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Merge branch 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[deliverable/linux.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 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("%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 evergreen_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("%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 legacy_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 uint32_t dac2_cntl;
108
109 dac2_cntl = RREG32(RADEON_DAC_CNTL2);
110 if (radeon_crtc->crtc_id == 0)
111 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
112 else
113 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL;
114 WREG32(RADEON_DAC_CNTL2, dac2_cntl);
115
116 WREG8(RADEON_PALETTE_INDEX, 0);
117 for (i = 0; i < 256; i++) {
118 WREG32(RADEON_PALETTE_30_DATA,
119 (radeon_crtc->lut_r[i] << 20) |
120 (radeon_crtc->lut_g[i] << 10) |
121 (radeon_crtc->lut_b[i] << 0));
122 }
123 }
124
125 void radeon_crtc_load_lut(struct drm_crtc *crtc)
126 {
127 struct drm_device *dev = crtc->dev;
128 struct radeon_device *rdev = dev->dev_private;
129
130 if (!crtc->enabled)
131 return;
132
133 if (ASIC_IS_DCE4(rdev))
134 evergreen_crtc_load_lut(crtc);
135 else if (ASIC_IS_AVIVO(rdev))
136 avivo_crtc_load_lut(crtc);
137 else
138 legacy_crtc_load_lut(crtc);
139 }
140
141 /** Sets the color ramps on behalf of fbcon */
142 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
143 u16 blue, int regno)
144 {
145 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
146
147 radeon_crtc->lut_r[regno] = red >> 6;
148 radeon_crtc->lut_g[regno] = green >> 6;
149 radeon_crtc->lut_b[regno] = blue >> 6;
150 }
151
152 /** Gets the color ramps on behalf of fbcon */
153 void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
154 u16 *blue, int regno)
155 {
156 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
157
158 *red = radeon_crtc->lut_r[regno] << 6;
159 *green = radeon_crtc->lut_g[regno] << 6;
160 *blue = radeon_crtc->lut_b[regno] << 6;
161 }
162
163 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
164 u16 *blue, uint32_t size)
165 {
166 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
167 int i;
168
169 if (size != 256) {
170 return;
171 }
172
173 /* userspace palettes are always correct as is */
174 for (i = 0; i < 256; i++) {
175 radeon_crtc->lut_r[i] = red[i] >> 6;
176 radeon_crtc->lut_g[i] = green[i] >> 6;
177 radeon_crtc->lut_b[i] = blue[i] >> 6;
178 }
179 radeon_crtc_load_lut(crtc);
180 }
181
182 static void radeon_crtc_destroy(struct drm_crtc *crtc)
183 {
184 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
185
186 drm_crtc_cleanup(crtc);
187 kfree(radeon_crtc);
188 }
189
190 static const struct drm_crtc_funcs radeon_crtc_funcs = {
191 .cursor_set = radeon_crtc_cursor_set,
192 .cursor_move = radeon_crtc_cursor_move,
193 .gamma_set = radeon_crtc_gamma_set,
194 .set_config = drm_crtc_helper_set_config,
195 .destroy = radeon_crtc_destroy,
196 };
197
198 static void radeon_crtc_init(struct drm_device *dev, int index)
199 {
200 struct radeon_device *rdev = dev->dev_private;
201 struct radeon_crtc *radeon_crtc;
202 int i;
203
204 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
205 if (radeon_crtc == NULL)
206 return;
207
208 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
209
210 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
211 radeon_crtc->crtc_id = index;
212 rdev->mode_info.crtcs[index] = radeon_crtc;
213
214 #if 0
215 radeon_crtc->mode_set.crtc = &radeon_crtc->base;
216 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
217 radeon_crtc->mode_set.num_connectors = 0;
218 #endif
219
220 for (i = 0; i < 256; i++) {
221 radeon_crtc->lut_r[i] = i << 2;
222 radeon_crtc->lut_g[i] = i << 2;
223 radeon_crtc->lut_b[i] = i << 2;
224 }
225
226 if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom))
