1 /* $NetBSD: radeon_display.c,v 1.12 2021/12/18 23:45:43 riastradh Exp $ */ 2 3 /* 4 * Copyright 2007-8 Advanced Micro Devices, Inc. 5 * Copyright 2008 Red Hat Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: Dave Airlie 26 * Alex Deucher 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: radeon_display.c,v 1.12 2021/12/18 23:45:43 riastradh Exp $"); 31 32 #include <linux/pci.h> 33 #include <linux/pm_runtime.h> 34 #include <linux/gcd.h> 35 36 #include <asm/div64.h> 37 38 #include <drm/drm_crtc_helper.h> 39 #include <drm/drm_device.h> 40 #include <drm/drm_drv.h> 41 #include <drm/drm_edid.h> 42 #include <drm/drm_fb_helper.h> 43 #include <drm/drm_fourcc.h> 44 #include <drm/drm_gem_framebuffer_helper.h> 45 #include <drm/drm_plane_helper.h> 46 #include <drm/drm_probe_helper.h> 47 #include <drm/drm_vblank.h> 48 #include <drm/radeon_drm.h> 49 50 #include "atom.h" 51 #include "radeon.h" 52 53 static void avivo_crtc_load_lut(struct drm_crtc *crtc) 54 { 55 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 56 struct drm_device *dev = crtc->dev; 57 struct radeon_device *rdev = dev->dev_private; 58 u16 *r, *g, *b; 59 int i; 60 61 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 62 WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0); 63 64 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 65 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 66 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 67 68 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 69 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 70 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 71 72 WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id); 73 WREG32(AVIVO_DC_LUT_RW_MODE, 0); 74 WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f); 75 76 WREG8(AVIVO_DC_LUT_RW_INDEX, 0); 77 r = crtc->gamma_store; 78 g = r + crtc->gamma_size; 79 b = g + crtc->gamma_size; 80 for (i = 0; i < 256; i++) { 81 WREG32(AVIVO_DC_LUT_30_COLOR, 82 ((*r++ & 0xffc0) << 14) | 83 ((*g++ & 0xffc0) << 4) | 84 (*b++ >> 6)); 85 } 86 87 /* Only change bit 0 of LUT_SEL, other bits are set elsewhere */ 88 WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id, ~1); 89 } 90 91 static void dce4_crtc_load_lut(struct drm_crtc *crtc) 92 { 93 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 94 struct drm_device *dev = crtc->dev; 95 struct radeon_device *rdev = dev->dev_private; 96 u16 *r, *g, *b; 97 int i; 98 99 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 100 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0); 101 102 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 103 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 104 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 105 106 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 107 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 108 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 109 110 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0); 111 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007); 112 113 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0); 114 r = crtc->gamma_store; 115 g = r + crtc->gamma_size; 116 b = g + crtc->gamma_size; 117 for (i = 0; i < 256; i++) { 118 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset, 119 ((*r++ & 0xffc0) << 14) | 120 ((*g++ & 0xffc0) << 4) | 121 (*b++ >> 6)); 122 } 123 } 124 125 static void dce5_crtc_load_lut(struct drm_crtc *crtc) 126 { 127 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 128 struct drm_device *dev = crtc->dev; 129 struct radeon_device *rdev = dev->dev_private; 130 u16 *r, *g, *b; 131 int i; 132 133 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); 134 135 msleep(10); 136 137 WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset, 138 (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) | 139 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS))); 140 WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset, 141 NI_GRPH_PRESCALE_BYPASS); 142 WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset, 143 NI_OVL_PRESCALE_BYPASS); 144 WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset, 145 (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) | 146 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT))); 147 148 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0); 149 150 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0); 151 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0); 152 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0); 153 154 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff); 155 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff); 156 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff); 157 158 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0); 159 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007); 160 161 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0); 162 r = crtc->gamma_store; 163 g = r + crtc->gamma_size; 164 b = g + crtc->gamma_size; 165 for (i = 0; i < 256; i++) { 166 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset, 167 ((*r++ & 0xffc0) << 14) | 168 ((*g++ & 0xffc0) << 4) | 169 (*b++ >> 6)); 170 } 171 172 WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset, 173 (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 174 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 175 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) | 176 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS))); 177 WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset, 178 (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) | 179 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS))); 180 WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset, 181 (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) | 182 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS))); 183 WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset, 184 (NI_OUTPUT_CSC_GRPH_MODE(radeon_crtc->output_csc) | 185 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS))); 186 /* XXX match this to the depth of the crtc fmt block, move to modeset? */ 187 WREG32(0x6940 + radeon_crtc->crtc_offset, 0); 188 if (ASIC_IS_DCE8(rdev)) { 189 /* XXX this only needs to be programmed once per crtc at startup, 190 * not sure where the best place for it is 191 */ 192 WREG32(CIK_ALPHA_CONTROL + radeon_crtc->crtc_offset, 193 CIK_CURSOR_ALPHA_BLND_ENA); 194 } 195 } 196 197 static void legacy_crtc_load_lut(struct drm_crtc *crtc) 198 { 199 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 200 struct drm_device *dev = crtc->dev; 201 struct radeon_device *rdev = dev->dev_private; 202 u16 *r, *g, *b; 203 int i; 204 uint32_t dac2_cntl; 205 206 dac2_cntl = RREG32(RADEON_DAC_CNTL2); 207 if (radeon_crtc->crtc_id == 0) 208 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL; 209 else 210 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL; 211 WREG32(RADEON_DAC_CNTL2, dac2_cntl); 212 213 WREG8(RADEON_PALETTE_INDEX, 0); 214 r = crtc->gamma_store; 215 g = r + crtc->gamma_size; 216 b = g + crtc->gamma_size; 217 for (i = 0; i < 256; i++) { 218 WREG32(RADEON_PALETTE_30_DATA, 219 ((*r++ & 0xffc0) << 14) | 220 ((*g++ & 0xffc0) << 4) | 221 (*b++ >> 6)); 222 } 223 } 224 225 void radeon_crtc_load_lut(struct drm_crtc *crtc) 226 { 227 struct drm_device *dev = crtc->dev; 228 struct radeon_device *rdev = dev->dev_private; 229 230 if (!crtc->enabled) 231 return; 232 233 if (ASIC_IS_DCE5(rdev)) 234 dce5_crtc_load_lut(crtc); 235 else if (ASIC_IS_DCE4(rdev)) 236 dce4_crtc_load_lut(crtc); 237 else if (ASIC_IS_AVIVO(rdev)) 238 avivo_crtc_load_lut(crtc); 239 else 240 legacy_crtc_load_lut(crtc); 241 } 242 243 static int radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green, 244 u16 *blue, uint32_t size, 245 struct drm_modeset_acquire_ctx *ctx) 246 { 247 radeon_crtc_load_lut(crtc); 248 249 return 0; 250 } 251 252 static void radeon_crtc_destroy(struct drm_crtc *crtc) 253 { 254 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 255 256 drm_crtc_cleanup(crtc); 257 destroy_workqueue(radeon_crtc->flip_queue); 