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Merge tag 'msm-dt-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpu / drm / radeon / radeon_display.c
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 "drmP.h"
27 #include "radeon_drm.h"
28 #include "radeon.h"
29
30 #include "atom.h"
31 #include <asm/div64.h>
32
33 #include "drm_crtc_helper.h"
34 #include "drm_edid.h"
35
36 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
37 {
38 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
39 struct drm_device *dev = crtc->dev;
40 struct radeon_device *rdev = dev->dev_private;
41 int i;
42
43 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
44 WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0);
45
46 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
47 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
48 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
49
50 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
51 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
52 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
53
54 WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id);
55 WREG32(AVIVO_DC_LUT_RW_MODE, 0);
56 WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f);
57
58 WREG8(AVIVO_DC_LUT_RW_INDEX, 0);
59 for (i = 0; i < 256; i++) {
60 WREG32(AVIVO_DC_LUT_30_COLOR,
61 (radeon_crtc->lut_r[i] << 20) |
62 (radeon_crtc->lut_g[i] << 10) |
63 (radeon_crtc->lut_b[i] << 0));
64 }
65
66 WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
67 }
68
69 static void dce4_crtc_load_lut(struct drm_crtc *crtc)
70 {
71 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
72 struct drm_device *dev = crtc->dev;
73 struct radeon_device *rdev = dev->dev_private;
74 int i;
75
76 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
77 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
78
79 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
80 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
81 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
82
83 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
84 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
85 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
86
87 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
88 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
89
90 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
91 for (i = 0; i < 256; i++) {
92 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
93 (radeon_crtc->lut_r[i] << 20) |
94 (radeon_crtc->lut_g[i] << 10) |
95 (radeon_crtc->lut_b[i] << 0));
96 }
97 }
98
99 static void dce5_crtc_load_lut(struct drm_crtc *crtc)
100 {
101 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
102 struct drm_device *dev = crtc->dev;
103 struct radeon_device *rdev = dev->dev_private;
104 int i;
105
106 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
107
108 WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
109 (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) |
110 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS)));
111 WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset,
112 NI_GRPH_PRESCALE_BYPASS);
113 WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset,
114 NI_OVL_PRESCALE_BYPASS);
115 WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset,
116 (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) |
117 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT)));
118
119 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
120
121 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
122 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
123 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
124
125 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
126 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
127 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
128
129 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
130 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
131
132 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
133 for (i = 0; i < 256; i++) {
134 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
135 (radeon_crtc->lut_r[i] << 20) |
136 (radeon_crtc->lut_g[i] << 10) |
137 (radeon_crtc->lut_b[i] << 0));
138 }
139
140 WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset,
141 (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
142 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
143 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
144 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS)));
145 WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset,
146 (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) |
147 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS)));
148 WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset,
149 (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) |
150 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS)));
151 WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
152 (NI_OUTPUT_CSC_GRPH_MODE(NI_OUTPUT_CSC_BYPASS) |
153 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS)));
154 /* XXX match this to the depth of the crtc fmt block, move to modeset? */
155 WREG32(0x6940 + radeon_crtc->crtc_offset, 0);
156
157 }
158
159 static void legacy_crtc_load_lut(struct drm_crtc *crtc)
160 {
161 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
162 struct drm_device *dev = crtc->dev;
163 struct radeon_device *rdev = dev->dev_private;
164 int i;
165 uint32_t dac2_cntl;
166
167 dac2_cntl = RREG32(RADEON_DAC_CNTL2);
168 if (radeon_crtc->crtc_id == 0)
169 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
170 else
171 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL;
172 WREG32(RADEON_DAC_CNTL2, dac2_cntl);
173
174 WREG8(RADEON_PALETTE_INDEX, 0);
175 for (i = 0; i < 256; i++) {
176 WREG32(RADEON_PALETTE_30_DATA,
177 (radeon_crtc->lut_r[i] << 20) |
178 (radeon_crtc->lut_g[i] << 10) |
179 (radeon_crtc->lut_b[i] << 0));
180 }
181 }
182
183 void radeon_crtc_load_lut(struct drm_crtc *crtc)
184 {
185 struct drm_device *dev = crtc->dev;
186 struct radeon_device *rdev = dev->dev_private;
187
188 if (!crtc->enabled)
189 return;
190
191 if (ASIC_IS_DCE5(rdev))
192 dce5_crtc_load_lut(crtc);
193 else if (ASIC_IS_DCE4(rdev))
194 dce4_crtc_load_lut(crtc);
195 else if (ASIC_IS_AVIVO(rdev))
196 avivo_crtc_load_lut(crtc);
197 else
198 legacy_crtc_load_lut(crtc);
199 }
200
201 /** Sets the color ramps on behalf of fbcon */
202 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
203 u16 blue, int regno)
204 {
205 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
206
207 radeon_crtc->lut_r[regno] = red >> 6;
208 radeon_crtc->lut_g[regno] = green >> 6;
209 radeon_crtc->lut_b[regno] = blue >> 6;
210 }
211
212 /** Gets the color ramps on behalf of fbcon */
213 void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
214 u16 *blue, int regno)
215 {
216 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
217
218 *red = radeon_crtc->lut_r[regno] << 6;
219 *green = radeon_crtc->lut_g[regno] << 6;
220 *blue = radeon_crtc->lut_b[regno] << 6;
221 }
222
223 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
224 u16 *blue, uint32_t start, uint32_t size)
225 {
226 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
227 int end = (start + size > 256) ? 256 : start + size, i;
228
229 /* userspace palettes are always correct as is */
230 for (i = start; i < end; i++) {
231 radeon_crtc->lut_r[i] = red[i] >> 6;
232 radeon_crtc->lut_g[i] = green[i] >> 6;
233 radeon_crtc->lut_b[i] = blue[i] >> 6;
234 }
235 radeon_crtc_load_lut(crtc);
236 }
237
238 static void radeon_crtc_destroy(struct drm_crtc *crtc)
239 {
240 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
241
242 drm_crtc_cleanup(crtc);
243 kfree(radeon_crtc);
244 }
245
246 /*
247 * Handle unpin events outside the interrupt handler proper.
248 */
249 static void radeon_unpin_work_func(struct work_struct *__work)
250 {
251 struct radeon_unpin_work *work =
252 container_of(__work, struct radeon_unpin_work, work);
253 int r;
254
255 /* unpin of the old buffer */
256 r = radeon_bo_reserve(work->old_rbo, false);
257 if (likely(r == 0)) {
258 r = radeon_bo_unpin(work->old_rbo);
259 if (unlikely(r != 0)) {
260 DRM_ERROR("failed to unpin buffer after flip\n");
261 }
262 radeon_bo_unreserve(work->old_rbo);
263 } else
264 DRM_ERROR("failed to reserve buffer after flip\n");
265
266 drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base);
267 kfree(work);
268 }
269
270 void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
271 {
272 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
273 struct radeon_unpin_work *work;
274 struct drm_pending_vblank_event *e;
275 struct timeval now;
276 unsigned long flags;
277 u32 update_pending;
278 int vpos, hpos;
279
280 spin_lock_irqsave(&rdev->ddev->event_lock, flags);
281 work = radeon_crtc->unpin_work;
282 if (work == NULL ||
283 (work->fence && !radeon_fence_signaled(work->fence))) {
284 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
285 return;
286 }
287 /* New pageflip, or just completion of a previous one? */
288 if (!radeon_crtc->deferred_flip_completion) {
289 /* do the flip (mmio) */
290 update_pending = radeon_page_flip(rdev, crtc_id, work->new_crtc_base);
291 } else {
292 /* This is just a completion of a flip queued in crtc
293 * at last invocation. Make sure we go directly to
294 * completion routine.