227 radeon_atombios_init_crtc(dev, radeon_crtc);
228 else
229 radeon_legacy_init_crtc(dev, radeon_crtc);
230 }
231
232 static const char *encoder_names[34] = {
233 "NONE",
234 "INTERNAL_LVDS",
235 "INTERNAL_TMDS1",
236 "INTERNAL_TMDS2",
237 "INTERNAL_DAC1",
238 "INTERNAL_DAC2",
239 "INTERNAL_SDVOA",
240 "INTERNAL_SDVOB",
241 "SI170B",
242 "CH7303",
243 "CH7301",
244 "INTERNAL_DVO1",
245 "EXTERNAL_SDVOA",
246 "EXTERNAL_SDVOB",
247 "TITFP513",
248 "INTERNAL_LVTM1",
249 "VT1623",
250 "HDMI_SI1930",
251 "HDMI_INTERNAL",
252 "INTERNAL_KLDSCP_TMDS1",
253 "INTERNAL_KLDSCP_DVO1",
254 "INTERNAL_KLDSCP_DAC1",
255 "INTERNAL_KLDSCP_DAC2",
256 "SI178",
257 "MVPU_FPGA",
258 "INTERNAL_DDI",
259 "VT1625",
260 "HDMI_SI1932",
261 "DP_AN9801",
262 "DP_DP501",
263 "INTERNAL_UNIPHY",
264 "INTERNAL_KLDSCP_LVTMA",
265 "INTERNAL_UNIPHY1",
266 "INTERNAL_UNIPHY2",
267 };
268
269 static const char *connector_names[15] = {
270 "Unknown",
271 "VGA",
272 "DVI-I",
273 "DVI-D",
274 "DVI-A",
275 "Composite",
276 "S-video",
277 "LVDS",
278 "Component",
279 "DIN",
280 "DisplayPort",
281 "HDMI-A",
282 "HDMI-B",
283 "TV",
284 "eDP",
285 };
286
287 static const char *hpd_names[6] = {
288 "HPD1",
289 "HPD2",
290 "HPD3",
291 "HPD4",
292 "HPD5",
293 "HPD6",
294 };
295
296 static void radeon_print_display_setup(struct drm_device *dev)
297 {
298 struct drm_connector *connector;
299 struct radeon_connector *radeon_connector;
300 struct drm_encoder *encoder;
301 struct radeon_encoder *radeon_encoder;
302 uint32_t devices;
303 int i = 0;
304
305 DRM_INFO("Radeon Display Connectors\n");
306 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
307 radeon_connector = to_radeon_connector(connector);
308 DRM_INFO("Connector %d:\n", i);
309 DRM_INFO(" %s\n", connector_names[connector->connector_type]);
310 if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
311 DRM_INFO(" %s\n", hpd_names[radeon_connector->hpd.hpd]);
312 if (radeon_connector->ddc_bus) {
313 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
314 radeon_connector->ddc_bus->rec.mask_clk_reg,
315 radeon_connector->ddc_bus->rec.mask_data_reg,
316 radeon_connector->ddc_bus->rec.a_clk_reg,
317 radeon_connector->ddc_bus->rec.a_data_reg,
318 radeon_connector->ddc_bus->rec.en_clk_reg,
319 radeon_connector->ddc_bus->rec.en_data_reg,
320 radeon_connector->ddc_bus->rec.y_clk_reg,
321 radeon_connector->ddc_bus->rec.y_data_reg);
322 } else {
323 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
324 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
325 connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
326 connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
327 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
328 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
329 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
330 }
331 DRM_INFO(" Encoders:\n");
332 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
333 radeon_encoder = to_radeon_encoder(encoder);
334 devices = radeon_encoder->devices & radeon_connector->devices;
335 if (devices) {
336 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
337 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
338 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
339 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
340 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
341 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
342 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
343 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
344 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
345 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
346 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
347 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
348 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
349 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
