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 #include <drm/drmP.h> 27 #include <drm/radeon_drm.h> 28 #include "radeon.h" 29 30 #include "atom.h" 31 #include <asm/div64.h> 32 33 #include <drm/drm_crtc_helper.h> 34 #include <drm/drm_edid.h> 35 36 static void avivo_crtc_load_lut(struct drm_crtc *crtc) 37 { 38 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 39 struct drm_device *dev = crtc->dev; 40 struct radeon_device *rdev = dev->dev_private; 41 int i; 42 43 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 44 WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0); 45 46 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 47 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 48 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 49 50 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 51 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 52 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 53 54 WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id); 55 WREG32(AVIVO_DC_LUT_RW_MODE, 0); 56 WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f); 57 58 WREG8(AVIVO_DC_LUT_RW_INDEX, 0); 59 for (i = 0; i < 256; i++) { 60 WREG32(AVIVO_DC_LUT_30_COLOR, 61 (radeon_crtc->lut_r[i] << 20) | 62 (radeon_crtc->lut_g[i] << 10) | 63 (radeon_crtc->lut_b[i] << 0)); 64 } 65 66 WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id); 67 } 68 69 static void dce4_crtc_load_lut(struct drm_crtc *crtc) 70 { 71 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 72 struct drm_device *dev = crtc->dev; 73 struct radeon_device *rdev = dev->dev_private; 74 int i; 75 76 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 77 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0); 78 79 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 80 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 81 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 82 83 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 84 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 85 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 86 87 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0); 88 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007); 89 90 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0); 91 for (i = 0; i < 256; i++) { 92 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset, 93 (radeon_crtc->lut_r[i] << 20) | 94 (radeon_crtc->lut_g[i] << 10) | 95 (radeon_crtc->lut_b[i] << 0)); 96 } 97 } 98 99 static void dce5_crtc_load_lut(struct drm_crtc *crtc) 100 { 101 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 102 struct drm_device *dev = crtc->dev; 103 struct radeon_device *rdev = dev->dev_private; 104 int i; 105 106 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 107 108 WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset, 109 (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) | 110 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS))); 111 WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset, 112 NI_GRPH_PRESCALE_BYPASS); 113 WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset, 114 NI_OVL_PRESCALE_BYPASS); 115 WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset, 116 (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) | 117 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT))); 118 119 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0); 120 121 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 122 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 123 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 124 125 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 126 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 127 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 128 129 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0); 130 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007); 131 132 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0); 133 for (i = 0; i < 256; i++) { 134 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset, 135 (radeon_crtc->lut_r[i] << 20) | 136 (radeon_crtc->lut_g[i] << 10) | 137 (radeon_crtc->lut_b[i] << 0)); 138 } 139 140 WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset, 141 (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 142 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 143 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 144 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS))); 145 WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset, 146 (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) | 147 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS))); 148 WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset, 149 (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) | 150 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS))); 151 WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset, 152 (NI_OUTPUT_CSC_GRPH_MODE(NI_OUTPUT_CSC_BYPASS) | 153 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS))); 154 /* XXX match this to the depth of the crtc fmt block, move to modeset? */ 155 WREG32(0x6940 + radeon_crtc->crtc_offset, 0); 156 157 } 158 159 static void legacy_crtc_load_lut(struct drm_crtc *crtc) 160 { 161 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 162 struct drm_device *dev = crtc->dev; 163 struct radeon_device *rdev = dev->dev_private; 164 int i; 165 uint32_t dac2_cntl; 166 167 dac2_cntl = RREG32(RADEON_DAC_CNTL2); 168 if (radeon_crtc->crtc_id == 0) 169 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL; 170 else 171 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL; 172 WREG32(RADEON_DAC_CNTL2, dac2_cntl); 173 174 WREG8(RADEON_PALETTE_INDEX, 0); 175 for (i = 0; i < 256; i++) { 176 WREG32(RADEON_PALETTE_30_DATA, 177 (radeon_crtc->lut_r[i] << 20) | 178 (radeon_crtc->lut_g[i] << 10) | 179 (radeon_crtc->lut_b[i] << 0)); 180 } 181 } 182 183 void radeon_crtc_load_lut(struct drm_crtc *crtc) 184 { 185 struct drm_device *dev = crtc->dev; 186 struct radeon_device *rdev = dev->dev_private; 187 188 if (!crtc->enabled) 189 return; 190 191 if (ASIC_IS_DCE5(rdev)) 192 dce5_crtc_load_lut(crtc); 193 else if (ASIC_IS_DCE4(rdev)) 194 dce4_crtc_load_lut(crtc); 195 else if (ASIC_IS_AVIVO(rdev)) 196 avivo_crtc_load_lut(crtc); 197 else 198 legacy_crtc_load_lut(crtc); 199 } 200 201 /** Sets the color ramps on behalf of fbcon */ 202 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, 203 u16 blue, int regno) 204 { 205 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 206 207 radeon_crtc->lut_r[regno] = red >> 6; 208 radeon_crtc->lut_g[regno] = green >> 6; 209 radeon_crtc->lut_b[regno] = blue >> 6; 210 } 211 212 /** Gets the color ramps on behalf of fbcon */ 213 void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, 214 u16 *blue, int regno) 215 { 216 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 217 218 *red = radeon_crtc->lut_r[regno] << 6; 219 *green = radeon_crtc->lut_g[regno] << 6; 220 *blue = radeon_crtc->lut_b[regno] << 6; 221 } 222 223 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, 224 u16 *blue, uint32_t start, uint32_t size) 225 { 226 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 227 int end = (start + size > 256) ? 