;
1529                 else /* DCE4 */
1530                         num_afmt = 6;
1531
1532                 BUG_ON(num_afmt > ARRAY_SIZE(eg_offsets));
1533                 for (i = 0; i < num_afmt; i++) {
1534                         rdev->mode_info.afmt[i] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1535                         if (rdev->mode_info.afmt[i]) {
1536                                 rdev->mode_info.afmt[i]->offset = eg_offsets[i];
1537                                 rdev->mode_info.afmt[i]->id = i;
1538                         }
1539                 }
1540         } else if (ASIC_IS_DCE3(rdev)) {
1541                 /* DCE3.x has 2 audio blocks tied to DIG encoders */
1542                 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1543                 if (rdev->mode_info.afmt[0]) {
1544                         rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0;
1545                         rdev->mode_info.afmt[0]->id = 0;
1546                 }
1547                 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1548                 if (rdev->mode_info.afmt[1]) {
1549                         rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1;
1550                         rdev->mode_info.afmt[1]->id = 1;
1551                 }
1552         } else if (ASIC_IS_DCE2(rdev)) {
1553                 /* DCE2 has at least 1 routable audio block */
1554                 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1555                 if (rdev->mode_info.afmt[0]) {
1556                         rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0;
1557                         rdev->mode_info.afmt[0]->id = 0;
1558                 }
1559                 /* r6xx has 2 routable audio blocks */
1560                 if (rdev->family >= CHIP_R600) {
1561                         rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1562                         if (rdev->mode_info.afmt[1]) {
1563                                 rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1;
1564                                 rdev->mode_info.afmt[1]->id = 1;
1565                         }
1566                 }
1567         }
1568 }
1569
1570 static void radeon_afmt_fini(struct radeon_device *rdev)
1571 {
1572         int i;
1573
1574         for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) {
1575                 kfree(rdev->mode_info.afmt[i]);
1576                 rdev->mode_info.afmt[i] = NULL;
1577         }
1578 }
1579
1580 int radeon_modeset_init(struct radeon_device *rdev)
1581 {
1582         int i;
1583         int ret;
1584
1585         drm_mode_config_init(rdev->ddev);
1586         rdev->mode_info.mode_config_initialized = true;
1587
1588         rdev->ddev->mode_config.funcs = &radeon_mode_funcs;
1589
1590         if (radeon_use_pflipirq == 2 && rdev->family >= CHIP_R600)
1591                 rdev->ddev->mode_config.async_page_flip = true;
1592
1593         if (ASIC_IS_DCE5(rdev)) {
1594                 rdev->ddev->mode_config.max_width = 16384;
1595                 rdev->ddev->mode_config.max_height = 16384;
1596         } else if (ASIC_IS_AVIVO(rdev)) {
1597                 rdev->ddev->mode_config.max_width = 8192;
1598                 rdev->ddev->mode_config.max_height = 8192;
1599         } else {
1600                 rdev->ddev->mode_config.max_width = 4096;
1601                 rdev->ddev->mode_config.max_height = 4096;
1602         }
1603
1604         rdev->ddev->mode_config.preferred_depth = 24;
1605         rdev->ddev->mode_config.prefer_shadow = 1;
1606
1607         rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
1608
1609         ret = radeon_modeset_create_props(rdev);
1610         if (ret) {
1611                 return ret;
1612         }
1613
1614         /* init i2c buses */
1615         radeon_i2c_init(rdev);
1616
1617         /* check combios for a valid hardcoded EDID - Sun servers */
1618         if (!rdev->is_atom_bios) {
1619                 /* check for hardcoded EDID in BIOS */
1620                 radeon_combios_check_hardcoded_edid(rdev);
1621         }
1622
1623         /* allocate crtcs */
1624         for (i = 0; i < rdev->num_crtc; i++) {
1625                 radeon_crtc_init(rdev->ddev, i);
1626         }
1627
1628         /* okay we should have all the bios connectors */
1629         ret = radeon_setup_enc_conn(rdev->ddev);
1630         if (!ret) {
1631                 return ret;
1632         }
1633
1634         /* init dig PHYs, disp eng pll */
1635         if (rdev->is_atom_bios) {
1636                 radeon_atom_encoder_init(rdev);
1637                 radeon_atom_disp_eng_pll_init(rdev);
1638         }
1639
1640         /* initialize hpd */
1641         radeon_hpd_init(rdev);
1642
1643         /* setup afmt */
1644         radeon_afmt_init(rdev);
1645
1646         radeon_fbdev_init(rdev);
1647         drm_kms_helper_poll_init(rdev->ddev);
1648
1649         /* do pm late init */
1650         ret = radeon_pm_late_init(rdev);
1651
1652         return 0;
1653 }
1654
1655 void radeon_modeset_fini(struct radeon_device *rdev)
1656 {
1657         if (rdev->mode_info.mode_config_initialized) {
1658                 drm_kms_helper_poll_fini(rdev->ddev);
1659                 radeon_hpd_fini(rdev);
1660                 drm_helper_force_disable_all(rdev->ddev);
1661                 radeon_fbdev_fini(rdev);
1662                 radeon_afmt_fini(rdev);
1663                 drm_mode_config_cleanup(rdev->ddev);
1664                 rdev->mode_info.mode_config_initialized = false;
1665         }
1666
1667         kfree(rdev->mode_info.bios_hardcoded_edid);
1668
1669         /* free i2c buses */
1670         radeon_i2c_fini(rdev);
1671 }
1672