258 kfree(radeon_crtc); 259 } 260 261 /** 262 * radeon_unpin_work_func - unpin old buffer object 263 * 264 * @__work - kernel work item 265 * 266 * Unpin the old frame buffer object outside of the interrupt handler 267 */ 268 static void radeon_unpin_work_func(struct work_struct *__work) 269 { 270 struct radeon_flip_work *work = 271 container_of(__work, struct radeon_flip_work, unpin_work); 272 int r; 273 274 /* unpin of the old buffer */ 275 r = radeon_bo_reserve(work->old_rbo, false); 276 if (likely(r == 0)) { 277 r = radeon_bo_unpin(work->old_rbo); 278 if (unlikely(r != 0)) { 279 DRM_ERROR("failed to unpin buffer after flip\n"); 280 } 281 radeon_bo_unreserve(work->old_rbo); 282 } else 283 DRM_ERROR("failed to reserve buffer after flip\n"); 284 285 drm_gem_object_put_unlocked(&work->old_rbo->tbo.base); 286 kfree(work); 287 } 288 289 void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) 290 { 291 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; 292 unsigned long flags; 293 u32 update_pending; 294 int vpos, hpos; 295 296 /* can happen during initialization */ 297 if (radeon_crtc == NULL) 298 return; 299 300 /* Skip the pageflip completion check below (based on polling) on 301 * asics which reliably support hw pageflip completion irqs. pflip 302 * irqs are a reliable and race-free method of handling pageflip 303 * completion detection. A use_pflipirq module parameter < 2 allows 304 * to override this in case of asics with faulty pflip irqs. 305 * A module parameter of 0 would only use this polling based path, 306 * a parameter of 1 would use pflip irq only as a backup to this 307 * path, as in Linux 3.16. 308 */ 309 if ((radeon_use_pflipirq == 2) && ASIC_IS_DCE4(rdev)) 310 return; 311 312 spin_lock_irqsave(&rdev->ddev->event_lock, flags); 313 if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { 314 DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " 315 "RADEON_FLIP_SUBMITTED(%d)\n", 316 radeon_crtc->flip_status, 317 RADEON_FLIP_SUBMITTED); 318 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 319 return; 320 } 321 322 update_pending = radeon_page_flip_pending(rdev, crtc_id); 323 324 /* Has the pageflip already completed in crtc, or is it certain 325 * to complete in this vblank? GET_DISTANCE_TO_VBLANKSTART provides 326 * distance to start of "fudged earlier" vblank in vpos, distance to 327 * start of real vblank in hpos. vpos >= 0 && hpos < 0 means we are in 328 * the last few scanlines before start of real vblank, where the vblank 329 * irq can fire, so we have sampled update_pending a bit too early and 330 * know the flip will complete at leading edge of the upcoming real 331 * vblank. On pre-AVIVO hardware, flips also complete inside the real 332 * vblank, not only at leading edge, so if update_pending for hpos >= 0 333 * == inside real vblank, the flip will complete almost immediately. 334 * Note that this method of completion handling is still not 100% race 335 * free, as we could execute before the radeon_flip_work_func managed 336 * to run and set the RADEON_FLIP_SUBMITTED status, thereby we no-op, 337 * but the flip still gets programmed into hw and completed during 338 * vblank, leading to a delayed emission of the flip completion event. 339 * This applies at least to pre-AVIVO hardware, where flips are always 340 * completing inside vblank, not only at leading edge of vblank. 341 */ 342 if (update_pending && 343 (DRM_SCANOUTPOS_VALID & 344 radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id, 345 GET_DISTANCE_TO_VBLANKSTART, 346 &vpos, &hpos, NULL, NULL, 347 &rdev->mode_info.crtcs[crtc_id]->base.hwmode)) && 348 ((vpos >= 0 && hpos < 0) || (hpos >= 0 && !ASIC_IS_AVIVO(rdev)))) { 349 /* crtc didn't flip in this target vblank interval, 350 * but flip is pending in crtc. Based on the current 351 * scanout position we know that the current frame is 352 * (nearly) complete and the flip will (likely) 353 * complete before the start of the next frame. 354 */ 355 update_pending = 0; 356 } 357 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 358 if (!update_pending) 359 radeon_crtc_handle_flip(rdev, crtc_id); 360 } 361 362 /** 363 * radeon_crtc_handle_flip - page flip completed 364 * 365 * @rdev: radeon device pointer 366 * @crtc_id: crtc number this event is for 367 * 368 * Called when we are sure that a page flip for this crtc is completed. 369 */ 370 void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) 371 { 372 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; 373 struct radeon_flip_work *work; 374 unsigned long flags; 375 376 /* this can happen at init */ 377 if (radeon_crtc == NULL) 378 return; 379 380 spin_lock_irqsave(&rdev->ddev->event_lock, flags); 381 work = radeon_crtc->flip_work; 382 if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { 383 DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " 384 "RADEON_FLIP_SUBMITTED(%d)\n", 385 radeon_crtc->flip_status, 386 RADEON_FLIP_SUBMITTED); 387 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 388 return; 389 } 390 391 /* Pageflip completed. Clean up. */ 392 radeon_crtc->flip_status = RADEON_FLIP_NONE; 393 radeon_crtc->flip_work = NULL; 394 395 /* wakeup userspace */ 396 if (work->event) 397 drm_crtc_send_vblank_event(&radeon_crtc->base, work->event); 398 399 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); 400 401 drm_crtc_vblank_put(&radeon_crtc->base); 402 radeon_irq_kms_pflip_irq_put(rdev, work->crtc_id); 403 queue_work(radeon_crtc->flip_queue, &work->unpin_work); 404 } 405 406 /** 407 * radeon_flip_work_func - page flip framebuffer 408 * 409 * @work - kernel work item 410 * 411 * Wait for the buffer object to become idle and do the actual page flip 412 */ 413 static void radeon_flip_work_func(struct work_struct *__work) 414 { 415 struct radeon_flip_work *work = 416 container_of(__work, struct radeon_flip_work, flip_work); 417 struct radeon_device *rdev = work->rdev; 418 struct drm_device *dev = rdev->ddev; 419 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[work->crtc_id]; 420 421 struct drm_crtc *crtc = &radeon_crtc->base; 422 unsigned long flags; 423 int r; 424 int vpos, hpos; 425 426 down_read(&rdev->exclusive_lock); 427 if (work->fence) { 428 struct radeon_fence *fence; 429 430 fence = to_radeon_fence(work->fence); 431 if (fence && fence->rdev == rdev) { 432 r = radeon_fence_wait(fence, false); 433 if (r == -EDEADLK) { 434 up_read(&rdev->exclusive_lock); 435 do { 436 r = radeon_gpu_reset(rdev); 437 } while (r == -EAGAIN); 438 down_read(&rdev->exclusive_lock); 439 } 440 } else 441 r = dma_fence_wait(work->fence, false); 442 443 if (r) 444 DRM_ERROR("failed to wait on page flip fence (%d)!\n", r); 445 446 /* We continue with the page flip even if we failed to wait on 447 * the fence, otherwise the DRM core and userspace will be 448 * confused about which BO the CRTC is scanning out 449 */ 450 451 dma_fence_put(work->fence); 452 work->fence = NULL; 453 } 454 455 /* Wait until we're out of the vertical blank period before the one 456 * targeted by the flip. Always wait on pre DCE4 to avoid races with 457 * flip completion handling from vblank irq, as these old asics don't 458 * have reliable pageflip completion interrupts. 