256 : start + size, i; 228 229 /* userspace palettes are always correct as is */ 230 for (i = start; i < end; i++) { 231 radeon_crtc->lut_r[i] = red[i] >> 6; 232 radeon_crtc->lut_g[i] = green[i] >> 6; 233 radeon_crtc->lut_b[i] = blue[i] >> 6; 234 } 235 radeon_crtc_load_lut(crtc); 236 } 237 238 static void radeon_crtc_destroy(struct drm_crtc *crtc) 239 { 240 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 241 242 drm_crtc_cleanup(crtc); 243 kfree(radeon_crtc); 244 } 245 246 /* 247 * Handle unpin events outside the interrupt handler proper. 248 */ 249 static void radeon_unpin_work_func(struct work_struct *__work) 250 { 251 struct radeon_unpin_work *work = 252 container_of(__work, struct radeon_unpin_work, work); 253 int r; 254 255 /* unpin of the old buffer */ 256 r = radeon_bo_reserve(work->old_rbo, false); 257 if (likely(r == 0)) { 258 r = radeon_bo_unpin(work->old_rbo); 259 if (unlikely(r != 0)) { 260 DRM_ERROR("failed to unpin buffer after flip\n"); 261 } 262 radeon_bo_unreserve(work->old_rbo); 263 } else 264 DRM_ERROR("failed to reserve buffer after flip\n"); 265 266 drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); 267 kfree(work); 268 } 269 270 void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) 271 { 272 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; 273 struct radeon_unpin_work *work; 274 struct drm_pending_vblank_event *e; 275 struct timeval now; 276 unsigned long flags; 277 u32 update_pending; 278 int vpos, hpos; 279 280 spin_lock_irqsave(&rdev->ddev->event_lock, flags); 281 work = radeon_crtc->unpin_work; 282 if (work == NULL || 283 (work->fence && !radeon_fence_signaled(work->fence))) { 284 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 285 return; 286 } 287 /* New pageflip, or just completion of a previous one? */ 288 if (!radeon_crtc->deferred_flip_completion) { 289 /* do the flip (mmio) */ 290 update_pending = radeon_page_flip(rdev, crtc_id, work->new_crtc_base); 291 } else { 292 /* This is just a completion of a flip queued in crtc 293 * at last invocation. Make sure we go directly to 294 * completion routine. 295 */ 296 update_pending = 0; 297 radeon_crtc->deferred_flip_completion = 0; 298 } 299 300 /* Has the pageflip already completed in crtc, or is it certain 301 * to complete in this vblank? 302 */ 303 if (update_pending && 304 (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id, 305 &vpos, &hpos)) && 306 ((vpos >= (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100) || 307 (vpos < 0 && !ASIC_IS_AVIVO(rdev)))) { 308 /* crtc didn't flip in this target vblank interval, 309 * but flip is pending in crtc. Based on the current 310 * scanout position we know that the current frame is 311 * (nearly) complete and the flip will (likely) 312 * complete before the start of the next frame. 313 */ 314 update_pending = 0; 315 } 316 if (update_pending) { 317 /* crtc didn't flip in this target vblank interval, 318 * but flip is pending in crtc. It will complete it 319 * in next vblank interval, so complete the flip at 320 * next vblank irq. 321 */ 322 radeon_crtc->deferred_flip_completion = 1; 323 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 324 return; 325 } 326 327 /* Pageflip (will be) certainly completed in this vblank. Clean up. */ 328 radeon_crtc->unpin_work = NULL; 329 330 /* wakeup userspace */ 331 if (work->event) { 332 e = work->event; 333 e->event.sequence = drm_vblank_count_and_time(rdev->ddev, crtc_id, &now); 334 e->event.tv_sec = now.tv_sec; 335 e->event.tv_usec = now.tv_usec; 336 list_add_tail(&e->base.link, &e->base.file_priv->event_list); 337 wake_up_interruptible(&e->base.file_priv->event_wait); 338 } 339 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 340 341 drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id); 342 radeon_fence_unref(&work->fence); 343 radeon_post_page_flip(work->rdev, work->crtc_id); 344 schedule_work(&work->work); 345 } 346 347 static int radeon_crtc_page_flip(struct drm_crtc *crtc, 348 struct drm_framebuffer *fb, 349 struct drm_pending_vblank_event *event) 350 { 351 struct drm_device *dev = crtc->dev; 352 struct radeon_device *rdev = dev->dev_private; 353 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 354 struct radeon_framebuffer *old_radeon_fb; 355 struct radeon_framebuffer *new_radeon_fb; 356 struct drm_gem_object *obj; 357 struct radeon_bo *rbo; 358 struct radeon_unpin_work *work; 359 unsigned long flags; 360 u32 tiling_flags, pitch_pixels; 361 u64 base; 362 int r; 363 364 work = kzalloc(sizeof *work, GFP_KERNEL); 365 if (work == NULL) 366 return -ENOMEM; 367 368 work->event = event; 369 work->rdev = rdev; 370 work->crtc_id = radeon_crtc->crtc_id; 371 old_radeon_fb = to_radeon_framebuffer(crtc->fb); 372 new_radeon_fb = to_radeon_framebuffer(fb); 373 /* schedule unpin of the old buffer */ 374 obj = old_radeon_fb->obj; 375 /* take a reference to the old object */ 376 drm_gem_object_reference(obj); 377 rbo = gem_to_radeon_bo(obj); 378 work->old_rbo = rbo; 379 obj = new_radeon_fb->obj; 380 rbo = gem_to_radeon_bo(obj); 381 382 spin_lock(&rbo->tbo.bdev->fence_lock); 383 if (rbo->tbo.sync_obj) 384 work->fence = radeon_fence_ref(rbo->tbo.sync_obj); 385 spin_unlock(&rbo->tbo.bdev->fence_lock); 386 387 INIT_WORK(&work->work, radeon_unpin_work_func); 388 389 /* We borrow the event spin lock for protecting unpin_work */ 390 spin_lock_irqsave(&dev->event_lock, flags); 391 if (radeon_crtc->unpin_work) { 392 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 393 r = -EBUSY; 394 goto unlock_free; 395 } 396 radeon_crtc->unpin_work = work; 397 radeon_crtc->deferred_flip_completion = 0; 398 spin_unlock_irqrestore(&dev->event_lock, flags); 399 400 /* pin the new buffer */ 401 DRM_DEBUG_DRIVER("flip-ioctl() cur_fbo = %p, cur_bbo = %p\n", 402 work->old_rbo, rbo); 403 404 r = radeon_bo_reserve(rbo, false); 405 if (unlikely(r != 0)) { 406 DRM_ERROR("failed to reserve new rbo buffer before flip\n"); 407 goto pflip_cleanup; 408 } 409 /* Only 27 bit offset for legacy CRTC */ 410 r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 411 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, &base); 412 if (unlikely(r != 0)) { 413 radeon_bo_unreserve(rbo); 