295 */
296 update_pending = 0;
297 radeon_crtc->deferred_flip_completion = 0;
298 }
299
300 /* Has the pageflip already completed in crtc, or is it certain
301 * to complete in this vblank?
302 */
303 if (update_pending &&
304 (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id,
305 &vpos, &hpos)) &&
306 ((vpos >= (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100) ||
307 (vpos < 0 && !ASIC_IS_AVIVO(rdev)))) {
308 /* crtc didn't flip in this target vblank interval,
309 * but flip is pending in crtc. Based on the current
310 * scanout position we know that the current frame is
311 * (nearly) complete and the flip will (likely)
312 * complete before the start of the next frame.
313 */
314 update_pending = 0;
315 }
316 if (update_pending) {
317 /* crtc didn't flip in this target vblank interval,
318 * but flip is pending in crtc. It will complete it
319 * in next vblank interval, so complete the flip at
320 * next vblank irq.
321 */
322 radeon_crtc->deferred_flip_completion = 1;
323 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
324 return;
325 }
326
327 /* Pageflip (will be) certainly completed in this vblank. Clean up. */
328 radeon_crtc->unpin_work = NULL;
329
330 /* wakeup userspace */
331 if (work->event) {
332 e = work->event;
333 e->event.sequence = drm_vblank_count_and_time(rdev->ddev, crtc_id, &now);
334 e->event.tv_sec = now.tv_sec;
335 e->event.tv_usec = now.tv_usec;
336 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
337 wake_up_interruptible(&e->base.file_priv->event_wait);
338 }
339 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
340
341 drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id);
342 radeon_fence_unref(&work->fence);
343 radeon_post_page_flip(work->rdev, work->crtc_id);
344 schedule_work(&work->work);
345 }
346
347 static int radeon_crtc_page_flip(struct drm_crtc *crtc,
348 struct drm_framebuffer *fb,
349 struct drm_pending_vblank_event *event)
350 {
351 struct drm_device *dev = crtc->dev;
352 struct radeon_device *rdev = dev->dev_private;
353 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
354 struct radeon_framebuffer *old_radeon_fb;
355 struct radeon_framebuffer *new_radeon_fb;
356 struct drm_gem_object *obj;
357 struct radeon_bo *rbo;
358 struct radeon_unpin_work *work;
359 unsigned long flags;
360 u32 tiling_flags, pitch_pixels;
361 u64 base;
362 int r;
363
364 work = kzalloc(sizeof *work, GFP_KERNEL);
365 if (work == NULL)
366 return -ENOMEM;
367
368 work->event = event;
369 work->rdev = rdev;
370 work->crtc_id = radeon_crtc->crtc_id;
371 old_radeon_fb = to_radeon_framebuffer(crtc->fb);
372 new_radeon_fb = to_radeon_framebuffer(fb);
373 /* schedule unpin of the old buffer */
374 obj = old_radeon_fb->obj;
375 /* take a reference to the old object */
376 drm_gem_object_reference(obj);
377 rbo = gem_to_radeon_bo(obj);
378 work->old_rbo = rbo;
379 obj = new_radeon_fb->obj;
380 rbo = gem_to_radeon_bo(obj);
381 if (rbo->tbo.sync_obj)
382 work->fence = radeon_fence_ref(rbo->tbo.sync_obj);
383 INIT_WORK(&work->work, radeon_unpin_work_func);
384
385 /* We borrow the event spin lock for protecting unpin_work */
386 spin_lock_irqsave(&dev->event_lock, flags);
387 if (radeon_crtc->unpin_work) {
388 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
389 r = -EBUSY;
390 goto unlock_free;
391 }
392 radeon_crtc->unpin_work = work;
393 radeon_crtc->deferred_flip_completion = 0;
394 spin_unlock_irqrestore(&dev->event_lock, flags);
395
396 /* pin the new buffer */
397 DRM_DEBUG_DRIVER("flip-ioctl() cur_fbo = %p, cur_bbo = %p\n",
398 work->old_rbo, rbo);
399
400 r = radeon_bo_reserve(rbo, false);
401 if (unlikely(r != 0)) {
402 DRM_ERROR("failed to reserve new rbo buffer before flip\n");
403 goto pflip_cleanup;
404 }
405 /* Only 27 bit offset for legacy CRTC */
406 r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM,
407 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, &base);
408 if (unlikely(r != 0)) {
409 radeon_bo_unreserve(rbo);
410 r = -EINVAL;
411 DRM_ERROR("failed to pin new rbo buffer before flip\n");
412 goto pflip_cleanup;
413 }
414 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
415 radeon_bo_unreserve(rbo);
416
417 if (!ASIC_IS_AVIVO(rdev)) {
418 /* crtc offset is from display base addr not FB location */
419 base -= radeon_crtc->legacy_display_base_addr;
420 pitch_pixels = fb->pitches[0] / (fb->bits_per_pixel / 8);
421
422 if (tiling_flags & RADEON_TILING_MACRO) {
423 if (ASIC_IS_R300(rdev)) {
424 base &= ~0x7ff;
425 } else {
426 int byteshift = fb->bits_per_pixel >> 4;
427 int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11;
428 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8);
429 }
430 } else {
431 int offset = crtc->y * pitch_pixels + crtc->x;
432 switch (fb->bits_per_pixel) {
433 case 8:
434 default:
435 offset *= 1;
436 break;
437 case 15:
438 case 16:
439 offset *= 2;
440 break;
441 case 24:
442 offset *= 3;
443 break;
444 case 32:
445 offset *= 4;
446 break;
447 }
448 base += offset;
449 }
450 base &= ~7;
451 }
452
453 spin_lock_irqsave(&dev->event_lock, flags);
454 work->new_crtc_base = base;
455 spin_unlock_irqrestore(&dev->event_lock, flags);
456
457 /* update crtc fb */
458 crtc->fb = fb;
459
460 r = drm_vblank_get(dev, radeon_crtc->crtc_id);
461 if (r) {
462 DRM_ERROR("failed to get vblank before flip\n");
463 goto pflip_cleanup1;
464 }
465
466 /* set the proper interrupt */
467 radeon_pre_page_flip(rdev, radeon_crtc->crtc_id);
468
469 return 0;
470
471 pflip_cleanup1:
472 if (unlikely(radeon_bo_reserve(rbo, false) != 0)) {
473 DRM_ERROR("failed to reserve new rbo in error path\n");
474 goto pflip_cleanup;
475 }
476 if (unlikely(radeon_bo_unpin(rbo) != 0)) {
477 DRM_ERROR("failed to unpin new rbo in error path\n");
478 }
479 radeon_bo_unreserve(rbo);
480
481 pflip_cleanup:
482 spin_lock_irqsave(&dev->event_lock, flags);
483 radeon_crtc->unpin_work = NULL;
484 unlock_free:
485 spin_unlock_irqrestore(&dev->event_lock, flags);
486 drm_gem_object_unreference_unlocked(old_radeon_fb->obj);
487 radeon_fence_unref(&work->fence);
488 kfree(work);
489
490 return r;
491 }
492
493 static const struct drm_crtc_funcs radeon_crtc_funcs = {
494 .cursor_set = radeon_crtc_cursor_set,
495 .cursor_move = radeon_crtc_cursor_move,
496 .gamma_set = radeon_crtc_gamma_set,
