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Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / drivers / gpu / drm / radeon / radeon_display.c
blob1a858944e4f3f31243ec55d5178ea7cd7b1f3422
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 int radeon_ddc_dump(struct drm_connector *connector);
37
38 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
39 {
40 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
41 struct drm_device *dev = crtc->dev;
42 struct radeon_device *rdev = dev->dev_private;
43 int i;
44
45 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
46 WREG32(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0);
47
48 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
49 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
50 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
51
52 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
53 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
54 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
55
56 WREG32(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id);
57 WREG32(AVIVO_DC_LUT_RW_MODE, 0);
58 WREG32(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f);
59
60 WREG8(AVIVO_DC_LUT_RW_INDEX, 0);
61 for (i = 0; i < 256; i++) {
62 WREG32(AVIVO_DC_LUT_30_COLOR,
63 (radeon_crtc->lut_r[i] << 20) |
64 (radeon_crtc->lut_g[i] << 10) |
65 (radeon_crtc->lut_b[i] << 0));
66 }
67
68 WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
69 }
70
71 static void dce4_crtc_load_lut(struct drm_crtc *crtc)
72 {
73 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
74 struct drm_device *dev = crtc->dev;
75 struct radeon_device *rdev = dev->dev_private;
76 int i;
77
78 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
79 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
80
81 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
82 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
83 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
84
85 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
86 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
87 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
88
89 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
90 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
91
92 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
93 for (i = 0; i < 256; i++) {
94 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
95 (radeon_crtc->lut_r[i] << 20) |
96 (radeon_crtc->lut_g[i] << 10) |
97 (radeon_crtc->lut_b[i] << 0));
98 }
99 }
100
101 static void dce5_crtc_load_lut(struct drm_crtc *crtc)
102 {
103 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
104 struct drm_device *dev = crtc->dev;
105 struct radeon_device *rdev = dev->dev_private;
106 int i;
107
108 DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id);
109
110 WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
111 (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) |
112 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS)));
113 WREG32(NI_PRESCALE_GRPH_CONTROL + radeon_crtc->crtc_offset,
114 NI_GRPH_PRESCALE_BYPASS);
115 WREG32(NI_PRESCALE_OVL_CONTROL + radeon_crtc->crtc_offset,
116 NI_OVL_PRESCALE_BYPASS);
117 WREG32(NI_INPUT_GAMMA_CONTROL + radeon_crtc->crtc_offset,
118 (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT) |
119 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT)));
120
121 WREG32(EVERGREEN_DC_LUT_CONTROL + radeon_crtc->crtc_offset, 0);
122
123 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
124 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
125 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
126
127 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
128 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
129 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
130
131 WREG32(EVERGREEN_DC_LUT_RW_MODE + radeon_crtc->crtc_offset, 0);
132 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK + radeon_crtc->crtc_offset, 0x00000007);
133
134 WREG32(EVERGREEN_DC_LUT_RW_INDEX + radeon_crtc->crtc_offset, 0);
135 for (i = 0; i < 256; i++) {
136 WREG32(EVERGREEN_DC_LUT_30_COLOR + radeon_crtc->crtc_offset,
137 (radeon_crtc->lut_r[i] << 20) |
138 (radeon_crtc->lut_g[i] << 10) |
139 (radeon_crtc->lut_b[i] << 0));
140 }
141
142 WREG32(NI_DEGAMMA_CONTROL + radeon_crtc->crtc_offset,
143 (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
144 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
145 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS) |
146 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS)));
147 WREG32(NI_GAMUT_REMAP_CONTROL + radeon_crtc->crtc_offset,
148 (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS) |
149 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS)));
150 WREG32(NI_REGAMMA_CONTROL + radeon_crtc->crtc_offset,
151 (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS) |
152 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS)));
153 WREG32(NI_OUTPUT_CSC_CONTROL + radeon_crtc->crtc_offset,
154 (NI_OUTPUT_CSC_GRPH_MODE(NI_OUTPUT_CSC_BYPASS) |
155 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS)));
156 /* XXX match this to the depth of the crtc fmt block, move to modeset? */
157 WREG32(0x6940 + radeon_crtc->crtc_offset, 0);
158
159 }
160
161 static void legacy_crtc_load_lut(struct drm_crtc *crtc)
162 {
163 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
164 struct drm_device *dev = crtc->dev;
165 struct radeon_device *rdev = dev->dev_private;
166 int i;
167 uint32_t dac2_cntl;
168
169 dac2_cntl = RREG32(RADEON_DAC_CNTL2);
170 if (radeon_crtc->crtc_id == 0)
171 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
172 else
173 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL;
174 WREG32(RADEON_DAC_CNTL2, dac2_cntl);
175
176 WREG8(RADEON_PALETTE_INDEX, 0);
177 for (i = 0; i < 256; i++) {
178 WREG32(RADEON_PALETTE_30_DATA,
179 (radeon_crtc->lut_r[i] << 20) |
180 (radeon_crtc->lut_g[i] << 10) |
181 (radeon_crtc->lut_b[i] << 0));
182 }
183 }
184
185 void radeon_crtc_load_lut(struct drm_crtc *crtc)
186 {
187 struct drm_device *dev = crtc->dev;
188 struct radeon_device *rdev = dev->dev_private;
189
190 if (!crtc->enabled)
191 return;
192
193 if (ASIC_IS_DCE5(rdev))
194 dce5_crtc_load_lut(crtc);
195 else if (ASIC_IS_DCE4(rdev))
196 dce4_crtc_load_lut(crtc);
197 else if (ASIC_IS_AVIVO(rdev))
198 avivo_crtc_load_lut(crtc);
199 else
200 legacy_crtc_load_lut(crtc);
201 }
202
203 /** Sets the color ramps on behalf of fbcon */
204 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
205 u16 blue, int regno)
206 {
207 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
208
209 radeon_crtc->lut_r[regno] = red >> 6;
210 radeon_crtc->lut_g[regno] = green >> 6;
211 radeon_crtc->lut_b[regno] = blue >> 6;
212 }
213
214 /** Gets the color ramps on behalf of fbcon */
215 void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
216 u16 *blue, int regno)
217 {
218 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
219
220 *red = radeon_crtc->lut_r[regno] << 6;
221 *green = radeon_crtc->lut_g[regno] << 6;
222 *blue = radeon_crtc->lut_b[regno] << 6;
223 }
224
225 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
226 u16 *blue, uint32_t start, uint32_t size)
227 {
228 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
229 int end = (start + size > 256) ? 256 : start + size, i;
230
231 /* userspace palettes are always correct as is */
232 for (i = start; i < end; i++) {
233 radeon_crtc->lut_r[i] = red[i] >> 6;
234 radeon_crtc->lut_g[i] = green[i] >> 6;
235 radeon_crtc->lut_b[i] = blue[i] >> 6;
236 }
237 radeon_crtc_load_lut(crtc);
238 }
239
240 static void radeon_crtc_destroy(struct drm_crtc *crtc)
241 {
242 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
243
244 drm_crtc_cleanup(crtc);
245 kfree(radeon_crtc);
246 }
247
248 /*
249 * Handle unpin events outside the interrupt handler proper.