414 r = -EINVAL; 415 DRM_ERROR("failed to pin new rbo buffer before flip\n"); 416 goto pflip_cleanup; 417 } 418 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL); 419 radeon_bo_unreserve(rbo); 420 421 if (!ASIC_IS_AVIVO(rdev)) { 422 /* crtc offset is from display base addr not FB location */ 423 base -= radeon_crtc->legacy_display_base_addr; 424 pitch_pixels = fb->pitches[0] / (fb->bits_per_pixel / 8); 425 426 if (tiling_flags & RADEON_TILING_MACRO) { 427 if (ASIC_IS_R300(rdev)) { 428 base &= ~0x7ff; 429 } else { 430 int byteshift = fb->bits_per_pixel >> 4; 431 int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11; 432 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8); 433 } 434 } else { 435 int offset = crtc->y * pitch_pixels + crtc->x; 436 switch (fb->bits_per_pixel) { 437 case 8: 438 default: 439 offset *= 1; 440 break; 441 case 15: 442 case 16: 443 offset *= 2; 444 break; 445 case 24: 446 offset *= 3; 447 break; 448 case 32: 449 offset *= 4; 450 break; 451 } 452 base += offset; 453 } 454 base &= ~7; 455 } 456 457 spin_lock_irqsave(&dev->event_lock, flags); 458 work->new_crtc_base = base; 459 spin_unlock_irqrestore(&dev->event_lock, flags); 460 461 /* update crtc fb */ 462 crtc->fb = fb; 463 464 r = drm_vblank_get(dev, radeon_crtc->crtc_id); 465 if (r) { 466 DRM_ERROR("failed to get vblank before flip\n"); 467 goto pflip_cleanup1; 468 } 469 470 /* set the proper interrupt */ 471 radeon_pre_page_flip(rdev, radeon_crtc->crtc_id); 472 473 return 0; 474 475 pflip_cleanup1: 476 if (unlikely(radeon_bo_reserve(rbo, false) != 0)) { 477 DRM_ERROR("failed to reserve new rbo in error path\n"); 478 goto pflip_cleanup; 479 } 480 if (unlikely(radeon_bo_unpin(rbo) != 0)) { 481 DRM_ERROR("failed to unpin new rbo in error path\n"); 482 } 483 radeon_bo_unreserve(rbo); 484 485 pflip_cleanup: 486 spin_lock_irqsave(&dev->event_lock, flags); 487 radeon_crtc->unpin_work = NULL; 488 unlock_free: 489 spin_unlock_irqrestore(&dev->event_lock, flags); 490 drm_gem_object_unreference_unlocked(old_radeon_fb->obj); 491 radeon_fence_unref(&work->fence); 492 kfree(work); 493 494 return r; 495 } 496 497 static const struct drm_crtc_funcs radeon_crtc_funcs = { 498 .cursor_set = radeon_crtc_cursor_set, 499 .cursor_move = radeon_crtc_cursor_move, 500 .gamma_set = radeon_crtc_gamma_set, 501 .set_config = drm_crtc_helper_set_config, 502 .destroy = radeon_crtc_destroy, 503 .page_flip = radeon_crtc_page_flip, 504 }; 505 506 static void radeon_crtc_init(struct drm_device *dev, int index) 507 { 508 struct radeon_device *rdev = dev->dev_private; 509 struct radeon_crtc *radeon_crtc; 510 int i; 511 512 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); 513 if (radeon_crtc == NULL) 514 return; 515 516 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs); 517 518 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); 519 radeon_crtc->crtc_id = index; 520 rdev->mode_info.crtcs[index] = radeon_crtc; 521 522 #if 0 523 radeon_crtc->mode_set.crtc = &radeon_crtc->base; 524 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1); 525 radeon_crtc->mode_set.num_connectors = 0; 526 #endif 527 528 for (i = 0; i < 256; i++) { 529 radeon_crtc->lut_r[i] = i << 2; 530 radeon_crtc->lut_g[i] = i << 2; 531 radeon_crtc->lut_b[i] = i << 2; 532 } 533 534 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom)) 535 radeon_atombios_init_crtc(dev, radeon_crtc); 536 else 537 radeon_legacy_init_crtc(dev, radeon_crtc); 538 } 539 540 static const char *encoder_names[37] = { 541 "NONE", 542 "INTERNAL_LVDS", 543 "INTERNAL_TMDS1", 544 "INTERNAL_TMDS2", 545 "INTERNAL_DAC1", 546 "INTERNAL_DAC2", 547 "INTERNAL_SDVOA", 548 "INTERNAL_SDVOB", 549 "SI170B", 550 "CH7303", 551 "CH7301", 552 "INTERNAL_DVO1", 553 "EXTERNAL_SDVOA", 554 "EXTERNAL_SDVOB", 555 "TITFP513", 556 "INTERNAL_LVTM1", 557 "VT1623", 558 "HDMI_SI1930", 559 "HDMI_INTERNAL", 560 "INTERNAL_KLDSCP_TMDS1", 561 "INTERNAL_KLDSCP_DVO1", 562 "INTERNAL_KLDSCP_DAC1", 563 "INTERNAL_KLDSCP_DAC2", 564 "SI178", 565 "MVPU_FPGA", 566 "INTERNAL_DDI", 567 "VT1625", 568 "HDMI_SI1932", 569 "DP_AN9801", 570 "DP_DP501", 571 "INTERNAL_UNIPHY", 572 "INTERNAL_KLDSCP_LVTMA", 573 "INTERNAL_UNIPHY1", 574 "INTERNAL_UNIPHY2", 575 "NUTMEG", 576 "TRAVIS", 577 "INTERNAL_VCE" 578 }; 579 580 static const char *hpd_names[6] = { 581 "HPD1", 582 "HPD2", 583 "HPD3", 584 "HPD4", 585 "HPD5", 586 "HPD6", 587 }; 588 589 static void radeon_print_display_setup(struct drm_device *dev) 590 { 591 struct drm_connector *connector; 592 struct radeon_connector *radeon_connector; 593 struct drm_encoder *encoder; 594 struct radeon_encoder *radeon_encoder; 595 uint32_t devices; 596 int i = 0; 597 598 DRM_INFO("Radeon Display Connectors\n"); 599 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 600 radeon_connector = to_radeon_connector(connector); 601 DRM_INFO("Connector %d:\n", i); 602 DRM_INFO(" %s\n", drm_get_connector_name(connector)); 603 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE) 604 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]); 605 if (radeon_connector->ddc_bus) { 606 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 607 radeon_connector->ddc_bus->rec.mask_clk_reg, 608 radeon_connector->ddc_bus->rec.mask_data_reg, 609 radeon_connector->ddc_bus->rec.a_clk_reg, 610 radeon_connector->ddc_bus->rec.a_data_reg, 611 radeon_connector->ddc_bus->rec.en_clk_reg, 612 radeon_connector->ddc_bus->rec.en_data_reg, 613 radeon_connector->ddc_bus->rec.y_clk_reg, 614 radeon_connector->ddc_bus->rec.y_data_reg); 615 if (radeon_connector->router.ddc_valid) 616 DRM_INFO(" DDC Router 0x%x/0x%x\n", 617 radeon_connector->router.ddc_mux_control_pin, 618 radeon_connector->router.ddc_mux_state); 619 if (radeon_connector->router.cd_valid) 620 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 621 radeon_connector->router.cd_mux_control_pin, 622 radeon_connector->router.cd_mux_state); 623 } else { 624 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 625 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 626 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 627 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 628 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 629 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 630 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 631 } 632 DRM_INFO(" Encoders:\n"); 633 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 634 radeon_encoder = to_radeon_encoder(encoder); 635 devices = radeon_encoder->devices & radeon_connector->devices; 636 if (devices) { 637 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 638 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]); 639 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 