1673 static bool is_hdtv_mode(const struct drm_display_mode *mode)
1674 {
1675         /* try and guess if this is a tv or a monitor */
1676         if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */
1677             (mode->vdisplay == 576) || /* 576p */
1678             (mode->vdisplay == 720) || /* 720p */
1679             (mode->vdisplay == 1080)) /* 1080p */
1680                 return true;
1681         else
1682                 return false;
1683 }
1684
1685 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
1686                                 const struct drm_display_mode *mode,
1687                                 struct drm_display_mode *adjusted_mode)
1688 {
1689         struct drm_device *dev = crtc->dev;
1690         struct radeon_device *rdev = dev->dev_private;
1691         struct drm_encoder *encoder;
1692         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1693         struct radeon_encoder *radeon_encoder;
1694         struct drm_connector *connector;
1695         bool first = true;
1696         u32 src_v = 1, dst_v = 1;
1697         u32 src_h = 1, dst_h = 1;
1698
1699         radeon_crtc->h_border = 0;
1700         radeon_crtc->v_border = 0;
1701
1702         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1703                 if (encoder->crtc != crtc)
1704                         continue;
1705                 radeon_encoder = to_radeon_encoder(encoder);
1706                 connector = radeon_get_connector_for_encoder(encoder);
1707
1708                 if (first) {
1709                         /* set scaling */
1710                         if (radeon_encoder->rmx_type == RMX_OFF)
1711                                 radeon_crtc->rmx_type = RMX_OFF;
1712                         else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
1713                                  mode->vdisplay < radeon_encoder->native_mode.vdisplay)
1714                                 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
1715                         else
1716                                 radeon_crtc->rmx_type = RMX_OFF;
1717                         /* copy native mode */
1718                         memcpy(&radeon_crtc->native_mode,
1719                                &radeon_encoder->native_mode,
1720                                 sizeof(struct drm_display_mode));
1721                         src_v = crtc->mode.vdisplay;
1722                         dst_v = radeon_crtc->native_mode.vdisplay;
1723                         src_h = crtc->mode.hdisplay;
1724                         dst_h = radeon_crtc->native_mode.hdisplay;
1725
1726                         /* fix up for overscan on hdmi */
1727                         if (ASIC_IS_AVIVO(rdev) &&
1728                             (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
1729                             ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
1730                              ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
1731                               drm_detect_hdmi_monitor(radeon_connector_edid(connector)) &&
1732                               is_hdtv_mode(mode)))) {
1733                                 if (radeon_encoder->underscan_hborder != 0)
1734                                         radeon_crtc->h_border = radeon_encoder->underscan_hborder;
1735                                 else
1736                                         radeon_crtc->h_border = (mode->hdisplay >> 5) + 16;
1737                                 if (radeon_encoder->underscan_vborder != 0)
1738                                         radeon_crtc->v_border = radeon_encoder->underscan_vborder;
1739                                 else
1740                                         radeon_crtc->v_border = (mode->vdisplay >> 5) + 16;
1741                                 radeon_crtc->rmx_type = RMX_FULL;
1742                                 src_v = crtc->mode.vdisplay;
1743                                 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2);
1744                                 src_h = crtc->mode.hdisplay;
1745                                 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2);
1746                         }
1747                         first = false;
1748                 } else {
1749                         if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
1750                                 /* WARNING: Right now this can't happen but
1751                                  * in the future we need to check that scaling
1752                                  * are consistent across different encoder
1753                                  * (ie all encoder can work with the same
1754                                  *  scaling).
1755                                  */
1756                                 DRM_ERROR("Scaling not consistent across encoder.\n");
1757                                 return false;
1758                         }
1759                 }
1760         }
1761         if (radeon_crtc->rmx_type != RMX_OFF) {
1762                 fixed20_12 a, b;
1763                 a.full = dfixed_const(src_v);
1764                 b.full = dfixed_const(dst_v);
1765                 radeon_crtc->vsc.full = dfixed_div(a, b);
1766                 a.full = dfixed_const(src_h);
1767                 b.full = dfixed_const(dst_h);
1768                 radeon_crtc->hsc.full = dfixed_div(a, b);
1769         } else {
1770                 radeon_crtc->vsc.full = dfixed_const(1);
1771                 radeon_crtc->hsc.full = dfixed_const(1);
1772         }
1773         return true;
1774 }
1775
1776 /*
1777  * Retrieve current video scanout position of crtc on a given gpu, and
1778  * an optional accurate timestamp of when query happened.