250 */
251 static void radeon_unpin_work_func(struct work_struct *__work)
252 {
253 struct radeon_unpin_work *work =
254 container_of(__work, struct radeon_unpin_work, work);
255 int r;
256
257 /* unpin of the old buffer */
258 r = radeon_bo_reserve(work->old_rbo, false);
259 if (likely(r == 0)) {
260 r = radeon_bo_unpin(work->old_rbo);
261 if (unlikely(r != 0)) {
262 DRM_ERROR("failed to unpin buffer after flip\n");
263 }
264 radeon_bo_unreserve(work->old_rbo);
265 } else
266 DRM_ERROR("failed to reserve buffer after flip\n");
267
268 drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base);
269 kfree(work);
270 }
271
272 void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
273 {
274 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
275 struct radeon_unpin_work *work;
276 struct drm_pending_vblank_event *e;
277 struct timeval now;
278 unsigned long flags;
279 u32 update_pending;
280 int vpos, hpos;
281
282 spin_lock_irqsave(&rdev->ddev->event_lock, flags);
283 work = radeon_crtc->unpin_work;
284 if (work == NULL ||
285 (work->fence && !radeon_fence_signaled(work->fence))) {
286 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
287 return;
288 }
289 /* New pageflip, or just completion of a previous one? */
290 if (!radeon_crtc->deferred_flip_completion) {
291 /* do the flip (mmio) */
292 update_pending = radeon_page_flip(rdev, crtc_id, work->new_crtc_base);
293 } else {
294 /* This is just a completion of a flip queued in crtc
295 * at last invocation. Make sure we go directly to
296 * completion routine.
297 */
298 update_pending = 0;
299 radeon_crtc->deferred_flip_completion = 0;
300 }
301
302 /* Has the pageflip already completed in crtc, or is it certain
303 * to complete in this vblank?
304 */
305 if (update_pending &&
306 (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id,
307 &vpos, &hpos)) &&
308 (vpos >=0) &&
309 (vpos < (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100)) {
310 /* crtc didn't flip in this target vblank interval,
311 * but flip is pending in crtc. It will complete it
312 * in next vblank interval, so complete the flip at
313 * next vblank irq.
314 */
315 radeon_crtc->deferred_flip_completion = 1;
316 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
317 return;
318 }
319
320 /* Pageflip (will be) certainly completed in this vblank. Clean up. */
321 radeon_crtc->unpin_work = NULL;
322
323 /* wakeup userspace */
324 if (work->event) {
325 e = work->event;
326 e->event.sequence = drm_vblank_count_and_time(rdev->ddev, crtc_id, &now);
327 e->event.tv_sec = now.tv_sec;
328 e->event.tv_usec = now.tv_usec;
329 list_add_tail(&e->base.link, &e->base.file_priv->event_list);
330 wake_up_interruptible(&e->base.file_priv->event_wait);
331 }
332 spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
333
334 drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id);
335 radeon_fence_unref(&work->fence);
336 radeon_post_page_flip(work->rdev, work->crtc_id);
337 schedule_work(&work->work);
338 }
339
340 static int radeon_crtc_page_flip(struct drm_crtc *crtc,
341 struct drm_framebuffer *fb,
342 struct drm_pending_vblank_event *event)
343 {
344 struct drm_device *dev = crtc->dev;
345 struct radeon_device *rdev = dev->dev_private;
346 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
347 struct radeon_framebuffer *old_radeon_fb;
348 struct radeon_framebuffer *new_radeon_fb;
349 struct drm_gem_object *obj;
350 struct radeon_bo *rbo;
351 struct radeon_unpin_work *work;
352 unsigned long flags;
353 u32 tiling_flags, pitch_pixels;
354 u64 base;
355 int r;
356
357 work = kzalloc(sizeof *work, GFP_KERNEL);
358 if (work == NULL)
359 return -ENOMEM;
360
361 work->event = event;
362 work->rdev = rdev;
363 work->crtc_id = radeon_crtc->crtc_id;
364 old_radeon_fb = to_radeon_framebuffer(crtc->fb);
365 new_radeon_fb = to_radeon_framebuffer(fb);
366 /* schedule unpin of the old buffer */
367 obj = old_radeon_fb->obj;
368 /* take a reference to the old object */
369 drm_gem_object_reference(obj);
370 rbo = gem_to_radeon_bo(obj);
371 work->old_rbo = rbo;
372 obj = new_radeon_fb->obj;
373 rbo = gem_to_radeon_bo(obj);
374 if (rbo->tbo.sync_obj)
375 work->fence = radeon_fence_ref(rbo->tbo.sync_obj);
376 INIT_WORK(&work->work, radeon_unpin_work_func);
377
378 /* We borrow the event spin lock for protecting unpin_work */
379 spin_lock_irqsave(&dev->event_lock, flags);
380 if (radeon_crtc->unpin_work) {
381 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
382 r = -EBUSY;
383 goto unlock_free;
384 }
385 radeon_crtc->unpin_work = work;
386 radeon_crtc->deferred_flip_completion = 0;
387 spin_unlock_irqrestore(&dev->event_lock, flags);
388
389 /* pin the new buffer */
390 DRM_DEBUG_DRIVER("flip-ioctl() cur_fbo = %p, cur_bbo = %p\n",
391 work->old_rbo, rbo);
392
393 r = radeon_bo_reserve(rbo, false);
394 if (unlikely(r != 0)) {
395 DRM_ERROR("failed to reserve new rbo buffer before flip\n");
396 goto pflip_cleanup;
397 }
398 r = radeon_bo_pin(rbo, RADEON_GEM_DOMAIN_VRAM, &base);
399 if (unlikely(r != 0)) {
400 radeon_bo_unreserve(rbo);
401 r = -EINVAL;
402 DRM_ERROR("failed to pin new rbo buffer before flip\n");
403 goto pflip_cleanup;
404 }
405 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
406 radeon_bo_unreserve(rbo);
407
408 if (!ASIC_IS_AVIVO(rdev)) {
409 /* crtc offset is from display base addr not FB location */
410 base -= radeon_crtc->legacy_display_base_addr;
411 pitch_pixels = fb->pitch / (fb->bits_per_pixel / 8);
412
413 if (tiling_flags & RADEON_TILING_MACRO) {
414 if (ASIC_IS_R300(rdev)) {
415 base &= ~0x7ff;
416 } else {
417 int byteshift = fb->bits_per_pixel >> 4;
418 int tile_addr = (((crtc->y >> 3) * pitch_pixels + crtc->x) >> (8 - byteshift)) << 11;
419 base += tile_addr + ((crtc->x << byteshift) % 256) + ((crtc->y % 8) << 8);
420 }
421 } else {
422 int offset = crtc->y * pitch_pixels + crtc->x;
423 switch (fb->bits_per_pixel) {
424 case 8:
425 default:
426 offset *= 1;
427 break;
428 case 15:
429 case 16:
430 offset *= 2;
431 break;
432 case 24:
433 offset *= 3;
434 break;
435 case 32:
436 offset *= 4;
437 break;
438 }
439 base += offset;
440 }
441 base &= ~7;
442 }
443
444 spin_lock_irqsave(&dev->event_lock, flags);
445 work->new_crtc_base = base;
446 spin_unlock_irqrestore(&dev->event_lock, flags);
447
448 /* update crtc fb */
449 crtc->fb = fb;
450