640 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]); 641 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 642 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]); 643 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 644 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]); 645 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 646 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]); 647 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 648 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]); 649 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 650 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]); 651 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 652 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]); 653 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 654 DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]); 655 if (devices & ATOM_DEVICE_TV1_SUPPORT) 656 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]); 657 if (devices & ATOM_DEVICE_CV_SUPPORT) 658 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]); 659 } 660 } 661 i++; 662 } 663 } 664 665 static bool radeon_setup_enc_conn(struct drm_device *dev) 666 { 667 struct radeon_device *rdev = dev->dev_private; 668 bool ret = false; 669 670 if (rdev->bios) { 671 if (rdev->is_atom_bios) { 672 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev); 673 if (ret == false) 674 ret = radeon_get_atom_connector_info_from_object_table(dev); 675 } else { 676 ret = radeon_get_legacy_connector_info_from_bios(dev); 677 if (ret == false) 678 ret = radeon_get_legacy_connector_info_from_table(dev); 679 } 680 } else { 681 if (!ASIC_IS_AVIVO(rdev)) 682 ret = radeon_get_legacy_connector_info_from_table(dev); 683 } 684 if (ret) { 685 radeon_setup_encoder_clones(dev); 686 radeon_print_display_setup(dev); 687 } 688 689 return ret; 690 } 691 692 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector) 693 { 694 struct drm_device *dev = radeon_connector->base.dev; 695 struct radeon_device *rdev = dev->dev_private; 696 int ret = 0; 697 698 /* on hw with routers, select right port */ 699 if (radeon_connector->router.ddc_valid) 700 radeon_router_select_ddc_port(radeon_connector); 701 702 if (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) != 703 ENCODER_OBJECT_ID_NONE) { 704 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; 705 706 if (dig->dp_i2c_bus) 707 radeon_connector->edid = drm_get_edid(&radeon_connector->base, 708 &dig->dp_i2c_bus->adapter); 709 } else if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) || 710 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) { 711 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv; 712 713 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT || 714 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus) 715 radeon_connector->edid = drm_get_edid(&radeon_connector->base, 716 &dig->dp_i2c_bus->adapter); 717 else if (radeon_connector->ddc_bus && !radeon_connector->edid) 718 radeon_connector->edid = drm_get_edid(&radeon_connector->base, 719 &radeon_connector->ddc_bus->adapter); 720 } else { 721 if (radeon_connector->ddc_bus && !radeon_connector->edid) 722 radeon_connector->edid = drm_get_edid(&radeon_connector->base, 723 &radeon_connector->ddc_bus->adapter); 724 } 725 726 if (!radeon_connector->edid) { 727 if (rdev->is_atom_bios) { 728 /* some laptops provide a hardcoded edid in rom for LCDs */ 729 if (((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_LVDS) || 730 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP))) 731 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev); 732 } else 733 /* some servers provide a hardcoded edid in rom for KVMs */ 734 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev); 735 } 736 if (radeon_connector->edid) { 737 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid); 738 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid); 739 return ret; 740 } 741 drm_mode_connector_update_edid_property(&radeon_connector->base, NULL); 742 return 0; 743 } 744 745 /* avivo */ 746 static void avivo_get_fb_div(struct radeon_pll *pll, 747 u32 target_clock, 748 u32 post_div, 749 u32 ref_div, 750 u32 *fb_div, 751 u32 *frac_fb_div) 752 { 753 u32 tmp = post_div * ref_div; 754 755 tmp *= target_clock; 756 *fb_div = tmp / pll->reference_freq; 757 *frac_fb_div = tmp % pll->reference_freq; 758 759 if (*fb_div > pll->max_feedback_div) 760 *fb_div = pll->max_feedback_div; 761 else if (*fb_div < pll->min_feedback_div) 762 *fb_div = pll->min_feedback_div; 763 } 764 765 static u32 avivo_get_post_div(struct radeon_pll *pll, 766 u32 target_clock) 767 { 768 u32 vco, post_div, tmp; 769 770 if (pll->flags & RADEON_PLL_USE_POST_DIV) 771 return pll->post_div; 772 773 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) { 774 if (pll->flags & RADEON_PLL_IS_LCD) 775 vco = pll->lcd_pll_out_min; 776 else 777 vco = pll->pll_out_min; 778 } else { 779 if (pll->flags & RADEON_PLL_IS_LCD) 780 vco = pll->lcd_pll_out_max; 781 else 782 vco = pll->pll_out_max; 783 } 784 785 post_div = vco / target_clock; 786 tmp = vco % target_clock; 787 788 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) { 789 if (tmp) 790 post_div++; 791 } else { 792 if (!tmp) 793 post_div--; 794 } 795 796 if (post_div > pll->max_post_div) 797 post_div = pll->max_post_div; 798 else if (post_div < pll->min_post_div) 799 post_div = pll->min_post_div; 800 801 return post_div; 802 } 803 804 #define MAX_TOLERANCE 10 805 806 void radeon_compute_pll_avivo(struct radeon_pll *pll, 807 u32 freq, 808 u32 *dot_clock_p, 809 u32 *fb_div_p, 810 u32 *frac_fb_div_p, 811 u32 *ref_div_p, 812 u32 *post_div_p) 813 { 814 u32 target_clock = freq / 10; 815 u32 post_div = avivo_get_post_div(pll, target_clock); 816 u32 ref_div = pll->min_ref_div; 817 u32 fb_div = 0, frac_fb_div = 0, tmp; 818 819 if (pll->flags & RADEON_PLL_USE_REF_DIV) 820 ref_div = pll->reference_div; 821 822 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 823 avivo_get_fb_div(pll, target_clock, post_div, ref_div, &fb_div, &frac_fb_div); 824 frac_fb_div = (100 * frac_fb_div) / pll->reference_freq; 825 if (frac_fb_div >= 5) { 826 frac_fb_div -= 5; 827 frac_fb_div = frac_fb_div / 10; 828 frac_fb_div++; 829 } 830 if (frac_fb_div >= 10) { 831 fb_div++; 832 frac_fb_div = 0; 833 } 834 } else { 835 while (ref_div <= pll->max_ref_div) { 836 avivo_get_fb_div(pll, target_clock, post_div, ref_div, 837 &fb_div, &frac_fb_div); 838 if (frac_fb_div >= (pll->reference_freq / 2)) 839 fb_div++; 840 frac_fb_div = 0; 841 tmp = (pll->reference_freq * fb_div) / (post_div * ref_div); 842 tmp = (tmp * 10000) / target_clock; 843 844 if (tmp > (10000 + MAX_TOLERANCE)) 845 ref_div++; 846 else if (tmp >= (10000 - MAX_TOLERANCE)) 847 break; 848 else 849 ref_div++; 850 } 851 } 852 853 *dot_clock_p = ((pll->reference_freq * fb_div * 10) + (pll->reference_freq * frac_fb_div)) / 854 (ref_div * post_div * 10); 855 *fb_div_p = fb_div; 856 *frac_fb_div_p = frac_fb_div; 857 *ref_div_p = ref_div; 858 *post_div_p = post_div; 859 DRM_DEBUG_KMS("%d, pll dividers - fb: %d.