497 .set_config = drm_crtc_helper_set_config,
498 .destroy = radeon_crtc_destroy,
499 .page_flip = radeon_crtc_page_flip,
500 };
501
502 static void radeon_crtc_init(struct drm_device *dev, int index)
503 {
504 struct radeon_device *rdev = dev->dev_private;
505 struct radeon_crtc *radeon_crtc;
506 int i;
507
508 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
509 if (radeon_crtc == NULL)
510 return;
511
512 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
513
514 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
515 radeon_crtc->crtc_id = index;
516 rdev->mode_info.crtcs[index] = radeon_crtc;
517
518 #if 0
519 radeon_crtc->mode_set.crtc = &radeon_crtc->base;
520 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
521 radeon_crtc->mode_set.num_connectors = 0;
522 #endif
523
524 for (i = 0; i < 256; i++) {
525 radeon_crtc->lut_r[i] = i << 2;
526 radeon_crtc->lut_g[i] = i << 2;
527 radeon_crtc->lut_b[i] = i << 2;
528 }
529
530 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom))
531 radeon_atombios_init_crtc(dev, radeon_crtc);
532 else
533 radeon_legacy_init_crtc(dev, radeon_crtc);
534 }
535
536 static const char *encoder_names[37] = {
537 "NONE",
538 "INTERNAL_LVDS",
539 "INTERNAL_TMDS1",
540 "INTERNAL_TMDS2",
541 "INTERNAL_DAC1",
542 "INTERNAL_DAC2",
543 "INTERNAL_SDVOA",
544 "INTERNAL_SDVOB",
545 "SI170B",
546 "CH7303",
547 "CH7301",
548 "INTERNAL_DVO1",
549 "EXTERNAL_SDVOA",
550 "EXTERNAL_SDVOB",
551 "TITFP513",
552 "INTERNAL_LVTM1",
553 "VT1623",
554 "HDMI_SI1930",
555 "HDMI_INTERNAL",
556 "INTERNAL_KLDSCP_TMDS1",
557 "INTERNAL_KLDSCP_DVO1",
558 "INTERNAL_KLDSCP_DAC1",
559 "INTERNAL_KLDSCP_DAC2",
560 "SI178",
561 "MVPU_FPGA",
562 "INTERNAL_DDI",
563 "VT1625",
564 "HDMI_SI1932",
565 "DP_AN9801",
566 "DP_DP501",
567 "INTERNAL_UNIPHY",
568 "INTERNAL_KLDSCP_LVTMA",
569 "INTERNAL_UNIPHY1",
570 "INTERNAL_UNIPHY2",
571 "NUTMEG",
572 "TRAVIS",
573 "INTERNAL_VCE"
574 };
575
576 static const char *hpd_names[6] = {
577 "HPD1",
578 "HPD2",
579 "HPD3",
580 "HPD4",
581 "HPD5",
582 "HPD6",
583 };
584
585 static void radeon_print_display_setup(struct drm_device *dev)
586 {
587 struct drm_connector *connector;
588 struct radeon_connector *radeon_connector;
589 struct drm_encoder *encoder;
590 struct radeon_encoder *radeon_encoder;
591 uint32_t devices;
592 int i = 0;
593
594 DRM_INFO("Radeon Display Connectors\n");
595 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
596 radeon_connector = to_radeon_connector(connector);
597 DRM_INFO("Connector %d:\n", i);
598 DRM_INFO(" %s\n", drm_get_connector_name(connector));
599 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
600 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]);
601 if (radeon_connector->ddc_bus) {
602 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
603 radeon_connector->ddc_bus->rec.mask_clk_reg,
604 radeon_connector->ddc_bus->rec.mask_data_reg,
605 radeon_connector->ddc_bus->rec.a_clk_reg,
606 radeon_connector->ddc_bus->rec.a_data_reg,
607 radeon_connector->ddc_bus->rec.en_clk_reg,
608 radeon_connector->ddc_bus->rec.en_data_reg,
609 radeon_connector->ddc_bus->rec.y_clk_reg,
610 radeon_connector->ddc_bus->rec.y_data_reg);
611 if (radeon_connector->router.ddc_valid)
612 DRM_INFO(" DDC Router 0x%x/0x%x\n",
613 radeon_connector->router.ddc_mux_control_pin,
614 radeon_connector->router.ddc_mux_state);
615 if (radeon_connector->router.cd_valid)
616 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n",
617 radeon_connector->router.cd_mux_control_pin,
618 radeon_connector->router.cd_mux_state);
619 } else {
620 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
621 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
622 connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
623 connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
624 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
625 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
626 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
627 }
628 DRM_INFO(" Encoders:\n");
629 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
630 radeon_encoder = to_radeon_encoder(encoder);
631 devices = radeon_encoder->devices & radeon_connector->devices;
632 if (devices) {
633 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
634 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
635 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
636 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
637 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
638 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
639 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
640 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
641 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
642 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
643 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
644 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
645 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
646 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
647 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
648 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
649 if (devices & ATOM_DEVICE_DFP6_SUPPORT)
650 DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]);
651 if (devices & ATOM_DEVICE_TV1_SUPPORT)
652 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
653 if (devices & ATOM_DEVICE_CV_SUPPORT)
654 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
655 }
656 }
657 i++;
658 }
659 }
660
661 static bool radeon_setup_enc_conn(struct drm_device *dev)
662 {
663 struct radeon_device *rdev = dev->dev_private;
664 bool ret = false;
665
666 if (rdev->bios) {
667 if (rdev->is_atom_bios) {
668 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
669 if (ret == false)
670 ret = radeon_get_atom_connector_info_from_object_table(dev);
671 } else {
672 ret = radeon_get_legacy_connector_info_from_bios(dev);
673 if (ret == false)
674 ret = radeon_get_legacy_connector_info_from_table(dev);
675 }
676 } else {
677 if (!ASIC_IS_AVIVO(rdev))
678 ret = radeon_get_legacy_connector_info_from_table(dev);
679 }
680 if (ret) {
681 radeon_setup_encoder_clones(dev);
682 radeon_print_display_setup(dev);
683 }
684
685 return ret;
686 }
687
688 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
689 {