1779  *
1780  * \param dev Device to query.
1781  * \param crtc Crtc to query.
1782  * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
1783  *              For driver internal use only also supports these flags:
1784  *
1785  *              USE_REAL_VBLANKSTART to use the real start of vblank instead
1786  *              of a fudged earlier start of vblank.
1787  *
1788  *              GET_DISTANCE_TO_VBLANKSTART to return distance to the
1789  *              fudged earlier start of vblank in *vpos and the distance
1790  *              to true start of vblank in *hpos.
1791  *
1792  * \param *vpos Location where vertical scanout position should be stored.
1793  * \param *hpos Location where horizontal scanout position should go.
1794  * \param *stime Target location for timestamp taken immediately before
1795  *               scanout position query. Can be NULL to skip timestamp.
1796  * \param *etime Target location for timestamp taken immediately after
1797  *               scanout position query. Can be NULL to skip timestamp.
1798  *
1799  * Returns vpos as a positive number while in active scanout area.
1800  * Returns vpos as a negative number inside vblank, counting the number
1801  * of scanlines to go until end of vblank, e.g., -1 means "one scanline
1802  * until start of active scanout / end of vblank."
1803  *
1804  * \return Flags, or'ed together as follows:
1805  *
1806  * DRM_SCANOUTPOS_VALID = Query successful.
1807  * DRM_SCANOUTPOS_INVBL = Inside vblank.
1808  * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
1809  * this flag means that returned position may be offset by a constant but
1810  * unknown small number of scanlines wrt. real scanout position.
1811  *
1812  */
1813 int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
1814                                unsigned int flags, int *vpos, int *hpos,
1815                                ktime_t *stime, ktime_t *etime,
1816                                const struct drm_display_mode *mode)
1817 {
1818         u32 stat_crtc = 0, vbl = 0, position = 0;
1819         int vbl_start, vbl_end, vtotal, ret = 0;
1820         bool in_vbl = true;
1821
1822         struct radeon_device *rdev = dev->dev_private;
1823
1824         /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */
1825
1826         /* Get optional system timestamp before query. */
1827         if (stime)
1828                 *stime = ktime_get();
1829
1830         if (ASIC_IS_DCE4(rdev)) {
1831                 if (pipe == 0) {
1832                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1833                                      EVERGREEN_CRTC0_REGISTER_OFFSET);
1834                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1835                                           EVERGREEN_CRTC0_REGISTER_OFFSET);
1836                         ret |= DRM_SCANOUTPOS_VALID;
1837                 }
1838                 if (pipe == 1) {
1839                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1840                                      EVERGREEN_CRTC1_REGISTER_OFFSET);
1841                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1842                                           EVERGREEN_CRTC1_REGISTER_OFFSET);
1843                         ret |= DRM_SCANOUTPOS_VALID;
1844                 }
1845                 if (pipe == 2) {
1846                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1847                                      EVERGREEN_CRTC2_REGISTER_OFFSET);
1848                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1849                                           EVERGREEN_CRTC2_REGISTER_OFFSET);
1850                         ret |= DRM_SCANOUTPOS_VALID;
1851                 }
1852                 if (pipe == 3) {
1853                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1854                                      EVERGREEN_CRTC3_REGISTER_OFFSET);
1855                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1856                                           EVERGREEN_CRTC3_REGISTER_OFFSET);
1857                         ret |= DRM_SCANOUTPOS_VALID;
1858                 }
1859                 if (pipe == 4) {
1860                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1861                                      EVERGREEN_CRTC4_REGISTER_OFFSET);
1862                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1863                                           EVERGREEN_CRTC4_REGISTER_OFFSET);
1864                         ret |= DRM_SCANOUTPOS_VALID;
1865                 }
1866                 if (pipe == 5) {
1867                         vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1868                                      EVERGREEN_CRTC5_REGISTER_OFFSET);
1869                         position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1870                                           EVERGREEN_CRTC5_REGISTER_OFFSET);
1871                         ret |= DRM_SCANOUTPOS_VALID;
1872                 }
1873         } else if (ASIC_IS_AVIVO(rdev)) {
1874                 if (pipe == 0) {
1875                         vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END);
1876                         position = RREG32(AVIVO_D1CRTC_STATUS_POSITION);
1877                         ret |= DRM_SCANOUTPOS_VALID;
1878                 }
1879                 if (pipe == 1) {
1880                         vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END);
1881                         position = RREG32(AVIVO_D2CRTC_STATUS_POSITION);
1882                         ret |= DRM_SCANOUTPOS_VALID;
1883                 }
1884         } else {
1885                 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */
1886                 if (pipe == 0) {
1887                         /* Assume vbl_end == 0, get vbl_start from
1888                          * upper 16 bits.