%d ref: %d, post %d\n", 860 *dot_clock_p, fb_div, frac_fb_div, ref_div, post_div); 861 } 862 863 /* pre-avivo */ 864 static inline uint32_t radeon_div(uint64_t n, uint32_t d) 865 { 866 uint64_t mod; 867 868 n += d / 2; 869 870 mod = do_div(n, d); 871 return n; 872 } 873 874 void radeon_compute_pll_legacy(struct radeon_pll *pll, 875 uint64_t freq, 876 uint32_t *dot_clock_p, 877 uint32_t *fb_div_p, 878 uint32_t *frac_fb_div_p, 879 uint32_t *ref_div_p, 880 uint32_t *post_div_p) 881 { 882 uint32_t min_ref_div = pll->min_ref_div; 883 uint32_t max_ref_div = pll->max_ref_div; 884 uint32_t min_post_div = pll->min_post_div; 885 uint32_t max_post_div = pll->max_post_div; 886 uint32_t min_fractional_feed_div = 0; 887 uint32_t max_fractional_feed_div = 0; 888 uint32_t best_vco = pll->best_vco; 889 uint32_t best_post_div = 1; 890 uint32_t best_ref_div = 1; 891 uint32_t best_feedback_div = 1; 892 uint32_t best_frac_feedback_div = 0; 893 uint32_t best_freq = -1; 894 uint32_t best_error = 0xffffffff; 895 uint32_t best_vco_diff = 1; 896 uint32_t post_div; 897 u32 pll_out_min, pll_out_max; 898 899 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); 900 freq = freq * 1000; 901 902 if (pll->flags & RADEON_PLL_IS_LCD) { 903 pll_out_min = pll->lcd_pll_out_min; 904 pll_out_max = pll->lcd_pll_out_max; 905 } else { 906 pll_out_min = pll->pll_out_min; 907 pll_out_max = pll->pll_out_max; 908 } 909 910 if (pll_out_min > 64800) 911 pll_out_min = 64800; 912 913 if (pll->flags & RADEON_PLL_USE_REF_DIV) 914 min_ref_div = max_ref_div = pll->reference_div; 915 else { 916 while (min_ref_div < max_ref_div-1) { 917 uint32_t mid = (min_ref_div + max_ref_div) / 2; 918 uint32_t pll_in = pll->reference_freq / mid; 919 if (pll_in < pll->pll_in_min) 920 max_ref_div = mid; 921 else if (pll_in > pll->pll_in_max) 922 min_ref_div = mid; 923 else 924 break; 925 } 926 } 927 928 if (pll->flags & RADEON_PLL_USE_POST_DIV) 929 min_post_div = max_post_div = pll->post_div; 930 931 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 932 min_fractional_feed_div = pll->min_frac_feedback_div; 933 max_fractional_feed_div = pll->max_frac_feedback_div; 934 } 935 936 for (post_div = max_post_div; post_div >= min_post_div; --post_div) { 937 uint32_t ref_div; 938 939 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1)) 940 continue; 941 942 /* legacy radeons only have a few post_divs */ 943 if (pll->flags & RADEON_PLL_LEGACY) { 944 if ((post_div == 5) || 945 (post_div == 7) || 946 (post_div == 9) || 947 (post_div == 10) || 948 (post_div == 11) || 949 (post_div == 13) || 950 (post_div == 14) || 951 (post_div == 15)) 952 continue; 953 } 954 955 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) { 956 uint32_t feedback_div, current_freq = 0, error, vco_diff; 957 uint32_t pll_in = pll->reference_freq / ref_div; 958 uint32_t min_feed_div = pll->min_feedback_div; 959 uint32_t max_feed_div = pll->max_feedback_div + 1; 960 961 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max) 962 continue; 963 964 while (min_feed_div < max_feed_div) { 965 uint32_t vco; 966 uint32_t min_frac_feed_div = min_fractional_feed_div; 967 uint32_t max_frac_feed_div = max_fractional_feed_div + 1; 968 uint32_t frac_feedback_div; 969 uint64_t tmp; 970 971 feedback_div = (min_feed_div + max_feed_div) / 2; 972 973 tmp = (uint64_t)pll->reference_freq * feedback_div; 974 vco = radeon_div(tmp, ref_div); 975 976 if (vco < pll_out_min) { 977 min_feed_div = feedback_div + 1; 978 continue; 979 } else if (vco > pll_out_max) { 980 max_feed_div = feedback_div; 981 continue; 982 } 983 984 while (min_frac_feed_div < max_frac_feed_div) { 985 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2; 986 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div; 987 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div; 988 current_freq = radeon_div(tmp, ref_div * post_div); 989 990 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) { 991 if (freq < current_freq) 992 error = 0xffffffff; 993 else 994 error = freq - current_freq; 995 } else 996 error = abs(current_freq - freq); 997 vco_diff = abs(vco - best_vco); 998 999 if ((best_vco == 0 && error < best_error) || 1000 (best_vco != 0 && 1001 ((best_error > 100 && error < best_error - 100) || 1002 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) { 1003 best_post_div = post_div; 1004 best_ref_div = ref_div; 1005 best_feedback_div = feedback_div; 1006 best_frac_feedback_div = frac_feedback_div; 1007 best_freq = current_freq; 1008 best_error = error; 1009 best_vco_diff = vco_diff; 1010 } else if (current_freq == freq) { 1011 if (best_freq == -1) { 1012 best_post_div = post_div; 1013 best_ref_div = ref_div; 1014 best_feedback_div = feedback_div; 1015 best_frac_feedback_div = frac_feedback_div; 1016 best_freq = current_freq; 1017 best_error = error; 1018 best_vco_diff = vco_diff; 1019 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || 1020 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || 1021 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || 1022 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || 1023 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || 1024 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) { 1025 best_post_div = post_div; 1026 best_ref_div = ref_div; 1027 best_feedback_div = feedback_div; 1028 best_frac_feedback_div = frac_feedback_div; 1029 best_freq = current_freq; 1030 best_error = error; 1031 best_vco_diff = vco_diff; 1032 } 1033 } 1034 if (current_freq < freq) 1035 min_frac_feed_div = frac_feedback_div + 1; 1036 else 1037 max_frac_feed_div = frac_feedback_div; 1038 } 1039 if (current_freq < freq) 1040 min_feed_div = feedback_div + 1; 1041 else 1042 max_feed_div = feedback_div; 1043 } 1044 } 1045 } 1046 1047 *dot_clock_p = best_freq / 10000; 1048 *fb_div_p = best_feedback_div; 1049 *frac_fb_div_p = best_frac_feedback_div; 1050 *ref_div_p = best_ref_div; 1051 *post_div_p = best_post_div; 1052 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n", 1053 (long long)freq, 1054 best_freq / 1000, best_feedback_div, best_frac_feedback_div, 1055 best_ref_div, best_post_div); 1056 1057 } 1058 1059 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb) 1060 { 1061 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb); 1062 1063 if (radeon_fb->obj) { 1064 