459 */ 460 while (radeon_crtc->enabled && 461 (radeon_get_crtc_scanoutpos(dev, work->crtc_id, 0, 462 &vpos, &hpos, NULL, NULL, 463 &crtc->hwmode) 464 & (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) == 465 (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) && 466 (!ASIC_IS_AVIVO(rdev) || 467 ((int) (work->target_vblank - 468 dev->driver->get_vblank_counter(dev, work->crtc_id)) > 0))) 469 usleep_range(1000, 2000); 470 471 /* We borrow the event spin lock for protecting flip_status */ 472 spin_lock_irqsave(&crtc->dev->event_lock, flags); 473 474 /* set the proper interrupt */ 475 radeon_irq_kms_pflip_irq_get(rdev, radeon_crtc->crtc_id); 476 477 /* do the flip (mmio) */ 478 radeon_page_flip(rdev, radeon_crtc->crtc_id, work->base, work->async); 479 480 radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED; 481 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 482 up_read(&rdev->exclusive_lock); 483 } 484 485 static int radeon_crtc_page_flip_target(struct drm_crtc *crtc, 486 struct drm_framebuffer *fb, 487 struct drm_pending_vblank_event *event, 488 uint32_t page_flip_flags, 489 uint32_t target, 490 struct drm_modeset_acquire_ctx *ctx) 491 { 492 struct drm_device *dev = crtc->dev; 493 struct radeon_device *rdev = dev->dev_private; 494 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 495 struct drm_gem_object *obj; 496 struct radeon_flip_work *work; 497 struct radeon_bo *new_rbo; 498 uint32_t tiling_flags, pitch_pixels; 499 uint64_t base; 500 unsigned long flags; 501 int r; 502 503 work = kzalloc(sizeof *work, GFP_KERNEL); 504 if (work == NULL) 505 return -ENOMEM; 506 507 INIT_WORK(&work->flip_work, radeon_flip_work_func); 508 INIT_WORK(&work->unpin_work, radeon_unpin_work_func); 509 510 work->rdev = rdev; 511 work->crtc_id = radeon_crtc->crtc_id; 512 work->event = event; 513 work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0; 514 515 /* schedule unpin of the old buffer */ 516 obj = crtc->primary->fb->obj[0]; 517 518 /* take a reference to the old object */ 519 drm_gem_object_get(obj); 520 work->old_rbo = gem_to_radeon_bo(obj); 521 522 obj = fb->obj[0]; 523 new_rbo = gem_to_radeon_bo(obj); 524 525 /* pin the new buffer */ 526 DRM_DEBUG_DRIVER("flip-ioctl() cur_rbo = %p, new_rbo = %p\n", 527 work->old_rbo, new_rbo); 528 529 r = radeon_bo_reserve(new_rbo, false); 530 if (unlikely(r != 0)) { 531 DRM_ERROR("failed to reserve new rbo buffer before flip\n"); 532 goto cleanup; 533 } 534 /* Only 27 bit offset for legacy CRTC */ 535 r = radeon_bo_pin_restricted(new_rbo, RADEON_GEM_DOMAIN_VRAM, 536 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, &base); 537 if (unlikely(r != 0)) { 538 radeon_bo_unreserve(new_rbo); 539 r = -EINVAL; 540 DRM_ERROR("failed to pin new rbo buffer before flip\n"); 541 goto cleanup; 542 } 543 work->fence = dma_fence_get(dma_resv_get_excl(new_rbo->tbo.base.resv)); 544 radeon_bo_get_tiling_flags(new_rbo, &tiling_flags, NULL); 545 radeon_bo_unreserve(new_rbo); 546 547 if (!ASIC_IS_AVIVO(rdev)) { 548 /* crtc offset is from display base addr not FB location */ 549 base -= radeon_crtc->legacy_display_base_addr; 550 pitch_pixels = fb->pitches[0] / fb->format->cpp[0]; 551 552 if (tiling_flags & RADEON_TILING_MACRO) { 553 if (ASIC_IS_R300(rdev)) { 554 base &= ~0x7ff; 555 } else { 556 int byteshift = fb->format->cpp[0] * 8 >> 4; 557 int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11; 558 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8); 559 } 560 } else { 561 int offset = crtc->y * pitch_pixels + crtc->x; 562 switch (fb->format->cpp[0] * 8) { 563 case 8: 564 default: 565 offset *= 1; 566 break; 567 case 15: 568 case 16: 569 offset *= 2; 570 break; 571 case 24: 572 offset *= 3; 573 break; 574 case 32: 575 offset *= 4; 576 break; 577 } 578 base += offset; 579 } 580 base &= ~7; 581 } 582 work->base = base; 583 work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) + 584 dev->driver->get_vblank_counter(dev, work->crtc_id); 585 586 /* We borrow the event spin lock for protecting flip_work */ 587 spin_lock_irqsave(&crtc->dev->event_lock, flags); 588 589 if (radeon_crtc->flip_status != RADEON_FLIP_NONE) { 590 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); 591 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 592 r = -EBUSY; 593 goto pflip_cleanup; 594 } 595 radeon_crtc->flip_status = RADEON_FLIP_PENDING; 596 radeon_crtc->flip_work = work; 597 598 /* update crtc fb */ 599 crtc->primary->fb = fb; 600 601 spin_unlock_irqrestore(&crtc->dev->event_lock, flags); 602 603 queue_work(radeon_crtc->flip_queue, &work->flip_work); 604 return 0; 605 606 pflip_cleanup: 607 if (unlikely(radeon_bo_reserve(new_rbo, false) != 0)) { 608 DRM_ERROR("failed to reserve new rbo in error path\n"); 609 goto cleanup; 610 } 611 if (unlikely(radeon_bo_unpin(new_rbo) != 0)) { 612 DRM_ERROR("failed to unpin new rbo in error path\n"); 613 } 614 radeon_bo_unreserve(new_rbo); 615 616 cleanup: 617 drm_gem_object_put_unlocked(&work->old_rbo->tbo.base); 618 dma_fence_put(work->fence); 619 kfree(work); 620 return r; 621 } 622 623 static int 624 radeon_crtc_set_config(struct drm_mode_set *set, 625 struct drm_modeset_acquire_ctx *ctx) 626 { 627 struct drm_device *dev; 628 struct radeon_device *rdev; 629 struct drm_crtc *crtc; 630 bool active = false; 631 int ret; 632 633 if (!set || !set->crtc) 634 return -EINVAL; 635 636 dev = set->crtc->dev; 637 638 ret = pm_runtime_get_sync(dev->dev); 639 if (ret < 0) 640 return ret; 641 642 ret = drm_crtc_helper_set_config(set, ctx); 643 644 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 645 if (crtc->enabled) 646 active = true; 647 648 pm_runtime_mark_last_busy(dev->dev); 649 650 rdev = dev->dev_private; 651 /* if we have active crtcs and we don't have a power ref, 652 take the current one */ 653 if (active && !rdev->have_disp_power_ref) { 654 rdev->have_disp_power_ref = true; 655 return ret; 656 } 657 /* if we have no active crtcs, then drop the power ref 658 we got before */ 659 if (!active && rdev->have_disp_power_ref) { 660 pm_runtime_put_autosuspend(dev->dev); 661 rdev->have_disp_power_ref = false; 662 } 663 664 /* drop the power reference we got coming in here */ 665 pm_runtime_put_autosuspend(dev->dev); 666 return ret; 667 } 668 669 static const struct drm_crtc_funcs radeon_crtc_funcs = { 670 .cursor_set2 = radeon_crtc_cursor_set2, 671 .cursor_move = radeon_crtc_cursor_move, 672 .gamma_set = radeon_crtc_gamma_set, 673 .set_config = radeon_crtc_set_config, 674 .destroy = radeon_crtc_destroy, 675 .page_flip_target = radeon_crtc_page_flip_target, 676 }; 677 678 static void radeon_crtc_init(struct drm_device *dev, int index) 679 { 680 struct radeon_device *rdev = dev->dev_private; 681 struct radeon_crtc *radeon_crtc; 682 683 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL); 684 if (radeon_crtc == NULL) 685 return; 686 687 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs); 688 689 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256); 690 radeon_crtc->crtc_id = index; 691 radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0); 692 rdev->mode_info.crtcs[index] = radeon_crtc; 693 694 if (rdev->family >= CHIP_BONAIRE) { 695 radeon_crtc->max_cursor_width = CIK_CURSOR_WIDTH; 696 radeon_crtc->max_cursor_height = CIK_CURSOR_HEIGHT; 697 } else { 698 radeon_crtc->max_cursor_width = CURSOR_WIDTH; 699 radeon_crtc->max_cursor_height = CURSOR_HEIGHT; 700 } 701 dev->mode_config.cursor_width = radeon_crtc->max_cursor_width; 702 dev->mode_config.cursor_height = radeon_crtc->max_cursor_height; 703 704 #if 0 705 radeon_crtc->mode_set.crtc = &radeon_crtc->base; 706 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1); 707 radeon_crtc->mode_set.num_connectors = 0; 708 #endif 709 710 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom)) 711 radeon_atombios_init_crtc(dev, radeon_crtc); 712 else 713 radeon_legacy_init_crtc(dev, radeon_crtc); 714 } 715 716 static const char *encoder_names[38] = { 717 "NONE", 718 "INTERNAL_LVDS", 719 "INTERNAL_TMDS1", 720 "INTERNAL_TMDS2", 721 "INTERNAL_DAC1", 722 "INTERNAL_DAC2", 723 "INTERNAL_SDVOA", 724 "INTERNAL_SDVOB", 725 "SI170B", 726 "CH7303", 727 "CH7301", 728 "INTERNAL_DVO1", 729 "EXTERNAL_SDVOA", 730 "EXTERNAL_SDVOB", 731 "TITFP513", 732 "INTERNAL_LVTM1", 733 "VT1623", 734 "HDMI_SI1930", 735 "HDMI_INTERNAL", 736 "INTERNAL_KLDSCP_TMDS1", 737 "INTERNAL_KLDSCP_DVO1", 738 "INTERNAL_KLDSCP_DAC1", 739 "INTERNAL_KLDSCP_DAC2", 740 "SI178", 741 "MVPU_FPGA", 742 "INTERNAL_DDI", 743 "VT1625", 744 "HDMI_SI1932", 745 "DP_AN9801", 746 "DP_DP501", 747 "INTERNAL_UNIPHY", 748 "INTERNAL_KLDSCP_LVTMA", 749 "INTERNAL_UNIPHY1", 750 "INTERNAL_UNIPHY2", 751 "NUTMEG", 752 "TRAVIS", 753 "INTERNAL_VCE", 754 "INTERNAL_UNIPHY3", 755 }; 756 757 static const char *hpd_names[6] = { 758 "HPD1", 759 "HPD2", 760 "HPD3", 761 "HPD4", 762 "HPD5", 763 "HPD6", 764 }; 765 766 static void radeon_print_display_setup(struct drm_device *dev) 767 { 768 struct