350 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
351 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
352 if (devices & ATOM_DEVICE_TV1_SUPPORT)
353 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
354 if (devices & ATOM_DEVICE_CV_SUPPORT)
355 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
356 }
357 }
358 i++;
359 }
360 }
361
362 static bool radeon_setup_enc_conn(struct drm_device *dev)
363 {
364 struct radeon_device *rdev = dev->dev_private;
365 struct drm_connector *drm_connector;
366 bool ret = false;
367
368 if (rdev->bios) {
369 if (rdev->is_atom_bios) {
370 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
371 if (ret == false)
372 ret = radeon_get_atom_connector_info_from_object_table(dev);
373 } else {
374 ret = radeon_get_legacy_connector_info_from_bios(dev);
375 if (ret == false)
376 ret = radeon_get_legacy_connector_info_from_table(dev);
377 }
378 } else {
379 if (!ASIC_IS_AVIVO(rdev))
380 ret = radeon_get_legacy_connector_info_from_table(dev);
381 }
382 if (ret) {
383 radeon_setup_encoder_clones(dev);
384 radeon_print_display_setup(dev);
385 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head)
386 radeon_ddc_dump(drm_connector);
387 }
388
389 return ret;
390 }
391
392 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
393 {
394 struct drm_device *dev = radeon_connector->base.dev;
395 struct radeon_device *rdev = dev->dev_private;
396 int ret = 0;
397
398 if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
399 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
400 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
401 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
402 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
403 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
404 }
405 if (!radeon_connector->ddc_bus)
406 return -1;
407 if (!radeon_connector->edid) {
408 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
409 }
410 /* some servers provide a hardcoded edid in rom for KVMs */
411 if (!radeon_connector->edid)
412 radeon_connector->edid = radeon_combios_get_hardcoded_edid(rdev);
413 if (radeon_connector->edid) {
414 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
415 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
416 return ret;
417 }
418 drm_mode_connector_update_edid_property(&radeon_connector->base, NULL);
419 return 0;
420 }
421
422 static int radeon_ddc_dump(struct drm_connector *connector)
423 {
424 struct edid *edid;
425 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
426 int ret = 0;
427
428 if (!radeon_connector->ddc_bus)
429 return -1;
430 edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
431 if (edid) {
432 kfree(edid);
433 }
434 return ret;
435 }
436
437 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
438 {
439 uint64_t mod;
440
441 n += d / 2;
442
443 mod = do_div(n, d);
444 return n;
445 }
446
447 static void radeon_compute_pll_legacy(struct radeon_pll *pll,
448 uint64_t freq,
449 uint32_t *dot_clock_p,
450 uint32_t *fb_div_p,
451 uint32_t *frac_fb_div_p,
452 uint32_t *ref_div_p,
453 uint32_t *post_div_p)
454 {
455 uint32_t min_ref_div = pll->min_ref_div;
456 uint32_t max_ref_div = pll->max_ref_div;
457 uint32_t min_post_div = pll->min_post_div;
458 uint32_t max_post_div = pll->max_post_div;
459 uint32_t min_fractional_feed_div = 0;
460 uint32_t max_fractional_feed_div = 0;
461 uint32_t best_vco = pll->best_vco;
462 uint32_t best_post_div = 1;
463 uint32_t best_ref_div = 1;
464 uint32_t best_feedback_div = 1;
465 uint32_t best_frac_feedback_div = 0;
466 uint32_t best_freq = -1;
467 uint32_t best_error = 0xffffffff;
468 uint32_t best_vco_diff = 1;
469 uint32_t post_div;
470 u32 pll_out_min, pll_out_max;
471
472 DRM_DEBUG("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
473 freq = freq * 1000;
474
475 if (pll->flags & RADEON_PLL_IS_LCD) {
476 pll_out_min = pll->lcd_pll_out_min;