drm_gem_object_unreference_unlocked(radeon_fb->obj); 1065 } 1066 drm_framebuffer_cleanup(fb); 1067 kfree(radeon_fb); 1068 } 1069 1070 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb, 1071 struct drm_file *file_priv, 1072 unsigned int *handle) 1073 { 1074 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb); 1075 1076 return drm_gem_handle_create(file_priv, radeon_fb->obj, handle); 1077 } 1078 1079 static const struct drm_framebuffer_funcs radeon_fb_funcs = { 1080 .destroy = radeon_user_framebuffer_destroy, 1081 .create_handle = radeon_user_framebuffer_create_handle, 1082 }; 1083 1084 int 1085 radeon_framebuffer_init(struct drm_device *dev, 1086 struct radeon_framebuffer *rfb, 1087 struct drm_mode_fb_cmd2 *mode_cmd, 1088 struct drm_gem_object *obj) 1089 { 1090 int ret; 1091 rfb->obj = obj; 1092 ret = drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs); 1093 if (ret) { 1094 rfb->obj = NULL; 1095 return ret; 1096 } 1097 drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd); 1098 return 0; 1099 } 1100 1101 static struct drm_framebuffer * 1102 radeon_user_framebuffer_create(struct drm_device *dev, 1103 struct drm_file *file_priv, 1104 struct drm_mode_fb_cmd2 *mode_cmd) 1105 { 1106 struct drm_gem_object *obj; 1107 struct radeon_framebuffer *radeon_fb; 1108 int ret; 1109 1110 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]); 1111 if (obj == NULL) { 1112 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " 1113 "can't create framebuffer\n", mode_cmd->handles[0]); 1114 return ERR_PTR(-ENOENT); 1115 } 1116 1117 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL); 1118 if (radeon_fb == NULL) 1119 return ERR_PTR(-ENOMEM); 1120 1121 ret = radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj); 1122 if (ret) { 1123 kfree(radeon_fb); 1124 drm_gem_object_unreference_unlocked(obj); 1125 return NULL; 1126 } 1127 1128 return &radeon_fb->base; 1129 } 1130 1131 static void radeon_output_poll_changed(struct drm_device *dev) 1132 { 1133 struct radeon_device *rdev = dev->dev_private; 1134 radeon_fb_output_poll_changed(rdev); 1135 } 1136 1137 static const struct drm_mode_config_funcs radeon_mode_funcs = { 1138 .fb_create = radeon_user_framebuffer_create, 1139 .output_poll_changed = radeon_output_poll_changed 1140 }; 1141 1142 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] = 1143 { { 0, "driver" }, 1144 { 1, "bios" }, 1145 }; 1146 1147 static struct drm_prop_enum_list radeon_tv_std_enum_list[] = 1148 { { TV_STD_NTSC, "ntsc" }, 1149 { TV_STD_PAL, "pal" }, 1150 { TV_STD_PAL_M, "pal-m" }, 1151 { TV_STD_PAL_60, "pal-60" }, 1152 { TV_STD_NTSC_J, "ntsc-j" }, 1153 { TV_STD_SCART_PAL, "scart-pal" }, 1154 { TV_STD_PAL_CN, "pal-cn" }, 1155 { TV_STD_SECAM, "secam" }, 1156 }; 1157 1158 static struct drm_prop_enum_list radeon_underscan_enum_list[] = 1159 { { UNDERSCAN_OFF, "off" }, 1160 { UNDERSCAN_ON, "on" }, 1161 { UNDERSCAN_AUTO, "auto" }, 1162 }; 1163 1164 static int radeon_modeset_create_props(struct radeon_device *rdev) 1165 { 1166 int sz; 1167 1168 if (rdev->is_atom_bios) { 1169 rdev->mode_info.coherent_mode_property = 1170 drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1); 1171 if (!rdev->mode_info.coherent_mode_property) 1172 return -ENOMEM; 1173 } 1174 1175 if (!ASIC_IS_AVIVO(rdev)) { 1176 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list); 1177 rdev->mode_info.tmds_pll_property = 1178 drm_property_create_enum(rdev->ddev, 0, 1179 "tmds_pll", 1180 radeon_tmds_pll_enum_list, sz); 1181 } 1182 1183 rdev->mode_info.load_detect_property = 1184 drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1); 1185 if (!rdev->mode_info.load_detect_property) 1186 return -ENOMEM; 1187 1188 drm_mode_create_scaling_mode_property(rdev->ddev); 1189 1190 sz = ARRAY_SIZE(radeon_tv_std_enum_list); 1191 rdev->mode_info.tv_std_property = 1192 drm_property_create_enum(rdev->ddev, 0, 1193 "tv standard", 1194 radeon_tv_std_enum_list, sz); 1195 1196 sz = ARRAY_SIZE(radeon_underscan_enum_list); 1197 rdev->mode_info.underscan_property = 1198 drm_property_create_enum(rdev->ddev, 0, 1199 "underscan", 1200 radeon_underscan_enum_list, sz); 1201 1202 rdev->mode_info.underscan_hborder_property = 1203 drm_property_create_range(rdev->ddev, 0, 1204 "underscan hborder", 0, 128); 1205 if (!rdev->mode_info.underscan_hborder_property) 1206 return -ENOMEM; 1207 1208 rdev->mode_info.underscan_vborder_property = 1209 drm_property_create_range(rdev->ddev, 0, 1210 "underscan vborder", 0, 128); 1211 if (!rdev->mode_info.underscan_vborder_property) 1212 return -ENOMEM; 1213 1214 return 0; 1215 } 1216 1217 void radeon_update_display_priority(struct radeon_device *rdev) 1218 { 1219 /* adjustment options for the display watermarks */ 1220 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) { 1221 /* set display priority to high for r3xx, rv515 chips 1222 * this avoids flickering due to underflow to the 1223 * display controllers during heavy acceleration. 1224 * Don't force high on rs4xx igp chips as it seems to 1225 * affect the sound card. See kernel bug 15982. 1226 */ 1227 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) && 1228 !(rdev->flags & RADEON_IS_IGP)) 1229 rdev->disp_priority = 2; 1230 else 1231 rdev->disp_priority = 0; 1232 } else 1233 rdev->disp_priority = radeon_disp_priority; 1234 1235 } 1236 1237 /* 1238 * Allocate hdmi structs and determine register offsets 1239 */ 1240 static void radeon_afmt_init(struct radeon_device *rdev) 1241 { 1242 int i; 1243 1244 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) 1245 rdev->mode_info.afmt[i] = NULL; 1246 1247 if (ASIC_IS_DCE6(rdev)) { 1248 /* todo */ 1249 } else if (ASIC_IS_DCE4(rdev)) { 1250 /* DCE4/5 has 6 audio blocks tied to DIG encoders */ 1251 /* DCE4.1 has 2 audio blocks tied to DIG encoders */ 1252 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1253 if (rdev->mode_info.afmt[0]) { 1254 rdev->mode_info.afmt[0]->offset = EVERGREEN_CRTC0_REGISTER_OFFSET; 1255 rdev->mode_info.afmt[0]->id = 0; 1256 } 1257 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1258 if (rdev->mode_info.afmt[1]) { 1259 rdev->mode_info.afmt[1]->offset = EVERGREEN_CRTC1_REGISTER_OFFSET; 1260 rdev->mode_info.afmt[1]->id = 1; 1261 } 1262 if (!ASIC_IS_DCE41(rdev)) { 1263 rdev->mode_info.afmt[2] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1264 if (rdev->mode_info.afmt[2]) { 1265 rdev->mode_info.afmt[2]->offset = EVERGREEN_CRTC2_REGISTER_OFFSET; 1266 rdev->mode_info.afmt[2]->id = 2; 1267 } 1268 rdev->mode_info.afmt[3] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1269 if (rdev->mode_info.afmt[3]) { 1270 rdev->mode_info.afmt[3]->offset = EVERGREEN_CRTC3_REGISTER_OFFSET; 1271 rdev->mode_info.afmt[3]->id = 3; 1272 } 1273 