drm_connector *connector; 769 struct radeon_connector *radeon_connector; 770 struct drm_encoder *encoder; 771 struct radeon_encoder *radeon_encoder; 772 uint32_t devices; 773 int i = 0; 774 775 DRM_INFO("Radeon Display Connectors\n"); 776 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 777 radeon_connector = to_radeon_connector(connector); 778 DRM_INFO("Connector %d:\n", i); 779 DRM_INFO(" %s\n", connector->name); 780 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE) 781 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]); 782 if (radeon_connector->ddc_bus) { 783 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 784 radeon_connector->ddc_bus->rec.mask_clk_reg, 785 radeon_connector->ddc_bus->rec.mask_data_reg, 786 radeon_connector->ddc_bus->rec.a_clk_reg, 787 radeon_connector->ddc_bus->rec.a_data_reg, 788 radeon_connector->ddc_bus->rec.en_clk_reg, 789 radeon_connector->ddc_bus->rec.en_data_reg, 790 radeon_connector->ddc_bus->rec.y_clk_reg, 791 radeon_connector->ddc_bus->rec.y_data_reg); 792 if (radeon_connector->router.ddc_valid) 793 DRM_INFO(" DDC Router 0x%x/0x%x\n", 794 radeon_connector->router.ddc_mux_control_pin, 795 radeon_connector->router.ddc_mux_state); 796 if (radeon_connector->router.cd_valid) 797 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n", 798 radeon_connector->router.cd_mux_control_pin, 799 radeon_connector->router.cd_mux_state); 800 } else { 801 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA || 802 connector->connector_type == DRM_MODE_CONNECTOR_DVII || 803 connector->connector_type == DRM_MODE_CONNECTOR_DVID || 804 connector->connector_type == DRM_MODE_CONNECTOR_DVIA || 805 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || 806 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB) 807 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati (at) lists.x.org\n"); 808 } 809 DRM_INFO(" Encoders:\n"); 810 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 811 radeon_encoder = to_radeon_encoder(encoder); 812 devices = radeon_encoder->devices & radeon_connector->devices; 813 if (devices) { 814 if (devices & ATOM_DEVICE_CRT1_SUPPORT) 815 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]); 816 if (devices & ATOM_DEVICE_CRT2_SUPPORT) 817 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]); 818 if (devices & ATOM_DEVICE_LCD1_SUPPORT) 819 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]); 820 if (devices & ATOM_DEVICE_DFP1_SUPPORT) 821 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]); 822 if (devices & ATOM_DEVICE_DFP2_SUPPORT) 823 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]); 824 if (devices & ATOM_DEVICE_DFP3_SUPPORT) 825 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]); 826 if (devices & ATOM_DEVICE_DFP4_SUPPORT) 827 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]); 828 if (devices & ATOM_DEVICE_DFP5_SUPPORT) 829 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]); 830 if (devices & ATOM_DEVICE_DFP6_SUPPORT) 831 DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]); 832 if (devices & ATOM_DEVICE_TV1_SUPPORT) 833 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]); 834 if (devices & ATOM_DEVICE_CV_SUPPORT) 835 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]); 836 } 837 } 838 i++; 839 } 840 } 841 842 static bool radeon_setup_enc_conn(struct drm_device *dev) 843 { 844 struct radeon_device *rdev = dev->dev_private; 845 bool ret = false; 846 847 if (rdev->bios) { 848 if (rdev->is_atom_bios) { 849 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev); 850 if (!ret) 851 ret = radeon_get_atom_connector_info_from_object_table(dev); 852 } else { 853 ret = radeon_get_legacy_connector_info_from_bios(dev); 854 if (!ret) 855 ret = radeon_get_legacy_connector_info_from_table(dev); 856 } 857 } else { 858 if (!ASIC_IS_AVIVO(rdev)) 859 ret = radeon_get_legacy_connector_info_from_table(dev); 860 } 861 if (ret) { 862 radeon_setup_encoder_clones(dev); 863 radeon_print_display_setup(dev); 864 } 865 866 return ret; 867 } 868 869 /* avivo */ 870 871 /** 872 * avivo_reduce_ratio - fractional number reduction 873 * 874 * @nom: nominator 875 * @den: denominator 876 * @nom_min: minimum value for nominator 877 * @den_min: minimum value for denominator 878 * 879 * Find the greatest common divisor and apply it on both nominator and 880 * denominator, but make nominator and denominator are at least as large 881 * as their minimum values. 882 */ 883 static void avivo_reduce_ratio(unsigned *nom, unsigned *den, 884 unsigned nom_min, unsigned den_min) 885 { 886 unsigned tmp; 887 888 /* reduce the numbers to a simpler ratio */ 889 tmp = gcd(*nom, *den); 890 *nom /= tmp; 891 *den /= tmp; 892 893 /* make sure nominator is large enough */ 894 if (*nom < nom_min) { 895 tmp = DIV_ROUND_UP(nom_min, *nom); 896 *nom *= tmp; 897 *den *= tmp; 898 } 899 900 /* make sure the denominator is large enough */ 901 if (*den < den_min) { 902 tmp = DIV_ROUND_UP(den_min, *den); 903 *nom *= tmp; 904 *den *= tmp; 905 } 906 } 907 908 /** 909 * avivo_get_fb_ref_div - feedback and ref divider calculation 910 * 911 * @nom: nominator 912 * @den: denominator 913 * @post_div: post divider 914 * @fb_div_max: feedback divider maximum 915 * @ref_div_max: reference divider maximum 916 * @fb_div: resulting feedback divider 917 * @ref_div: resulting reference divider 918 * 919 * Calculate feedback and reference divider for a given post divider. Makes 920 * sure we stay within the limits. 921 */ 922 static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div, 923 unsigned fb_div_max, unsigned ref_div_max, 924 unsigned *fb_div, unsigned *ref_div) 925 { 926 /* limit reference * post divider to a maximum */ 927 ref_div_max = max(min(100 / post_div, ref_div_max), 1u); 928 929 /* get matching reference and feedback divider */ 930 *ref_div = min(max(den/post_div, 1u), ref_div_max); 931 *fb_div = DIV_ROUND_CLOSEST(nom * *ref_div * post_div, den); 932 933 /* limit fb divider to its maximum */ 934 if (*fb_div > fb_div_max) { 935 *ref_div = (*ref_div * fb_div_max)/(*fb_div); 936 *fb_div = fb_div_max; 937 } 938 } 939 940 /** 941 * radeon_compute_pll_avivo - compute PLL paramaters 942 * 943 * @pll: information about the PLL 944 * @dot_clock_p: resulting pixel clock 945 * fb_div_p: resulting feedback divider 946 * frac_fb_div_p: fractional part of the feedback divider 947 * ref_div_p: resulting reference divider 948 * post_div_p: resulting reference divider 949 * 950 * Try to calculate the PLL parameters to generate the given frequency: 951 * dot_clock = (ref_freq * feedback_div) / (ref_div * post_div) 952 */ 953 void radeon_compute_pll_avivo(struct radeon_pll *pll, 954 u32 freq, 955 u32 *dot_clock_p, 956 u32 *fb_div_p, 957 u32 *frac_fb_div_p, 958 u32 *ref_div_p, 959 u32 *post_div_p) 960 { 961 unsigned target_clock = pll->flags & RADEON_PLL_USE_FRAC_FB_DIV ? 962 freq : freq / 10; 963 964 unsigned fb_div_min, fb_div_max, fb_div; 965 unsigned post_div_min, post_div_max, post_div; 966 unsigned ref_div_min, ref_div_max, ref_div; 967 unsigned post_div_best, diff_best; 968 unsigned nom, den; 969 970 /* determine allowed feedback divider range */ 971 fb_div_min = pll->min_feedback_div; 972 fb_div_max = pll->max_feedback_div; 973 974 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 975 fb_div_min *= 10; 976 fb_div_max *= 10; 977 } 978 979 /* determine allowed ref divider range */ 980 if (pll->flags & RADEON_PLL_USE_REF_DIV) 981 ref_div_min = pll->reference_div; 982 else 983 ref_div_min = pll->min_ref_div; 984 985 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && 986 pll->flags & RADEON_PLL_USE_REF_DIV) 987 ref_div_max = pll->reference_div; 988 else if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) 989 /* fix for problems on RS880 */ 990 ref_div_max = min(pll->max_ref_div, 7u); 991 else 992 ref_div_max = pll->max_ref_div; 993 994 /* determine allowed post divider range */ 995 if (pll->flags & RADEON_PLL_USE_POST_DIV) { 996 post_div_min = pll->post_div; 997 post_div_max = pll->post_div; 998 } else { 999 unsigned vco_min, vco_max; 1000 1001 if (pll->flags & RADEON_PLL_IS_LCD) { 1002 vco_min = pll->lcd_pll_out_min; 1003 vco_max = pll->lcd_pll_out_max; 1004 } else { 1005 vco_min = pll->pll_out_min; 1006 vco_max = pll->pll_out_max; 1007 } 1008 1009 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1010 vco_min *= 10; 1011 vco_max *= 10; 1012 } 1013 1014 post_div_min = vco_min / target_clock; 1015 if ((target_clock * post_div_min) < vco_min) 1016 ++post_div_min; 1017 if (post_div_min < pll->min_post_div) 1018 post_div_min = pll->min_post_div; 1019 1020 post_div_max = vco_max / target_clock; 1021 if ((target_clock * post_div_max) > vco_max) 1022 --post_div_max; 1023 if (post_div_max > pll->max_post_div) 1024 post_div_max = pll->max_post_div; 1025 } 1026 1027 /* represent the searched ratio as fractional number */ 1028 nom = target_clock; 1029 den = pll->reference_freq; 1030 1031 /* reduce the numbers to a simpler ratio */ 1032 avivo_reduce_ratio(&nom, &den, fb_div_min, post_div_min); 1033 1034 /* now search for a post divider */ 1035 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) 1036 post_div_best = post_div_min; 1037 else 1038 post_div_best = post_div_max; 1039 diff_best = ~0; 1040 1041 for (post_div = post_div_min; post_div <= post_div_max; ++post_div) { 1042 unsigned diff; 1043 avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, 1044 ref_div_max, &fb_div, &ref_div); 1045 diff = abs(target_clock - (pll->reference_freq * fb_div) / 1046 (ref_div * post_div)); 1047 1048 if (diff < diff_best || (diff == diff_best && 1049 !(pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP))) { 1050 1051 post_div_best = post_div; 1052 diff_best = diff; 1053 } 1054 } 1055 post_div = post_div_best; 1056 1057 /* get the feedback and reference divider for the optimal value */ 1058 avivo_get_fb_ref_div(nom, den, post_div, fb_div_max, ref_div_max, 1059 &fb_div, &ref_div); 1060 1061 /* reduce the numbers to a simpler ratio once more */ 1062 /* this also makes sure that the reference divider is large enough */ 1063 avivo_reduce_ratio(&fb_div, &ref_div, fb_div_min, ref_div_min); 1064 1065 /* avoid high jitter with small fractional dividers */ 1066 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV && (fb_div % 10)) { 1067 fb_div_min = max(fb_div_min, (9 - (fb_div % 10)) * 20 + 50); 1068 if (fb_div < fb_div_min) { 1069 unsigned tmp = DIV_ROUND_UP(fb_div_min, fb_div); 1070 fb_div *= tmp; 1071 ref_div *= tmp; 1072 } 1073 } 1074 1075 /* and finally save the result */ 1076 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1077 *fb_div_p = fb_div / 10; 1078 *frac_fb_div_p = fb_div % 10; 1079 } else { 1080 *fb_div_p = fb_div; 1081 *frac_fb_div_p = 0; 1082 } 1083 1084 *dot_clock_p = ((pll->reference_freq * *fb_div_p * 10) + 1085 (pll->reference_freq * *frac_fb_div_p)) / 1086 (ref_div * post_div * 10); 1087 *ref_div_p = ref_div; 1088 *post_div_p = post_div; 1089 1090 DRM_DEBUG_KMS("%d - %d, pll dividers - fb: %d.%d ref: %d, post %d\n", 1091 freq, *dot_clock_p * 10, *fb_div_p, *frac_fb_div_p, 1092 ref_div, post_div); 1093 } 1094 1095 /* pre-avivo */ 1096 static inline uint32_t radeon_div(uint64_t n, uint32_t d) 1097 { 1098 uint64_t mod __unused; 1099 1100 n += d / 2; 1101 1102 mod = do_div(n, d); 1103 return n; 1104 } 1105 1106 void radeon_compute_pll_legacy(struct radeon_pll *pll, 1107 uint64_t freq, 1108 uint32_t *dot_clock_p, 1109 uint32_t *fb_div_p, 1110 uint32_t *frac_fb_div_p, 1111 uint32_t *ref_div_p, 1112 uint32_t *post_div_p) 1113 { 1114 uint32_t min_ref_div = pll->min_ref_div; 1115 uint32_t max_ref_div = pll->max_ref_div; 1116 uint32_t min_post_div = pll->min_post_div; 1117 uint32_t max_post_div = pll->max_post_div; 1118 uint32_t min_fractional_feed_div = 0; 1119 uint32_t max_fractional_feed_div = 0; 1120 uint32_t best_vco = pll->best_vco; 1121 uint32_t best_post_div = 1; 1122 uint32_t best_ref_div = 1; 1123 uint32_t best_feedback_div = 1; 1124 uint32_t best_frac_feedback_div = 0; 1125 uint32_t best_freq = -1; 1126 uint32_t best_error = 0xffffffff; 1127 uint32_t best_vco_diff = 1; 1128 uint32_t post_div; 1129 u32 pll_out_min, pll_out_max; 1130 1131 DRM_DEBUG_KMS("PLL freq %"PRIu64" %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); 1132 freq = freq * 1000; 1133 1134 if (pll->flags & RADEON_PLL_IS_LCD) { 1135 pll_out_min = pll->lcd_pll_out_min; 1136 pll_out_max = pll->lcd_pll_out_max; 1137 } else { 1138 pll_out_min = pll->pll_out_min; 1139 pll_out_max = pll->pll_out_max; 1140 } 1141 1142 if (pll_out_min > 64800) 1143 pll_out_min = 64800; 1144 1145 if (pll->flags & RADEON_PLL_USE_REF_DIV) 1146 min_ref_div = max_ref_div = pll->reference_div; 1147 else { 1148 while (min_ref_div < max_ref_div-1) { 1149 uint32_t mid = (min_ref_div + max_ref_div) / 2; 1150 uint32_t pll_in = pll->reference_freq / mid; 1151 if (pll_in < pll->pll_in_min) 1152 max_ref_div = mid; 1153 else if (pll_in > pll->pll_in_max) 1154 min_ref_div = mid; 1155 else 1156 break; 1157 } 1158 } 1159 1160 if (pll->flags & RADEON_PLL_USE_POST_DIV) 1161 min_post_div = max_post_div = pll->post_div; 1162 1163 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) { 1164 min_fractional_feed_div = pll->min_frac_feedback_div; 1165 max_fractional_feed_div = pll->max_frac_feedback_div; 1166 } 1167 1168 for (post_div = max_post_div; post_div >= min_post_div; --post_div) { 1169 uint32_t ref_div; 1170 1171 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1)) 1172 continue; 1173 1174 /* legacy radeons only have a few post_divs */ 1175 if (pll->flags & RADEON_PLL_LEGACY) { 1176 if ((post_div == 5) || 1177 (post_div == 7) || 1178 (post_div == 9) || 1179 (post_div == 10) || 1180 (post_div == 11) || 1181 (post_div == 13) || 1182 (post_div == 14) || 1183 (post_div == 15)) 1184 continue; 1185 } 1186 1187 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) { 1188 uint32_t feedback_div, current_freq = 0, error, vco_diff; 1189 uint32_t pll_in = pll->reference_freq / ref_div; 1190 uint32_t min_feed_div = pll->min_feedback_div; 1191 uint32_t max_feed_div = pll->max_feedback_div + 1; 1192 1193 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max) 1194 continue; 1195 1196 while (min_feed_div < max_feed_div) { 1197 uint32_t vco; 1198 uint32_t min_frac_feed_div = min_fractional_feed_div; 1199 uint32_t max_frac_feed_div = max_fractional_feed_div + 1; 1200 uint32_t frac_feedback_div; 1201 uint64_t tmp; 1202 1203 feedback_div = (min_feed_div + max_feed_div) / 2; 1204 1205 tmp = (uint64_t)pll->reference_freq * feedback_div; 1206 vco = radeon_div(tmp, ref_div); 1207 1208 if (vco < pll_out_min) { 1209 min_feed_div = feedback_div + 1; 1210 continue; 1211 } else if (vco > pll_out_max) { 1212 max_feed_div = feedback_div; 1213 continue; 1214 } 1215 1216 while (min_frac_feed_div < max_frac_feed_div) { 1217 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2; 1218 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div; 1219 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div; 1220 current_freq = radeon_div(tmp, ref_div * post_div); 1221 1222 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) { 1223 if (freq < current_freq) 1224 error = 0xffffffff; 1225 else 1226 error = freq - current_freq; 1227 } else 1228 error = abs(current_freq - freq); 1229 vco_diff = abs(vco - best_vco); 1230 1231 if ((best_vco == 0 && error < best_error) || 1232 (best_vco != 0 && 1233 ((best_error > 100 && error < best_error - 100) || 1234 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) { 1235 best_post_div = post_div; 1236 best_ref_div = ref_div; 1237 best_feedback_div = feedback_div; 1238 best_frac_feedback_div = frac_feedback_div; 1239 best_freq = current_freq; 1240 best_error = error; 1241 best_vco_diff = vco_diff; 1242 } else if (current_freq == freq) { 1243 if (best_freq == -1) { 1244 best_post_div = post_div; 1245 best_ref_div = ref_div; 1246 best_feedback_div = feedback_div; 1247 best_frac_feedback_div = frac_feedback_div; 1248 best_freq = current_freq; 1249 best_error = error; 1250 best_vco_diff = vco_diff; 1251 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) || 1252 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) || 