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_fourcc.h> 38#include <drm/drm_framebuffer.h> 39#include <drm/drm_gem_framebuffer_helper.h> 40#include <drm/drm_modeset_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 49static 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 87static 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 121static 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 193static 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 221void 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 239static 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 248static 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 */ 264static 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 282void 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 */ 363void 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 */ 406static 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 478static 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 r = dma_resv_get_singleton(new_rbo->tbo.base.resv, DMA_RESV_USAGE_WRITE, 537 &work->fence); 538 if (r) { 539 radeon_bo_unreserve(new_rbo); 540 DRM_ERROR("failed to get new rbo buffer fences\n"); 541 goto cleanup; 542 } 543 radeon_bo_get_tiling_flags(new_rbo, &tiling_flags, NULL); 544 radeon_bo_unreserve(new_rbo); 545 546 if (!ASIC_IS_AVIVO(rdev)) { 547 /* crtc offset is from display base addr not FB location */ 548 base -= radeon_crtc->legacy_display_base_addr; 549 pitch_pixels = fb->pitches[0] / fb->format->cpp[0]; 550 551 if (tiling_flags & RADEON_TILING_MACRO) { 552 if (ASIC_IS_R300(rdev)) { 553 base &= ~0x7ff; 554 } else { 555 int byteshift = fb->format->cpp[0] * 8 >> 4; 556 int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11; 557 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8); 558 } 559 } else { 560 int offset = crtc->y * pitch_pixels + crtc->x; 561 switch (fb->format->cpp[0] * 8) { 562 case 8: 563 default: 564 offset *= 1; 565 break; 566 case 15: 567 case 16: 568 offset *= 2; 569 break; 570 case 24: 571 offset *= 3; 572 break; 573 case 32: 574 offset *= 4; 575 break; 576 } 577 base += offset; 578 } 579 base &= ~7; 580 } 581 work->base = base; 582 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 583 crtc->funcs->get_vblank_counter(crtc); 584 585 /* We borrow the event spin lock for protecting flip_work */ 586 spin_lock_irqsave(&crtc->dev->event_lock, flags); 587 588 if (radeon_crtc->flip_status != RADEON_FLIP_NONE) { 589 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 590 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 591 r = -EBUSY; 592 goto pflip_cleanup; 593 } 594 radeon_crtc->flip_status = RADEON_FLIP_PENDING; 595 radeon_crtc->flip_work = work; 596 597 /* update crtc fb */ 598 crtc->primary->fb = fb; 599 600 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 601 602 queue_work(radeon_crtc->flip_queue, &work->flip_work); 603 return 0; 604 605pflip_cleanup: 606 if (unlikely(radeon_bo_reserve(new_rbo, false) != 0)) { 607 DRM_ERROR("failed to reserve new rbo in error path\n"); 608 goto cleanup; 609 } 610 radeon_bo_unpin(new_rbo); 611 radeon_bo_unreserve(new_rbo); 612 613cleanup: 614 drm_gem_object_put(&work->old_rbo->tbo.base); 615 dma_fence_put(work->fence); 616 kfree(work); 617 return r; 618} 619 620static int 621radeon_crtc_set_config(struct drm_mode_set *set, 622 struct drm_modeset_acquire_ctx *ctx) 623{ 624 struct drm_device *dev; 625 struct radeon_device *rdev; 626 struct drm_crtc *crtc; 627 bool active = false; 628 int ret; 629 630 if (!set || !set->crtc) 631 return -EINVAL; 632 633 dev = set->crtc->dev; 634 635 ret = pm_runtime_get_sync(dev->dev); 636 if (ret < 0) { 637 pm_runtime_put_autosuspend(dev->dev); 638 return ret; 639 } 640 641 ret = drm_crtc_helper_set_config(set, ctx); 642 643 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 644 if (crtc->enabled) 645 active = true; 646 647 pm_runtime_mark_last_busy(dev->dev); 648 649 rdev = dev->dev_private; 650 /* if we have active crtcs and we don't have a power ref, 651 take the current one */ 652 if (active && !rdev->have_disp_power_ref) { 653 rdev->have_disp_power_ref = true; 654 return ret; 655 } 656 /* if we have no active crtcs, then drop the power ref 657 we got before */ 658 if (!active && rdev->have_disp_power_ref) { 659 pm_runtime_put_autosuspend(dev->dev); 660 rdev->have_disp_power_ref = false; 661 } 662 663 /* drop the power reference we got coming in here */ 664 pm_runtime_put_autosuspend(dev->dev); 665 return ret; 666} 667 668static const struct drm_crtc_funcs radeon_crtc_funcs = { 669 .cursor_set2 = radeon_crtc_cursor_set2, 670 .cursor_move = radeon_crtc_cursor_move, 671 .gamma_set = radeon_crtc_gamma_set, 672 .set_config = radeon_crtc_set_config, 673 .destroy = radeon_crtc_destroy, 674 .page_flip_target = radeon_crtc_page_flip_target, 675 .get_vblank_counter = radeon_get_vblank_counter_kms, 676 .enable_vblank = radeon_enable_vblank_kms, 677 .disable_vblank = radeon_disable_vblank_kms, 678 .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, 679}; 680 681static void radeon_crtc_init(struct drm_device *dev, int index) 682{ 683 struct radeon_device *rdev = dev->dev_private; 684 struct radeon_crtc *radeon_crtc; 685 686 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); 687 if (radeon_crtc == NULL) 688 return; 689 690 radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0); 691 if (!radeon_crtc->flip_queue) { 692 kfree(radeon_crtc); 693 return; 694 } 695 696 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs); 697 698 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); 699 radeon_crtc->crtc_id = index; 700 rdev->mode_info.crtcs[index] = radeon_crtc; 701 702 if (rdev->family >= CHIP_BONAIRE) { 703 radeon_crtc->max_cursor_width = CIK_CURSOR_WIDTH; 704 radeon_crtc->max_cursor_height = CIK_CURSOR_HEIGHT; 705 } else { 706 radeon_crtc->max_cursor_width = CURSOR_WIDTH; 707 radeon_crtc->max_cursor_height = CURSOR_HEIGHT; 708 } 709 dev->mode_config.cursor_width = radeon_crtc->max_cursor_width; 710 dev->mode_config.cursor_height = radeon_crtc->max_cursor_height; 711 712#if 0 713 radeon_crtc->mode_set.crtc = &radeon_crtc->base; 714 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1); 715 radeon_crtc->mode_set.num_connectors = 0; 716#endif 717 718 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom)) 719 radeon_atombios_init_crtc(dev, radeon_crtc); 720 else 721 radeon_legacy_init_crtc(dev, radeon_crtc); 722} 723 724static const char *encoder_names[38] = { 725 "NONE", 726 "INTERNAL_LVDS", 727 "INTERNAL_TMDS1", 728 "INTERNAL_TMDS2", 729 "INTERNAL_DAC1", 730 "INTERNAL_DAC2", 731 "INTERNAL_SDVOA", 732 "INTERNAL_SDVOB", 733 "SI170B", 734 "CH7303", 735 "CH7301", 736 "INTERNAL_DVO1", 737 "EXTERNAL_SDVOA", 738 "EXTERNAL_SDVOB", 739 "TITFP513", 740 "INTERNAL_LVTM1", 741 "VT1623", 742 "HDMI_SI1930", 743 "HDMI_INTERNAL", 744 "INTERNAL_KLDSCP_TMDS1", 745 "INTERNAL_KLDSCP_DVO1", 746 "INTERNAL_KLDSCP_DAC1", 747 "INTERNAL_KLDSCP_DAC2", 748 "SI178", 749 "MVPU_FPGA", 750 "INTERNAL_DDI", 751 "VT1625", 752 "HDMI_SI1932", 753 "DP_AN9801", 754 "DP_DP501", 755 "INTERNAL_UNIPHY", 756 "INTERNAL_KLDSCP_LVTMA", 757 "INTERNAL_UNIPHY1", 758 "INTERNAL_UNIPHY2", 759 "NUTMEG", 760 "TRAVIS", 761 "INTERNAL_VCE", 762 "INTERNAL_UNIPHY3", 763}; 764 765static const char *hpd_names[6] = { 766 "HPD1", 767 "HPD2", 768 "HPD3", 769 "HPD4", 770 "HPD5", 771 "HPD6", 772}; 773 774static void radeon_print_display_setup(struct drm_device *dev) 775{ 776 struct drm_connector *connector; 777 struct radeon_connector *radeon_connector; 778 struct drm_encoder *encoder; 779 struct radeon_encoder *radeon_encoder; 780 uint32_t devices; 781 int i = 0; 782 783 DRM_INFO("Radeon Display Connectors\n"); 784 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 785 radeon_connector = to_radeon_connector(connector); 786 DRM_INFO("Connector %d:\n", i); 787 DRM_INFO(" %s\n", connector->name); 788 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE) 789 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]); 790 if (radeon_connector->ddc_bus) { 791 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 792 radeon_connector->ddc_bus->rec.mask_clk_reg, 793 radeon_connector->ddc_bus->rec.mask_data_reg, 794 radeon_connector->ddc_bus->rec.a_clk_reg, 795 radeon_connector->ddc_bus->rec.a_data_reg, 796 radeon_connector->ddc_bus->rec.en_clk_reg, 797 radeon_connector->ddc_bus->rec.en_data_reg, 798 radeon_connector->ddc_bus->rec.y_clk_reg, 799 radeon_connector->ddc_bus->rec.y_data_reg); 800 if (radeon_connector->router.ddc_valid) 801 DRM_INFO(" DDC Router 0x%x/0x%x\n", 802 radeon_connector->router.ddc_mux_control_pin, 803 radeon_connector->router.ddc_mux_state); 804 if (radeon_connector->router.cd_valid) 805 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 806 radeon_connector->router.cd_mux_control_pin, 807 radeon_connector->router.cd_mux_state); 808 } else { 809 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 810 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 811 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 812 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 813 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 814 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 815 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n"); 816 } 817 DRM_INFO(" Encoders:\n"); 818 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 819 radeon_encoder = to_radeon_encoder(encoder); 820 devices = radeon_encoder->devices & radeon_connector->devices; 821 if (devices) { 822 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 823 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]); 824 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 825 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]); 826 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 827 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]); 828 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 829 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]); 830 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 831 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]); 832 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 833 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]); 834 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 835 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]); 836 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 837 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]); 838 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 839 DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]); 840 if (devices & ATOM_DEVICE_TV1_SUPPORT) 841 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]); 842 if (devices & ATOM_DEVICE_CV_SUPPORT) 843 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]); 844 } 845 } 846 i++; 847 } 848} 849 850static bool radeon_setup_enc_conn(struct drm_device *dev) 851{ 852 struct radeon_device *rdev = dev->dev_private; 853 bool ret = false; 854 855 if (rdev->bios) { 856 if (rdev->is_atom_bios) { 857 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev); 858 if (!ret) 859 ret = radeon_get_atom_connector_info_from_object_table(dev); 860 } else { 861 ret = radeon_get_legacy_connector_info_from_bios(dev); 862 if (!ret) 863 ret = radeon_get_legacy_connector_info_from_table(dev); 864 } 865 } else { 866 if (!ASIC_IS_AVIVO(rdev)) 867 ret = radeon_get_legacy_connector_info_from_table(dev); 868 } 869 if (ret) { 870 radeon_setup_encoder_clones(dev); 871 radeon_print_display_setup(dev); 872 } 873 874 return ret; 875} 876 877/* avivo */ 878 879/** 880 * avivo_reduce_ratio - fractional number reduction 881 * 882 * @nom: nominator 883 * @den: denominator 884 * @nom_min: minimum value for nominator 885 * @den_min: minimum value for denominator 886 * 887 * Find the greatest common divisor and apply it on both nominator and 888 * denominator, but make nominator and denominator are at least as large 889 * as their minimum values. 