rdev->mode_info.afmt[4] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1274 if (rdev->mode_info.afmt[4]) { 1275 rdev->mode_info.afmt[4]->offset = EVERGREEN_CRTC4_REGISTER_OFFSET; 1276 rdev->mode_info.afmt[4]->id = 4; 1277 } 1278 rdev->mode_info.afmt[5] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1279 if (rdev->mode_info.afmt[5]) { 1280 rdev->mode_info.afmt[5]->offset = EVERGREEN_CRTC5_REGISTER_OFFSET; 1281 rdev->mode_info.afmt[5]->id = 5; 1282 } 1283 } 1284 } else if (ASIC_IS_DCE3(rdev)) { 1285 /* DCE3.x has 2 audio blocks tied to DIG encoders */ 1286 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1287 if (rdev->mode_info.afmt[0]) { 1288 rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0; 1289 rdev->mode_info.afmt[0]->id = 0; 1290 } 1291 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1292 if (rdev->mode_info.afmt[1]) { 1293 rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1; 1294 rdev->mode_info.afmt[1]->id = 1; 1295 } 1296 } else if (ASIC_IS_DCE2(rdev)) { 1297 /* DCE2 has at least 1 routable audio block */ 1298 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1299 if (rdev->mode_info.afmt[0]) { 1300 rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0; 1301 rdev->mode_info.afmt[0]->id = 0; 1302 } 1303 /* r6xx has 2 routable audio blocks */ 1304 if (rdev->family >= CHIP_R600) { 1305 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1306 if (rdev->mode_info.afmt[1]) { 1307 rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1; 1308 rdev->mode_info.afmt[1]->id = 1; 1309 } 1310 } 1311 } 1312 } 1313 1314 static void radeon_afmt_fini(struct radeon_device *rdev) 1315 { 1316 int i; 1317 1318 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) { 1319 kfree(rdev->mode_info.afmt[i]); 1320 rdev->mode_info.afmt[i] = NULL; 1321 } 1322 } 1323 1324 int radeon_modeset_init(struct radeon_device *rdev) 1325 { 1326 int i; 1327 int ret; 1328 1329 drm_mode_config_init(rdev->ddev); 1330 rdev->mode_info.mode_config_initialized = true; 1331 1332 rdev->ddev->mode_config.funcs = &radeon_mode_funcs; 1333 1334 if (ASIC_IS_DCE5(rdev)) { 1335 rdev->ddev->mode_config.max_width = 16384; 1336 rdev->ddev->mode_config.max_height = 16384; 1337 } else if (ASIC_IS_AVIVO(rdev)) { 1338 rdev->ddev->mode_config.max_width = 8192; 1339 rdev->ddev->mode_config.max_height = 8192; 1340 } else { 1341 rdev->ddev->mode_config.max_width = 4096; 1342 rdev->ddev->mode_config.max_height = 4096; 1343 } 1344 1345 rdev->ddev->mode_config.preferred_depth = 24; 1346 rdev->ddev->mode_config.prefer_shadow = 1; 1347 1348 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base; 1349 1350 ret = radeon_modeset_create_props(rdev); 1351 if (ret) { 1352 return ret; 1353 } 1354 1355 /* init i2c buses */ 1356 radeon_i2c_init(rdev); 1357 1358 /* check combios for a valid hardcoded EDID - Sun servers */ 1359 if (!rdev->is_atom_bios) { 1360 /* check for hardcoded EDID in BIOS */ 1361 radeon_combios_check_hardcoded_edid(rdev); 1362 } 1363 1364 /* allocate crtcs */ 1365 for (i = 0; i < rdev->num_crtc; i++) { 1366 radeon_crtc_init(rdev->ddev, i); 1367 } 1368 1369 /* okay we should have all the bios connectors */ 1370 ret = radeon_setup_enc_conn(rdev->ddev); 1371 if (!ret) { 1372 return ret; 1373 } 1374 1375 /* init dig PHYs, disp eng pll */ 1376 if (rdev->is_atom_bios) { 1377 radeon_atom_encoder_init(rdev); 1378 radeon_atom_disp_eng_pll_init(rdev); 1379 } 1380 1381 /* initialize hpd */ 1382 radeon_hpd_init(rdev); 1383 1384 /* setup afmt */ 1385 radeon_afmt_init(rdev); 1386 1387 /* Initialize power management */ 1388 radeon_pm_init(rdev); 1389 1390 radeon_fbdev_init(rdev); 1391 drm_kms_helper_poll_init(rdev->ddev); 1392 1393 return 0; 1394 } 1395 1396 void radeon_modeset_fini(struct radeon_device *rdev) 1397 { 1398 radeon_fbdev_fini(rdev); 1399 kfree(rdev->mode_info.bios_hardcoded_edid); 1400 radeon_pm_fini(rdev); 1401 1402 if (rdev->mode_info.mode_config_initialized) { 1403 radeon_afmt_fini(rdev); 1404 drm_kms_helper_poll_fini(rdev->ddev); 1405 radeon_hpd_fini(rdev); 1406 drm_mode_config_cleanup(rdev->ddev); 1407 rdev->mode_info.mode_config_initialized = false; 1408 } 1409 /* free i2c buses */ 1410 radeon_i2c_fini(rdev); 1411 } 1412 1413 static bool is_hdtv_mode(const struct drm_display_mode *mode) 1414 { 1415 /* try and guess if this is a tv or a monitor */ 1416 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1417 (mode->vdisplay == 576) || /* 576p */ 1418 (mode->vdisplay == 720) || /* 720p */ 1419 (mode->vdisplay == 1080)) /* 1080p */ 1420 return true; 1421 else 1422 return false; 1423 } 1424 1425 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1426 const struct drm_display_mode *mode, 1427 struct drm_display_mode *adjusted_mode) 1428 { 1429 struct drm_device *dev = crtc->dev; 1430 struct radeon_device *rdev = dev->dev_private; 1431 struct drm_encoder *encoder; 1432 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 1433 struct radeon_encoder *radeon_encoder; 1434 struct drm_connector *connector; 1435 struct radeon_connector *radeon_connector; 1436 bool first = true; 1437 u32 src_v = 1, dst_v = 1; 1438 u32 src_h = 1, dst_h = 1; 1439 1440 radeon_crtc->h_border = 0; 1441 radeon_crtc->v_border = 0; 1442 1443 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1444 if (encoder->crtc != crtc) 1445 continue; 1446 radeon_encoder = to_radeon_encoder(encoder); 1447 connector = radeon_get_connector_for_encoder(encoder); 1448 radeon_connector = to_radeon_connector(connector); 1449 1450 if (first) { 1451 /* set scaling */ 1452 if (radeon_encoder->rmx_type == RMX_OFF) 1453 radeon_crtc->rmx_type = RMX_OFF; 1454 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay || 1455 mode->vdisplay < radeon_encoder->native_mode.vdisplay) 1456 radeon_crtc->rmx_type = radeon_encoder->rmx_type; 1457 else 1458 radeon_crtc->rmx_type = RMX_OFF; 1459 /* copy native mode */ 1460 memcpy(&radeon_crtc->native_mode, 1461 &radeon_encoder->native_mode, 1462 sizeof(struct drm_display_mode)); 1463 src_v = crtc->mode.vdisplay; 1464 dst_v = radeon_crtc->native_mode.vdisplay; 1465 src_h = crtc->mode.hdisplay; 1466 dst_h = radeon_crtc->native_mode.hdisplay; 1467 1468 /* fix up for overscan on hdmi */ 1469 if (ASIC_IS_AVIVO(rdev) && 1470 (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1471 ((radeon_encoder->underscan_type == UNDERSCAN_ON) || 1472 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) && 1473 drm_detect_hdmi_monitor(radeon_connector->edid) && 1474 is_hdtv_mode(mode)))) { 1475 if (radeon_encoder->underscan_hborder != 0) 1476 radeon_crtc->h_border = radeon_encoder->underscan_hborder; 1477 else 1478 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16; 1479 if (radeon_encoder->underscan_vborder != 0) 1480 radeon_crtc->v_border = radeon_encoder->underscan_vborder; 1481 else 1482 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16; 1483 radeon_crtc->rmx_type = RMX_FULL; 1484 src_v = crtc->mode.vdisplay; 1485 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2); 1486 src_h = crtc->mode.hdisplay; 1487 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2); 1488 } 1489 first = false; 1490 } else { 1491 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) { 1492 /* WARNING: Right now this can't happen but 1493 * in the future we need to check that scaling 1494 * are consistent across different encoder 1495 * (ie all encoder can work with the same 1496 * scaling). 