477 pll_out_max = pll->lcd_pll_out_max;
478 } else {
479 pll_out_min = pll->pll_out_min;
480 pll_out_max = pll->pll_out_max;
481 }
482
483 if (pll->flags & RADEON_PLL_USE_REF_DIV)
484 min_ref_div = max_ref_div = pll->reference_div;
485 else {
486 while (min_ref_div < max_ref_div-1) {
487 uint32_t mid = (min_ref_div + max_ref_div) / 2;
488 uint32_t pll_in = pll->reference_freq / mid;
489 if (pll_in < pll->pll_in_min)
490 max_ref_div = mid;
491 else if (pll_in > pll->pll_in_max)
492 min_ref_div = mid;
493 else
494 break;
495 }
496 }
497
498 if (pll->flags & RADEON_PLL_USE_POST_DIV)
499 min_post_div = max_post_div = pll->post_div;
500
501 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
502 min_fractional_feed_div = pll->min_frac_feedback_div;
503 max_fractional_feed_div = pll->max_frac_feedback_div;
504 }
505
506 for (post_div = min_post_div; post_div <= max_post_div; ++post_div) {
507 uint32_t ref_div;
508
509 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
510 continue;
511
512 /* legacy radeons only have a few post_divs */
513 if (pll->flags & RADEON_PLL_LEGACY) {
514 if ((post_div == 5) ||
515 (post_div == 7) ||
516 (post_div == 9) ||
517 (post_div == 10) ||
518 (post_div == 11) ||
519 (post_div == 13) ||
520 (post_div == 14) ||
521 (post_div == 15))
522 continue;
523 }
524
525 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
526 uint32_t feedback_div, current_freq = 0, error, vco_diff;
527 uint32_t pll_in = pll->reference_freq / ref_div;
528 uint32_t min_feed_div = pll->min_feedback_div;
529 uint32_t max_feed_div = pll->max_feedback_div + 1;
530
531 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
532 continue;
533
534 while (min_feed_div < max_feed_div) {
535 uint32_t vco;
536 uint32_t min_frac_feed_div = min_fractional_feed_div;
537 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
538 uint32_t frac_feedback_div;
539 uint64_t tmp;
540
541 feedback_div = (min_feed_div + max_feed_div) / 2;
542
543 tmp = (uint64_t)pll->reference_freq * feedback_div;
544 vco = radeon_div(tmp, ref_div);
545
546 if (vco < pll_out_min) {
547 min_feed_div = feedback_div + 1;
548 continue;
549 } else if (vco > pll_out_max) {
550 max_feed_div = feedback_div;
551 continue;
552 }
553
554 while (min_frac_feed_div < max_frac_feed_div) {
555 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
556 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
557 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
558 current_freq = radeon_div(tmp, ref_div * post_div);
559
560 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
561 error = freq - current_freq;
562 error = error < 0 ? 0xffffffff : error;
563 } else
564 error = abs(current_freq - freq);
565 vco_diff = abs(vco - best_vco);
566
567 if ((best_vco == 0 && error < best_error) ||
568 (best_vco != 0 &&
569 (error < best_error - 100 ||
570 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
571 best_post_div = post_div;
572 best_ref_div = ref_div;
573 best_feedback_div = feedback_div;
574 best_frac_feedback_div = frac_feedback_div;
575 best_freq = current_freq;
576 best_error = error;
577 best_vco_diff = vco_diff;
578 } else if (current_freq == freq) {
579 if (best_freq == -1) {
580 best_post_div = post_div;
581 best_ref_div = ref_div;
582 best_feedback_div = feedback_div;
583 best_frac_feedback_div = frac_feedback_div;
584 best_freq = current_freq;
585 best_error = error;
586 best_vco_diff = vco_diff;
587 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
588 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
589 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
590 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
591 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
592 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
593 best_post_div = post_div;
594 best_ref_div = ref_div;
595 best_feedback_div = feedback_div;