1253 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) || 1254 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) || 1255 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) || 1256 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) { 1257 best_post_div = post_div; 1258 best_ref_div = ref_div; 1259 best_feedback_div = feedback_div; 1260 best_frac_feedback_div = frac_feedback_div; 1261 best_freq = current_freq; 1262 best_error = error; 1263 best_vco_diff = vco_diff; 1264 } 1265 } 1266 if (current_freq < freq) 1267 min_frac_feed_div = frac_feedback_div + 1; 1268 else 1269 max_frac_feed_div = frac_feedback_div; 1270 } 1271 if (current_freq < freq) 1272 min_feed_div = feedback_div + 1; 1273 else 1274 max_feed_div = feedback_div; 1275 } 1276 } 1277 } 1278 1279 *dot_clock_p = best_freq / 10000; 1280 *fb_div_p = best_feedback_div; 1281 *frac_fb_div_p = best_frac_feedback_div; 1282 *ref_div_p = best_ref_div; 1283 *post_div_p = best_post_div; 1284 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n", 1285 (long long)freq, 1286 best_freq / 1000, best_feedback_div, best_frac_feedback_div, 1287 best_ref_div, best_post_div); 1288 1289 } 1290 1291 static const struct drm_framebuffer_funcs radeon_fb_funcs = { 1292 .destroy = drm_gem_fb_destroy, 1293 .create_handle = drm_gem_fb_create_handle, 1294 }; 1295 1296 int 1297 radeon_framebuffer_init(struct drm_device *dev, 1298 struct drm_framebuffer *fb, 1299 const struct drm_mode_fb_cmd2 *mode_cmd, 1300 struct drm_gem_object *obj) 1301 { 1302 int ret; 1303 fb->obj[0] = obj; 1304 drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd); 1305 ret = drm_framebuffer_init(dev, fb, &radeon_fb_funcs); 1306 if (ret) { 1307 fb->obj[0] = NULL; 1308 return ret; 1309 } 1310 return 0; 1311 } 1312 1313 static struct drm_framebuffer * 1314 radeon_user_framebuffer_create(struct drm_device *dev, 1315 struct drm_file *file_priv, 1316 const struct drm_mode_fb_cmd2 *mode_cmd) 1317 { 1318 struct drm_gem_object *obj; 1319 struct drm_framebuffer *fb; 1320 int ret; 1321 1322 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 1323 if (obj == NULL) { 1324 dev_err(dev->dev, "No GEM object associated to handle 0x%08X, " 1325 "can't create framebuffer\n", mode_cmd->handles[0]); 1326 return ERR_PTR(-ENOENT); 1327 } 1328 1329 /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ 1330 if (obj->import_attach) { 1331 DRM_DEBUG_KMS("Cannot create framebuffer from imported dma_buf\n"); 1332 return ERR_PTR(-EINVAL); 1333 } 1334 1335 fb = kzalloc(sizeof(*fb), GFP_KERNEL); 1336 if (fb == NULL) { 1337 drm_gem_object_put_unlocked(obj); 1338 return ERR_PTR(-ENOMEM); 1339 } 1340 1341 ret = radeon_framebuffer_init(dev, fb, mode_cmd, obj); 1342 if (ret) { 1343 kfree(fb); 1344 drm_gem_object_put_unlocked(obj); 1345 return ERR_PTR(ret); 1346 } 1347 1348 return fb; 1349 } 1350 1351 static const struct drm_mode_config_funcs radeon_mode_funcs = { 1352 .fb_create = radeon_user_framebuffer_create, 1353 .output_poll_changed = drm_fb_helper_output_poll_changed, 1354 }; 1355 1356 static const struct drm_prop_enum_list radeon_tmds_pll_enum_list[] = 1357 { { 0, "driver" }, 1358 { 1, "bios" }, 1359 }; 1360 1361 static const struct drm_prop_enum_list radeon_tv_std_enum_list[] = 1362 { { TV_STD_NTSC, "ntsc" }, 1363 { TV_STD_PAL, "pal" }, 1364 { TV_STD_PAL_M, "pal-m" }, 1365 { TV_STD_PAL_60, "pal-60" }, 1366 { TV_STD_NTSC_J, "ntsc-j" }, 1367 { TV_STD_SCART_PAL, "scart-pal" }, 1368 { TV_STD_PAL_CN, "pal-cn" }, 1369 { TV_STD_SECAM, "secam" }, 1370 }; 1371 1372 static const struct drm_prop_enum_list radeon_underscan_enum_list[] = 1373 { { UNDERSCAN_OFF, "off" }, 1374 { UNDERSCAN_ON, "on" }, 1375 { UNDERSCAN_AUTO, "auto" }, 1376 }; 1377 1378 static const struct drm_prop_enum_list radeon_audio_enum_list[] = 1379 { { RADEON_AUDIO_DISABLE, "off" }, 1380 { RADEON_AUDIO_ENABLE, "on" }, 1381 { RADEON_AUDIO_AUTO, "auto" }, 1382 }; 1383 1384 /* XXX support different dither options? spatial, temporal, both, etc. */ 1385 static const struct drm_prop_enum_list radeon_dither_enum_list[] = 1386 { { RADEON_FMT_DITHER_DISABLE, "off" }, 1387 { RADEON_FMT_DITHER_ENABLE, "on" }, 1388 }; 1389 1390 static const struct drm_prop_enum_list radeon_output_csc_enum_list[] = 1391 { { RADEON_OUTPUT_CSC_BYPASS, "bypass" }, 1392 { RADEON_OUTPUT_CSC_TVRGB, "tvrgb" }, 1393 { RADEON_OUTPUT_CSC_YCBCR601, "ycbcr601" }, 1394 { RADEON_OUTPUT_CSC_YCBCR709, "ycbcr709" }, 1395 }; 1396 1397 static int radeon_modeset_create_props(struct radeon_device *rdev) 1398 { 1399 int sz; 1400 1401 if (rdev->is_atom_bios) { 1402 rdev->mode_info.coherent_mode_property = 1403 drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1); 1404 if (!rdev->mode_info.coherent_mode_property) 1405 return -ENOMEM; 1406 } 1407 1408 if (!ASIC_IS_AVIVO(rdev)) { 1409 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list); 1410 rdev->mode_info.tmds_pll_property = 1411 drm_property_create_enum(rdev->ddev, 0, 1412 "tmds_pll", 1413 radeon_tmds_pll_enum_list, sz); 1414 } 1415 1416 rdev->mode_info.load_detect_property = 1417 drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1); 1418 if (!rdev->mode_info.load_detect_property) 1419 return -ENOMEM; 1420 1421 drm_mode_create_scaling_mode_property(rdev->ddev); 1422 1423 sz = ARRAY_SIZE(radeon_tv_std_enum_list); 1424 rdev->mode_info.tv_std_property = 1425 drm_property_create_enum(rdev->ddev, 0, 1426 "tv standard", 1427 radeon_tv_std_enum_list, sz); 1428 1429 sz = ARRAY_SIZE(radeon_underscan_enum_list); 1430 rdev->mode_info.underscan_property = 1431 drm_property_create_enum(rdev->ddev, 0, 1432 "underscan", 1433 radeon_underscan_enum_list, sz); 1434 1435 rdev->mode_info.underscan_hborder_property = 1436 drm_property_create_range(rdev->ddev, 0, 1437 "underscan hborder", 0, 128); 1438 if (!rdev->mode_info.underscan_hborder_property) 1439 return -ENOMEM; 1440 1441 rdev->mode_info.underscan_vborder_property = 1442 drm_property_create_range(rdev->ddev, 0, 1443 "underscan vborder", 0, 128); 1444 if (!rdev->mode_info.underscan_vborder_property) 1445 return -ENOMEM; 1446 1447 sz = ARRAY_SIZE(radeon_audio_enum_list); 1448 rdev->mode_info.audio_property = 1449 drm_property_create_enum(rdev->ddev, 0, 1450 "audio", 1451 radeon_audio_enum_list, sz); 1452 1453 sz = ARRAY_SIZE(radeon_dither_enum_list); 1454 rdev->mode_info.dither_property = 1455 drm_property_create_enum(rdev->ddev, 0, 1456 "dither", 1457 radeon_dither_enum_list, sz); 1458 1459 sz = ARRAY_SIZE(radeon_output_csc_enum_list); 1460 rdev->mode_info.output_csc_property = 1461 drm_property_create_enum(rdev->ddev, 0, 1462 "output_csc", 1463 radeon_output_csc_enum_list, sz); 1464 1465 return 0; 1466 } 1467 1468 void radeon_update_display_priority(struct radeon_device *rdev) 1469 { 1470 /* adjustment options for the display watermarks */ 1471 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) { 1472 /* set display priority to high for r3xx, rv515 chips 1473 * this avoids flickering due to underflow to the 1474 * display controllers during heavy acceleration. 1475 * Don't force high on rs4xx igp chips as it seems to 1476 * affect the sound card. See kernel bug 15982. 1477 */ 1478 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) && 1479 !