690 struct drm_device *dev = radeon_connector->base.dev;
691 struct radeon_device *rdev = dev->dev_private;
692 int ret = 0;
693
694 /* on hw with routers, select right port */
695 if (radeon_connector->router.ddc_valid)
696 radeon_router_select_ddc_port(radeon_connector);
697
698 if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
699 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP) ||
700 (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector->base) !=
701 ENCODER_OBJECT_ID_NONE)) {
702 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
703
704 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
705 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
706 radeon_connector->edid = drm_get_edid(&radeon_connector->base,
707 &dig->dp_i2c_bus->adapter);
708 else if (radeon_connector->ddc_bus && !radeon_connector->edid)
709 radeon_connector->edid = drm_get_edid(&radeon_connector->base,
710 &radeon_connector->ddc_bus->adapter);
711 } else {
712 if (radeon_connector->ddc_bus && !radeon_connector->edid)
713 radeon_connector->edid = drm_get_edid(&radeon_connector->base,
714 &radeon_connector->ddc_bus->adapter);
715 }
716
717 if (!radeon_connector->edid) {
718 if (rdev->is_atom_bios) {
719 /* some laptops provide a hardcoded edid in rom for LCDs */
720 if (((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_LVDS) ||
721 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)))
722 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
723 } else
724 /* some servers provide a hardcoded edid in rom for KVMs */
725 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
726 }
727 if (radeon_connector->edid) {
728 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
729 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
730 return ret;
731 }
732 drm_mode_connector_update_edid_property(&radeon_connector->base, NULL);
733 return 0;
734 }
735
736 /* avivo */
737 static void avivo_get_fb_div(struct radeon_pll *pll,
738 u32 target_clock,
739 u32 post_div,
740 u32 ref_div,
741 u32 *fb_div,
742 u32 *frac_fb_div)
743 {
744 u32 tmp = post_div * ref_div;
745
746 tmp *= target_clock;
747 *fb_div = tmp / pll->reference_freq;
748 *frac_fb_div = tmp % pll->reference_freq;
749
750 if (*fb_div > pll->max_feedback_div)
751 *fb_div = pll->max_feedback_div;
752 else if (*fb_div < pll->min_feedback_div)
753 *fb_div = pll->min_feedback_div;
754 }
755
756 static u32 avivo_get_post_div(struct radeon_pll *pll,
757 u32 target_clock)
758 {
759 u32 vco, post_div, tmp;
760
761 if (pll->flags & RADEON_PLL_USE_POST_DIV)
762 return pll->post_div;
763
764 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) {
765 if (pll->flags & RADEON_PLL_IS_LCD)
766 vco = pll->lcd_pll_out_min;
767 else
768 vco = pll->pll_out_min;
769 } else {
770 if (pll->flags & RADEON_PLL_IS_LCD)
771 vco = pll->lcd_pll_out_max;
772 else
773 vco = pll->pll_out_max;
774 }
775
776 post_div = vco / target_clock;
777 tmp = vco % target_clock;
778
779 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) {
780 if (tmp)
781 post_div++;
782 } else {
783 if (!tmp)
784 post_div--;
785 }
786
787 if (post_div > pll->max_post_div)
788 post_div = pll->max_post_div;
789 else if (post_div < pll->min_post_div)
790 post_div = pll->min_post_div;
791
792 return post_div;
793 }
794
795 #define MAX_TOLERANCE 10
796
797 void radeon_compute_pll_avivo(struct radeon_pll *pll,
798 u32 freq,
799 u32 *dot_clock_p,
800 u32 *fb_div_p,
801 u32 *frac_fb_div_p,
802 u32 *ref_div_p,
803 u32 *post_div_p)
804 {
805 u32 target_clock = freq / 10;
806 u32 post_div = avivo_get_post_div(pll, target_clock);
807 u32 ref_div = pll->min_ref_div;
808 u32 fb_div = 0, frac_fb_div = 0, tmp;
809
810 if (pll->flags & RADEON_PLL_USE_REF_DIV)
811 ref_div = pll->reference_div;
812
813 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
814 avivo_get_fb_div(pll, target_clock, post_div, ref_div, &fb_div, &frac_fb_div);
815 frac_fb_div = (100 * frac_fb_div) / pll->reference_freq;
816 if (frac_fb_div >= 5) {
817 frac_fb_div -= 5;
818 frac_fb_div = frac_fb_div / 10;
819 frac_fb_div++;
820 }
821 if (frac_fb_div >= 10) {
822 fb_div++;
823 frac_fb_div = 0;
824 }
825 } else {
826 while (ref_div <= pll->max_ref_div) {
827 avivo_get_fb_div(pll, target_clock, post_div, ref_div,
828 &fb_div, &frac_fb_div);
829 if (frac_fb_div >= (pll->reference_freq / 2))
830 fb_div++;
831 frac_fb_div = 0;
832 tmp = (pll->reference_freq * fb_div) / (post_div * ref_div);
833 tmp = (tmp * 10000) / target_clock;
834
835 if (tmp > (10000 + MAX_TOLERANCE))
836 ref_div++;
837 else if (tmp >= (10000 - MAX_TOLERANCE))
838 break;
839 else
840 ref_div++;
841 }
842 }
843
844 *dot_clock_p = ((pll->reference_freq * fb_div * 10) + (pll->reference_freq * frac_fb_div)) /
845 (ref_div * post_div * 10);
846 *fb_div_p = fb_div;
847 *frac_fb_div_p = frac_fb_div;
848 *ref_div_p = ref_div;
849 *post_div_p = post_div;
850 DRM_DEBUG_KMS("%d, pll dividers - fb: %d.%d ref: %d, post %d\n",
851 *dot_clock_p, fb_div, frac_fb_div, ref_div, post_div);
852 }
853
854 /* pre-avivo */
855 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
856 {
857 uint64_t mod;
858
859 n += d / 2;
860
861 mod = do_div(n, d);
862 return n;
863 }
864
865 void radeon_compute_pll_legacy(struct radeon_pll *pll,
866 uint64_t freq,
867 uint32_t *dot_clock_p,
868 uint32_t *fb_div_p,
869 uint32_t *frac_fb_div_p,
870 uint32_t *ref_div_p,
871 uint32_t *post_div_p)
872 {
873 uint32_t min_ref_div = pll->min_ref_div;
874 uint32_t max_ref_div = pll->max_ref_div;
875 uint32_t min_post_div = pll->min_post_div;
876 uint32_t max_post_div = pll->max_post_div;
877 uint32_t min_fractional_feed_div = 0;
878 uint32_t max_fractional_feed_div = 0;
879 uint32_t best_vco = pll->best_vco;
880 uint32_t best_post_div = 1;
881 uint32_t best_ref_div = 1;
882 uint32_t best_feedback_div = 1;
883 uint32_t best_frac_feedback_div = 0;
884 uint32_t best_freq = -1;
885 uint32_t best_error = 0xffffffff;
886 uint32_t best_vco_diff = 1;
887 uint32_t post_div;
888 u32 pll_out_min, pll_out_max;
889
890 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
891 freq = freq * 1000;
892
893 if (pll->flags & RADEON_PLL_IS_LCD) {
894 pll_out_min = pll->lcd_pll_out_min;
895 pll_out_max = pll->lcd_pll_out_max;
896 } else {
897 pll_out_min = pll->pll_out_min;
898 pll_out_max = pll->pll_out_max;
899 }
900