890 */ 891static void avivo_reduce_ratio(unsigned *nom, unsigned *den, 892 unsigned nom_min, unsigned den_min) 893{ 894 unsigned tmp; 895 896 /* reduce the numbers to a simpler ratio */ 897 tmp = gcd(*nom, *den); 898 *nom /= tmp; 899 *den /= tmp; 900 901 /* make sure nominator is large enough */ 902 if (*nom < nom_min) { 903 tmp = DIV_ROUND_UP(nom_min, *nom); 904 *nom *= tmp; 905 *den *= tmp; 906 } 907 908 /* make sure the denominator is large enough */ 909 if (*den < den_min) { 910 tmp = DIV_ROUND_UP(den_min, *den); 911 *nom *= tmp; 912 *den *= tmp; 913 } 914} 915 916/** 917 * avivo_get_fb_ref_div - feedback and ref divider calculation 918 * 919 * @nom: nominator 920 * @den: denominator 921 * @post_div: post divider 922 * @fb_div_max: feedback divider maximum 923 * @ref_div_max: reference divider maximum 924 * @fb_div: resulting feedback divider 925 * @ref_div: resulting reference divider 926 * 927 * Calculate feedback and reference divider for a given post divider. Makes 928 * sure we stay within the limits. 929 */ 930static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div, 931 unsigned fb_div_max, unsigned ref_div_max, 932 unsigned *fb_div, unsigned *ref_div) 933{ 934 /* limit reference * post divider to a maximum */ 935 ref_div_max = max(min(100 / post_div, ref_div_max), 1u); 936 937 /* get matching reference and feedback divider */ 938 *ref_div = min(max(den/post_div, 1u), ref_div_max); 939 *fb_div = DIV_ROUND_CLOSEST(nom * *ref_div * post_div, den); 940 941 /* limit fb divider to its maximum */ 942 if (*fb_div > fb_div_max) { 943 *ref_div = (*ref_div * fb_div_max)/(*fb_div); 944 *fb_div = fb_div_max; 945 } 946} 947 948/** 949 * radeon_compute_pll_avivo - compute PLL paramaters 950 * 951 * @pll: information about the PLL 952 * @freq: target frequency 953 * @dot_clock_p: resulting pixel clock 954 * @fb_div_p: resulting feedback divider 955 * @frac_fb_div_p: fractional part of the feedback divider 956 * @ref_div_p: resulting reference divider 957 * @post_div_p: resulting reference divider 958 * 959 * Try to calculate the PLL parameters to generate the given frequency: 960 * dot_clock = (ref_freq * feedback_div) / (ref_div * post_div) 961 */ 962void radeon_compute_pll_avivo(struct radeon_pll *pll, 963 u32 freq, 964 u32 *dot_clock_p, 965 u32 *fb_div_p, 966 u32 *frac_fb_div_p, 967 u32 *ref_div_p, 968 u32 *post_div_p) 969{ 970 unsigned target_clock = pll->flags & RADEON_PLL_USE_FRAC_FB_DIV ? 971 freq : freq / 10; 972 973 unsigned fb_div_min, fb_div_max, fb_div; 974 unsigned post_div_min, post_div_max, post_div; 975 unsigned ref_div_min, ref_div_max, ref_div; 976 unsigned post_div_best, diff_best; 977 unsigned nom, den; 978 979 /* determine allowed feedback divider range */ 980 fb_div_min = pll->min_feedback_div; 981 fb_div_max = pll->max_feedback_div; 982 983 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 984 fb_div_min *= 10; 985 fb_div_max *= 10; 986 } 987 988 /* determine allowed ref divider range */ 989 if (pll->flags & RADEON_PLL_USE_REF_DIV) 990 ref_div_min = pll->reference_div; 991 else 992 ref_div_min = pll->min_ref_div; 993 994 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && 995 pll->flags & RADEON_PLL_USE_REF_DIV) 996 ref_div_max = pll->reference_div; 997 else if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) 998 /* fix for problems on RS880 */ 999 ref_div_max = min(pll->max_ref_div, 7u); 1000 else 1001 ref_div_max = pll->max_ref_div; 1002 1003 /* determine allowed post divider range */ 1004 if (pll->flags & RADEON_PLL_USE_POST_DIV) { 1005 post_div_min = pll->post_div; 1006 post_div_max = pll->post_div; 1007 } else { 1008 unsigned vco_min, vco_max; 1009 1010 if (pll->flags & RADEON_PLL_IS_LCD) { 1011 vco_min = pll->lcd_pll_out_min; 1012 vco_max = pll->lcd_pll_out_max; 1013 } else { 1014 vco_min = pll->pll_out_min; 1015 vco_max = pll->pll_out_max; 1016 } 1017 1018 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1019 vco_min *= 10; 1020 vco_max *= 10; 1021 } 1022 1023 post_div_min = vco_min / target_clock; 1024 if ((target_clock * post_div_min) < vco_min) 1025 ++post_div_min; 1026 if (post_div_min < pll->min_post_div) 1027 post_div_min = pll->min_post_div; 1028 1029 post_div_max = vco_max / target_clock; 1030 if ((target_clock * post_div_max) > vco_max) 1031 --post_div_max; 1032 if (post_div_max > pll->max_post_div) 1033 post_div_max = pll->max_post_div; 1034 } 1035 1036 /* represent the searched ratio as fractional number */ 1037 nom = target_clock; 1038 den = pll->reference_freq; 1039 1040 /* reduce the numbers to a simpler ratio */ 1041 avivo_reduce_ratio(&nom, &den, fb_div_min, post_div_min); 1042 1043 /* now search for a post divider */ 1044 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) 1045 post_div_best = post_div_min; 1046 else 1047 post_div_best = post_div_max; 1048 diff_best = ~0; 1049 1050 for (post_div = post_div_min; post_div <= post_div_max; ++post_div) { 1051 unsigned diff; 1052 avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, 1053 ref_div_max, &fb_div, &ref_div); 1054 diff = abs(target_clock - (pll->reference_freq * fb_div) / 1055 (ref_div * post_div)); 1056 1057 if (diff < diff_best || (diff == diff_best && 1058 !(pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP))) { 1059 1060 post_div_best = post_div; 1061 diff_best = diff; 1062 } 1063 } 1064 post_div = post_div_best; 1065 1066 /* get the feedback and reference divider for the optimal value */ 1067 avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, ref_div_max, 1068 &fb_div, &ref_div); 1069 1070 /* reduce the numbers to a simpler ratio once more */ 1071 /* this also makes sure that the reference divider is large enough */ 1072 avivo_reduce_ratio(&fb_div, &ref_div, fb_div_min, ref_div_min); 1073 1074 /* avoid high jitter with small fractional dividers */ 1075 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && (fb_div % 10)) { 1076 fb_div_min = max(fb_div_min, (9 - (fb_div % 10)) * 20 + 50); 1077 if (fb_div < fb_div_min) { 1078 unsigned tmp = DIV_ROUND_UP(fb_div_min, fb_div); 1079 fb_div *= tmp; 1080 ref_div *= tmp; 1081 } 1082 } 1083 1084 /* and finally save the result */ 1085 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1086 *fb_div_p = fb_div / 10; 1087 *frac_fb_div_p = fb_div % 10; 1088 } else { 1089 *fb_div_p = fb_div; 1090 *frac_fb_div_p = 0; 1091 } 1092 1093 *dot_clock_p = ((pll->reference_freq * *fb_div_p * 10) + 1094 (pll->reference_freq * *frac_fb_div_p)) / 1095 (ref_div * post_div * 10); 1096 *ref_div_p = ref_div; 1097 *post_div_p = post_div; 1098 1099 DRM_DEBUG_KMS("%d - %d, pll dividers - fb: %d.