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