596 best_frac_feedback_div = frac_feedback_div;
597 best_freq = current_freq;
598 best_error = error;
599 best_vco_diff = vco_diff;
600 }
601 }
602 if (current_freq < freq)
603 min_frac_feed_div = frac_feedback_div + 1;
604 else
605 max_frac_feed_div = frac_feedback_div;
606 }
607 if (current_freq < freq)
608 min_feed_div = feedback_div + 1;
609 else
610 max_feed_div = feedback_div;
611 }
612 }
613 }
614
615 *dot_clock_p = best_freq / 10000;
616 *fb_div_p = best_feedback_div;
617 *frac_fb_div_p = best_frac_feedback_div;
618 *ref_div_p = best_ref_div;
619 *post_div_p = best_post_div;
620 }
621
622 static bool
623 calc_fb_div(struct radeon_pll *pll,
624 uint32_t freq,
625 uint32_t post_div,
626 uint32_t ref_div,
627 uint32_t *fb_div,
628 uint32_t *fb_div_frac)
629 {
630 fixed20_12 feedback_divider, a, b;
631 u32 vco_freq;
632
633 vco_freq = freq * post_div;
634 /* feedback_divider = vco_freq * ref_div / pll->reference_freq; */
635 a.full = dfixed_const(pll->reference_freq);
636 feedback_divider.full = dfixed_const(vco_freq);
637 feedback_divider.full = dfixed_div(feedback_divider, a);
638 a.full = dfixed_const(ref_div);
639 feedback_divider.full = dfixed_mul(feedback_divider, a);
640
641 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
642 /* feedback_divider = floor((feedback_divider * 10.0) + 0.5) * 0.1; */
643 a.full = dfixed_const(10);
644 feedback_divider.full = dfixed_mul(feedback_divider, a);
645 feedback_divider.full += dfixed_const_half(0);
646 feedback_divider.full = dfixed_floor(feedback_divider);
647 feedback_divider.full = dfixed_div(feedback_divider, a);
648
649 /* *fb_div = floor(feedback_divider); */
650 a.full = dfixed_floor(feedback_divider);
651 *fb_div = dfixed_trunc(a);
652 /* *fb_div_frac = fmod(feedback_divider, 1.0) * 10.0; */
653 a.full = dfixed_const(10);
654 b.full = dfixed_mul(feedback_divider, a);
655
656 feedback_divider.full = dfixed_floor(feedback_divider);
657 feedback_divider.full = dfixed_mul(feedback_divider, a);
658 feedback_divider.full = b.full - feedback_divider.full;
659 *fb_div_frac = dfixed_trunc(feedback_divider);
660 } else {
661 /* *fb_div = floor(feedback_divider + 0.5); */
662 feedback_divider.full += dfixed_const_half(0);
663 feedback_divider.full = dfixed_floor(feedback_divider);
664
665 *fb_div = dfixed_trunc(feedback_divider);
666 *fb_div_frac = 0;
667 }
668
669 if (((*fb_div) < pll->min_feedback_div) || ((*fb_div) > pll->max_feedback_div))
670 return false;
671 else
672 return true;
673 }
674
675 static bool
676 calc_fb_ref_div(struct radeon_pll *pll,
677 uint32_t freq,
678 uint32_t post_div,
679 uint32_t *fb_div,
680 uint32_t *fb_div_frac,
681 uint32_t *ref_div)
682 {
683 fixed20_12 ffreq, max_error, error, pll_out, a;
684 u32 vco;
685 u32 pll_out_min, pll_out_max;
686
687 if (pll->flags & RADEON_PLL_IS_LCD) {
688 pll_out_min = pll->lcd_pll_out_min;
689 pll_out_max = pll->lcd_pll_out_max;
690 } else {
691 pll_out_min = pll->pll_out_min;
692 pll_out_max = pll->pll_out_max;
693 }
694
695 ffreq.full = dfixed_const(freq);
696 /* max_error = ffreq * 0.0025; */
697 a.full = dfixed_const(400);
698 max_error.full = dfixed_div(ffreq, a);
699
700 for ((*ref_div) = pll->min_ref_div; (*ref_div) < pll->max_ref_div; ++(*ref_div)) {
701 if (calc_fb_div(pll, freq, post_div, (*ref_div), fb_div, fb_div_frac)) {
702 vco = pll->reference_freq * (((*fb_div) * 10) + (*fb_div_frac));
703 vco = vco / ((*ref_div) * 10);
704
705 if ((vco < pll_out_min) || (vco > pll_out_max))
706 continue;
707
708 /* pll_out = vco / post_div; */
709 a.full = dfixed_const(post_div);
710 pll_out.full = dfixed_const(vco);
711 pll_out.full = dfixed_div(pll_out, a);
712
713 if (pll_out.full >= ffreq.full) {
714 error.full = pll_out.full - ffreq.full;
715 if (error.full <= max_error.full)
716 return true;
717 }
718 }
719 }
720 return false;
721 }
722