%d ref: %d, post %d\n", 1100 freq, *dot_clock_p * 10, *fb_div_p, *frac_fb_div_p, 1101 ref_div, post_div); 1102} 1103 1104/* pre-avivo */ 1105static inline uint32_t radeon_div(uint64_t n, uint32_t d) 1106{ 1107 n += d / 2; 1108 1109 do_div(n, d); 1110 return n; 1111} 1112 1113void radeon_compute_pll_legacy(struct radeon_pll *pll, 1114 uint64_t freq, 1115 uint32_t *dot_clock_p, 1116 uint32_t *fb_div_p, 1117 uint32_t *frac_fb_div_p, 1118 uint32_t *ref_div_p, 1119 uint32_t *post_div_p) 1120{ 1121 uint32_t min_ref_div = pll->min_ref_div; 1122 uint32_t max_ref_div = pll->max_ref_div; 1123 uint32_t min_post_div = pll->min_post_div; 1124 uint32_t max_post_div = pll->max_post_div; 1125 uint32_t min_fractional_feed_div = 0; 1126 uint32_t max_fractional_feed_div = 0; 1127 uint32_t best_vco = pll->best_vco; 1128 uint32_t best_post_div = 1; 1129 uint32_t best_ref_div = 1; 1130 uint32_t best_feedback_div = 1; 1131 uint32_t best_frac_feedback_div = 0; 1132 uint32_t best_freq = -1; 1133 uint32_t best_error = 0xffffffff; 1134 uint32_t best_vco_diff = 1; 1135 uint32_t post_div; 1136 u32 pll_out_min, pll_out_max; 1137 1138 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); 1139 freq = freq * 1000; 1140 1141 if (pll->flags & RADEON_PLL_IS_LCD) { 1142 pll_out_min = pll->lcd_pll_out_min; 1143 pll_out_max = pll->lcd_pll_out_max; 1144 } else { 1145 pll_out_min = pll->pll_out_min; 1146 pll_out_max = pll->pll_out_max; 1147 } 1148 1149 if (pll_out_min > 64800) 1150 pll_out_min = 64800; 1151 1152 if (pll->flags & RADEON_PLL_USE_REF_DIV) 1153 min_ref_div = max_ref_div = pll->reference_div; 1154 else { 1155 while (min_ref_div < max_ref_div-1) { 1156 uint32_t mid = (min_ref_div + max_ref_div) / 2; 1157 uint32_t pll_in = pll->reference_freq / mid; 1158 if (pll_in < pll->pll_in_min) 1159 max_ref_div = mid; 1160 else if (pll_in > pll->pll_in_max) 1161 min_ref_div = mid; 1162 else 1163 break; 1164 } 1165 } 1166 1167 if (pll->flags & RADEON_PLL_USE_POST_DIV) 1168 min_post_div = max_post_div = pll->post_div; 1169 1170 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1171 min_fractional_feed_div = pll->min_frac_feedback_div; 1172 max_fractional_feed_div = pll->max_frac_feedback_div; 1173 } 1174 1175 for (post_div = max_post_div; post_div >= min_post_div; --post_div) { 1176 uint32_t ref_div; 1177 1178 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1)) 1179 continue; 1180 1181 /* legacy radeons only have a few post_divs */ 1182 if (pll->flags & RADEON_PLL_LEGACY) { 1183 if ((post_div == 5) || 1184 (post_div == 7) || 1185 (post_div == 9) || 1186 (post_div == 10) || 1187 (post_div == 11) || 1188 (post_div == 13) || 1189 (post_div == 14) || 1190 (post_div == 15)) 1191 continue; 1192 } 1193 1194 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) { 1195 uint32_t feedback_div, current_freq = 0, error, vco_diff; 1196 uint32_t pll_in = pll->reference_freq / ref_div; 1197 uint32_t min_feed_div = pll->min_feedback_div; 1198 uint32_t max_feed_div = pll->max_feedback_div + 1; 1199 1200 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max) 1201 continue; 1202 1203 while (min_feed_div < max_feed_div) { 1204 uint32_t vco; 1205 uint32_t min_frac_feed_div = min_fractional_feed_div; 1206 uint32_t max_frac_feed_div = max_fractional_feed_div + 1; 1207 uint32_t frac_feedback_div; 1208 uint64_t tmp; 1209 1210 feedback_div = (min_feed_div + max_feed_div) / 2; 1211 1212 tmp = (uint64_t)pll->reference_freq * feedback_div; 1213 vco = radeon_div(tmp, ref_div); 1214 1215 if (vco < pll_out_min) { 1216 min_feed_div = feedback_div + 1; 1217 continue; 1218 } else if (vco > pll_out_max) { 1219 max_feed_div = feedback_div; 1220 continue; 1221 } 1222 1223 while (min_frac_feed_div < max_frac_feed_div) { 1224 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2; 1225 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div; 1226 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div; 1227 current_freq = radeon_div(tmp, ref_div * post_div); 1228 1229 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) { 1230 if (freq < current_freq) 1231 error = 0xffffffff; 1232 else 1233 error = freq - current_freq; 1234 } else 1235 error = abs(current_freq - freq); 1236 vco_diff = abs(vco - best_vco); 1237 1238 if ((best_vco == 0 && error < best_error) || 1239 (best_vco != 0 && 1240 ((best_error > 100 && error < best_error - 100) || 1241 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) { 1242 best_post_div = post_div; 1243 best_ref_div = ref_div; 1244 best_feedback_div = feedback_div; 1245 best_frac_feedback_div = frac_feedback_div; 1246 best_freq = current_freq; 1247 best_error = error; 1248 best_vco_diff = vco_diff; 1249 } else if (current_freq == freq) { 1250 if (best_freq == -1) { 1251 best_post_div = post_div; 1252 best_ref_div = ref_div; 1253 best_feedback_div = feedback_div; 1254 best_frac_feedback_div = frac_feedback_div; 1255 best_freq = current_freq; 1256 best_error = error; 1257 best_vco_diff = vco_diff; 1258 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || 1259 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || 1260 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || 1261 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || 1262 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || 1263 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) { 1264 best_post_div = post_div; 1265 best_ref_div = ref_div; 1266 best_feedback_div = feedback_div; 1267 best_frac_feedback_div = frac_feedback_div; 1268 best_freq = current_freq; 1269 best_error = error; 1270 best_vco_diff = vco_diff; 1271 } 1272 } 1273 if (current_freq < freq) 1274 min_frac_feed_div = frac_feedback_div + 1; 1275 else 1276 max_frac_feed_div = frac_feedback_div; 1277 } 1278 if (current_freq < freq) 1279 min_feed_div = feedback_div + 1; 1280 else 1281 max_feed_div = feedback_div; 1282 } 1283 } 1284 } 1285 1286 *dot_clock_p = best_freq / 10000; 1287 *fb_div_p = best_feedback_div; 1288 *frac_fb_div_p = best_frac_feedback_div; 1289 *ref_div_p = best_ref_div; 1290 *post_div_p = best_post_div; 1291 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n", 1292 (long long)freq, 1293 best_freq / 1000, best_feedback_div, best_frac_feedback_div, 1294 best_ref_div, best_post_div); 1295 1296} 1297 1298static const struct drm_framebuffer_funcs radeon_fb_funcs = { 1299 .destroy = drm_gem_fb_destroy, 1300 .create_handle = drm_gem_fb_create_handle, 1301}; 1302 1303int 1304radeon_framebuffer_init(struct drm_device *dev, 1305 struct drm_framebuffer *fb, 1306 const struct drm_mode_fb_cmd2 *mode_cmd, 1307 struct drm_gem_object *obj) 1308{ 1309 int ret; 1310 fb->obj[0] = obj; 1311 drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd); 1312 ret = drm_framebuffer_init(dev, fb, &radeon_fb_funcs); 1313 if (ret) { 1314 fb->obj[0] = NULL; 1315 return ret; 1316 } 1317 return 0; 1318} 1319 1320static struct drm_framebuffer * 1321radeon_user_framebuffer_create(struct drm_device *dev, 1322 struct drm_file *file_priv, 1323 const struct drm_mode_fb_cmd2 *mode_cmd) 1324{ 1325 struct drm_gem_object *obj; 1326 struct drm_framebuffer *fb; 1327 int ret; 1328 1329 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 1330 if (obj == NULL) { 1331 dev_err(dev->dev, "No GEM object associated to handle 0x%08X, " 1332 "can't create framebuffer\n", mode_cmd->handles[0]); 1333 return ERR_PTR(-ENOENT); 1334 } 1335 1336 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 1337 if (obj->import_attach) { 1338 DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n"); 1339 drm_gem_object_put(obj); 1340 return ERR_PTR(-EINVAL); 1341 } 1342 1343 fb = kzalloc(sizeof(*fb), GFP_KERNEL); 1344 if (fb == NULL) { 1345 drm_gem_object_put(obj); 1346 return ERR_PTR(-ENOMEM); 1347 } 1348 1349 ret = radeon_framebuffer_init(dev, fb, mode_cmd, obj); 1350 if (ret) { 1351 kfree(fb); 1352 drm_gem_object_put(obj); 1353 return ERR_PTR(ret); 1354 } 1355 1356 return fb; 1357} 1358 1359static const struct drm_mode_config_funcs radeon_mode_funcs = { 1360 .fb_create = radeon_user_framebuffer_create, 1361}; 1362 1363static const struct drm_prop_enum_list radeon_tmds_pll_enum_list[] = 1364{ { 0, "driver" }, 1365 { 1, "bios" }, 1366}; 1367 1368static const struct drm_prop_enum_list radeon_tv_std_enum_list[] = 1369{ { TV_STD_NTSC, "ntsc" }, 1370 { TV_STD_PAL, "pal" }, 1371 { TV_STD_PAL_M, "pal-m" }, 1372 { TV_STD_PAL_60, "pal-60" }, 1373 { TV_STD_NTSC_J, "ntsc-j" }, 1374 { TV_STD_SCART_PAL, "scart-pal" }, 1375 { TV_STD_PAL_CN, "pal-cn" }, 1376 { TV_STD_SECAM, "secam" }, 1377}; 1378 1379static const struct drm_prop_enum_list radeon_underscan_enum_list[] = 1380{ { UNDERSCAN_OFF, "off" }, 1381 { UNDERSCAN_ON, "on" }, 1382 { UNDERSCAN_AUTO, "auto" }, 1383}; 1384 1385static const struct drm_prop_enum_list radeon_audio_enum_list[] = 1386{ { RADEON_AUDIO_DISABLE, "off" }, 1387 { RADEON_AUDIO_ENABLE, "on" }, 1388 { RADEON_AUDIO_AUTO, "auto" }, 1389}; 1390 1391/* XXX support different dither options? spatial, temporal, both, etc. */ 1392static const struct drm_prop_enum_list radeon_dither_enum_list[] = 1393{ { RADEON_FMT_DITHER_DISABLE, "off" }, 1394 { RADEON_FMT_DITHER_ENABLE, "on" }, 1395}; 1396 1397static const struct drm_prop_enum_list radeon_output_csc_enum_list[] = 1398{ { RADEON_OUTPUT_CSC_BYPASS, "bypass" }, 1399 { RADEON_OUTPUT_CSC_TVRGB, "tvrgb" }, 1400 { RADEON_OUTPUT_CSC_YCBCR601, "ycbcr601" }, 1401 { RADEON_OUTPUT_CSC_YCBCR709, "ycbcr709" }, 1402}; 1403 1404static int radeon_modeset_create_props(struct radeon_device *rdev) 1405{ 1406 int sz; 1407 1408 if (rdev->is_atom_bios) { 1409 rdev->mode_info.coherent_mode_property = 1410 drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1); 1411 if (!rdev->mode_info.coherent_mode_property) 1412 return -ENOMEM; 1413 } 1414 1415 if (!ASIC_IS_AVIVO(rdev)) { 1416 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list); 1417 rdev->mode_info.tmds_pll_property = 1418 drm_property_create_enum(rdev->ddev, 0, 1419 "tmds_pll", 1420 radeon_tmds_pll_enum_list, sz); 1421 } 1422 1423 rdev->mode_info.load_detect_property = 1424 drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1); 1425 if (!rdev->mode_info.load_detect_property) 1426 return -ENOMEM; 1427 1428 drm_mode_create_scaling_mode_property(rdev->ddev); 1429 1430 sz = ARRAY_SIZE(radeon_tv_std_enum_list); 1431 rdev->mode_info.tv_std_property = 1432 drm_property_create_enum(rdev->ddev, 0, 1433 "tv standard", 1434 radeon_tv_std_enum_list, sz); 1435 1436 sz = ARRAY_SIZE(radeon_underscan_enum_list); 1437 rdev->mode_info.underscan_property = 1438 drm_property_create_enum(rdev->ddev, 0, 1439 "underscan", 1440 radeon_underscan_enum_list, sz); 1441 1442 rdev->mode_info.underscan_hborder_property = 1443 drm_property_create_range(rdev->ddev, 0, 1444 "underscan hborder", 0, 128); 1445 if (!rdev->mode_info.underscan_hborder_property) 1446 return -ENOMEM; 1447 1448 rdev->mode_info.underscan_vborder_property = 1449 drm_property_create_range(rdev->ddev, 0, 1450 "underscan vborder", 0, 128); 1451 if (!rdev->mode_info.underscan_vborder_property) 1452 return -ENOMEM; 1453 1454 sz = ARRAY_SIZE(radeon_audio_enum_list); 1455 rdev->mode_info.audio_property = 1456 drm_property_create_enum(rdev->ddev, 0, 1457 "audio", 1458 radeon_audio_enum_list, sz); 1459 1460 sz = ARRAY_SIZE(radeon_dither_enum_list); 1461 rdev->mode_info.dither_property = 1462 drm_property_create_enum(rdev->ddev, 0, 1463 "dither", 1464 radeon_dither_enum_list, sz); 1465 1466 sz = ARRAY_SIZE(radeon_output_csc_enum_list); 1467 rdev->mode_info.output_csc_property = 1468 drm_property_create_enum(rdev->ddev, 0, 1469 "output_csc", 1470 radeon_output_csc_enum_list, sz); 1471 1472 return 0; 1473} 1474 1475void radeon_update_display_priority(struct radeon_device *rdev) 1476{ 1477 /* adjustment options for the display watermarks */ 1478 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) { 1479 /* set display priority to high for r3xx, rv515 chips 1480 * this avoids flickering due to underflow to the 1481 * display controllers during heavy acceleration. 