451 r = drm_vblank_get(dev, radeon_crtc->crtc_id);
452 if (r) {
453 DRM_ERROR("failed to get vblank before flip\n");
454 goto pflip_cleanup1;
455 }
456
457 /* set the proper interrupt */
458 radeon_pre_page_flip(rdev, radeon_crtc->crtc_id);
459
460 return 0;
461
462 pflip_cleanup1:
463 if (unlikely(radeon_bo_reserve(rbo, false) != 0)) {
464 DRM_ERROR("failed to reserve new rbo in error path\n");
465 goto pflip_cleanup;
466 }
467 if (unlikely(radeon_bo_unpin(rbo) != 0)) {
468 DRM_ERROR("failed to unpin new rbo in error path\n");
469 }
470 radeon_bo_unreserve(rbo);
471
472 pflip_cleanup:
473 spin_lock_irqsave(&dev->event_lock, flags);
474 radeon_crtc->unpin_work = NULL;
475 unlock_free:
476 drm_gem_object_unreference_unlocked(old_radeon_fb->obj);
477 spin_unlock_irqrestore(&dev->event_lock, flags);
478 radeon_fence_unref(&work->fence);
479 kfree(work);
480
481 return r;
482 }
483
484 static const struct drm_crtc_funcs radeon_crtc_funcs = {
485 .cursor_set = radeon_crtc_cursor_set,
486 .cursor_move = radeon_crtc_cursor_move,
487 .gamma_set = radeon_crtc_gamma_set,
488 .set_config = drm_crtc_helper_set_config,
489 .destroy = radeon_crtc_destroy,
490 .page_flip = radeon_crtc_page_flip,
491 };
492
493 static void radeon_crtc_init(struct drm_device *dev, int index)
494 {
495 struct radeon_device *rdev = dev->dev_private;
496 struct radeon_crtc *radeon_crtc;
497 int i;
498
499 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
500 if (radeon_crtc == NULL)
501 return;
502
503 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
504
505 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
506 radeon_crtc->crtc_id = index;
507 rdev->mode_info.crtcs[index] = radeon_crtc;
508
509 #if 0
510 radeon_crtc->mode_set.crtc = &radeon_crtc->base;
511 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
512 radeon_crtc->mode_set.num_connectors = 0;
513 #endif
514
515 for (i = 0; i < 256; i++) {
516 radeon_crtc->lut_r[i] = i << 2;
517 radeon_crtc->lut_g[i] = i << 2;
518 radeon_crtc->lut_b[i] = i << 2;
519 }
520
521 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom))
522 radeon_atombios_init_crtc(dev, radeon_crtc);
523 else
524 radeon_legacy_init_crtc(dev, radeon_crtc);
525 }
526
527 static const char *encoder_names[36] = {
528 "NONE",
529 "INTERNAL_LVDS",
530 "INTERNAL_TMDS1",
531 "INTERNAL_TMDS2",
532 "INTERNAL_DAC1",
533 "INTERNAL_DAC2",
534 "INTERNAL_SDVOA",
535 "INTERNAL_SDVOB",
536 "SI170B",
537 "CH7303",
538 "CH7301",
539 "INTERNAL_DVO1",
540 "EXTERNAL_SDVOA",
541 "EXTERNAL_SDVOB",
542 "TITFP513",
543 "INTERNAL_LVTM1",
544 "VT1623",
545 "HDMI_SI1930",
546 "HDMI_INTERNAL",
547 "INTERNAL_KLDSCP_TMDS1",
548 "INTERNAL_KLDSCP_DVO1",
549 "INTERNAL_KLDSCP_DAC1",
550 "INTERNAL_KLDSCP_DAC2",
551 "SI178",
552 "MVPU_FPGA",
553 "INTERNAL_DDI",
554 "VT1625",
555 "HDMI_SI1932",
556 "DP_AN9801",
557 "DP_DP501",
558 "INTERNAL_UNIPHY",
559 "INTERNAL_KLDSCP_LVTMA",
560 "INTERNAL_UNIPHY1",
561 "INTERNAL_UNIPHY2",
562 "NUTMEG",
563 "TRAVIS",
564 };
565
566 static const char *connector_names[15] = {
567 "Unknown",
568 "VGA",
569 "DVI-I",
570 "DVI-D",
571 "DVI-A",
572 "Composite",
573 "S-video",
574 "LVDS",
575 "Component",
576 "DIN",
577 "DisplayPort",
578 "HDMI-A",
579 "HDMI-B",
580 "TV",
581 "eDP",
582 };
583
584 static const char *hpd_names[6] = {
585 "HPD1",
586 "HPD2",
587 "HPD3",
588 "HPD4",
589 "HPD5",
590 "HPD6",
591 };
592
593 static void radeon_print_display_setup(struct drm_device *dev)
594 {
595 struct drm_connector *connector;
596 struct radeon_connector *radeon_connector;
597 struct drm_encoder *encoder;
598 struct radeon_encoder *radeon_encoder;
599 uint32_t devices;
600 int i = 0;
601
602 DRM_INFO("Radeon Display Connectors\n");
603 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
604 radeon_connector = to_radeon_connector(connector);
605 DRM_INFO("Connector %d:\n", i);
606 DRM_INFO(" %s\n", connector_names[connector->connector_type]);
607 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
608 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]);
609 if (radeon_connector->ddc_bus) {
610 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
611 radeon_connector->ddc_bus->rec.mask_clk_reg,
612 radeon_connector->ddc_bus->rec.mask_data_reg,
613 radeon_connector->ddc_bus->rec.a_clk_reg,
614 radeon_connector->ddc_bus->rec.a_data_reg,
615 radeon_connector->ddc_bus->rec.en_clk_reg,
616 radeon_connector->ddc_bus->rec.en_data_reg,
617 radeon_connector->ddc_bus->rec.y_clk_reg,
618 radeon_connector->ddc_bus->rec.y_data_reg);
619 if (radeon_connector->router.ddc_valid)
620 DRM_INFO(" DDC Router 0x%x/0x%x\n",
621 radeon_connector->router.ddc_mux_control_pin,
622 radeon_connector->router.ddc_mux_state);
623 if (radeon_connector->router.cd_valid)
624 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n",
625 radeon_connector->router.cd_mux_control_pin,
626 radeon_connector->router.cd_mux_state);
627 } else {
628 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
629 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
630 connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
631 connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
632 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
633 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
634 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
635 }
636 DRM_INFO(" Encoders:\n");
637 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
638 radeon_encoder = to_radeon_encoder(encoder);
639 devices = radeon_encoder->devices & radeon_connector->devices;
640 if (devices) {
641 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
642 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
643 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
644 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
645 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
646 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
647 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
648 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
649 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
650 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
651 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
652 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
653 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
654 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
