1 /* 2 * Copyright 2007-8 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: Dave Airlie 24 * Alex Deucher 25 */ 26 #include <drm/drmP.h> 27 #include <drm/drm_crtc_helper.h> 28 #include <drm/drm_fb_helper.h> 29 #include <uapi_drm/radeon_drm.h> 30 #include <drm/drm_fixed.h> 31 #include "radeon.h" 32 #include "atom.h" 33 34 static void radeon_overscan_setup(struct drm_crtc *crtc, 35 struct drm_display_mode *mode) 36 { 37 struct drm_device *dev = crtc->dev; 38 struct radeon_device *rdev = dev->dev_private; 39 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 40 41 WREG32(RADEON_OVR_CLR + radeon_crtc->crtc_offset, 0); 42 WREG32(RADEON_OVR_WID_LEFT_RIGHT + radeon_crtc->crtc_offset, 0); 43 WREG32(RADEON_OVR_WID_TOP_BOTTOM + radeon_crtc->crtc_offset, 0); 44 } 45 46 static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc, 47 struct drm_display_mode *mode) 48 { 49 struct drm_device *dev = crtc->dev; 50 struct radeon_device *rdev = dev->dev_private; 51 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 52 int xres = mode->hdisplay; 53 int yres = mode->vdisplay; 54 bool hscale = true, vscale = true; 55 int hsync_wid; 56 int vsync_wid; 57 int hsync_start; 58 int blank_width; 59 u32 scale, inc, crtc_more_cntl; 60 u32 fp_horz_stretch, fp_vert_stretch, fp_horz_vert_active; 61 u32 fp_h_sync_strt_wid, fp_crtc_h_total_disp; 62 u32 fp_v_sync_strt_wid, fp_crtc_v_total_disp; 63 struct drm_display_mode *native_mode = &radeon_crtc->native_mode; 64 65 fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) & 66 (RADEON_VERT_STRETCH_RESERVED | 67 RADEON_VERT_AUTO_RATIO_INC); 68 fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) & 69 (RADEON_HORZ_FP_LOOP_STRETCH | 70 RADEON_HORZ_AUTO_RATIO_INC); 71 72 crtc_more_cntl = 0; 73 if ((rdev->family == CHIP_RS100) || 74 (rdev->family == CHIP_RS200)) { 75 /* This is to workaround the asic bug for RMX, some versions 76 of BIOS dosen't have this register initialized correctly. */ 77 crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN; 78 } 79 80 81 fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff) 82 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); 83 84 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; 85 if (!hsync_wid) 86 hsync_wid = 1; 87 hsync_start = mode->crtc_hsync_start - 8; 88 89 fp_h_sync_strt_wid = ((hsync_start & 0x1fff) 90 | ((hsync_wid & 0x3f) << 16) 91 | ((mode->flags & DRM_MODE_FLAG_NHSYNC) 92 ? RADEON_CRTC_H_SYNC_POL 93 : 0)); 94 95 fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) 96 | ((mode->crtc_vdisplay - 1) << 16)); 97 98 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; 99 if (!vsync_wid) 100 vsync_wid = 1; 101 102 fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) 103 | ((vsync_wid & 0x1f) << 16) 104 | ((mode->flags & DRM_MODE_FLAG_NVSYNC) 105 ? RADEON_CRTC_V_SYNC_POL 106 : 0)); 107 108 fp_horz_vert_active = 0; 109 110 if (native_mode->hdisplay == 0 || 111 native_mode->vdisplay == 0) { 112 hscale = false; 113 vscale = false; 114 } else { 115 if (xres > native_mode->hdisplay) 116 xres = native_mode->hdisplay; 117 if (yres > native_mode->vdisplay) 118 yres = native_mode->vdisplay; 119 120 if (xres == native_mode->hdisplay) 121 hscale = false; 122 if (yres == native_mode->vdisplay) 123 vscale = false; 124 } 125 126 switch (radeon_crtc->rmx_type) { 127 case RMX_FULL: 128 case RMX_ASPECT: 129 if (!hscale) 130 fp_horz_stretch |= ((xres/8-1) << 16); 131 else { 132 inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0; 133 scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX) 134 / native_mode->hdisplay + 1; 135 fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) | 136 RADEON_HORZ_STRETCH_BLEND | 137 RADEON_HORZ_STRETCH_ENABLE | 138 ((native_mode->hdisplay/8-1) << 16)); 139 } 140 141 if (!vscale) 142 fp_vert_stretch |= ((yres-1) << 12); 143 else { 144 inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0; 145 scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX) 146 / native_mode->vdisplay + 1; 147 fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) | 148 RADEON_VERT_STRETCH_ENABLE | 149 RADEON_VERT_STRETCH_BLEND | 150 ((native_mode->vdisplay-1) << 12)); 151 } 152 break; 153 case RMX_CENTER: 154 fp_horz_stretch |= ((xres/8-1) << 16); 155 