1482 * Don't force high on rs4xx igp chips as it seems to 1483 * affect the sound card. See kernel bug 15982. 1484 */ 1485 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) && 1486 !(rdev->flags & RADEON_IS_IGP)) 1487 rdev->disp_priority = 2; 1488 else 1489 rdev->disp_priority = 0; 1490 } else 1491 rdev->disp_priority = radeon_disp_priority; 1492 1493} 1494 1495/* 1496 * Allocate hdmi structs and determine register offsets 1497 */ 1498static void radeon_afmt_init(struct radeon_device *rdev) 1499{ 1500 int i; 1501 1502 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) 1503 rdev->mode_info.afmt[i] = NULL; 1504 1505 if (ASIC_IS_NODCE(rdev)) { 1506 /* nothing to do */ 1507 } else if (ASIC_IS_DCE4(rdev)) { 1508 static uint32_t eg_offsets[] = { 1509 EVERGREEN_CRTC0_REGISTER_OFFSET, 1510 EVERGREEN_CRTC1_REGISTER_OFFSET, 1511 EVERGREEN_CRTC2_REGISTER_OFFSET, 1512 EVERGREEN_CRTC3_REGISTER_OFFSET, 1513 EVERGREEN_CRTC4_REGISTER_OFFSET, 1514 EVERGREEN_CRTC5_REGISTER_OFFSET, 1515 0x13830 - 0x7030, 1516 }; 1517 int num_afmt; 1518 1519 /* DCE8 has 7 audio blocks tied to DIG encoders */ 1520 /* DCE6 has 6 audio blocks tied to DIG encoders */ 1521 /* DCE4/5 has 6 audio blocks tied to DIG encoders */ 1522 /* DCE4.1 has 2 audio blocks tied to DIG encoders */ 1523 if (ASIC_IS_DCE8(rdev)) 1524 num_afmt = 7; 1525 else if (ASIC_IS_DCE6(rdev)) 1526 num_afmt = 6; 1527 else if (ASIC_IS_DCE5(rdev)) 1528 num_afmt = 6; 1529 else if (ASIC_IS_DCE41(rdev)) 1530 num_afmt = 2; 1531 else /* DCE4 */ 1532 num_afmt = 6; 1533 1534 BUG_ON(num_afmt > ARRAY_SIZE(eg_offsets)); 1535 for (i = 0; i < num_afmt; i++) { 1536 rdev->mode_info.afmt[i] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1537 if (rdev->mode_info.afmt[i]) { 1538 rdev->mode_info.afmt[i]->offset = eg_offsets[i]; 1539 rdev->mode_info.afmt[i]->id = i; 1540 } 1541 } 1542 } else if (ASIC_IS_DCE3(rdev)) { 1543 /* DCE3.x has 2 audio blocks tied to DIG encoders */ 1544 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1545 if (rdev->mode_info.afmt[0]) { 1546 rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0; 1547 rdev->mode_info.afmt[0]->id = 0; 1548 } 1549 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1550 if (rdev->mode_info.afmt[1]) { 1551 rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1; 1552 rdev->mode_info.afmt[1]->id = 1; 1553 } 1554 } else if (ASIC_IS_DCE2(rdev)) { 1555 /* DCE2 has at least 1 routable audio block */ 1556 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1557 if (rdev->mode_info.afmt[0]) { 1558 rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0; 1559 rdev->mode_info.afmt[0]->id = 0; 1560 } 1561 /* r6xx has 2 routable audio blocks */ 1562 if (rdev->family >= CHIP_R600) { 1563 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1564 if (rdev->mode_info.afmt[1]) { 1565 rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1; 1566 rdev->mode_info.afmt[1]->id = 1; 1567 } 1568 } 1569 } 1570} 1571 1572static void radeon_afmt_fini(struct radeon_device *rdev) 1573{ 1574 int i; 1575 1576 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) { 1577 kfree(rdev->mode_info.afmt[i]); 1578 rdev->mode_info.afmt[i] = NULL; 1579 } 1580} 1581 1582int radeon_modeset_init(struct radeon_device *rdev) 1583{ 1584 int i; 1585 int ret; 1586 1587 drm_mode_config_init(rdev->ddev); 1588 rdev->mode_info.mode_config_initialized = true; 1589 1590 rdev->ddev->mode_config.funcs = &radeon_mode_funcs; 1591 1592 if (radeon_use_pflipirq == 2 && rdev->family >= CHIP_R600) 1593 rdev->ddev->mode_config.async_page_flip = true; 1594 1595 if (ASIC_IS_DCE5(rdev)) { 1596 rdev->ddev->mode_config.max_width = 16384; 1597 rdev->ddev->mode_config.max_height = 16384; 1598 } else if (ASIC_IS_AVIVO(rdev)) { 1599 rdev->ddev->mode_config.max_width = 8192; 1600 rdev->ddev->mode_config.max_height = 8192; 1601 } else { 1602 rdev->ddev->mode_config.max_width = 4096; 1603 rdev->ddev->mode_config.max_height = 4096; 1604 } 1605 1606 rdev->ddev->mode_config.preferred_depth = 24; 1607 rdev->ddev->mode_config.prefer_shadow = 1; 1608 1609 rdev->ddev->mode_config.fb_modifiers_not_supported = true; 1610 1611 ret = radeon_modeset_create_props(rdev); 1612 if (ret) { 1613 return ret; 1614 } 1615 1616 /* init i2c buses */ 1617 radeon_i2c_init(rdev); 1618 1619 /* check combios for a valid hardcoded EDID - Sun servers */ 1620 if (!rdev->is_atom_bios) { 1621 /* check for hardcoded EDID in BIOS */ 1622 radeon_combios_check_hardcoded_edid(rdev); 1623 } 1624 1625 /* allocate crtcs */ 1626 for (i = 0; i < rdev->num_crtc; i++) { 1627 radeon_crtc_init(rdev->ddev, i); 1628 } 1629 1630 /* okay we should have all the bios connectors */ 1631 ret = radeon_setup_enc_conn(rdev->ddev); 1632 if (!ret) { 1633 return ret; 1634 } 1635 1636 /* init dig PHYs, disp eng pll */ 1637 if (rdev->is_atom_bios) { 1638 radeon_atom_encoder_init(rdev); 1639 radeon_atom_disp_eng_pll_init(rdev); 1640 } 1641 1642 /* initialize hpd */ 1643 radeon_hpd_init(rdev); 1644 1645 /* setup afmt */ 1646 radeon_afmt_init(rdev); 1647 1648 drm_kms_helper_poll_init(rdev->ddev); 1649 1650 /* do pm late init */ 1651 ret = radeon_pm_late_init(rdev); 1652 1653 return 0; 1654} 1655 1656void radeon_modeset_fini(struct radeon_device *rdev) 1657{ 1658 if (rdev->mode_info.mode_config_initialized) { 1659 drm_kms_helper_poll_fini(rdev->ddev); 1660 radeon_hpd_fini(rdev); 1661 drm_helper_force_disable_all(rdev->ddev); 1662 radeon_afmt_fini(rdev); 1663 