901 if (pll_out_min > 64800)
902 pll_out_min = 64800;
903
904 if (pll->flags & RADEON_PLL_USE_REF_DIV)
905 min_ref_div = max_ref_div = pll->reference_div;
906 else {
907 while (min_ref_div < max_ref_div-1) {
908 uint32_t mid = (min_ref_div + max_ref_div) / 2;
909 uint32_t pll_in = pll->reference_freq / mid;
910 if (pll_in < pll->pll_in_min)
911 max_ref_div = mid;
912 else if (pll_in > pll->pll_in_max)
913 min_ref_div = mid;
914 else
915 break;
916 }
917 }
918
919 if (pll->flags & RADEON_PLL_USE_POST_DIV)
920 min_post_div = max_post_div = pll->post_div;
921
922 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
923 min_fractional_feed_div = pll->min_frac_feedback_div;
924 max_fractional_feed_div = pll->max_frac_feedback_div;
925 }
926
927 for (post_div = max_post_div; post_div >= min_post_div; --post_div) {
928 uint32_t ref_div;
929
930 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
931 continue;
932
933 /* legacy radeons only have a few post_divs */
934 if (pll->flags & RADEON_PLL_LEGACY) {
935 if ((post_div == 5) ||
936 (post_div == 7) ||
937 (post_div == 9) ||
938 (post_div == 10) ||
939 (post_div == 11) ||
940 (post_div == 13) ||
941 (post_div == 14) ||
942 (post_div == 15))
943 continue;
944 }
945
946 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
947 uint32_t feedback_div, current_freq = 0, error, vco_diff;
948 uint32_t pll_in = pll->reference_freq / ref_div;
949 uint32_t min_feed_div = pll->min_feedback_div;
950 uint32_t max_feed_div = pll->max_feedback_div + 1;
951
952 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
953 continue;
954
955 while (min_feed_div < max_feed_div) {
956 uint32_t vco;
957 uint32_t min_frac_feed_div = min_fractional_feed_div;
958 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
959 uint32_t frac_feedback_div;
960 uint64_t tmp;
961
962 feedback_div = (min_feed_div + max_feed_div) / 2;
963
964 tmp = (uint64_t)pll->reference_freq * feedback_div;
965 vco = radeon_div(tmp, ref_div);
966
967 if (vco < pll_out_min) {
968 min_feed_div = feedback_div + 1;
969 continue;
970 } else if (vco > pll_out_max) {
971 max_feed_div = feedback_div;
972 continue;
973 }
974
975 while (min_frac_feed_div < max_frac_feed_div) {
976 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
977 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
978 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
979 current_freq = radeon_div(tmp, ref_div * post_div);
980
981 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
982 if (freq < current_freq)
983 error = 0xffffffff;
984 else
985 error = freq - current_freq;
986 } else
987 error = abs(current_freq - freq);
988 vco_diff = abs(vco - best_vco);
989
990 if ((best_vco == 0 && error < best_error) ||
991 (best_vco != 0 &&
992 ((best_error > 100 && error < best_error - 100) ||
993 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
994 best_post_div = post_div;
995 best_ref_div = ref_div;
996 best_feedback_div = feedback_div;
997 best_frac_feedback_div = frac_feedback_div;
998 best_freq = current_freq;
999 best_error = error;
1000 best_vco_diff = vco_diff;
1001 } else if (current_freq == freq) {
1002 if (best_freq == -1) {
1003 best_post_div = post_div;
1004 best_ref_div = ref_div;
1005 best_feedback_div = feedback_div;
1006 best_frac_feedback_div = frac_feedback_div;
1007 best_freq = current_freq;
1008 best_error = error;
1009 best_vco_diff = vco_diff;
1010 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
1011 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
1012 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
1013 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
1014 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
1015 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
1016 best_post_div = post_div;
1017 best_ref_div = ref_div;
1018 best_feedback_div = feedback_div;
1019 best_frac_feedback_div = frac_feedback_div;
1020 best_freq = current_freq;
1021 best_error = error;
1022 best_vco_diff = vco_diff;
1023 }
1024 }
1025 if (current_freq < freq)
1026 min_frac_feed_div = frac_feedback_div + 1;
1027 else
1028 max_frac_feed_div = frac_feedback_div;
1029 }
1030 if (current_freq < freq)
1031 min_feed_div = feedback_div + 1;
1032 else
1033 max_feed_div = feedback_div;
1034 }
1035 }
1036 }
1037
1038 *dot_clock_p = best_freq / 10000;
1039 *fb_div_p = best_feedback_div;
1040 *frac_fb_div_p = best_frac_feedback_div;
1041 *ref_div_p = best_ref_div;
1042 *post_div_p = best_post_div;
1043 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1044 (long long)freq,
1045 best_freq / 1000, best_feedback_div, best_frac_feedback_div,
1046 best_ref_div, best_post_div);
1047
1048 }
1049
1050 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
1051 {
1052 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
1053
1054 if (radeon_fb->obj) {
1055 drm_gem_object_unreference_unlocked(radeon_fb->obj);
1056 }
1057 drm_framebuffer_cleanup(fb);
1058 kfree(radeon_fb);
1059 }
1060
1061 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
1062 struct drm_file *file_priv,
1063 unsigned int *handle)
1064 {
1065 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
1066
1067 return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
1068 }
1069
1070 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
1071 .destroy = radeon_user_framebuffer_destroy,
1072 .create_handle = radeon_user_framebuffer_create_handle,
1073 };
1074
1075 int
1076 radeon_framebuffer_init(struct drm_device *dev,
1077 struct radeon_framebuffer *rfb,
1078 struct drm_mode_fb_cmd2 *mode_cmd,
1079 struct drm_gem_object *obj)
1080 {
1081 int ret;
1082 rfb->obj = obj;
1083 ret = drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs);
1084 if (ret) {
1085 rfb->obj = NULL;
1086 return ret;
1087 }
1088 drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd);
1089 return 0;
1090 }
1091
1092 static struct drm_framebuffer *
1093 radeon_user_framebuffer_create(struct drm_device *dev,
1094 struct drm_file *file_priv,
1095 struct drm_mode_fb_cmd2 *mode_cmd)
1096 {
1097 struct drm_gem_object *obj;
1098 struct radeon_framebuffer *radeon_fb;
1099 int ret;
1100
1101 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
1102 if (obj == NULL) {
1103 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
1104 "can't create framebuffer\n", mode_cmd->handles[0]);