fp_vert_stretch |= ((yres-1) << 12); 156 157 crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN | 158 RADEON_CRTC_AUTO_VERT_CENTER_EN); 159 160 blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8; 161 if (blank_width > 110) 162 blank_width = 110; 163 164 fp_crtc_h_total_disp = (((blank_width) & 0x3ff) 165 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); 166 167 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; 168 if (!hsync_wid) 169 hsync_wid = 1; 170 171 fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff) 172 | ((hsync_wid & 0x3f) << 16) 173 | ((mode->flags & DRM_MODE_FLAG_NHSYNC) 174 ? RADEON_CRTC_H_SYNC_POL 175 : 0)); 176 177 fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff) 178 | ((mode->crtc_vdisplay - 1) << 16)); 179 180 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; 181 if (!vsync_wid) 182 vsync_wid = 1; 183 184 fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff) 185 | ((vsync_wid & 0x1f) << 16) 186 | ((mode->flags & DRM_MODE_FLAG_NVSYNC) 187 ? RADEON_CRTC_V_SYNC_POL 188 : 0))); 189 190 fp_horz_vert_active = (((native_mode->vdisplay) & 0xfff) | 191 (((native_mode->hdisplay / 8) & 0x1ff) << 16)); 192 break; 193 case RMX_OFF: 194 default: 195 fp_horz_stretch |= ((xres/8-1) << 16); 196 fp_vert_stretch |= ((yres-1) << 12); 197 break; 198 } 199 200 WREG32(RADEON_FP_HORZ_STRETCH, fp_horz_stretch); 201 WREG32(RADEON_FP_VERT_STRETCH, fp_vert_stretch); 202 WREG32(RADEON_CRTC_MORE_CNTL, crtc_more_cntl); 203 WREG32(RADEON_FP_HORZ_VERT_ACTIVE, fp_horz_vert_active); 204 WREG32(RADEON_FP_H_SYNC_STRT_WID, fp_h_sync_strt_wid); 205 WREG32(RADEON_FP_V_SYNC_STRT_WID, fp_v_sync_strt_wid); 206 WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp); 207 WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp); 208 } 209 210 static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev) 211 { 212 struct radeon_device *rdev = dev->dev_private; 213 int i = 0; 214 215 /* FIXME: Certain revisions of R300 can't recover here. Not sure of 216 the cause yet, but this workaround will mask the problem for now. 217 Other chips usually will pass at the very first test, so the 218 workaround shouldn't have any effect on them. */ 219 for (i = 0; 220 (i < 10000 && 221 RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); 222 i++); 223 } 224 225 static void radeon_pll_write_update(struct drm_device *dev) 226 { 227 struct radeon_device *rdev = dev->dev_private; 228 229 while (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R); 230 231 WREG32_PLL_P(RADEON_PPLL_REF_DIV, 232 RADEON_PPLL_ATOMIC_UPDATE_W, 233 ~(RADEON_PPLL_ATOMIC_UPDATE_W)); 234 } 235 236 static void radeon_pll2_wait_for_read_update_complete(struct drm_device *dev) 237 { 238 struct radeon_device *rdev = dev->dev_private; 239 int i = 0; 240 241 242 /* FIXME: Certain revisions of R300 can't recover here. Not sure of 243 the cause yet, but this workaround will mask the problem for now. 244 Other chips usually will pass at the very first test, so the 245 workaround shouldn't have any effect on them. */ 246 for (i = 0; 247 (i < 10000 && 248 RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); 249 i++); 250 } 251 252 static void radeon_pll2_write_update(struct drm_device *dev) 253 { 254 struct radeon_device *rdev = dev->dev_private; 255 256 while (RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R); 257 258 WREG32_PLL_P(RADEON_P2PLL_REF_DIV, 259 RADEON_P2PLL_ATOMIC_UPDATE_W, 260 ~(RADEON_P2PLL_ATOMIC_UPDATE_W)); 261 } 262 263 static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div, 264 uint16_t fb_div) 265 { 266 unsigned int vcoFreq; 267 268 if (!ref_div) 269 return 1; 270 271 vcoFreq = ((unsigned)ref_freq * fb_div) / ref_div; 272 273 /* 274 * This is horribly crude: the VCO frequency range is divided into 275 * 3 parts, each part having a fixed PLL gain value. 