1889                          */
1890                         vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) &
1891                                 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1892                         /* Only retrieve vpos from upper 16 bits, set hpos == 0. */
1893                         position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1894                         stat_crtc = RREG32(RADEON_CRTC_STATUS);
1895                         if (!(stat_crtc & 1))
1896                                 in_vbl = false;
1897
1898                         ret |= DRM_SCANOUTPOS_VALID;
1899                 }
1900                 if (pipe == 1) {
1901                         vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) &
1902                                 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1903                         position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1904                         stat_crtc = RREG32(RADEON_CRTC2_STATUS);
1905                         if (!(stat_crtc & 1))
1906                                 in_vbl = false;
1907
1908                         ret |= DRM_SCANOUTPOS_VALID;
1909                 }
1910         }
1911
1912         /* Get optional system timestamp after query. */
1913         if (etime)
1914                 *etime = ktime_get();
1915
1916         /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */
1917
1918         /* Decode into vertical and horizontal scanout position. */
1919         *vpos = position & 0x1fff;
1920         *hpos = (position >> 16) & 0x1fff;
1921
1922         /* Valid vblank area boundaries from gpu retrieved? */
1923         if (vbl > 0) {
1924                 /* Yes: Decode. */
1925                 ret |= DRM_SCANOUTPOS_ACCURATE;
1926                 vbl_start = vbl & 0x1fff;
1927                 vbl_end = (vbl >> 16) & 0x1fff;
1928         }
1929         else {
1930                 /* No: Fake something reasonable which gives at least ok results. */
1931                 vbl_start = mode->crtc_vdisplay;
1932                 vbl_end = 0;
1933         }
1934
1935         /* Called from driver internal vblank counter query code? */
1936         if (flags & GET_DISTANCE_TO_VBLANKSTART) {
1937             /* Caller wants distance from real vbl_start in *hpos */
1938             *hpos = *vpos - vbl_start;
1939         }
1940
1941         /* Fudge vblank to start a few scanlines earlier to handle the
1942          * problem that vblank irqs fire a few scanlines before start
1943          * of vblank. Some driver internal callers need the true vblank
1944          * start to be used and signal this via the USE_REAL_VBLANKSTART flag.
1945          *
1946          * The cause of the "early" vblank irq is that the irq is triggered
1947          * by the line buffer logic when the line buffer read position enters
1948          * the vblank, whereas our crtc scanout position naturally lags the
1949          * line buffer read position.
1950          */
1951         if (!(flags & USE_REAL_VBLANKSTART))
1952                 vbl_start -= rdev->mode_info.crtcs[pipe]->lb_vblank_lead_lines;
1953
1954         /* Test scanout position against vblank region. */
1955         if ((*vpos < vbl_start) && (*vpos >= vbl_end))
1956                 in_vbl = false;
1957
1958         /* In vblank? */
1959         if (in_vbl)
1960             ret |= DRM_SCANOUTPOS_IN_VBLANK;
1961
1962         /* Called from driver internal vblank counter query code? */
1963         if (flags & GET_DISTANCE_TO_VBLANKSTART) {
1964                 /* Caller wants distance from fudged earlier vbl_start */
1965                 *vpos -= vbl_start;
1966                 return ret;
1967         }
1968
1969         /* Check if inside vblank area and apply corrective offsets:
1970          * vpos will then be >=0 in video scanout area, but negative
1971          * within vblank area, counting down the number of lines until
1972          * start of scanout.
1973          */
1974
1975         /* Inside "upper part" of vblank area? Apply corrective offset if so: */
1976         if (in_vbl && (*vpos >= vbl_start)) {
1977                 vtotal = mode->crtc_vtotal;
1978                 *vpos = *vpos - vtotal;
1979         }
1980
1981         /* Correct for shifted end of vbl at vbl_end. */
1982         *vpos = *vpos - vbl_end;
1983
1984         return ret;
1985 }
1986
1987 bool
1988 radeon_get_crtc_scanout_position(struct drm_crtc *crtc,
1989                                  bool in_vblank_irq, int *vpos, int *hpos,
1990                                  ktime_t *stime, ktime_t *etime,
1991                                  const struct drm_display_mode *mode)
1992 {
1993         struct drm_device *dev = crtc->dev;
1994         unsigned int pipe = crtc->index;
1995
1996         return radeon_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos,
1997                                           stime, etime, mode);
1998 }