655 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
656 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
657 if (devices & ATOM_DEVICE_DFP6_SUPPORT)
658 DRM_INFO(" DFP6: %s\n", encoder_names[radeon_encoder->encoder_id]);
659 if (devices & ATOM_DEVICE_TV1_SUPPORT)
660 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
661 if (devices & ATOM_DEVICE_CV_SUPPORT)
662 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
663 }
664 }
665 i++;
666 }
667 }
668
669 static bool radeon_setup_enc_conn(struct drm_device *dev)
670 {
671 struct radeon_device *rdev = dev->dev_private;
672 struct drm_connector *drm_connector;
673 bool ret = false;
674
675 if (rdev->bios) {
676 if (rdev->is_atom_bios) {
677 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
678 if (ret == false)
679 ret = radeon_get_atom_connector_info_from_object_table(dev);
680 } else {
681 ret = radeon_get_legacy_connector_info_from_bios(dev);
682 if (ret == false)
683 ret = radeon_get_legacy_connector_info_from_table(dev);
684 }
685 } else {
686 if (!ASIC_IS_AVIVO(rdev))
687 ret = radeon_get_legacy_connector_info_from_table(dev);
688 }
689 if (ret) {
690 radeon_setup_encoder_clones(dev);
691 radeon_print_display_setup(dev);
692 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head)
693 radeon_ddc_dump(drm_connector);
694 }
695
696 return ret;
697 }
698
699 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
700 {
701 struct drm_device *dev = radeon_connector->base.dev;
702 struct radeon_device *rdev = dev->dev_private;
703 int ret = 0;
704
705 /* on hw with routers, select right port */
706 if (radeon_connector->router.ddc_valid)
707 radeon_router_select_ddc_port(radeon_connector);
708
709 if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
710 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
711 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
712 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
713 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
714 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
715 }
716 if (!radeon_connector->ddc_bus)
717 return -1;
718 if (!radeon_connector->edid) {
719 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
720 }
721
722 if (!radeon_connector->edid) {
723 if (rdev->is_atom_bios) {
724 /* some laptops provide a hardcoded edid in rom for LCDs */
725 if (((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_LVDS) ||
726 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)))
727 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
728 } else
729 /* some servers provide a hardcoded edid in rom for KVMs */
730 radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
731 }
732 if (radeon_connector->edid) {
733 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
734 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
735 return ret;
736 }
737 drm_mode_connector_update_edid_property(&radeon_connector->base, NULL);
738 return 0;
739 }
740
741 static int radeon_ddc_dump(struct drm_connector *connector)
742 {
743 struct edid *edid;
744 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
745 int ret = 0;
746
747 /* on hw with routers, select right port */
748 if (radeon_connector->router.ddc_valid)
749 radeon_router_select_ddc_port(radeon_connector);
750
751 if (!radeon_connector->ddc_bus)
752 return -1;
753 edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
754 /* Log EDID retrieval status here. In particular with regard to
755 * connectors with requires_extended_probe flag set, that will prevent
756 * function radeon_dvi_detect() to fetch EDID on this connector,
757 * as long as there is no valid EDID header found */
758 if (edid) {
759 DRM_INFO("Radeon display connector %s: Found valid EDID",
760 drm_get_connector_name(connector));
761 kfree(edid);
762 } else {
763 DRM_INFO("Radeon display connector %s: No monitor connected or invalid EDID",
764 drm_get_connector_name(connector));
765 }
766 return ret;
767 }
768
769 /* avivo */
770 static void avivo_get_fb_div(struct radeon_pll *pll,
771 u32 target_clock,
772 u32 post_div,
773 u32 ref_div,
774 u32 *fb_div,
775 u32 *frac_fb_div)
776 {
777 u32 tmp = post_div * ref_div;
778
779 tmp *= target_clock;
780 *fb_div = tmp / pll->reference_freq;
781 *frac_fb_div = tmp % pll->reference_freq;
782
783 if (*fb_div > pll->max_feedback_div)
784 *fb_div = pll->max_feedback_div;
785 else if (*fb_div < pll->min_feedback_div)
786 *fb_div = pll->min_feedback_div;
787 }
788
789 static u32 avivo_get_post_div(struct radeon_pll *pll,
790 u32 target_clock)
791 {
792 u32 vco, post_div, tmp;
793
794 if (pll->flags & RADEON_PLL_USE_POST_DIV)
795 return pll->post_div;
796
797 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) {
798 if (pll->flags & RADEON_PLL_IS_LCD)
799 vco = pll->lcd_pll_out_min;
800 else
801 vco = pll->pll_out_min;
802 } else {
803 if (pll->flags & RADEON_PLL_IS_LCD)
804 vco = pll->lcd_pll_out_max;
805 else
806 vco = pll->pll_out_max;
807 }
808
809 post_div = vco / target_clock;
810 tmp = vco % target_clock;
811
812 if (pll->flags & RADEON_PLL_PREFER_MINM_OVER_MAXP) {
813 if (tmp)
814 post_div++;
815 } else {
816 if (!tmp)
817 post_div--;
818 }
819
820 if (post_div > pll->max_post_div)
821 post_div = pll->max_post_div;
822 else if (post_div < pll->min_post_div)
823 post_div = pll->min_post_div;
824
825 return post_div;
826 }
827
828 #define MAX_TOLERANCE 10
829
830 void radeon_compute_pll_avivo(struct radeon_pll *pll,
831 u32 freq,
832 u32 *dot_clock_p,
833 u32 *fb_div_p,
834 u32 *frac_fb_div_p,
835 u32 *ref_div_p,
836 u32 *post_div_p)
837 {
838 u32 target_clock = freq / 10;
839 u32 post_div = avivo_get_post_div(pll, target_clock);
840 u32 ref_div = pll->min_ref_div;
841 u32 fb_div = 0, frac_fb_div = 0, tmp;
842
843 if (pll->flags & RADEON_PLL_USE_REF_DIV)
844 ref_div = pll->reference_div;
845
846 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
847 avivo_get_fb_div(pll, target_clock, post_div, ref_div, &fb_div, &frac_fb_div);
848 frac_fb_div = (100 * frac_fb_div) / pll->reference_freq;
849 if (frac_fb_div >= 5) {
850 frac_fb_div -= 5;
851 frac_fb_div = frac_fb_div / 10;
852 frac_fb_div++;
853 }
854 if (frac_fb_div >= 10) {
855 fb_div++;
856 frac_fb_div = 0;
857 }
858 } else {
859 while (ref_div <= pll->max_ref_div) {
860 avivo_get_fb_div(pll, target_clock, post_div, ref_div,
861 &fb_div, &frac_fb_div);
862 if (frac_fb_div >= (pll->reference_freq / 2))