276 */ 277 if (vcoFreq >= 30000) 278 /* 279 * [300..max] MHz : 7 280 */ 281 return 7; 282 else if (vcoFreq >= 18000) 283 /* 284 * [180..300) MHz : 4 285 */ 286 return 4; 287 else 288 /* 289 * [0..180) MHz : 1 290 */ 291 return 1; 292 } 293 294 static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode) 295 { 296 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 297 struct drm_device *dev = crtc->dev; 298 struct radeon_device *rdev = dev->dev_private; 299 uint32_t crtc_ext_cntl = 0; 300 uint32_t mask; 301 302 if (radeon_crtc->crtc_id) 303 mask = (RADEON_CRTC2_DISP_DIS | 304 RADEON_CRTC2_VSYNC_DIS | 305 RADEON_CRTC2_HSYNC_DIS | 306 RADEON_CRTC2_DISP_REQ_EN_B); 307 else 308 mask = (RADEON_CRTC_DISPLAY_DIS | 309 RADEON_CRTC_VSYNC_DIS | 310 RADEON_CRTC_HSYNC_DIS); 311 312 /* 313 * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC. 314 * Therefore it is set in the DAC DMPS function. 315 * This is different for GPU's with a single CRTC but a primary and a 316 * TV DAC: here it controls the single CRTC no matter where it is 317 * routed. Therefore we set it here. 318 */ 319 if (rdev->flags & RADEON_SINGLE_CRTC) 320 crtc_ext_cntl = RADEON_CRTC_CRT_ON; 321 322 switch (mode) { 323 case DRM_MODE_DPMS_ON: 324 radeon_crtc->enabled = true; 325 /* adjust pm to dpms changes BEFORE enabling crtcs */ 326 radeon_pm_compute_clocks(rdev); 327 if (radeon_crtc->crtc_id) 328 WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask)); 329 else { 330 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN | 331 RADEON_CRTC_DISP_REQ_EN_B)); 332 WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl)); 333 } 334 drm_vblank_post_modeset(dev, radeon_crtc->crtc_id); 335 radeon_crtc_load_lut(crtc); 336 break; 337 case DRM_MODE_DPMS_STANDBY: 338 case DRM_MODE_DPMS_SUSPEND: 339 case DRM_MODE_DPMS_OFF: 340 drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id); 341 if (radeon_crtc->crtc_id) 342 WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask)); 343 else { 344 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN | 345 RADEON_CRTC_DISP_REQ_EN_B)); 346 WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl)); 347 } 348 radeon_crtc->enabled = false; 349 /* adjust pm to dpms changes AFTER disabling crtcs */ 350 radeon_pm_compute_clocks(rdev); 351 break; 352 } 353 } 354 355 int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y, 356 struct drm_framebuffer *old_fb) 357 { 358 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0); 359 } 360 361 int radeon_crtc_set_base_atomic(struct drm_crtc *crtc, 362 struct drm_framebuffer *fb, 363 int x, int y, enum mode_set_atomic state) 364 { 365 return radeon_crtc_do_set_base(crtc, fb, x, y, 1); 366 } 367 368 int radeon_crtc_do_set_base(struct drm_crtc *crtc, 369 struct drm_framebuffer *fb, 370 int x, int y, int atomic) 371 { 372 struct drm_device *dev = crtc->dev; 373 struct radeon_device *rdev = dev->dev_private; 374 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 375 struct radeon_framebuffer *radeon_fb; 376 struct drm_framebuffer *target_fb; 377 struct drm_gem_object *obj; 378 struct radeon_bo *rbo; 379 uint64_t base; 380 uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0; 381 uint32_t crtc_pitch, pitch_pixels; 382 uint32_t tiling_flags; 383 int format; 384 uint32_t gen_cntl_reg, gen_cntl_val; 385 int r; 386 387 DRM_DEBUG_KMS("\n"); 388 /* no fb bound */ 389 if (!atomic && !crtc->primary->fb) { 390 DRM_DEBUG_KMS("No FB bound\n"); 391 return 0; 392 } 393 394 if (atomic) { 395 radeon_fb = to_radeon_framebuffer(fb); 396 target_fb = fb; 397 } 398 else { 399 radeon_fb = to_radeon_framebuffer(crtc->primary->fb); 400 target_fb = crtc->primary->fb; 401 } 402 403 switch (target_fb->bits_per_pixel) { 404 case 8: 405 format = 2; 406 break; 407 case 15: /* 555 */ 408 format = 3; 409 break; 410 case 16: /* 565 */ 411 format = 4; 412 break; 413 case 24: /* RGB */ 414 format = 5; 415 break; 416 case 32: /* xRGB */ 417 format = 6; 418 break; 419 default: 420 return false; 421 } 422 423 /* Pin framebuffer & get tilling informations */ 424 obj = radeon_fb->obj; 425 rbo = gem_to_radeon_bo(obj); 426 retry: 427 r = radeon_bo_reserve(rbo, false); 428 if (unlikely(r != 0)) 429 return r; 430 /* Only 27 bit offset for legacy CRTC */ 431 r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 1 << 27, 432 (u64 *)&base); 433 if (unlikely(r != 0)) { 434 radeon_bo_unreserve(rbo); 435 436 /* On old GPU like RN50 with little vram pining can fails because 437 * current fb is taking all space needed. So instead of unpining 438 * the old buffer after pining the new one, first unpin old one 439 * and then retry pining new one. 440 * 441 * As only master can set mode only master can pin and it is 442 * unlikely the master client will race with itself especialy 443 * on those old gpu with single crtc. 444 * 445 * We don't shutdown the display controller because new buffer 446 * will end up in same spot. 447 */ 448 if (!atomic && fb && fb != crtc->primary->fb) { 449 struct radeon_bo *old_rbo; 450 unsigned long nsize, osize; 451 452 old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj); 453 osize = radeon_bo_size(old_rbo); 454 nsize = radeon_bo_size(rbo); 455 if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) { 456 radeon_bo_unpin(old_rbo); 457 radeon_bo_unreserve(old_rbo); 458 fb = NULL; 459 goto retry; 460 } 461 } 462 return -EINVAL; 463 } 464 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL); 465 radeon_bo_unreserve(rbo); 466 if (tiling_flags & RADEON_TILING_MICRO) 467 DRM_ERROR("trying to scanout microtiled buffer\n"); 468 469 /* if scanout was in GTT this really wouldn't work */ 470 /* crtc offset is from display base addr not FB location */ 471 radeon_crtc->legacy_display_base_addr = rdev->mc.vram_start; 472 473 base -= radeon_crtc->legacy_display_base_addr; 474 475 crtc_offset_cntl = 0; 476 477 pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8); 478 crtc_pitch = (((pitch_pixels * target_fb->bits_per_pixel) + 479 ((target_fb->bits_per_pixel * 8) - 1)) / 480 (target_fb->bits_per_pixel * 8)); 481 crtc_pitch |= crtc_pitch << 16; 482 483 crtc_offset_cntl |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN; 484 if (tiling_flags & RADEON_TILING_MACRO) { 485 if (ASIC_IS_R300(rdev)) 486 crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN | 487 R300_CRTC_MICRO_TILE_BUFFER_DIS | 488 R300_CRTC_MACRO_TILE_EN); 489 else 490 crtc_offset_cntl |= RADEON_CRTC_TILE_EN; 491 } else { 492 if (ASIC_IS_R300(rdev)) 493 crtc_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN | 494 R300_CRTC_MICRO_TILE_BUFFER_DIS | 495 R300_CRTC_MACRO_TILE_EN); 496 else 497 crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN; 498 } 499 500 if (tiling_flags & RADEON_TILING_MACRO) { 501 if (ASIC_IS_R300(rdev)) { 502 crtc_tile_x0_y0 = x | (y << 16); 503 base &= ~0x7ff; 504 } else { 505 int byteshift = target_fb->bits_per_pixel >> 4; 506 int tile_addr = (((y >> 3) * pitch_pixels + x) >> (8 - byteshift)) << 11; 507 base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8); 508 crtc_offset_cntl |= (y % 16); 509 } 510 } else { 511 int offset = y * pitch_pixels + x; 512 switch (target_fb->bits_per_pixel) { 513 case 8: 514 offset *= 1; 515 break; 516 case 15: 517 case 16: 518 offset *= 2; 519 break; 520 case 24: 521 offset *= 3; 522 break; 523 case 32: 524 offset *= 4; 525 break; 526 default: 527 return false; 528 } 529 base += offset; 530 } 531 532 base &= ~7; 533 534 if (radeon_crtc->crtc_id == 1) 535 gen_cntl_reg = RADEON_CRTC2_GEN_CNTL; 536 else 537 gen_cntl_reg = RADEON_CRTC_GEN_CNTL; 538 539 gen_cntl_val = RREG32(gen_cntl_reg); 540 gen_cntl_val &= ~(0xf << 8); 541 gen_cntl_val |= (format << 8); 542 gen_cntl_val &= ~RADEON_CRTC_VSTAT_MODE_MASK; 543 WREG32(gen_cntl_reg, gen_cntl_val); 544 545 crtc_offset = (u32)base; 546 547 WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr); 548 549 if (ASIC_IS_R300(rdev)) { 550 if (radeon_crtc->crtc_id) 551 WREG32(R300_CRTC2_TILE_X0_Y0, crtc_tile_x0_y0); 552 else 553 WREG32(R300_CRTC_TILE_X0_Y0, crtc_tile_x0_y0); 554 } 555 WREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset, crtc_offset_cntl); 556 WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, crtc_offset); 557 WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch); 558 559 if (!atomic && fb && fb != crtc->primary->fb) { 560 radeon_fb = to_radeon_framebuffer(fb); 561 rbo = gem_to_radeon_bo(radeon_fb->obj); 562 r = radeon_bo_reserve(rbo, false); 563 if (unlikely(r != 0)) 564 return r; 565 radeon_bo_unpin(rbo); 566 radeon_bo_unreserve(rbo); 567 } 568 569 /* Bytes per pixel may have changed */ 570 radeon_bandwidth_update(rdev); 571 572 return 0; 573 } 574 575 static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mode *mode) 576 { 577 struct drm_device *dev = crtc->dev; 578 struct radeon_device *rdev = dev->dev_private; 579 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 