1105 return ERR_PTR(-ENOENT);
1106 }
1107
1108 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
1109 if (radeon_fb == NULL)
1110 return ERR_PTR(-ENOMEM);
1111
1112 ret = radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj);
1113 if (ret) {
1114 kfree(radeon_fb);
1115 drm_gem_object_unreference_unlocked(obj);
1116 return NULL;
1117 }
1118
1119 return &radeon_fb->base;
1120 }
1121
1122 static void radeon_output_poll_changed(struct drm_device *dev)
1123 {
1124 struct radeon_device *rdev = dev->dev_private;
1125 radeon_fb_output_poll_changed(rdev);
1126 }
1127
1128 static const struct drm_mode_config_funcs radeon_mode_funcs = {
1129 .fb_create = radeon_user_framebuffer_create,
1130 .output_poll_changed = radeon_output_poll_changed
1131 };
1132
1133 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
1134 { { 0, "driver" },
1135 { 1, "bios" },
1136 };
1137
1138 static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
1139 { { TV_STD_NTSC, "ntsc" },
1140 { TV_STD_PAL, "pal" },
1141 { TV_STD_PAL_M, "pal-m" },
1142 { TV_STD_PAL_60, "pal-60" },
1143 { TV_STD_NTSC_J, "ntsc-j" },
1144 { TV_STD_SCART_PAL, "scart-pal" },
1145 { TV_STD_PAL_CN, "pal-cn" },
1146 { TV_STD_SECAM, "secam" },
1147 };
1148
1149 static struct drm_prop_enum_list radeon_underscan_enum_list[] =
1150 { { UNDERSCAN_OFF, "off" },
1151 { UNDERSCAN_ON, "on" },
1152 { UNDERSCAN_AUTO, "auto" },
1153 };
1154
1155 static int radeon_modeset_create_props(struct radeon_device *rdev)
1156 {
1157 int sz;
1158
1159 if (rdev->is_atom_bios) {
1160 rdev->mode_info.coherent_mode_property =
1161 drm_property_create_range(rdev->ddev, 0 , "coherent", 0, 1);
1162 if (!rdev->mode_info.coherent_mode_property)
1163 return -ENOMEM;
1164 }
1165
1166 if (!ASIC_IS_AVIVO(rdev)) {
1167 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
1168 rdev->mode_info.tmds_pll_property =
1169 drm_property_create_enum(rdev->ddev, 0,
1170 "tmds_pll",
1171 radeon_tmds_pll_enum_list, sz);
1172 }
1173
1174 rdev->mode_info.load_detect_property =
1175 drm_property_create_range(rdev->ddev, 0, "load detection", 0, 1);
1176 if (!rdev->mode_info.load_detect_property)
1177 return -ENOMEM;
1178
1179 drm_mode_create_scaling_mode_property(rdev->ddev);
1180
1181 sz = ARRAY_SIZE(radeon_tv_std_enum_list);
1182 rdev->mode_info.tv_std_property =
1183 drm_property_create_enum(rdev->ddev, 0,
1184 "tv standard",
1185 radeon_tv_std_enum_list, sz);
1186
1187 sz = ARRAY_SIZE(radeon_underscan_enum_list);
1188 rdev->mode_info.underscan_property =
1189 drm_property_create_enum(rdev->ddev, 0,
1190 "underscan",
1191 radeon_underscan_enum_list, sz);
1192
1193 rdev->mode_info.underscan_hborder_property =
1194 drm_property_create_range(rdev->ddev, 0,
1195 "underscan hborder", 0, 128);
1196 if (!rdev->mode_info.underscan_hborder_property)
1197 return -ENOMEM;
1198
1199 rdev->mode_info.underscan_vborder_property =
1200 drm_property_create_range(rdev->ddev, 0,
1201 "underscan vborder", 0, 128);
1202 if (!rdev->mode_info.underscan_vborder_property)
1203 return -ENOMEM;
1204
1205 return 0;
1206 }
1207
1208 void radeon_update_display_priority(struct radeon_device *rdev)
1209 {
1210 /* adjustment options for the display watermarks */
1211 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
1212 /* set display priority to high for r3xx, rv515 chips
1213 * this avoids flickering due to underflow to the
1214 * display controllers during heavy acceleration.
1215 * Don't force high on rs4xx igp chips as it seems to
1216 * affect the sound card. See kernel bug 15982.
1217 */
1218 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&
1219 !(rdev->flags & RADEON_IS_IGP))
1220 rdev->disp_priority = 2;
1221 else
1222 rdev->disp_priority = 0;
1223 } else
1224 rdev->disp_priority = radeon_disp_priority;
1225
1226 }
1227
1228 /*
1229 * Allocate hdmi structs and determine register offsets
1230 */
1231 static void radeon_afmt_init(struct radeon_device *rdev)
1232 {
1233 int i;
1234
1235 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++)
1236 rdev->mode_info.afmt[i] = NULL;
1237
1238 if (ASIC_IS_DCE6(rdev)) {
1239 /* todo */
1240 } else if (ASIC_IS_DCE4(rdev)) {
1241 /* DCE4/5 has 6 audio blocks tied to DIG encoders */
1242 /* DCE4.1 has 2 audio blocks tied to DIG encoders */
1243 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1244 if (rdev->mode_info.afmt[0]) {
1245 rdev->mode_info.afmt[0]->offset = EVERGREEN_CRTC0_REGISTER_OFFSET;
1246 rdev->mode_info.afmt[0]->id = 0;
1247 }
1248 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1249 if (rdev->mode_info.afmt[1]) {
1250 rdev->mode_info.afmt[1]->offset = EVERGREEN_CRTC1_REGISTER_OFFSET;
1251 rdev->mode_info.afmt[1]->id = 1;
1252 }
1253 if (!ASIC_IS_DCE41(rdev)) {
1254 rdev->mode_info.afmt[2] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1255 if (rdev->mode_info.afmt[2]) {
1256 rdev->mode_info.afmt[2]->offset = EVERGREEN_CRTC2_REGISTER_OFFSET;
1257 rdev->mode_info.afmt[2]->id = 2;
1258 }
1259 rdev->mode_info.afmt[3] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1260 if (rdev->mode_info.afmt[3]) {
1261 rdev->mode_info.afmt[3]->offset = EVERGREEN_CRTC3_REGISTER_OFFSET;
1262 rdev->mode_info.afmt[3]->id = 3;
1263 }
1264 rdev->mode_info.afmt[4] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1265 if (rdev->mode_info.afmt[4]) {
1266 rdev->mode_info.afmt[4]->offset = EVERGREEN_CRTC4_REGISTER_OFFSET;
1267 rdev->mode_info.afmt[4]->id = 4;
1268 }
1269 rdev->mode_info.afmt[5] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1270 if (rdev->mode_info.afmt[5]) {
1271 rdev->mode_info.afmt[5]->offset = EVERGREEN_CRTC5_REGISTER_OFFSET;
1272 rdev->mode_info.afmt[5]->id = 5;
1273 }
1274 }
1275 } else if (ASIC_IS_DCE3(rdev)) {
1276 /* DCE3.x has 2 audio blocks tied to DIG encoders */
1277 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1278 if (rdev->mode_info.afmt[0]) {
1279 rdev->mode_info.afmt[0]->offset = DCE3_HDMI_OFFSET0;
1280 rdev->mode_info.afmt[0]->id = 0;
1281 }
1282 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1283 if (rdev->mode_info.afmt[1]) {
1284 rdev->mode_info.afmt[1]->offset = DCE3_HDMI_OFFSET1;
1285 rdev->mode_info.afmt[1]->id = 1;
1286 }
1287 } else if (ASIC_IS_DCE2(rdev)) {
1288 /* DCE2 has at least 1 routable audio block */