863 fb_div++;
864 frac_fb_div = 0;
865 tmp = (pll->reference_freq * fb_div) / (post_div * ref_div);
866 tmp = (tmp * 10000) / target_clock;
867
868 if (tmp > (10000 + MAX_TOLERANCE))
869 ref_div++;
870 else if (tmp >= (10000 - MAX_TOLERANCE))
871 break;
872 else
873 ref_div++;
874 }
875 }
876
877 *dot_clock_p = ((pll->reference_freq * fb_div * 10) + (pll->reference_freq * frac_fb_div)) /
878 (ref_div * post_div * 10);
879 *fb_div_p = fb_div;
880 *frac_fb_div_p = frac_fb_div;
881 *ref_div_p = ref_div;
882 *post_div_p = post_div;
883 DRM_DEBUG_KMS("%d, pll dividers - fb: %d.%d ref: %d, post %d\n",
884 *dot_clock_p, fb_div, frac_fb_div, ref_div, post_div);
885 }
886
887 /* pre-avivo */
888 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
889 {
890 uint64_t mod;
891
892 n += d / 2;
893
894 mod = do_div(n, d);
895 return n;
896 }
897
898 void radeon_compute_pll_legacy(struct radeon_pll *pll,
899 uint64_t freq,
900 uint32_t *dot_clock_p,
901 uint32_t *fb_div_p,
902 uint32_t *frac_fb_div_p,
903 uint32_t *ref_div_p,
904 uint32_t *post_div_p)
905 {
906 uint32_t min_ref_div = pll->min_ref_div;
907 uint32_t max_ref_div = pll->max_ref_div;
908 uint32_t min_post_div = pll->min_post_div;
909 uint32_t max_post_div = pll->max_post_div;
910 uint32_t min_fractional_feed_div = 0;
911 uint32_t max_fractional_feed_div = 0;
912 uint32_t best_vco = pll->best_vco;
913 uint32_t best_post_div = 1;
914 uint32_t best_ref_div = 1;
915 uint32_t best_feedback_div = 1;
916 uint32_t best_frac_feedback_div = 0;
917 uint32_t best_freq = -1;
918 uint32_t best_error = 0xffffffff;
919 uint32_t best_vco_diff = 1;
920 uint32_t post_div;
921 u32 pll_out_min, pll_out_max;
922
923 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
924 freq = freq * 1000;
925
926 if (pll->flags & RADEON_PLL_IS_LCD) {
927 pll_out_min = pll->lcd_pll_out_min;
928 pll_out_max = pll->lcd_pll_out_max;
929 } else {
930 pll_out_min = pll->pll_out_min;
931 pll_out_max = pll->pll_out_max;
932 }
933
934 if (pll_out_min > 64800)
935 pll_out_min = 64800;
936
937 if (pll->flags & RADEON_PLL_USE_REF_DIV)
938 min_ref_div = max_ref_div = pll->reference_div;
939 else {
940 while (min_ref_div < max_ref_div-1) {
941 uint32_t mid = (min_ref_div + max_ref_div) / 2;
942 uint32_t pll_in = pll->reference_freq / mid;
943 if (pll_in < pll->pll_in_min)
944 max_ref_div = mid;
945 else if (pll_in > pll->pll_in_max)
946 min_ref_div = mid;
947 else
948 break;
949 }
950 }
951
952 if (pll->flags & RADEON_PLL_USE_POST_DIV)
953 min_post_div = max_post_div = pll->post_div;
954
955 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
956 min_fractional_feed_div = pll->min_frac_feedback_div;
957 max_fractional_feed_div = pll->max_frac_feedback_div;
958 }
959
960 for (post_div = max_post_div; post_div >= min_post_div; --post_div) {
961 uint32_t ref_div;
962
963 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
964 continue;
965
966 /* legacy radeons only have a few post_divs */
967 if (pll->flags & RADEON_PLL_LEGACY) {
968 if ((post_div == 5) ||
969 (post_div == 7) ||
970 (post_div == 9) ||
971 (post_div == 10) ||
972 (post_div == 11) ||
973 (post_div == 13) ||
974 (post_div == 14) ||
975 (post_div == 15))
976 continue;
977 }
978
979 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
980 uint32_t feedback_div, current_freq = 0, error, vco_diff;
981 uint32_t pll_in = pll->reference_freq / ref_div;
982 uint32_t min_feed_div = pll->min_feedback_div;
983 uint32_t max_feed_div = pll->max_feedback_div + 1;
984
985 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
986 continue;
987
988 while (min_feed_div < max_feed_div) {
989 uint32_t vco;
990 uint32_t min_frac_feed_div = min_fractional_feed_div;
991 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
992 uint32_t frac_feedback_div;
993 uint64_t tmp;
994
995 feedback_div = (min_feed_div + max_feed_div) / 2;
996
997 tmp = (uint64_t)pll->reference_freq * feedback_div;
998 vco = radeon_div(tmp, ref_div);
999
1000 if (vco < pll_out_min) {
1001 min_feed_div = feedback_div + 1;
1002 continue;
1003 } else if (vco > pll_out_max) {
1004 max_feed_div = feedback_div;
1005 continue;
1006 }
1007
1008 while (min_frac_feed_div < max_frac_feed_div) {
1009 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
1010 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
1011 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
1012 current_freq = radeon_div(tmp, ref_div * post_div);
1013
1014 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
1015 if (freq < current_freq)
1016 error = 0xffffffff;
1017 else
1018 error = freq - current_freq;
1019 } else
1020 error = abs(current_freq - freq);
1021 vco_diff = abs(vco - best_vco);
1022
1023 if ((best_vco == 0 && error < best_error) ||
1024 (best_vco != 0 &&
1025 ((best_error > 100 && error < best_error - 100) ||
1026 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
1027 best_post_div = post_div;
1028 best_ref_div = ref_div;
1029 best_feedback_div = feedback_div;
1030 best_frac_feedback_div = frac_feedback_div;
1031 best_freq = current_freq;
1032 best_error = error;
1033 best_vco_diff = vco_diff;
1034 } else if (current_freq == freq) {
1035 if (best_freq == -1) {
1036 best_post_div = post_div;
1037 best_ref_div = ref_div;
1038 best_feedback_div = feedback_div;
1039 best_frac_feedback_div = frac_feedback_div;
1040 best_freq = current_freq;
1041 best_error = error;
1042 best_vco_diff = vco_diff;
1043 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
1044 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
1045 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
1046 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
1047 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
1048 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
1049 best_post_div = post_div;
1050 best_ref_div = ref_div;
1051 best_feedback_div = feedback_div;
1052 best_frac_feedback_div = frac_feedback_div;
1053 best_freq = current_freq;
1054 best_error = error;
1055 best_vco_diff = vco_diff;
1056 }
1057 }
1058 if (current_freq < freq)
1059 min_frac_feed_div = frac_feedback_div + 1;
1060 else
1061 max_frac_feed_div = frac_feedback_div;
1062 }
1063 if (current_freq < freq)
1064 min_feed_div = feedback_div + 1;
1065 else
1066 max_feed_div = feedback_div;
1067 }
1068 }
1069 }
1070
1071 *dot_clock_p = best_freq / 10000;