580 struct drm_encoder *encoder; 581 int format; 582 int hsync_start; 583 int hsync_wid; 584 int vsync_wid; 585 uint32_t crtc_h_total_disp; 586 uint32_t crtc_h_sync_strt_wid; 587 uint32_t crtc_v_total_disp; 588 uint32_t crtc_v_sync_strt_wid; 589 bool is_tv = false; 590 591 DRM_DEBUG_KMS("\n"); 592 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 593 if (encoder->crtc == crtc) { 594 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 595 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) { 596 is_tv = true; 597 DRM_INFO("crtc %d is connected to a TV\n", radeon_crtc->crtc_id); 598 break; 599 } 600 } 601 } 602 603 switch (crtc->primary->fb->bits_per_pixel) { 604 case 8: 605 format = 2; 606 break; 607 case 15: /* 555 */ 608 format = 3; 609 break; 610 case 16: /* 565 */ 611 format = 4; 612 break; 613 case 24: /* RGB */ 614 format = 5; 615 break; 616 case 32: /* xRGB */ 617 format = 6; 618 break; 619 default: 620 return false; 621 } 622 623 crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff) 624 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16)); 625 626 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8; 627 if (!hsync_wid) 628 hsync_wid = 1; 629 hsync_start = mode->crtc_hsync_start - 8; 630 631 crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) 632 | ((hsync_wid & 0x3f) << 16) 633 | ((mode->flags & DRM_MODE_FLAG_NHSYNC) 634 ? RADEON_CRTC_H_SYNC_POL 635 : 0)); 636 637 /* This works for double scan mode. */ 638 crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff) 639 | ((mode->crtc_vdisplay - 1) << 16)); 640 641 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start; 642 if (!vsync_wid) 643 vsync_wid = 1; 644 645 crtc_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff) 646 | ((vsync_wid & 0x1f) << 16) 647 | ((mode->flags & DRM_MODE_FLAG_NVSYNC) 648 ? RADEON_CRTC_V_SYNC_POL 649 : 0)); 650 651 if (radeon_crtc->crtc_id) { 652 uint32_t crtc2_gen_cntl; 653 uint32_t disp2_merge_cntl; 654 655 /* if TV DAC is enabled for another crtc and keep it enabled */ 656 crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL) & 0x00718080; 657 crtc2_gen_cntl |= ((format << 8) 658 | RADEON_CRTC2_VSYNC_DIS 659 | RADEON_CRTC2_HSYNC_DIS 660 | RADEON_CRTC2_DISP_DIS 661 | RADEON_CRTC2_DISP_REQ_EN_B 662 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) 663 ? RADEON_CRTC2_DBL_SCAN_EN 664 : 0) 665 | ((mode->flags & DRM_MODE_FLAG_CSYNC) 666 ? RADEON_CRTC2_CSYNC_EN 667 : 0) 668 | ((mode->flags & DRM_MODE_FLAG_INTERLACE) 669 ? RADEON_CRTC2_INTERLACE_EN 670 : 0)); 671 672 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */ 673 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480)) 674 crtc2_gen_cntl |= RADEON_CRTC2_EN; 675 676 disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL); 677 disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN; 678 679 WREG32(RADEON_DISP2_MERGE_CNTL, disp2_merge_cntl); 680 WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); 681 682 WREG32(RADEON_FP_H2_SYNC_STRT_WID, crtc_h_sync_strt_wid); 683 WREG32(RADEON_FP_V2_SYNC_STRT_WID, crtc_v_sync_strt_wid); 684 } else { 685 uint32_t crtc_gen_cntl; 686 uint32_t crtc_ext_cntl; 687 uint32_t disp_merge_cntl; 688 689 crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL) & 0x00718000; 690 crtc_gen_cntl |= (RADEON_CRTC_EXT_DISP_EN 691 | (format << 8) 692 | RADEON_CRTC_DISP_REQ_EN_B 693 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN) 694 ? RADEON_CRTC_DBL_SCAN_EN 695 : 0) 696 | ((mode->flags & DRM_MODE_FLAG_CSYNC) 697 ? RADEON_CRTC_CSYNC_EN 698 : 0) 699 | ((mode->flags & DRM_MODE_FLAG_INTERLACE) 700 ? RADEON_CRTC_INTERLACE_EN 701 : 0)); 702 703 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */ 704 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480)) 705 crtc_gen_cntl |= RADEON_CRTC_EN; 706 707 crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL); 708 crtc_ext_cntl |= (RADEON_XCRT_CNT_EN | 709 RADEON_CRTC_VSYNC_DIS | 710 RADEON_CRTC_HSYNC_DIS | 711 RADEON_CRTC_DISPLAY_DIS); 712 713 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL); 714 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN; 715 716 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl); 717 WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl); 