1289 rdev->mode_info.afmt[0] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1290 if (rdev->mode_info.afmt[0]) {
1291 rdev->mode_info.afmt[0]->offset = DCE2_HDMI_OFFSET0;
1292 rdev->mode_info.afmt[0]->id = 0;
1293 }
1294 /* r6xx has 2 routable audio blocks */
1295 if (rdev->family >= CHIP_R600) {
1296 rdev->mode_info.afmt[1] = kzalloc(sizeof(struct radeon_afmt), GFP_KERNEL);
1297 if (rdev->mode_info.afmt[1]) {
1298 rdev->mode_info.afmt[1]->offset = DCE2_HDMI_OFFSET1;
1299 rdev->mode_info.afmt[1]->id = 1;
1300 }
1301 }
1302 }
1303 }
1304
1305 static void radeon_afmt_fini(struct radeon_device *rdev)
1306 {
1307 int i;
1308
1309 for (i = 0; i < RADEON_MAX_AFMT_BLOCKS; i++) {
1310 kfree(rdev->mode_info.afmt[i]);
1311 rdev->mode_info.afmt[i] = NULL;
1312 }
1313 }
1314
1315 int radeon_modeset_init(struct radeon_device *rdev)
1316 {
1317 int i;
1318 int ret;
1319
1320 drm_mode_config_init(rdev->ddev);
1321 rdev->mode_info.mode_config_initialized = true;
1322
1323 rdev->ddev->mode_config.funcs = &radeon_mode_funcs;
1324
1325 if (ASIC_IS_DCE5(rdev)) {
1326 rdev->ddev->mode_config.max_width = 16384;
1327 rdev->ddev->mode_config.max_height = 16384;
1328 } else if (ASIC_IS_AVIVO(rdev)) {
1329 rdev->ddev->mode_config.max_width = 8192;
1330 rdev->ddev->mode_config.max_height = 8192;
1331 } else {
1332 rdev->ddev->mode_config.max_width = 4096;
1333 rdev->ddev->mode_config.max_height = 4096;
1334 }
1335
1336 rdev->ddev->mode_config.preferred_depth = 24;
1337 rdev->ddev->mode_config.prefer_shadow = 1;
1338
1339 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
1340
1341 ret = radeon_modeset_create_props(rdev);
1342 if (ret) {
1343 return ret;
1344 }
1345
1346 /* init i2c buses */
1347 radeon_i2c_init(rdev);
1348
1349 /* check combios for a valid hardcoded EDID - Sun servers */
1350 if (!rdev->is_atom_bios) {
1351 /* check for hardcoded EDID in BIOS */
1352 radeon_combios_check_hardcoded_edid(rdev);
1353 }
1354
1355 /* allocate crtcs */
1356 for (i = 0; i < rdev->num_crtc; i++) {
1357 radeon_crtc_init(rdev->ddev, i);
1358 }
1359
1360 /* okay we should have all the bios connectors */
1361 ret = radeon_setup_enc_conn(rdev->ddev);
1362 if (!ret) {
1363 return ret;
1364 }
1365
1366 /* init dig PHYs, disp eng pll */
1367 if (rdev->is_atom_bios) {
1368 radeon_atom_encoder_init(rdev);
1369 radeon_atom_disp_eng_pll_init(rdev);
1370 }
1371
1372 /* initialize hpd */
1373 radeon_hpd_init(rdev);
1374
1375 /* setup afmt */
1376 radeon_afmt_init(rdev);
1377
1378 /* Initialize power management */
1379 radeon_pm_init(rdev);
1380
1381 radeon_fbdev_init(rdev);
1382 drm_kms_helper_poll_init(rdev->ddev);
1383
1384 return 0;
1385 }
1386
1387 void radeon_modeset_fini(struct radeon_device *rdev)
1388 {
1389 radeon_fbdev_fini(rdev);
1390 kfree(rdev->mode_info.bios_hardcoded_edid);
1391 radeon_pm_fini(rdev);
1392
1393 if (rdev->mode_info.mode_config_initialized) {
1394 radeon_afmt_fini(rdev);
1395 drm_kms_helper_poll_fini(rdev->ddev);
1396 radeon_hpd_fini(rdev);
1397 drm_mode_config_cleanup(rdev->ddev);
1398 rdev->mode_info.mode_config_initialized = false;
1399 }
1400 /* free i2c buses */
1401 radeon_i2c_fini(rdev);
1402 }
1403
1404 static bool is_hdtv_mode(const struct drm_display_mode *mode)
1405 {
1406 /* try and guess if this is a tv or a monitor */
1407 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */
1408 (mode->vdisplay == 576) || /* 576p */
1409 (mode->vdisplay == 720) || /* 720p */
1410 (mode->vdisplay == 1080)) /* 1080p */
1411 return true;
1412 else
1413 return false;
1414 }
1415
1416 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
1417 const struct drm_display_mode *mode,
1418 struct drm_display_mode *adjusted_mode)
1419 {
1420 struct drm_device *dev = crtc->dev;
1421 struct radeon_device *rdev = dev->dev_private;
1422 struct drm_encoder *encoder;
1423 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1424 struct radeon_encoder *radeon_encoder;
1425 struct drm_connector *connector;
1426 struct radeon_connector *radeon_connector;
1427 bool first = true;
1428 u32 src_v = 1, dst_v = 1;
1429 u32 src_h = 1, dst_h = 1;
1430
1431 radeon_crtc->h_border = 0;
1432 radeon_crtc->v_border = 0;
1433
1434 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1435 if (encoder->crtc != crtc)
1436 continue;
1437 radeon_encoder = to_radeon_encoder(encoder);
1438 connector = radeon_get_connector_for_encoder(encoder);
1439 radeon_connector = to_radeon_connector(connector);
1440
1441 if (first) {
1442 /* set scaling */
1443 if (radeon_encoder->rmx_type == RMX_OFF)
1444 radeon_crtc->rmx_type = RMX_OFF;
1445 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
1446 mode->vdisplay < radeon_encoder->native_mode.vdisplay)
1447 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
1448 else
1449 radeon_crtc->rmx_type = RMX_OFF;
1450 /* copy native mode */
1451 memcpy(&radeon_crtc->native_mode,
1452 &radeon_encoder->native_mode,
1453 sizeof(struct drm_display_mode));
1454 src_v = crtc->mode.vdisplay;
1455 dst_v = radeon_crtc->native_mode.vdisplay;
1456 src_h = crtc->mode.hdisplay;
1457 dst_h = radeon_crtc->native_mode.hdisplay;
1458
1459 /* fix up for overscan on hdmi */
1460 if (ASIC_IS_AVIVO(rdev) &&
1461 (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
1462 ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
1463 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
1464 drm_detect_hdmi_monitor(radeon_connector->edid) &&
1465 is_hdtv_mode(mode)))) {
1466 if (radeon_encoder->underscan_hborder != 0)
1467 radeon_crtc->h_border = radeon_encoder->underscan_hborder;
1468 else
1469 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16;
1470 if (radeon_encoder->underscan_vborder != 0)
1471 radeon_crtc->v_border = radeon_encoder->underscan_vborder;
1472 else
1473 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16;
1474 radeon_crtc->rmx_type = RMX_FULL;
1475 src_v = crtc->mode.vdisplay;
1476 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2);
1477 src_h = crtc->mode.hdisplay;
1478 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2);
1479 }
1480 first = false;
1481 } else {
1482 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
1483 /* WARNING: Right now this can't happen but
1484 * in the future we need to check that scaling
1485 * are consistent across different encoder
1486 * (ie all encoder can work with the same
1487 * scaling).