(rdev->flags & RADEON_IS_IGP)) 1480 rdev->disp_priority = 2; 1481 else 1482 rdev->disp_priority = 0; 1483 } else 1484 rdev->disp_priority = radeon_disp_priority; 1485 1486 } 1487 1488 /* 1489 * Allocate hdmi structs and determine register offsets 1490 */ 1491 static void radeon_afmt_init(struct radeon_device *rdev) 1492 { 1493 int i; 1494 1495 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) 1496 rdev->mode_info.afmt[i] = NULL; 1497 1498 if (ASIC_IS_NODCE(rdev)) { 1499 /* nothing to do */ 1500 } else if (ASIC_IS_DCE4(rdev)) { 1501 static uint32_t eg_offsets[] = { 1502 EVERGREEN_CRTC0_REGISTER_OFFSET, 1503 EVERGREEN_CRTC1_REGISTER_OFFSET, 1504 EVERGREEN_CRTC2_REGISTER_OFFSET, 1505 EVERGREEN_CRTC3_REGISTER_OFFSET, 1506 EVERGREEN_CRTC4_REGISTER_OFFSET, 1507 EVERGREEN_CRTC5_REGISTER_OFFSET, 1508 0x13830 - 0x7030, 1509 }; 1510 int num_afmt; 1511 1512 /* DCE8 has 7 audio blocks tied to DIG encoders */ 1513 /* DCE6 has 6 audio blocks tied to DIG encoders */ 1514 /* DCE4/5 has 6 audio blocks tied to DIG encoders */ 1515 /* DCE4.1 has 2 audio blocks tied to DIG encoders */ 1516 if (ASIC_IS_DCE8(rdev)) 1517 num_afmt = 7; 1518 else if (ASIC_IS_DCE6(rdev)) 1519 num_afmt = 6; 1520 else if (ASIC_IS_DCE5(rdev)) 1521 num_afmt = 6; 1522 else if (ASIC_IS_DCE41(rdev)) 1523 num_afmt = 2; 1524 else /* DCE4 */ 1525 num_afmt = 6; 1526 1527 BUG_ON(num_afmt > ARRAY_SIZE(eg_offsets)); 1528 for (i = 0; i < num_afmt; i++) { 1529 rdev->mode_info.afmt[i] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1530 if (rdev->mode_info.afmt[i]) { 1531 rdev->mode_info.afmt[i]->offset = eg_offsets[i]; 1532 rdev->mode_info.afmt[i]->id = i; 1533 } 1534 } 1535 } else if (ASIC_IS_DCE3(rdev)) { 1536 /* DCE3.x has 2 audio blocks tied to DIG encoders */ 1537 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1538 if (rdev->mode_info.afmt[0]) { 1539 rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0; 1540 rdev->mode_info.afmt[0]->id = 0; 1541 } 1542 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1543 if (rdev->mode_info.afmt[1]) { 1544 rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1; 1545 rdev->mode_info.afmt[1]->id = 1; 1546 } 1547 } else if (ASIC_IS_DCE2(rdev)) { 1548 /* DCE2 has at least 1 routable audio block */ 1549 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1550 if (rdev->mode_info.afmt[0]) { 1551 rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0; 1552 rdev->mode_info.afmt[0]->id = 0; 1553 } 1554 /* r6xx has 2 routable audio blocks */ 1555 if (rdev->family >= CHIP_R600) { 1556 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL); 1557 if (rdev->mode_info.afmt[1]) { 1558 rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1; 1559 rdev->mode_info.afmt[1]->id = 1; 1560 } 1561 } 1562 } 1563 } 1564 1565 static void radeon_afmt_fini(struct radeon_device *rdev) 1566 { 1567 int i; 1568 1569 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) { 1570 kfree(rdev->mode_info.afmt[i]); 1571 rdev->mode_info.afmt[i] = NULL; 1572 } 1573 } 1574 1575 int radeon_modeset_init(struct radeon_device *rdev) 1576 { 1577 int i; 1578 int ret; 1579 1580 drm_mode_config_init(rdev->ddev); 1581 rdev->mode_info.mode_config_initialized = true; 1582 1583 rdev->ddev->mode_config.funcs = &radeon_mode_funcs; 1584 1585 if (radeon_use_pflipirq == 2 && rdev->family >= CHIP_R600) 1586 rdev->ddev->mode_config.async_page_flip = true; 1587 1588 if (ASIC_IS_DCE5(rdev)) { 1589 rdev->ddev->mode_config.max_width = 16384; 1590 rdev->ddev->mode_config.max_height = 16384; 1591 } else if (ASIC_IS_AVIVO(rdev)) { 1592 rdev->ddev->mode_config.max_width = 8192; 1593 rdev->ddev->mode_config.max_height = 8192; 1594 } else { 1595 rdev->ddev->mode_config.max_width = 4096; 1596 rdev->ddev->mode_config.max_height = 4096; 1597 } 1598 1599 rdev->ddev->mode_config.preferred_depth = 24; 1600 rdev->ddev->mode_config.prefer_shadow = 1; 1601 1602 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base; 1603 1604 ret = radeon_modeset_create_props(rdev); 1605 if (ret) { 1606 return ret; 1607 } 1608 1609 /* init i2c buses */ 1610 radeon_i2c_init(rdev); 1611 1612 /* check combios for a valid hardcoded EDID - Sun servers */ 1613 if (!rdev->is_atom_bios) { 1614 /* check for hardcoded EDID in BIOS */ 1615 radeon_combios_check_hardcoded_edid(rdev); 1616 } 1617 1618 /* allocate crtcs */ 1619 for (i = 0; i < rdev->num_crtc; i++) { 1620 radeon_crtc_init(rdev->ddev, i); 1621 } 1622 1623 /* okay we should have all the bios connectors */ 1624 ret = radeon_setup_enc_conn(rdev->ddev); 1625 if (!ret) { 1626 return ret; 1627 } 1628 1629 /* init dig PHYs, disp eng pll */ 1630 if (rdev->is_atom_bios) { 1631 radeon_atom_encoder_init(rdev); 1632 radeon_atom_disp_eng_pll_init(rdev); 1633 } 1634 1635 /* initialize hpd */ 1636 radeon_hpd_init(rdev); 1637 1638 /* setup afmt */ 1639 radeon_afmt_init(rdev); 1640 1641 radeon_fbdev_init(rdev); 1642 drm_kms_helper_poll_init(rdev->ddev); 1643 1644 /* do pm late init */ 1645 ret = radeon_pm_late_init(rdev); 1646 1647 return 0; 1648 } 1649 1650 void radeon_modeset_fini(struct radeon_device *rdev) 1651 { 1652 if (rdev->mode_info.mode_config_initialized) { 1653 drm_kms_helper_poll_fini(rdev->ddev); 1654 radeon_hpd_fini(rdev); 1655 drm_helper_force_disable_all(rdev->ddev); 1656 radeon_fbdev_fini(rdev); 1657 radeon_afmt_fini(rdev); 1658 drm_mode_config_cleanup(rdev->ddev); 1659 rdev->mode_info.mode_config_initialized = false; 1660 } 1661 1662 kfree(rdev->mode_info.bios_hardcoded_edid); 1663 1664 /* free i2c buses */ 1665 radeon_i2c_fini(rdev); 1666 } 1667 1668 static bool is_hdtv_mode(const struct drm_display_mode *mode) 1669 { 1670 /* try and guess if this is a tv or a monitor */ 1671 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */ 1672 (mode->vdisplay == 576) || /* 576p */ 1673 (mode->vdisplay == 720) || /* 720p */ 1674 (mode->vdisplay == 1080)) /* 1080p */ 1675 return true; 1676 else 1677 return false; 1678 } 1679 1680 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc, 1681 const struct drm_display_mode *mode, 1682 struct drm_display_mode *adjusted_mode) 1683 { 1684 struct drm_device *dev = crtc->dev; 1685 struct radeon_device *rdev = dev->dev_private; 1686 struct drm_encoder *encoder; 1687 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 1688 struct radeon_encoder *radeon_encoder; 1689 struct drm_connector *connector; 1690 bool first = true; 1691 u32 src_v = 1, dst_v = 1; 1692 u32 src_h = 1, dst_h = 1; 1693 1694 radeon_crtc->h_border = 0; 1695 radeon_crtc->v_border = 0; 1696 1697 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1698 if (encoder->crtc != crtc) 1699 continue; 1700 radeon_encoder = to_radeon_encoder(encoder); 1701 connector = radeon_get_connector_for_encoder(encoder); 1702 1703 if (first) { 1704 /* set scaling */ 1705 if (radeon_encoder->rmx_type == RMX_OFF) 1706 radeon_crtc->rmx_type = RMX_OFF; 1707 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay || 1708 mode->vdisplay < radeon_encoder->native_mode.vdisplay) 1709 radeon_crtc->rmx_type = radeon_encoder->rmx_type; 1710 else 1711 radeon_crtc->rmx_type = RMX_OFF; 1712 /* copy native mode */ 1713 memcpy(&radeon_crtc->native_mode, 1714 &radeon_encoder->native_mode, 1715 sizeof(struct drm_display_mode)); 1716 src_v = crtc->mode.vdisplay; 1717 dst_v = radeon_crtc->native_mode.vdisplay; 1718 src_h = crtc->mode.hdisplay; 1719 dst_h = radeon_crtc->native_mode.hdisplay; 1720 1721 /* fix up for overscan on hdmi */ 1722 if (ASIC_IS_AVIVO(rdev) && 1723 (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) && 1724 ((radeon_encoder->underscan_type == UNDERSCAN_ON) || 1725 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) && 1726 drm_detect_hdmi_monitor(radeon_connector_edid(connector)) && 1727 is_hdtv_mode(mode)))) { 1728 if (radeon_encoder->underscan_hborder != 0) 1729 radeon_crtc->h_border = radeon_encoder->underscan_hborder; 1730 else 1731 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16; 1732 if (radeon_encoder->underscan_vborder != 0) 1733 radeon_crtc->v_border = radeon_encoder->underscan_vborder; 1734 else 1735 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16; 1736 radeon_crtc->rmx_type = RMX_FULL; 1737 src_v = crtc->mode.vdisplay; 1738 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2); 1739 src_h = crtc->mode.hdisplay; 1740 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2); 1741 } 1742 first = false; 1743 } else { 1744 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) { 1745 /* WARNING: Right now this can't happen but 1746 * in the future we need to check that scaling 1747 * are consistent across different encoder 1748 * (ie all encoder can work with the same 1749 * scaling). 1750 */ 1751 DRM_ERROR("Scaling not consistent across encoder.