718 WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); 719 } 720 721 if (is_tv) 722 radeon_legacy_tv_adjust_crtc_reg(encoder, &crtc_h_total_disp, 723 &crtc_h_sync_strt_wid, &crtc_v_total_disp, 724 &crtc_v_sync_strt_wid); 725 726 WREG32(RADEON_CRTC_H_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_h_total_disp); 727 WREG32(RADEON_CRTC_H_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_h_sync_strt_wid); 728 WREG32(RADEON_CRTC_V_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_v_total_disp); 729 WREG32(RADEON_CRTC_V_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_v_sync_strt_wid); 730 731 return true; 732 } 733 734 static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode) 735 { 736 struct drm_device *dev = crtc->dev; 737 struct radeon_device *rdev = dev->dev_private; 738 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 739 struct drm_encoder *encoder; 740 uint32_t feedback_div = 0; 741 uint32_t frac_fb_div = 0; 742 uint32_t reference_div = 0; 743 uint32_t post_divider = 0; 744 uint32_t freq = 0; 745 uint8_t pll_gain; 746 bool use_bios_divs = false; 747 /* PLL registers */ 748 uint32_t pll_ref_div = 0; 749 uint32_t pll_fb_post_div = 0; 750 uint32_t htotal_cntl = 0; 751 bool is_tv = false; 752 struct radeon_pll *pll; 753 754 struct { 755 int divider; 756 int bitvalue; 757 } *post_div, post_divs[] = { 758 /* From RAGE 128 VR/RAGE 128 GL Register 759 * Reference Manual (Technical Reference 760 * Manual P/N RRG-G04100-C Rev. 0.04), page 761 * 3-17 (PLL_DIV_[3:0]). 762 */ 763 { 1, 0 }, /* VCLK_SRC */ 764 { 2, 1 }, /* VCLK_SRC/2 */ 765 { 4, 2 }, /* VCLK_SRC/4 */ 766 { 8, 3 }, /* VCLK_SRC/8 */ 767 { 3, 4 }, /* VCLK_SRC/3 */ 768 { 16, 5 }, /* VCLK_SRC/16 */ 769 { 6, 6 }, /* VCLK_SRC/6 */ 770 { 12, 7 }, /* VCLK_SRC/12 */ 771 { 0, 0 } 772 }; 773 774 if (radeon_crtc->crtc_id) 775 pll = &rdev->clock.p2pll; 776 else 777 pll = &rdev->clock.p1pll; 778 779 pll->flags = RADEON_PLL_LEGACY; 780 781 if (mode->clock > 200000) /* range limits??? */ 782 pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV; 783 else 784 pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV; 785 786 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 787 if (encoder->crtc == crtc) { 788 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 789 790 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) { 791 is_tv = true; 792 break; 793 } 794 795 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC) 796 pll->flags |= RADEON_PLL_NO_ODD_POST_DIV; 797 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) { 798 if (!rdev->is_atom_bios) { 799 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); 800 struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv; 801 if (lvds) { 802 if (lvds->use_bios_dividers) { 803 pll_ref_div = lvds->panel_ref_divider; 804 pll_fb_post_div = (lvds->panel_fb_divider | 805 (lvds->panel_post_divider << 16)); 806 htotal_cntl = 0; 807 use_bios_divs = true; 808 } 809 } 810 } 811 pll->flags |= RADEON_PLL_USE_REF_DIV; 812 } 813 } 814 } 815 816 DRM_DEBUG_KMS("\n"); 817 818 if (!use_bios_divs) { 819 radeon_compute_pll_legacy(pll, mode->clock, 820 &freq, &feedback_div, &frac_fb_div, 821 &reference_div, &post_divider); 822 823 for (post_div = &post_divs[0]; post_div->divider; ++post_div) { 824 if (post_div->divider == post_divider) 825 break; 826 } 827 828 if (!post_div->divider) 829 post_div = &post_divs[0]; 830 831 DRM_DEBUG_KMS("dc=%u, fd=%d, rd=%d, pd=%d\n", 832 (unsigned)freq, 833 feedback_div, 834 reference_div, 835 post_divider); 836 837 pll_ref_div = reference_div; 838 #if defined(__powerpc__) && (0) /* TODO */ 839 /* apparently programming this otherwise causes a hang??? */ 840 if (info->MacModel == RADEON_MAC_IBOOK) 841 pll_fb_post_div = 0x000600ad; 842 else 843 #endif 844 pll_fb_post_div = (feedback_div | (post_div->bitvalue << 16)); 845 846 htotal_cntl = mode->htotal & 0x7; 847 848 } 849 850 pll_gain = radeon_compute_pll_gain(pll->reference_freq, 851 pll_ref_div & 0x3ff, 852 pll_fb_post_div & 0x7ff); 853 854 if (radeon_crtc->crtc_id) { 855 uint32_t pixclks_cntl = ((RREG32_PLL(RADEON_PIXCLKS_CNTL) & 856 ~(RADEON_PIX2CLK_SRC_SEL_MASK)) | 857 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK); 858 859 if (is_tv) { 