drm_mode_config_cleanup(rdev->ddev); 1664 rdev->mode_info.mode_config_initialized = false; 1665 } 1666 1667 kfree(rdev->mode_info.bios_hardcoded_edid); 1668 1669 /* free i2c buses */ 1670 radeon_i2c_fini(rdev); 1671} 1672 1673static bool is_hdtv_mode(const struct drm_display_mode *mode) 1674{ 1675 /* try and guess if this is a tv or a monitor */ 1676 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1677 (mode->vdisplay == 576) || /* 576p */ 1678 (mode->vdisplay == 720) || /* 720p */ 1679 (mode->vdisplay == 1080)) /* 1080p */ 1680 return true; 1681 else 1682 return false; 1683} 1684 1685bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1686 const struct drm_display_mode *mode, 1687 struct drm_display_mode *adjusted_mode) 1688{ 1689 struct drm_device *dev = crtc->dev; 1690 struct radeon_device *rdev = dev->dev_private; 1691 struct drm_encoder *encoder; 1692 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 1693 struct radeon_encoder *radeon_encoder; 1694 struct drm_connector *connector; 1695 bool first = true; 1696 u32 src_v = 1, dst_v = 1; 1697 u32 src_h = 1, dst_h = 1; 1698 1699 radeon_crtc->h_border = 0; 1700 radeon_crtc->v_border = 0; 1701 1702 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1703 if (encoder->crtc != crtc) 1704 continue; 1705 radeon_encoder = to_radeon_encoder(encoder); 1706 connector = radeon_get_connector_for_encoder(encoder); 1707 1708 if (first) { 1709 /* set scaling */ 1710 if (radeon_encoder->rmx_type == RMX_OFF) 1711 radeon_crtc->rmx_type = RMX_OFF; 1712 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay || 1713 mode->vdisplay < radeon_encoder->native_mode.vdisplay) 1714 radeon_crtc->rmx_type = radeon_encoder->rmx_type; 1715 else 1716 radeon_crtc->rmx_type = RMX_OFF; 1717 /* copy native mode */ 1718 memcpy(&radeon_crtc->native_mode, 1719 &radeon_encoder->native_mode, 1720 sizeof(struct drm_display_mode)); 1721 src_v = crtc->mode.vdisplay; 1722 dst_v = radeon_crtc->native_mode.vdisplay; 1723 src_h = crtc->mode.hdisplay; 1724 dst_h = radeon_crtc->native_mode.hdisplay; 1725 1726 /* fix up for overscan on hdmi */ 1727 if (ASIC_IS_AVIVO(rdev) && 1728 (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1729 ((radeon_encoder->underscan_type == UNDERSCAN_ON) || 1730 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) && 1731 drm_detect_hdmi_monitor(radeon_connector_edid(connector)) && 1732 is_hdtv_mode(mode)))) { 1733 if (radeon_encoder->underscan_hborder != 0) 1734 radeon_crtc->h_border = radeon_encoder->underscan_hborder; 1735 else 1736 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16; 1737 if (radeon_encoder->underscan_vborder != 0) 1738 radeon_crtc->v_border = radeon_encoder->underscan_vborder; 1739 else 1740 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16; 1741 radeon_crtc->rmx_type = RMX_FULL; 1742 src_v = crtc->mode.vdisplay; 1743 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2); 1744 src_h = crtc->mode.hdisplay; 1745 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2); 1746 } 1747 first = false; 1748 } else { 1749 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) { 1750 /* WARNING: Right now this can't happen but 1751 * in the future we need to check that scaling 1752 * are consistent across different encoder 1753 * (ie all encoder can work with the same 1754 * scaling). 1755 */ 1756 DRM_ERROR("Scaling not consistent across encoder.\n"); 1757 return false; 1758 } 1759 } 1760 } 1761 if (radeon_crtc->rmx_type != RMX_OFF) { 1762 fixed20_12 a, b; 1763 a.full = dfixed_const(src_v); 1764 b.full = dfixed_const(dst_v); 1765 radeon_crtc->vsc.full = dfixed_div(a, b); 1766 a.full = dfixed_const(src_h); 1767 b.full = dfixed_const(dst_h); 1768 radeon_crtc->hsc.full = dfixed_div(a, b); 1769 } else { 1770 radeon_crtc->vsc.full = dfixed_const(1); 1771 radeon_crtc->hsc.full = dfixed_const(1); 1772 } 1773 return true; 1774} 1775 1776/* 1777 * Retrieve current video scanout position of crtc on a given gpu, and 1778 * an optional accurate timestamp of when query happened. 1779 * 1780 * \param dev Device to query. 1781 * \param crtc Crtc to query. 1782 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 1783 * For driver internal use only also supports these flags: 1784 * 1785 * USE_REAL_VBLANKSTART to use the real start of vblank instead 1786 * of a fudged earlier start of vblank. 1787 * 1788 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 1789 * fudged earlier start of vblank in *vpos and the distance 1790 * to true start of vblank in *hpos. 1791 * 1792 * \param *vpos Location where vertical scanout position should be stored. 1793 * \param *hpos Location where horizontal scanout position should go. 1794 * \param *stime Target location for timestamp taken immediately before 1795 * scanout position query. Can be NULL to skip timestamp. 1796 * \param *etime Target location for timestamp taken immediately after 1797 * scanout position query. Can be NULL to skip timestamp. 1798 * 1799 * Returns vpos as a positive number while in active scanout area. 1800 * Returns vpos as a negative number inside vblank, counting the number 1801 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1802 * until start of active scanout / end of vblank." 1803 * 1804 * \return Flags, or'ed together as follows: 1805 * 1806 * DRM_SCANOUTPOS_VALID = Query successful. 1807 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1808 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1809 * this flag means that returned position may be offset by a constant but 1810 * unknown small number of scanlines wrt. real scanout position. 