723 static void radeon_compute_pll_new(struct radeon_pll *pll,
724 uint64_t freq,
725 uint32_t *dot_clock_p,
726 uint32_t *fb_div_p,
727 uint32_t *frac_fb_div_p,
728 uint32_t *ref_div_p,
729 uint32_t *post_div_p)
730 {
731 u32 fb_div = 0, fb_div_frac = 0, post_div = 0, ref_div = 0;
732 u32 best_freq = 0, vco_frequency;
733 u32 pll_out_min, pll_out_max;
734
735 if (pll->flags & RADEON_PLL_IS_LCD) {
736 pll_out_min = pll->lcd_pll_out_min;
737 pll_out_max = pll->lcd_pll_out_max;
738 } else {
739 pll_out_min = pll->pll_out_min;
740 pll_out_max = pll->pll_out_max;
741 }
742
743 /* freq = freq / 10; */
744 do_div(freq, 10);
745
746 if (pll->flags & RADEON_PLL_USE_POST_DIV) {
747 post_div = pll->post_div;
748 if ((post_div < pll->min_post_div) || (post_div > pll->max_post_div))
749 goto done;
750
751 vco_frequency = freq * post_div;
752 if ((vco_frequency < pll_out_min) || (vco_frequency > pll_out_max))
753 goto done;
754
755 if (pll->flags & RADEON_PLL_USE_REF_DIV) {
756 ref_div = pll->reference_div;
757 if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
758 goto done;
759 if (!calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
760 goto done;
761 }
762 } else {
763 for (post_div = pll->max_post_div; post_div >= pll->min_post_div; --post_div) {
764 if (pll->flags & RADEON_PLL_LEGACY) {
765 if ((post_div == 5) ||
766 (post_div == 7) ||
767 (post_div == 9) ||
768 (post_div == 10) ||
769 (post_div == 11))
770 continue;
771 }
772
773 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
774 continue;
775
776 vco_frequency = freq * post_div;
777 if ((vco_frequency < pll_out_min) || (vco_frequency > pll_out_max))
778 continue;
779 if (pll->flags & RADEON_PLL_USE_REF_DIV) {
780 ref_div = pll->reference_div;
781 if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
782 goto done;
783 if (calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
784 break;
785 } else {
786 if (calc_fb_ref_div(pll, freq, post_div, &fb_div, &fb_div_frac, &ref_div))
787 break;
788 }
789 }
790 }
791
792 best_freq = pll->reference_freq * 10 * fb_div;
793 best_freq += pll->reference_freq * fb_div_frac;
794 best_freq = best_freq / (ref_div * post_div);
795
796 done:
797 if (best_freq == 0)
798 DRM_ERROR("Couldn't find valid PLL dividers\n");
799
800 *dot_clock_p = best_freq / 10;
801 *fb_div_p = fb_div;
802 *frac_fb_div_p = fb_div_frac;
803 *ref_div_p = ref_div;
804 *post_div_p = post_div;
805
806 DRM_DEBUG("%u %d.%d, %d, %d\n", *dot_clock_p, *fb_div_p, *frac_fb_div_p, *ref_div_p, *post_div_p);
807 }
808
809 void radeon_compute_pll(struct radeon_pll *pll,
810 uint64_t freq,
811 uint32_t *dot_clock_p,
812 uint32_t *fb_div_p,
813 uint32_t *frac_fb_div_p,
814 uint32_t *ref_div_p,
815 uint32_t *post_div_p)
816 {
817 switch (pll->algo) {
818 case PLL_ALGO_NEW:
819 radeon_compute_pll_new(pll, freq, dot_clock_p, fb_div_p,
820 frac_fb_div_p, ref_div_p, post_div_p);
821 break;
822 case PLL_ALGO_LEGACY:
823 default:
824 radeon_compute_pll_legacy(pll, freq, dot_clock_p, fb_div_p,
825 frac_fb_div_p, ref_div_p, post_div_p);
826 break;
827 }
828 }
829
830 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
831 {
832 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
833
834 if (radeon_fb->obj)
835 drm_gem_object_unreference_unlocked(radeon_fb->obj);
836 drm_framebuffer_cleanup(fb);
837 kfree(radeon_fb);
838 }
839
840 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
841 struct drm_file *file_priv,
842 unsigned int *handle)
843 {
844 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
845
846 return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
847 }
848
849 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
850 .destroy = radeon_user_framebuffer_destroy,
851 .create_handle = radeon_user_framebuffer_create_handle,
852 };
853
854 void
855 radeon_framebuffer_init(struct drm_device *dev,
856 struct radeon_framebuffer *rfb,