860 radeon_legacy_tv_adjust_pll2(encoder, &htotal_cntl, 861 &pll_ref_div, &pll_fb_post_div, 862 &pixclks_cntl); 863 } 864 865 WREG32_PLL_P(RADEON_PIXCLKS_CNTL, 866 RADEON_PIX2CLK_SRC_SEL_CPUCLK, 867 ~(RADEON_PIX2CLK_SRC_SEL_MASK)); 868 869 WREG32_PLL_P(RADEON_P2PLL_CNTL, 870 RADEON_P2PLL_RESET 871 | RADEON_P2PLL_ATOMIC_UPDATE_EN 872 | ((uint32_t)pll_gain << RADEON_P2PLL_PVG_SHIFT), 873 ~(RADEON_P2PLL_RESET 874 | RADEON_P2PLL_ATOMIC_UPDATE_EN 875 | RADEON_P2PLL_PVG_MASK)); 876 877 WREG32_PLL_P(RADEON_P2PLL_REF_DIV, 878 pll_ref_div, 879 ~RADEON_P2PLL_REF_DIV_MASK); 880 881 WREG32_PLL_P(RADEON_P2PLL_DIV_0, 882 pll_fb_post_div, 883 ~RADEON_P2PLL_FB0_DIV_MASK); 884 885 WREG32_PLL_P(RADEON_P2PLL_DIV_0, 886 pll_fb_post_div, 887 ~RADEON_P2PLL_POST0_DIV_MASK); 888 889 radeon_pll2_write_update(dev); 890 radeon_pll2_wait_for_read_update_complete(dev); 891 892 WREG32_PLL(RADEON_HTOTAL2_CNTL, htotal_cntl); 893 894 WREG32_PLL_P(RADEON_P2PLL_CNTL, 895 0, 896 ~(RADEON_P2PLL_RESET 897 | RADEON_P2PLL_SLEEP 898 | RADEON_P2PLL_ATOMIC_UPDATE_EN)); 899 900 DRM_DEBUG_KMS("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n", 901 (unsigned)pll_ref_div, 902 (unsigned)pll_fb_post_div, 903 (unsigned)htotal_cntl, 904 RREG32_PLL(RADEON_P2PLL_CNTL)); 905 DRM_DEBUG_KMS("Wrote2: rd=%u, fd=%u, pd=%u\n", 906 (unsigned)pll_ref_div & RADEON_P2PLL_REF_DIV_MASK, 907 (unsigned)pll_fb_post_div & RADEON_P2PLL_FB0_DIV_MASK, 908 (unsigned)((pll_fb_post_div & 909 RADEON_P2PLL_POST0_DIV_MASK) >> 16)); 910 911 mdelay(50); /* Let the clock to lock */ 912 913 WREG32_PLL_P(RADEON_PIXCLKS_CNTL, 914 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK, 915 ~(RADEON_PIX2CLK_SRC_SEL_MASK)); 916 917 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); 918 } else { 919 uint32_t pixclks_cntl; 920 921 922 if (is_tv) { 923 pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL); 924 radeon_legacy_tv_adjust_pll1(encoder, &htotal_cntl, &pll_ref_div, 925 &pll_fb_post_div, &pixclks_cntl); 926 } 927 928 if (rdev->flags & RADEON_IS_MOBILITY) { 929 /* A temporal workaround for the occasional blanking on certain laptop panels. 930 This appears to related to the PLL divider registers (fail to lock?). 931 It occurs even when all dividers are the same with their old settings. 932 In this case we really don't need to fiddle with PLL registers. 933 By doing this we can avoid the blanking problem with some panels. 934 */ 935 if ((pll_ref_div == (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_REF_DIV_MASK)) && 936 (pll_fb_post_div == (RREG32_PLL(RADEON_PPLL_DIV_3) & 937 (RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) { 938 WREG32_P(RADEON_CLOCK_CNTL_INDEX, 939 RADEON_PLL_DIV_SEL, 940 ~(RADEON_PLL_DIV_SEL)); 941 r100_pll_errata_after_index(rdev); 942 return; 943 } 944 } 945 946 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL, 947 RADEON_VCLK_SRC_SEL_CPUCLK, 948 ~(RADEON_VCLK_SRC_SEL_MASK)); 949 WREG32_PLL_P(RADEON_PPLL_CNTL, 950 RADEON_PPLL_RESET 951 | RADEON_PPLL_ATOMIC_UPDATE_EN 952 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN 953 | ((uint32_t)pll_gain << RADEON_PPLL_PVG_SHIFT), 954 ~(RADEON_PPLL_RESET 955 | RADEON_PPLL_ATOMIC_UPDATE_EN 956 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN 957 | RADEON_PPLL_PVG_MASK)); 958 959 WREG32_P(RADEON_CLOCK_CNTL_INDEX, 960 RADEON_PLL_DIV_SEL, 961 ~(RADEON_PLL_DIV_SEL)); 962 r100_pll_errata_after_index(rdev); 963 964 if (ASIC_IS_R300(rdev) || 965 (rdev->family == CHIP_RS300) || 966 (rdev->family == CHIP_RS400) || 967 (rdev->family == CHIP_RS480)) { 968 if (pll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) { 969 /* When restoring console mode, use saved PPLL_REF_DIV 970 * setting. 