1811 * 1812 */ 1813int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe, 1814 unsigned int flags, int *vpos, int *hpos, 1815 ktime_t *stime, ktime_t *etime, 1816 const struct drm_display_mode *mode) 1817{ 1818 u32 stat_crtc = 0, vbl = 0, position = 0; 1819 int vbl_start, vbl_end, vtotal, ret = 0; 1820 bool in_vbl = true; 1821 1822 struct radeon_device *rdev = dev->dev_private; 1823 1824 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1825 1826 /* Get optional system timestamp before query. */ 1827 if (stime) 1828 *stime = ktime_get(); 1829 1830 if (ASIC_IS_DCE4(rdev)) { 1831 if (pipe == 0) { 1832 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1833 EVERGREEN_CRTC0_REGISTER_OFFSET); 1834 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1835 EVERGREEN_CRTC0_REGISTER_OFFSET); 1836 ret |= DRM_SCANOUTPOS_VALID; 1837 } 1838 if (pipe == 1) { 1839 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1840 EVERGREEN_CRTC1_REGISTER_OFFSET); 1841 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1842 EVERGREEN_CRTC1_REGISTER_OFFSET); 1843 ret |= DRM_SCANOUTPOS_VALID; 1844 } 1845 if (pipe == 2) { 1846 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1847 EVERGREEN_CRTC2_REGISTER_OFFSET); 1848 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1849 EVERGREEN_CRTC2_REGISTER_OFFSET); 1850 ret |= DRM_SCANOUTPOS_VALID; 1851 } 1852 if (pipe == 3) { 1853 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1854 EVERGREEN_CRTC3_REGISTER_OFFSET); 1855 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1856 EVERGREEN_CRTC3_REGISTER_OFFSET); 1857 ret |= DRM_SCANOUTPOS_VALID; 1858 } 1859 if (pipe == 4) { 1860 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1861 EVERGREEN_CRTC4_REGISTER_OFFSET); 1862 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1863 EVERGREEN_CRTC4_REGISTER_OFFSET); 1864 ret |= DRM_SCANOUTPOS_VALID; 1865 } 1866 if (pipe == 5) { 1867 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1868 EVERGREEN_CRTC5_REGISTER_OFFSET); 1869 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1870 EVERGREEN_CRTC5_REGISTER_OFFSET); 1871 ret |= DRM_SCANOUTPOS_VALID; 1872 } 1873 } else if (ASIC_IS_AVIVO(rdev)) { 1874 if (pipe == 0) { 1875 vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END); 1876 position = RREG32(AVIVO_D1CRTC_STATUS_POSITION); 1877 ret |= DRM_SCANOUTPOS_VALID; 1878 } 1879 if (pipe == 1) { 1880 vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END); 1881 position = RREG32(AVIVO_D2CRTC_STATUS_POSITION); 1882 ret |= DRM_SCANOUTPOS_VALID; 1883 } 1884 } else { 1885 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */ 1886 if (pipe == 0) { 1887 /* Assume vbl_end == 0, get vbl_start from 1888 * upper 16 bits. 1889 */ 1890 vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) & 1891 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1892 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */ 1893 position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1894 stat_crtc = RREG32(RADEON_CRTC_STATUS); 1895 if (!(stat_crtc & 1)) 1896 in_vbl = false; 1897 1898 ret |= DRM_SCANOUTPOS_VALID; 1899 } 1900 if (pipe == 1) { 1901 vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) & 1902 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1903 position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1904 stat_crtc = RREG32(RADEON_CRTC2_STATUS); 1905 if (!(stat_crtc & 1)) 1906 in_vbl = false; 1907 1908 ret |= DRM_SCANOUTPOS_VALID; 1909 } 1910 } 1911 1912 /* Get optional system timestamp after query. */ 1913 if (etime) 1914 *etime = ktime_get(); 1915 1916 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1917 1918 /* Decode into vertical and horizontal scanout position. */ 1919 *vpos = position & 0x1fff; 1920 *hpos = (position >> 16) & 0x1fff; 1921 1922 /* Valid vblank area boundaries from gpu retrieved? */ 1923 if (vbl > 0) { 1924 /* Yes: Decode. */ 1925 ret |= DRM_SCANOUTPOS_ACCURATE; 1926 vbl_start = vbl & 0x1fff; 1927 vbl_end = (vbl >> 16) & 0x1fff; 1928 } 1929 else { 1930 /* No: Fake something reasonable which gives at least ok results. */ 1931 vbl_start = mode->crtc_vdisplay; 1932 vbl_end = 0; 1933 } 1934 1935 /* Called from driver internal vblank counter query code? */ 1936 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1937 /* Caller wants distance from real vbl_start in *hpos */ 1938 *hpos = *vpos - vbl_start; 1939 } 1940 1941 /* Fudge vblank to start a few scanlines earlier to handle the 1942 * problem that vblank irqs fire a few scanlines before start 1943 * of vblank. Some driver internal callers need the true vblank 1944 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 1945 * 1946 * The cause of the "early" vblank irq is that the irq is triggered 1947 * by the line buffer logic when the line buffer read position enters 1948 * the vblank, whereas our crtc scanout position naturally lags the 1949 * line buffer read position. 1950 */ 1951 if (!(flags & USE_REAL_VBLANKSTART)) 1952 vbl_start -= rdev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 1953 1954 /* Test scanout position against vblank region. */ 1955 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1956 in_vbl = false; 1957 1958 /* In vblank? */ 1959 if (in_vbl) 1960 ret |= DRM_SCANOUTPOS_IN_VBLANK; 1961 1962 /* Called from driver internal vblank counter query code? */ 1963 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1964 /* Caller wants distance from fudged earlier vbl_start */ 1965 *vpos -= vbl_start; 1966 return ret; 1967 } 1968 1969 /* Check if inside vblank area and apply corrective offsets: 1970 * vpos will then be >=0 in video scanout area, but negative 1971 * within vblank area, counting down the number of lines until 1972 * start of scanout. 1973 */ 1974 1975 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1976 if (in_vbl && (*vpos >= vbl_start)) { 1977 vtotal = mode->crtc_vtotal; 1978 *vpos = *vpos - vtotal; 1979 } 1980 1981 /* Correct for shifted end of vbl at vbl_end. */ 1982 *vpos = *vpos - vbl_end; 1983 1984 return ret; 1985} 1986 1987bool 1988radeon_get_crtc_scanout_position(struct drm_crtc *crtc, 1989 bool in_vblank_irq, int *vpos, int *hpos, 1990 ktime_t *stime, ktime_t *etime, 1991 const struct drm_display_mode *mode) 1992{ 1993 struct drm_device *dev = crtc->dev; 1994 unsigned int pipe = crtc->index; 1995 1996 return radeon_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos, 1997 stime, etime, mode); 1998} 1999