1497 */ 1498 DRM_ERROR("Scaling not consistent across encoder.\n"); 1499 return false; 1500 } 1501 } 1502 } 1503 if (radeon_crtc->rmx_type != RMX_OFF) { 1504 fixed20_12 a, b; 1505 a.full = dfixed_const(src_v); 1506 b.full = dfixed_const(dst_v); 1507 radeon_crtc->vsc.full = dfixed_div(a, b); 1508 a.full = dfixed_const(src_h); 1509 b.full = dfixed_const(dst_h); 1510 radeon_crtc->hsc.full = dfixed_div(a, b); 1511 } else { 1512 radeon_crtc->vsc.full = dfixed_const(1); 1513 radeon_crtc->hsc.full = dfixed_const(1); 1514 } 1515 return true; 1516 } 1517 1518 /* 1519 * Retrieve current video scanout position of crtc on a given gpu. 1520 * 1521 * \param dev Device to query. 1522 * \param crtc Crtc to query. 1523 * \param *vpos Location where vertical scanout position should be stored. 1524 * \param *hpos Location where horizontal scanout position should go. 1525 * 1526 * Returns vpos as a positive number while in active scanout area. 1527 * Returns vpos as a negative number inside vblank, counting the number 1528 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1529 * until start of active scanout / end of vblank." 1530 * 1531 * \return Flags, or'ed together as follows: 1532 * 1533 * DRM_SCANOUTPOS_VALID = Query successful. 1534 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1535 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1536 * this flag means that returned position may be offset by a constant but 1537 * unknown small number of scanlines wrt. real scanout position. 1538 * 1539 */ 1540 int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos) 1541 { 1542 u32 stat_crtc = 0, vbl = 0, position = 0; 1543 int vbl_start, vbl_end, vtotal, ret = 0; 1544 bool in_vbl = true; 1545 1546 struct radeon_device *rdev = dev->dev_private; 1547 1548 if (ASIC_IS_DCE4(rdev)) { 1549 if (crtc == 0) { 1550 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1551 EVERGREEN_CRTC0_REGISTER_OFFSET); 1552 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1553 EVERGREEN_CRTC0_REGISTER_OFFSET); 1554 ret |= DRM_SCANOUTPOS_VALID; 1555 } 1556 if (crtc == 1) { 1557 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1558 EVERGREEN_CRTC1_REGISTER_OFFSET); 1559 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1560 EVERGREEN_CRTC1_REGISTER_OFFSET); 1561 ret |= DRM_SCANOUTPOS_VALID; 1562 } 1563 if (crtc == 2) { 1564 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1565 EVERGREEN_CRTC2_REGISTER_OFFSET); 1566 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1567 EVERGREEN_CRTC2_REGISTER_OFFSET); 1568 ret |= DRM_SCANOUTPOS_VALID; 1569 } 1570 if (crtc == 3) { 1571 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1572 EVERGREEN_CRTC3_REGISTER_OFFSET); 1573 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1574 EVERGREEN_CRTC3_REGISTER_OFFSET); 1575 ret |= DRM_SCANOUTPOS_VALID; 1576 } 1577 if (crtc == 4) { 1578 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1579 EVERGREEN_CRTC4_REGISTER_OFFSET); 1580 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1581 EVERGREEN_CRTC4_REGISTER_OFFSET); 1582 ret |= DRM_SCANOUTPOS_VALID; 1583 } 1584 if (crtc == 5) { 1585 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1586 EVERGREEN_CRTC5_REGISTER_OFFSET); 1587 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1588 EVERGREEN_CRTC5_REGISTER_OFFSET); 1589 ret |= DRM_SCANOUTPOS_VALID; 1590 } 1591 } else if (ASIC_IS_AVIVO(rdev)) { 1592 if (crtc == 0) { 1593 vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END); 1594 position = RREG32(AVIVO_D1CRTC_STATUS_POSITION); 1595 ret |= DRM_SCANOUTPOS_VALID; 1596 } 1597 if (crtc == 1) { 1598 vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END); 1599 position = RREG32(AVIVO_D2CRTC_STATUS_POSITION); 1600 ret |= DRM_SCANOUTPOS_VALID; 1601 } 1602 } else { 1603 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */ 1604 if (crtc == 0) { 1605 /* Assume vbl_end == 0, get vbl_start from 1606 * upper 16 bits. 1607 */ 1608 vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) & 1609 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1610 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */ 1611 position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1612 stat_crtc = RREG32(RADEON_CRTC_STATUS); 1613 if (!(stat_crtc & 1)) 1614 in_vbl = false; 1615 1616 ret |= DRM_SCANOUTPOS_VALID; 1617 } 1618 if (crtc == 1) { 1619 vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) & 1620 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1621 position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1622 stat_crtc = RREG32(RADEON_CRTC2_STATUS); 1623 if (!(stat_crtc & 1)) 1624 in_vbl = false; 1625 1626 ret |= DRM_SCANOUTPOS_VALID; 1627 } 1628 } 1629 1630 /* Decode into vertical and horizontal scanout position. */ 1631 *vpos = position & 0x1fff; 1632 *hpos = (position >> 16) & 0x1fff; 1633 1634 /* Valid vblank area boundaries from gpu retrieved? */ 1635 if (vbl > 0) { 1636 /* Yes: Decode. */ 1637 ret |= DRM_SCANOUTPOS_ACCURATE; 1638 vbl_start = vbl & 0x1fff; 1639 vbl_end = (vbl >> 16) & 0x1fff; 1640 } 1641 else { 1642 /* No: Fake something reasonable which gives at least ok results. */ 1643 vbl_start = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vdisplay; 1644 vbl_end = 0; 1645 } 1646 1647 /* Test scanout position against vblank region. */ 1648 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1649 in_vbl = false; 1650 1651 /* Check if inside vblank area and apply corrective offsets: 1652 * vpos will then be >=0 in video scanout area, but negative 1653 * within vblank area, counting down the number of lines until 1654 * start of scanout. 1655 */ 1656 1657 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1658 if (in_vbl && (*vpos >= vbl_start)) { 1659 vtotal = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vtotal; 1660 *vpos = *vpos - vtotal; 1661 } 1662 1663 /* Correct for shifted end of vbl at vbl_end. */ 1664 *vpos = *vpos - vbl_end; 1665 1666 /* In vblank? */ 1667 if (in_vbl) 1668 ret |= DRM_SCANOUTPOS_INVBL; 1669 1670 return ret; 1671 } 1672