971 */ 972 WREG32_PLL_P(RADEON_PPLL_REF_DIV, 973 pll_ref_div, 974 0); 975 } else { 976 /* R300 uses ref_div_acc field as real ref divider */ 977 WREG32_PLL_P(RADEON_PPLL_REF_DIV, 978 (pll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT), 979 ~R300_PPLL_REF_DIV_ACC_MASK); 980 } 981 } else 982 WREG32_PLL_P(RADEON_PPLL_REF_DIV, 983 pll_ref_div, 984 ~RADEON_PPLL_REF_DIV_MASK); 985 986 WREG32_PLL_P(RADEON_PPLL_DIV_3, 987 pll_fb_post_div, 988 ~RADEON_PPLL_FB3_DIV_MASK); 989 990 WREG32_PLL_P(RADEON_PPLL_DIV_3, 991 pll_fb_post_div, 992 ~RADEON_PPLL_POST3_DIV_MASK); 993 994 radeon_pll_write_update(dev); 995 radeon_pll_wait_for_read_update_complete(dev); 996 997 WREG32_PLL(RADEON_HTOTAL_CNTL, htotal_cntl); 998 999 WREG32_PLL_P(RADEON_PPLL_CNTL, 1000 0, 1001 ~(RADEON_PPLL_RESET 1002 | RADEON_PPLL_SLEEP 1003 | RADEON_PPLL_ATOMIC_UPDATE_EN 1004 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN)); 1005 1006 DRM_DEBUG_KMS("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n", 1007 pll_ref_div, 1008 pll_fb_post_div, 1009 (unsigned)htotal_cntl, 1010 RREG32_PLL(RADEON_PPLL_CNTL)); 1011 DRM_DEBUG_KMS("Wrote: rd=%d, fd=%d, pd=%d\n", 1012 pll_ref_div & RADEON_PPLL_REF_DIV_MASK, 1013 pll_fb_post_div & RADEON_PPLL_FB3_DIV_MASK, 1014 (pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16); 1015 1016 mdelay(50); /* Let the clock to lock */ 1017 1018 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL, 1019 RADEON_VCLK_SRC_SEL_PPLLCLK, 1020 ~(RADEON_VCLK_SRC_SEL_MASK)); 1021 1022 if (is_tv) 1023 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl); 1024 } 1025 } 1026 1027 static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc, 1028 const struct drm_display_mode *mode, 1029 struct drm_display_mode *adjusted_mode) 1030 { 1031 if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode)) 1032 return false; 1033 return true; 1034 } 1035 1036 static int radeon_crtc_mode_set(struct drm_crtc *crtc, 1037 struct drm_display_mode *mode, 1038 struct drm_display_mode *adjusted_mode, 1039 int x, int y, struct drm_framebuffer *old_fb) 1040 { 1041 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); 1042 1043 /* TODO TV */ 1044 radeon_crtc_set_base(crtc, x, y, old_fb); 1045 radeon_set_crtc_timing(crtc, adjusted_mode); 1046 radeon_set_pll(crtc, adjusted_mode); 1047 radeon_overscan_setup(crtc, adjusted_mode); 1048 if (radeon_crtc->crtc_id == 0) { 1049 radeon_legacy_rmx_mode_set(crtc, adjusted_mode); 1050 } else { 1051 if (radeon_crtc->rmx_type != RMX_OFF) { 1052 /* FIXME: only first crtc has rmx what should we 1053 * do ? 1054 */ 1055 DRM_ERROR("Mode need scaling but only first crtc can do that.\n"); 1056 } 1057 } 1058 return 0; 1059 } 1060 1061 static void radeon_crtc_prepare(struct drm_crtc *crtc) 1062 { 1063 struct drm_device *dev = crtc->dev; 1064 struct drm_crtc *crtci; 1065 1066 /* 1067 * The hardware wedges sometimes if you reconfigure one CRTC 1068 * whilst another is running (see fdo bug #24611). 1069 */ 1070 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) 1071 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_OFF); 1072 } 1073 1074 static void radeon_crtc_commit(struct drm_crtc *crtc) 1075 { 1076 struct drm_device *dev = crtc->dev; 1077 struct drm_crtc *crtci; 1078 1079 /* 1080 * Reenable the CRTCs that should be running. 1081 */ 1082 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) { 1083 if (crtci->enabled) 1084 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON); 1085 } 1086 } 1087 1088 static void radeon_crtc_disable(struct drm_crtc *crtc) 1089 { 1090 radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); 1091 if (crtc->primary->fb) { 1092 int r; 1093 struct radeon_framebuffer *radeon_fb; 1094 struct radeon_bo *rbo; 1095 1096 radeon_fb = to_radeon_framebuffer(crtc->primary->fb); 1097 rbo = gem_to_radeon_bo(radeon_fb->obj); 1098 r = radeon_bo_reserve(rbo, false); 1099 if (unlikely(r)) 1100 DRM_ERROR("failed to reserve rbo before unpin\n"); 1101 else { 1102 radeon_bo_unpin(rbo); 1103 radeon_bo_unreserve(rbo); 1104 } 1105 } 1106 } 1107 1108 static const struct drm_crtc_helper_funcs legacy_helper_funcs = { 1109 .dpms = radeon_crtc_dpms, 1110 .mode_fixup = radeon_crtc_mode_fixup, 1111 .mode_set = radeon_crtc_mode_set, 1112 .mode_set_base = radeon_crtc_set_base, 1113 .mode_set_base_atomic = radeon_crtc_set_base_atomic, 1114 .prepare = radeon_crtc_prepare, 1115 .commit = radeon_crtc_commit, 1116 .load_lut = radeon_crtc_load_lut, 1117 .disable = radeon_crtc_disable 1118 }; 1119 1120 1121 void radeon_legacy_init_crtc(struct drm_device *dev, 1122 struct radeon_crtc *radeon_crtc) 1123 { 1124 if (radeon_crtc->crtc_id == 1) 1125 radeon_crtc->crtc_offset = RADEON_CRTC2_H_TOTAL_DISP - RADEON_CRTC_H_TOTAL_DISP; 1126 drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs); 1127 } 1128