857 struct drm_mode_fb_cmd *mode_cmd,
858 struct drm_gem_object *obj)
859 {
860 rfb->obj = obj;
861 drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs);
862 drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd);
863 }
864
865 static struct drm_framebuffer *
866 radeon_user_framebuffer_create(struct drm_device *dev,
867 struct drm_file *file_priv,
868 struct drm_mode_fb_cmd *mode_cmd)
869 {
870 struct drm_gem_object *obj;
871 struct radeon_framebuffer *radeon_fb;
872
873 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
874 if (obj == NULL) {
875 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
876 "can't create framebuffer\n", mode_cmd->handle);
877 return NULL;
878 }
879
880 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
881 if (radeon_fb == NULL) {
882 return NULL;
883 }
884
885 radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj);
886
887 return &radeon_fb->base;
888 }
889
890 static void radeon_output_poll_changed(struct drm_device *dev)
891 {
892 struct radeon_device *rdev = dev->dev_private;
893 radeon_fb_output_poll_changed(rdev);
894 }
895
896 static const struct drm_mode_config_funcs radeon_mode_funcs = {
897 .fb_create = radeon_user_framebuffer_create,
898 .output_poll_changed = radeon_output_poll_changed
899 };
900
901 struct drm_prop_enum_list {
902 int type;
903 char *name;
904 };
905
906 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
907 { { 0, "driver" },
908 { 1, "bios" },
909 };
910
911 static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
912 { { TV_STD_NTSC, "ntsc" },
913 { TV_STD_PAL, "pal" },
914 { TV_STD_PAL_M, "pal-m" },
915 { TV_STD_PAL_60, "pal-60" },
916 { TV_STD_NTSC_J, "ntsc-j" },
917 { TV_STD_SCART_PAL, "scart-pal" },
918 { TV_STD_PAL_CN, "pal-cn" },
919 { TV_STD_SECAM, "secam" },
920 };
921
922 static int radeon_modeset_create_props(struct radeon_device *rdev)
923 {
924 int i, sz;
925
926 if (rdev->is_atom_bios) {
927 rdev->mode_info.coherent_mode_property =
928 drm_property_create(rdev->ddev,
929 DRM_MODE_PROP_RANGE,
930 "coherent", 2);
931 if (!rdev->mode_info.coherent_mode_property)
932 return -ENOMEM;
933
934 rdev->mode_info.coherent_mode_property->values[0] = 0;
935 rdev->mode_info.coherent_mode_property->values[1] = 1;
936 }
937
938 if (!ASIC_IS_AVIVO(rdev)) {
939 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
940 rdev->mode_info.tmds_pll_property =
941 drm_property_create(rdev->ddev,
942 DRM_MODE_PROP_ENUM,
943 "tmds_pll", sz);
944 for (i = 0; i < sz; i++) {
945 drm_property_add_enum(rdev->mode_info.tmds_pll_property,
946 i,
947 radeon_tmds_pll_enum_list[i].type,
948 radeon_tmds_pll_enum_list[i].name);
949 }
950 }
951
952 rdev->mode_info.load_detect_property =
953 drm_property_create(rdev->ddev,
954 DRM_MODE_PROP_RANGE,
955 "load detection", 2);
956 if (!rdev->mode_info.load_detect_property)
957 return -ENOMEM;
958 rdev->mode_info.load_detect_property->values[0] = 0;
959 rdev->mode_info.load_detect_property->values[1] = 1;
960
961 drm_mode_create_scaling_mode_property(rdev->ddev);
962
963 sz = ARRAY_SIZE(radeon_tv_std_enum_list);
964 rdev->mode_info.tv_std_property =
965 drm_property_create(rdev->ddev,
966 DRM_MODE_PROP_ENUM,
967 "tv standard", sz);
968 for (i = 0; i < sz; i++) {
969 drm_property_add_enum(rdev->mode_info.tv_std_property,
970 i,
971 radeon_tv_std_enum_list[i].type,
972 radeon_tv_std_enum_list[i].name);
973 }
974
975 return 0;
976 }
977
978 void radeon_update_display_priority(struct radeon_device *rdev)
979 {
980 /* adjustment options for the display watermarks */
981 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
982 /* set display priority to high for r3xx, rv515 chips
983 * this avoids flickering due to underflow to the
984 * display controllers during heavy acceleration.
985 * Don't force high on rs4xx igp chips as it seems to
986 * affect the sound card. See kernel bug 15982.