1072 *fb_div_p = best_feedback_div;
1073 *frac_fb_div_p = best_frac_feedback_div;
1074 *ref_div_p = best_ref_div;
1075 *post_div_p = best_post_div;
1076 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1077 (long long)freq,
1078 best_freq / 1000, best_feedback_div, best_frac_feedback_div,
1079 best_ref_div, best_post_div);
1080
1081 }
1082
1083 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
1084 {
1085 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
1086
1087 if (radeon_fb->obj) {
1088 drm_gem_object_unreference_unlocked(radeon_fb->obj);
1089 }
1090 drm_framebuffer_cleanup(fb);
1091 kfree(radeon_fb);
1092 }
1093
1094 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
1095 struct drm_file *file_priv,
1096 unsigned int *handle)
1097 {
1098 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
1099
1100 return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
1101 }
1102
1103 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
1104 .destroy = radeon_user_framebuffer_destroy,
1105 .create_handle = radeon_user_framebuffer_create_handle,
1106 };
1107
1108 void
1109 radeon_framebuffer_init(struct drm_device *dev,
1110 struct radeon_framebuffer *rfb,
1111 struct drm_mode_fb_cmd *mode_cmd,
1112 struct drm_gem_object *obj)
1113 {
1114 rfb->obj = obj;
1115 drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs);
1116 drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd);
1117 }
1118
1119 static struct drm_framebuffer *
1120 radeon_user_framebuffer_create(struct drm_device *dev,
1121 struct drm_file *file_priv,
1122 struct drm_mode_fb_cmd *mode_cmd)
1123 {
1124 struct drm_gem_object *obj;
1125 struct radeon_framebuffer *radeon_fb;
1126
1127 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
1128 if (obj == NULL) {
1129 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
1130 "can't create framebuffer\n", mode_cmd->handle);
1131 return ERR_PTR(-ENOENT);
1132 }
1133
1134 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
1135 if (radeon_fb == NULL)
1136 return ERR_PTR(-ENOMEM);
1137
1138 radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj);
1139
1140 return &radeon_fb->base;
1141 }
1142
1143 static void radeon_output_poll_changed(struct drm_device *dev)
1144 {
1145 struct radeon_device *rdev = dev->dev_private;
1146 radeon_fb_output_poll_changed(rdev);
1147 }
1148
1149 static const struct drm_mode_config_funcs radeon_mode_funcs = {
1150 .fb_create = radeon_user_framebuffer_create,
1151 .output_poll_changed = radeon_output_poll_changed
1152 };
1153
1154 struct drm_prop_enum_list {
1155 int type;
1156 char *name;
1157 };
1158
1159 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
1160 { { 0, "driver" },
1161 { 1, "bios" },
1162 };
1163
1164 static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
1165 { { TV_STD_NTSC, "ntsc" },
1166 { TV_STD_PAL, "pal" },
1167 { TV_STD_PAL_M, "pal-m" },
1168 { TV_STD_PAL_60, "pal-60" },
1169 { TV_STD_NTSC_J, "ntsc-j" },
1170 { TV_STD_SCART_PAL, "scart-pal" },
1171 { TV_STD_PAL_CN, "pal-cn" },
1172 { TV_STD_SECAM, "secam" },
1173 };
1174
1175 static struct drm_prop_enum_list radeon_underscan_enum_list[] =
1176 { { UNDERSCAN_OFF, "off" },
1177 { UNDERSCAN_ON, "on" },
1178 { UNDERSCAN_AUTO, "auto" },
1179 };
1180
1181 static int radeon_modeset_create_props(struct radeon_device *rdev)
1182 {
1183 int i, sz;
1184
1185 if (rdev->is_atom_bios) {
1186 rdev->mode_info.coherent_mode_property =
1187 drm_property_create(rdev->ddev,
1188 DRM_MODE_PROP_RANGE,
1189 "coherent", 2);
1190 if (!rdev->mode_info.coherent_mode_property)
1191 return -ENOMEM;
1192
1193 rdev->mode_info.coherent_mode_property->values[0] = 0;
1194 rdev->mode_info.coherent_mode_property->values[1] = 1;
1195 }
1196
1197 if (!ASIC_IS_AVIVO(rdev)) {
1198 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
1199 rdev->mode_info.tmds_pll_property =
1200 drm_property_create(rdev->ddev,
1201 DRM_MODE_PROP_ENUM,
1202 "tmds_pll", sz);
1203 for (i = 0; i < sz; i++) {
1204 drm_property_add_enum(rdev->mode_info.tmds_pll_property,
1205 i,
1206 radeon_tmds_pll_enum_list[i].type,
1207 radeon_tmds_pll_enum_list[i].name);
1208 }
1209 }
1210
1211 rdev->mode_info.load_detect_property =
1212 drm_property_create(rdev->ddev,
1213 DRM_MODE_PROP_RANGE,
1214 "load detection", 2);
1215 if (!rdev->mode_info.load_detect_property)
1216 return -ENOMEM;
1217 rdev->mode_info.load_detect_property->values[0] = 0;
1218 rdev->mode_info.load_detect_property->values[1] = 1;
1219
1220 drm_mode_create_scaling_mode_property(rdev->ddev);
1221
1222 sz = ARRAY_SIZE(radeon_tv_std_enum_list);
1223 rdev->mode_info.tv_std_property =
1224 drm_property_create(rdev->ddev,
1225 DRM_MODE_PROP_ENUM,
1226 "tv standard", sz);
1227 for (i = 0; i < sz; i++) {
1228 drm_property_add_enum(rdev->mode_info.tv_std_property,
1229 i,
1230 radeon_tv_std_enum_list[i].type,
1231 radeon_tv_std_enum_list[i].name);
1232 }
1233
1234 sz = ARRAY_SIZE(radeon_underscan_enum_list);
1235 rdev->mode_info.underscan_property =
1236 drm_property_create(rdev->ddev,
1237 DRM_MODE_PROP_ENUM,
1238 "underscan", sz);
1239 for (i = 0; i < sz; i++) {
1240 drm_property_add_enum(rdev->mode_info.underscan_property,
1241 i,
1242 radeon_underscan_enum_list[i].type,
1243 radeon_underscan_enum_list[i].name);
1244 }
1245
1246 rdev->mode_info.underscan_hborder_property =
1247 drm_property_create(rdev->ddev,
1248 DRM_MODE_PROP_RANGE,
1249 "underscan hborder", 2);
1250 if (!rdev->mode_info.underscan_hborder_property)
1251 return -ENOMEM;
1252 rdev->mode_info.underscan_hborder_property->values[0] = 0;
1253 rdev->mode_info.underscan_hborder_property->values[1] = 128;
1254
1255 rdev->mode_info.underscan_vborder_property =
1256 drm_property_create(rdev->ddev,
1257 DRM_MODE_PROP_RANGE,
1258 "underscan vborder", 2);
1259 if (!rdev->mode_info.underscan_vborder_property)
1260 return -ENOMEM;
1261 rdev->mode_info.underscan_vborder_property->values[0] = 0;
1262 rdev->mode_info.underscan_vborder_property->values[1] = 128;
1263
1264 return 0;
1265 }
1266
1267 void radeon_update_display_priority(struct radeon_device *rdev)
1268 {
1269 /* adjustment options for the display watermarks */
1270 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
1271 /* set display priority to high for r3xx, rv515 chips
1272 * this avoids flickering due to underflow to the
1273 * display controllers during heavy acceleration.