1488 */
1489 DRM_ERROR("Scaling not consistent across encoder.\n");
1490 return false;
1491 }
1492 }
1493 }
1494 if (radeon_crtc->rmx_type != RMX_OFF) {
1495 fixed20_12 a, b;
1496 a.full = dfixed_const(src_v);
1497 b.full = dfixed_const(dst_v);
1498 radeon_crtc->vsc.full = dfixed_div(a, b);
1499 a.full = dfixed_const(src_h);
1500 b.full = dfixed_const(dst_h);
1501 radeon_crtc->hsc.full = dfixed_div(a, b);
1502 } else {
1503 radeon_crtc->vsc.full = dfixed_const(1);
1504 radeon_crtc->hsc.full = dfixed_const(1);
1505 }
1506 return true;
1507 }
1508
1509 /*
1510 * Retrieve current video scanout position of crtc on a given gpu.
1511 *
1512 * \param dev Device to query.
1513 * \param crtc Crtc to query.
1514 * \param *vpos Location where vertical scanout position should be stored.
1515 * \param *hpos Location where horizontal scanout position should go.
1516 *
1517 * Returns vpos as a positive number while in active scanout area.
1518 * Returns vpos as a negative number inside vblank, counting the number
1519 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
1520 * until start of active scanout / end of vblank."
1521 *
1522 * \return Flags, or'ed together as follows:
1523 *
1524 * DRM_SCANOUTPOS_VALID = Query successful.
1525 * DRM_SCANOUTPOS_INVBL = Inside vblank.
1526 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
1527 * this flag means that returned position may be offset by a constant but
1528 * unknown small number of scanlines wrt. real scanout position.
1529 *
1530 */
1531 int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos)
1532 {
1533 u32 stat_crtc = 0, vbl = 0, position = 0;
1534 int vbl_start, vbl_end, vtotal, ret = 0;
1535 bool in_vbl = true;
1536
1537 struct radeon_device *rdev = dev->dev_private;
1538
1539 if (ASIC_IS_DCE4(rdev)) {
1540 if (crtc == 0) {
1541 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1542 EVERGREEN_CRTC0_REGISTER_OFFSET);
1543 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1544 EVERGREEN_CRTC0_REGISTER_OFFSET);
1545 ret |= DRM_SCANOUTPOS_VALID;
1546 }
1547 if (crtc == 1) {
1548 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1549 EVERGREEN_CRTC1_REGISTER_OFFSET);
1550 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1551 EVERGREEN_CRTC1_REGISTER_OFFSET);
1552 ret |= DRM_SCANOUTPOS_VALID;
1553 }
1554 if (crtc == 2) {
1555 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1556 EVERGREEN_CRTC2_REGISTER_OFFSET);
1557 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1558 EVERGREEN_CRTC2_REGISTER_OFFSET);
1559 ret |= DRM_SCANOUTPOS_VALID;
1560 }
1561 if (crtc == 3) {
1562 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1563 EVERGREEN_CRTC3_REGISTER_OFFSET);
1564 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1565 EVERGREEN_CRTC3_REGISTER_OFFSET);
1566 ret |= DRM_SCANOUTPOS_VALID;
1567 }
1568 if (crtc == 4) {
1569 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1570 EVERGREEN_CRTC4_REGISTER_OFFSET);
1571 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1572 EVERGREEN_CRTC4_REGISTER_OFFSET);
1573 ret |= DRM_SCANOUTPOS_VALID;
1574 }
1575 if (crtc == 5) {
1576 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1577 EVERGREEN_CRTC5_REGISTER_OFFSET);
1578 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1579 EVERGREEN_CRTC5_REGISTER_OFFSET);
1580 ret |= DRM_SCANOUTPOS_VALID;
1581 }
1582 } else if (ASIC_IS_AVIVO(rdev)) {
1583 if (crtc == 0) {
1584 vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END);
1585 position = RREG32(AVIVO_D1CRTC_STATUS_POSITION);
1586 ret |= DRM_SCANOUTPOS_VALID;
1587 }
1588 if (crtc == 1) {
1589 vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END);
1590 position = RREG32(AVIVO_D2CRTC_STATUS_POSITION);
1591 ret |= DRM_SCANOUTPOS_VALID;
1592 }
1593 } else {
1594 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */
1595 if (crtc == 0) {
1596 /* Assume vbl_end == 0, get vbl_start from
1597 * upper 16 bits.
1598 */
1599 vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) &
1600 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1601 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */
1602 position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1603 stat_crtc = RREG32(RADEON_CRTC_STATUS);
1604 if (!(stat_crtc & 1))
1605 in_vbl = false;
1606
1607 ret |= DRM_SCANOUTPOS_VALID;
1608 }
1609 if (crtc == 1) {
1610 vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) &
1611 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1612 position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1613 stat_crtc = RREG32(RADEON_CRTC2_STATUS);
1614 if (!(stat_crtc & 1))
1615 in_vbl = false;
1616
1617 ret |= DRM_SCANOUTPOS_VALID;
1618 }
1619 }
1620
1621 /* Decode into vertical and horizontal scanout position. */
1622 *vpos = position & 0x1fff;
1623 *hpos = (position >> 16) & 0x1fff;
1624
1625 /* Valid vblank area boundaries from gpu retrieved? */
1626 if (vbl > 0) {
1627 /* Yes: Decode. */
1628 ret |= DRM_SCANOUTPOS_ACCURATE;
1629 vbl_start = vbl & 0x1fff;
1630 vbl_end = (vbl >> 16) & 0x1fff;
1631 }
1632 else {
1633 /* No: Fake something reasonable which gives at least ok results. */
1634 vbl_start = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vdisplay;
1635 vbl_end = 0;
1636 }
1637
1638 /* Test scanout position against vblank region. */
1639 if ((*vpos < vbl_start) && (*vpos >= vbl_end))
1640 in_vbl = false;
1641
1642 /* Check if inside vblank area and apply corrective offsets:
1643 * vpos will then be >=0 in video scanout area, but negative
1644 * within vblank area, counting down the number of lines until
1645 * start of scanout.
1646 */
1647
1648 /* Inside "upper part" of vblank area? Apply corrective offset if so: */
1649 if (in_vbl && (*vpos >= vbl_start)) {
1650 vtotal = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vtotal;
1651 *vpos = *vpos - vtotal;
1652 }
1653
1654 /* Correct for shifted end of vbl at vbl_end. */
1655 *vpos = *vpos - vbl_end;
1656
1657 /* In vblank? */
1658 if (in_vbl)
1659 ret |= DRM_SCANOUTPOS_INVBL;
1660
1661 return ret;
1662 }
kernel source for telekom puls (alcatel/mediatek)