987 */
988 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&
989 !(rdev->flags & RADEON_IS_IGP))
990 rdev->disp_priority = 2;
991 else
992 rdev->disp_priority = 0;
993 } else
994 rdev->disp_priority = radeon_disp_priority;
995
996 }
997
998 int radeon_modeset_init(struct radeon_device *rdev)
999 {
1000 int i;
1001 int ret;
1002
1003 drm_mode_config_init(rdev->ddev);
1004 rdev->mode_info.mode_config_initialized = true;
1005
1006 rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs;
1007
1008 if (ASIC_IS_AVIVO(rdev)) {
1009 rdev->ddev->mode_config.max_width = 8192;
1010 rdev->ddev->mode_config.max_height = 8192;
1011 } else {
1012 rdev->ddev->mode_config.max_width = 4096;
1013 rdev->ddev->mode_config.max_height = 4096;
1014 }
1015
1016 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
1017
1018 ret = radeon_modeset_create_props(rdev);
1019 if (ret) {
1020 return ret;
1021 }
1022
1023 /* check combios for a valid hardcoded EDID - Sun servers */
1024 if (!rdev->is_atom_bios) {
1025 /* check for hardcoded EDID in BIOS */
1026 radeon_combios_check_hardcoded_edid(rdev);
1027 }
1028
1029 /* allocate crtcs */
1030 for (i = 0; i < rdev->num_crtc; i++) {
1031 radeon_crtc_init(rdev->ddev, i);
1032 }
1033
1034 /* okay we should have all the bios connectors */
1035 ret = radeon_setup_enc_conn(rdev->ddev);
1036 if (!ret) {
1037 return ret;
1038 }
1039 /* initialize hpd */
1040 radeon_hpd_init(rdev);
1041
1042 /* Initialize power management */
1043 radeon_pm_init(rdev);
1044
1045 radeon_fbdev_init(rdev);
1046 drm_kms_helper_poll_init(rdev->ddev);
1047
1048 return 0;
1049 }
1050
1051 void radeon_modeset_fini(struct radeon_device *rdev)
1052 {
1053 radeon_fbdev_fini(rdev);
1054 kfree(rdev->mode_info.bios_hardcoded_edid);
1055 radeon_pm_fini(rdev);
1056
1057 if (rdev->mode_info.mode_config_initialized) {
1058 drm_kms_helper_poll_fini(rdev->ddev);
1059 radeon_hpd_fini(rdev);
1060 drm_mode_config_cleanup(rdev->ddev);
1061 rdev->mode_info.mode_config_initialized = false;
1062 }
1063 }
1064
1065 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
1066 struct drm_display_mode *mode,
1067 struct drm_display_mode *adjusted_mode)
1068 {
1069 struct drm_device *dev = crtc->dev;
1070 struct drm_encoder *encoder;
1071 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1072 struct radeon_encoder *radeon_encoder;
1073 bool first = true;
1074
1075 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1076 radeon_encoder = to_radeon_encoder(encoder);
1077 if (encoder->crtc != crtc)
1078 continue;
1079 if (first) {
1080 /* set scaling */
1081 if (radeon_encoder->rmx_type == RMX_OFF)
1082 radeon_crtc->rmx_type = RMX_OFF;
1083 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
1084 mode->vdisplay < radeon_encoder->native_mode.vdisplay)
1085 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
1086 else
1087 radeon_crtc->rmx_type = RMX_OFF;
1088 /* copy native mode */
1089 memcpy(&radeon_crtc->native_mode,
1090 &radeon_encoder->native_mode,
1091 sizeof(struct drm_display_mode));
1092 first = false;
1093 } else {
1094 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
1095 /* WARNING: Right now this can't happen but
1096 * in the future we need to check that scaling
1097 * are consistent accross different encoder
1098 * (ie all encoder can work with the same
1099 * scaling).
1100 */
1101 DRM_ERROR("Scaling not consistent accross encoder.\n");
1102 return false;
1103 }
1104 }
1105 }
1106 if (radeon_crtc->rmx_type != RMX_OFF) {
1107 fixed20_12 a, b;
1108 a.full = dfixed_const(crtc->mode.vdisplay);
1109 b.full = dfixed_const(radeon_crtc->native_mode.hdisplay);
1110 radeon_crtc->vsc.full = dfixed_div(a, b);
1111 a.full = dfixed_const(crtc->mode.hdisplay);
1112 b.full = dfixed_const(radeon_crtc->native_mode.vdisplay);
1113 radeon_crtc->hsc.full = dfixed_div(a, b);
1114 } else {
1115 radeon_crtc->vsc.full = dfixed_const(1);
1116 radeon_crtc->hsc.full = dfixed_const(1);
1117 }
1118 return true;
1119 }
Linux kernel - Deliverables
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