1274 * Don't force high on rs4xx igp chips as it seems to
1275 * affect the sound card. See kernel bug 15982.
1276 */
1277 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&
1278 !(rdev->flags & RADEON_IS_IGP))
1279 rdev->disp_priority = 2;
1280 else
1281 rdev->disp_priority = 0;
1282 } else
1283 rdev->disp_priority = radeon_disp_priority;
1284
1285 }
1286
1287 int radeon_modeset_init(struct radeon_device *rdev)
1288 {
1289 int i;
1290 int ret;
1291
1292 drm_mode_config_init(rdev->ddev);
1293 rdev->mode_info.mode_config_initialized = true;
1294
1295 rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs;
1296
1297 if (ASIC_IS_DCE5(rdev)) {
1298 rdev->ddev->mode_config.max_width = 16384;
1299 rdev->ddev->mode_config.max_height = 16384;
1300 } else if (ASIC_IS_AVIVO(rdev)) {
1301 rdev->ddev->mode_config.max_width = 8192;
1302 rdev->ddev->mode_config.max_height = 8192;
1303 } else {
1304 rdev->ddev->mode_config.max_width = 4096;
1305 rdev->ddev->mode_config.max_height = 4096;
1306 }
1307
1308 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
1309
1310 ret = radeon_modeset_create_props(rdev);
1311 if (ret) {
1312 return ret;
1313 }
1314
1315 /* init i2c buses */
1316 radeon_i2c_init(rdev);
1317
1318 /* check combios for a valid hardcoded EDID - Sun servers */
1319 if (!rdev->is_atom_bios) {
1320 /* check for hardcoded EDID in BIOS */
1321 radeon_combios_check_hardcoded_edid(rdev);
1322 }
1323
1324 /* allocate crtcs */
1325 for (i = 0; i < rdev->num_crtc; i++) {
1326 radeon_crtc_init(rdev->ddev, i);
1327 }
1328
1329 /* okay we should have all the bios connectors */
1330 ret = radeon_setup_enc_conn(rdev->ddev);
1331 if (!ret) {
1332 return ret;
1333 }
1334
1335 /* init dig PHYs */
1336 if (rdev->is_atom_bios)
1337 radeon_atom_encoder_init(rdev);
1338
1339 /* initialize hpd */
1340 radeon_hpd_init(rdev);
1341
1342 /* Initialize power management */
1343 radeon_pm_init(rdev);
1344
1345 radeon_fbdev_init(rdev);
1346 drm_kms_helper_poll_init(rdev->ddev);
1347
1348 return 0;
1349 }
1350
1351 void radeon_modeset_fini(struct radeon_device *rdev)
1352 {
1353 radeon_fbdev_fini(rdev);
1354 kfree(rdev->mode_info.bios_hardcoded_edid);
1355 radeon_pm_fini(rdev);
1356
1357 if (rdev->mode_info.mode_config_initialized) {
1358 drm_kms_helper_poll_fini(rdev->ddev);
1359 radeon_hpd_fini(rdev);
1360 drm_mode_config_cleanup(rdev->ddev);
1361 rdev->mode_info.mode_config_initialized = false;
1362 }
1363 /* free i2c buses */
1364 radeon_i2c_fini(rdev);
1365 }
1366
1367 static bool is_hdtv_mode(struct drm_display_mode *mode)
1368 {
1369 /* try and guess if this is a tv or a monitor */
1370 if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */
1371 (mode->vdisplay == 576) || /* 576p */
1372 (mode->vdisplay == 720) || /* 720p */
1373 (mode->vdisplay == 1080)) /* 1080p */
1374 return true;
1375 else
1376 return false;
1377 }
1378
1379 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
1380 struct drm_display_mode *mode,
1381 struct drm_display_mode *adjusted_mode)
1382 {
1383 struct drm_device *dev = crtc->dev;
1384 struct radeon_device *rdev = dev->dev_private;
1385 struct drm_encoder *encoder;
1386 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1387 struct radeon_encoder *radeon_encoder;
1388 struct drm_connector *connector;
1389 struct radeon_connector *radeon_connector;
1390 bool first = true;
1391 u32 src_v = 1, dst_v = 1;
1392 u32 src_h = 1, dst_h = 1;
1393
1394 radeon_crtc->h_border = 0;
1395 radeon_crtc->v_border = 0;
1396
1397 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1398 if (encoder->crtc != crtc)
1399 continue;
1400 radeon_encoder = to_radeon_encoder(encoder);
1401 connector = radeon_get_connector_for_encoder(encoder);
1402 radeon_connector = to_radeon_connector(connector);
1403
1404 if (first) {
1405 /* set scaling */
1406 if (radeon_encoder->rmx_type == RMX_OFF)
1407 radeon_crtc->rmx_type = RMX_OFF;
1408 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
1409 mode->vdisplay < radeon_encoder->native_mode.vdisplay)
1410 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
1411 else
1412 radeon_crtc->rmx_type = RMX_OFF;
1413 /* copy native mode */
1414 memcpy(&radeon_crtc->native_mode,
1415 &radeon_encoder->native_mode,
1416 sizeof(struct drm_display_mode));
1417 src_v = crtc->mode.vdisplay;
1418 dst_v = radeon_crtc->native_mode.vdisplay;
1419 src_h = crtc->mode.hdisplay;
1420 dst_h = radeon_crtc->native_mode.hdisplay;
1421
1422 /* fix up for overscan on hdmi */
1423 if (ASIC_IS_AVIVO(rdev) &&
1424 (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
1425 ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
1426 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
1427 drm_detect_hdmi_monitor(radeon_connector->edid) &&
1428 is_hdtv_mode(mode)))) {
1429 if (radeon_encoder->underscan_hborder != 0)
1430 radeon_crtc->h_border = radeon_encoder->underscan_hborder;
1431 else
1432 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16;
1433 if (radeon_encoder->underscan_vborder != 0)
1434 radeon_crtc->v_border = radeon_encoder->underscan_vborder;
1435 else
1436 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16;
1437 radeon_crtc->rmx_type = RMX_FULL;
1438 src_v = crtc->mode.vdisplay;
1439 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2);
1440 src_h = crtc->mode.hdisplay;
1441 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2);
1442 }
1443 first = false;
1444 } else {
1445 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
1446 /* WARNING: Right now this can't happen but
1447 * in the future we need to check that scaling
1448 * are consistent across different encoder
1449 * (ie all encoder can work with the same
1450 * scaling).