\n"); 1752 return false; 1753 } 1754 } 1755 } 1756 if (radeon_crtc->rmx_type != RMX_OFF) { 1757 fixed20_12 a, b; 1758 a.full = dfixed_const(src_v); 1759 b.full = dfixed_const(dst_v); 1760 radeon_crtc->vsc.full = dfixed_div(a, b); 1761 a.full = dfixed_const(src_h); 1762 b.full = dfixed_const(dst_h); 1763 radeon_crtc->hsc.full = dfixed_div(a, b); 1764 } else { 1765 radeon_crtc->vsc.full = dfixed_const(1); 1766 radeon_crtc->hsc.full = dfixed_const(1); 1767 } 1768 return true; 1769 } 1770 1771 /* 1772 * Retrieve current video scanout position of crtc on a given gpu, and 1773 * an optional accurate timestamp of when query happened. 1774 * 1775 * \param dev Device to query. 1776 * \param crtc Crtc to query. 1777 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0). 1778 * For driver internal use only also supports these flags: 1779 * 1780 * USE_REAL_VBLANKSTART to use the real start of vblank instead 1781 * of a fudged earlier start of vblank. 1782 * 1783 * GET_DISTANCE_TO_VBLANKSTART to return distance to the 1784 * fudged earlier start of vblank in *vpos and the distance 1785 * to true start of vblank in *hpos. 1786 * 1787 * \param *vpos Location where vertical scanout position should be stored. 1788 * \param *hpos Location where horizontal scanout position should go. 1789 * \param *stime Target location for timestamp taken immediately before 1790 * scanout position query. Can be NULL to skip timestamp. 1791 * \param *etime Target location for timestamp taken immediately after 1792 * scanout position query. Can be NULL to skip timestamp. 1793 * 1794 * Returns vpos as a positive number while in active scanout area. 1795 * Returns vpos as a negative number inside vblank, counting the number 1796 * of scanlines to go until end of vblank, e.g., -1 means "one scanline 1797 * until start of active scanout / end of vblank." 1798 * 1799 * \return Flags, or'ed together as follows: 1800 * 1801 * DRM_SCANOUTPOS_VALID = Query successful. 1802 * DRM_SCANOUTPOS_INVBL = Inside vblank. 1803 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of 1804 * this flag means that returned position may be offset by a constant but 1805 * unknown small number of scanlines wrt. real scanout position. 1806 * 1807 */ 1808 int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe, 1809 unsigned int flags, int *vpos, int *hpos, 1810 ktime_t *stime, ktime_t *etime, 1811 const struct drm_display_mode *mode) 1812 { 1813 u32 stat_crtc = 0, vbl = 0, position = 0; 1814 int vbl_start, vbl_end, vtotal, ret = 0; 1815 bool in_vbl = true; 1816 1817 struct radeon_device *rdev = dev->dev_private; 1818 1819 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */ 1820 1821 /* Get optional system timestamp before query. */ 1822 if (stime) 1823 *stime = ktime_get(); 1824 1825 if (ASIC_IS_DCE4(rdev)) { 1826 if (pipe == 0) { 1827 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1828 EVERGREEN_CRTC0_REGISTER_OFFSET); 1829 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1830 EVERGREEN_CRTC0_REGISTER_OFFSET); 1831 ret |= DRM_SCANOUTPOS_VALID; 1832 } 1833 if (pipe == 1) { 1834 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1835 EVERGREEN_CRTC1_REGISTER_OFFSET); 1836 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1837 EVERGREEN_CRTC1_REGISTER_OFFSET); 1838 ret |= DRM_SCANOUTPOS_VALID; 1839 } 1840 if (pipe == 2) { 1841 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1842 EVERGREEN_CRTC2_REGISTER_OFFSET); 1843 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1844 EVERGREEN_CRTC2_REGISTER_OFFSET); 1845 ret |= DRM_SCANOUTPOS_VALID; 1846 } 1847 if (pipe == 3) { 1848 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1849 EVERGREEN_CRTC3_REGISTER_OFFSET); 1850 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1851 EVERGREEN_CRTC3_REGISTER_OFFSET); 1852 ret |= DRM_SCANOUTPOS_VALID; 1853 } 1854 if (pipe == 4) { 1855 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1856 EVERGREEN_CRTC4_REGISTER_OFFSET); 1857 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1858 EVERGREEN_CRTC4_REGISTER_OFFSET); 1859 ret |= DRM_SCANOUTPOS_VALID; 1860 } 1861 if (pipe == 5) { 1862 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + 1863 EVERGREEN_CRTC5_REGISTER_OFFSET); 1864 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + 1865 EVERGREEN_CRTC5_REGISTER_OFFSET); 1866 ret |= DRM_SCANOUTPOS_VALID; 1867 } 1868 } else if (ASIC_IS_AVIVO(rdev)) { 1869 if (pipe == 0) { 1870 vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END); 1871 position = RREG32(AVIVO_D1CRTC_STATUS_POSITION); 1872 ret |= DRM_SCANOUTPOS_VALID; 1873 } 1874 if (pipe == 1) { 1875 vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END); 1876 position = RREG32(AVIVO_D2CRTC_STATUS_POSITION); 1877 ret |= DRM_SCANOUTPOS_VALID; 1878 } 1879 } else { 1880 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */ 1881 if (pipe == 0) { 1882 /* Assume vbl_end == 0, get vbl_start from 1883 * upper 16 bits. 1884 */ 1885 vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) & 1886 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1887 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */ 1888 position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1889 stat_crtc = RREG32(RADEON_CRTC_STATUS); 1890 if (!(stat_crtc & 1)) 1891 in_vbl = false; 1892 1893 ret |= DRM_SCANOUTPOS_VALID; 1894 } 1895 if (pipe == 1) { 1896 vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) & 1897 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT; 1898 position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL; 1899 stat_crtc = RREG32(RADEON_CRTC2_STATUS); 1900 if (!(stat_crtc & 1)) 1901 in_vbl = false; 1902 1903 ret |= DRM_SCANOUTPOS_VALID; 1904 } 1905 } 1906 1907 /* Get optional system timestamp after query. */ 1908 if (etime) 1909 *etime = ktime_get(); 1910 1911 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */ 1912 1913 /* Decode into vertical and horizontal scanout position. */ 1914 *vpos = position & 0x1fff; 1915 *hpos = (position >> 16) & 0x1fff; 1916 1917 /* Valid vblank area boundaries from gpu retrieved? */ 1918 if (vbl > 0) { 1919 /* Yes: Decode. */ 1920 ret |= DRM_SCANOUTPOS_ACCURATE; 1921 vbl_start = vbl & 0x1fff; 1922 vbl_end = (vbl >> 16) & 0x1fff; 1923 } 1924 else { 1925 /* No: Fake something reasonable which gives at least ok results. */ 1926 vbl_start = mode->crtc_vdisplay; 1927 vbl_end = 0; 1928 } 1929 1930 /* Called from driver internal vblank counter query code? */ 1931 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1932 /* Caller wants distance from real vbl_start in *hpos */ 1933 *hpos = *vpos - vbl_start; 1934 } 1935 1936 /* Fudge vblank to start a few scanlines earlier to handle the 1937 * problem that vblank irqs fire a few scanlines before start 1938 * of vblank. Some driver internal callers need the true vblank 1939 * start to be used and signal this via the USE_REAL_VBLANKSTART flag. 1940 * 1941 * The cause of the "early" vblank irq is that the irq is triggered 1942 * by the line buffer logic when the line buffer read position enters 1943 * the vblank, whereas our crtc scanout position naturally lags the 1944 * line buffer read position. 1945 */ 1946 if (!(flags & USE_REAL_VBLANKSTART)) 1947 vbl_start -= rdev->mode_info.crtcs[pipe]->lb_vblank_lead_lines; 1948 1949 /* Test scanout position against vblank region. */ 1950 if ((*vpos < vbl_start) && (*vpos >= vbl_end)) 1951 in_vbl = false; 1952 1953 /* In vblank? */ 1954 if (in_vbl) 1955 ret |= DRM_SCANOUTPOS_IN_VBLANK; 1956 1957 /* Called from driver internal vblank counter query code? */ 1958 if (flags & GET_DISTANCE_TO_VBLANKSTART) { 1959 /* Caller wants distance from fudged earlier vbl_start */ 1960 *vpos -= vbl_start; 1961 return ret; 1962 } 1963 1964 /* Check if inside vblank area and apply corrective offsets: 1965 * vpos will then be >=0 in video scanout area, but negative 1966 * within vblank area, counting down the number of lines until 1967 * start of scanout. 1968 */ 1969 1970 /* Inside "upper part" of vblank area? Apply corrective offset if so: */ 1971 if (in_vbl && (*vpos >= vbl_start)) { 1972 vtotal = mode->crtc_vtotal; 1973 *vpos = *vpos - vtotal; 1974 } 1975 1976 /* Correct for shifted end of vbl at vbl_end. */ 1977 *vpos = *vpos - vbl_end; 1978 1979 return ret; 1980 } 1981
Indexes created Sat Sep 20 22:09:52 GMT 2025