1451 */
1452 DRM_ERROR("Scaling not consistent across encoder.\n");
1453 return false;
1454 }
1455 }
1456 }
1457 if (radeon_crtc->rmx_type != RMX_OFF) {
1458 fixed20_12 a, b;
1459 a.full = dfixed_const(src_v);
1460 b.full = dfixed_const(dst_v);
1461 radeon_crtc->vsc.full = dfixed_div(a, b);
1462 a.full = dfixed_const(src_h);
1463 b.full = dfixed_const(dst_h);
1464 radeon_crtc->hsc.full = dfixed_div(a, b);
1465 } else {
1466 radeon_crtc->vsc.full = dfixed_const(1);
1467 radeon_crtc->hsc.full = dfixed_const(1);
1468 }
1469 return true;
1470 }
1471
1472 /*
1473 * Retrieve current video scanout position of crtc on a given gpu.
1474 *
1475 * \param dev Device to query.
1476 * \param crtc Crtc to query.
1477 * \param *vpos Location where vertical scanout position should be stored.
1478 * \param *hpos Location where horizontal scanout position should go.
1479 *
1480 * Returns vpos as a positive number while in active scanout area.
1481 * Returns vpos as a negative number inside vblank, counting the number
1482 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
1483 * until start of active scanout / end of vblank."
1484 *
1485 * \return Flags, or'ed together as follows:
1486 *
1487 * DRM_SCANOUTPOS_VALID = Query successful.
1488 * DRM_SCANOUTPOS_INVBL = Inside vblank.
1489 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
1490 * this flag means that returned position may be offset by a constant but
1491 * unknown small number of scanlines wrt. real scanout position.
1492 *
1493 */
1494 int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos)
1495 {
1496 u32 stat_crtc = 0, vbl = 0, position = 0;
1497 int vbl_start, vbl_end, vtotal, ret = 0;
1498 bool in_vbl = true;
1499
1500 struct radeon_device *rdev = dev->dev_private;
1501
1502 if (ASIC_IS_DCE4(rdev)) {
1503 if (crtc == 0) {
1504 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1505 EVERGREEN_CRTC0_REGISTER_OFFSET);
1506 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1507 EVERGREEN_CRTC0_REGISTER_OFFSET);
1508 ret |= DRM_SCANOUTPOS_VALID;
1509 }
1510 if (crtc == 1) {
1511 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1512 EVERGREEN_CRTC1_REGISTER_OFFSET);
1513 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1514 EVERGREEN_CRTC1_REGISTER_OFFSET);
1515 ret |= DRM_SCANOUTPOS_VALID;
1516 }
1517 if (crtc == 2) {
1518 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1519 EVERGREEN_CRTC2_REGISTER_OFFSET);
1520 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1521 EVERGREEN_CRTC2_REGISTER_OFFSET);
1522 ret |= DRM_SCANOUTPOS_VALID;
1523 }
1524 if (crtc == 3) {
1525 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1526 EVERGREEN_CRTC3_REGISTER_OFFSET);
1527 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1528 EVERGREEN_CRTC3_REGISTER_OFFSET);
1529 ret |= DRM_SCANOUTPOS_VALID;
1530 }
1531 if (crtc == 4) {
1532 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1533 EVERGREEN_CRTC4_REGISTER_OFFSET);
1534 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1535 EVERGREEN_CRTC4_REGISTER_OFFSET);
1536 ret |= DRM_SCANOUTPOS_VALID;
1537 }
1538 if (crtc == 5) {
1539 vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END +
1540 EVERGREEN_CRTC5_REGISTER_OFFSET);
1541 position = RREG32(EVERGREEN_CRTC_STATUS_POSITION +
1542 EVERGREEN_CRTC5_REGISTER_OFFSET);
1543 ret |= DRM_SCANOUTPOS_VALID;
1544 }
1545 } else if (ASIC_IS_AVIVO(rdev)) {
1546 if (crtc == 0) {
1547 vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END);
1548 position = RREG32(AVIVO_D1CRTC_STATUS_POSITION);
1549 ret |= DRM_SCANOUTPOS_VALID;
1550 }
1551 if (crtc == 1) {
1552 vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END);
1553 position = RREG32(AVIVO_D2CRTC_STATUS_POSITION);
1554 ret |= DRM_SCANOUTPOS_VALID;
1555 }
1556 } else {
1557 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */
1558 if (crtc == 0) {
1559 /* Assume vbl_end == 0, get vbl_start from
1560 * upper 16 bits.
1561 */
1562 vbl = (RREG32(RADEON_CRTC_V_TOTAL_DISP) &
1563 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1564 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */
1565 position = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1566 stat_crtc = RREG32(RADEON_CRTC_STATUS);
1567 if (!(stat_crtc & 1))
1568 in_vbl = false;
1569
1570 ret |= DRM_SCANOUTPOS_VALID;
1571 }
1572 if (crtc == 1) {
1573 vbl = (RREG32(RADEON_CRTC2_V_TOTAL_DISP) &
1574 RADEON_CRTC_V_DISP) >> RADEON_CRTC_V_DISP_SHIFT;
1575 position = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;
1576 stat_crtc = RREG32(RADEON_CRTC2_STATUS);
1577 if (!(stat_crtc & 1))
1578 in_vbl = false;
1579
1580 ret |= DRM_SCANOUTPOS_VALID;
1581 }
1582 }
1583
1584 /* Decode into vertical and horizontal scanout position. */
1585 *vpos = position & 0x1fff;
1586 *hpos = (position >> 16) & 0x1fff;
1587
1588 /* Valid vblank area boundaries from gpu retrieved? */
1589 if (vbl > 0) {
1590 /* Yes: Decode. */
1591 ret |= DRM_SCANOUTPOS_ACCURATE;
1592 vbl_start = vbl & 0x1fff;
1593 vbl_end = (vbl >> 16) & 0x1fff;
1594 }
1595 else {
1596 /* No: Fake something reasonable which gives at least ok results. */
1597 vbl_start = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vdisplay;
1598 vbl_end = 0;
1599 }
1600
1601 /* Test scanout position against vblank region. */
1602 if ((*vpos < vbl_start) && (*vpos >= vbl_end))
1603 in_vbl = false;
1604
1605 /* Check if inside vblank area and apply corrective offsets:
1606 * vpos will then be >=0 in video scanout area, but negative
1607 * within vblank area, counting down the number of lines until
1608 * start of scanout.
1609 */
1610
1611 /* Inside "upper part" of vblank area? Apply corrective offset if so: */
1612 if (in_vbl && (*vpos >= vbl_start)) {
1613 vtotal = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vtotal;
1614 *vpos = *vpos - vtotal;
1615 }
1616
1617 /* Correct for shifted end of vbl at vbl_end. */
1618 *vpos = *vpos - vbl_end;
1619
1620 /* In vblank? */
1621 if (in_vbl)
1622 ret |= DRM_SCANOUTPOS_INVBL;
1623
1624 return ret;
1625 }
linux-next