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drm: Propagate error code from fb_create()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / gpu / drm / radeon / radeon_display.c
blob6130ec9ed502db0d049fee11296403049b3516aa
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 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_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 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 if (radeon_connector->router_bus)
323 DRM_INFO(" DDC Router 0x%x/0x%x\n",
324 radeon_connector->router.mux_control_pin,
325 radeon_connector->router.mux_state);
326 } else {
327 if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
328 connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
329 connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
330 connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
331 connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
332 connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
333 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
334 }
335 DRM_INFO(" Encoders:\n");
336 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
337 radeon_encoder = to_radeon_encoder(encoder);
338 devices = radeon_encoder->devices & radeon_connector->devices;
339 if (devices) {
340 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
341 DRM_INFO(" CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
342 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
343 DRM_INFO(" CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
344 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
345 DRM_INFO(" LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
346 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
347 DRM_INFO(" DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
348 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
349 DRM_INFO(" DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
350 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
351 DRM_INFO(" DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
352 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
353 DRM_INFO(" DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
354 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
355 DRM_INFO(" DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
356 if (devices & ATOM_DEVICE_TV1_SUPPORT)
357 DRM_INFO(" TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
358 if (devices & ATOM_DEVICE_CV_SUPPORT)
359 DRM_INFO(" CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
360 }
361 }
362 i++;
363 }
364 }
365
366 static bool radeon_setup_enc_conn(struct drm_device *dev)
367 {
368 struct radeon_device *rdev = dev->dev_private;
369 struct drm_connector *drm_connector;
370 bool ret = false;
371
372 if (rdev->bios) {
373 if (rdev->is_atom_bios) {
374 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
375 if (ret == false)
376 ret = radeon_get_atom_connector_info_from_object_table(dev);
377 } else {
378 ret = radeon_get_legacy_connector_info_from_bios(dev);
379 if (ret == false)
380 ret = radeon_get_legacy_connector_info_from_table(dev);
381 }
382 } else {
383 if (!ASIC_IS_AVIVO(rdev))
384 ret = radeon_get_legacy_connector_info_from_table(dev);
385 }
386 if (ret) {
387 radeon_setup_encoder_clones(dev);
388 radeon_print_display_setup(dev);
389 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head)
390 radeon_ddc_dump(drm_connector);
391 }
392
393 return ret;
394 }
395
396 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
397 {
398 struct drm_device *dev = radeon_connector->base.dev;
399 struct radeon_device *rdev = dev->dev_private;
400 int ret = 0;
401
402 /* on hw with routers, select right port */
403 if (radeon_connector->router.valid)
404 radeon_router_select_port(radeon_connector);
405
406 if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
407 (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
408 struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
409 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
410 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && dig->dp_i2c_bus)
411 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &dig->dp_i2c_bus->adapter);
412 }
413 if (!radeon_connector->ddc_bus)
414 return -1;
415 if (!radeon_connector->edid) {
416 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
417 }
418 /* some servers provide a hardcoded edid in rom for KVMs */
419 if (!radeon_connector->edid)
420 radeon_connector->edid = radeon_combios_get_hardcoded_edid(rdev);
421 if (radeon_connector->edid) {
422 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
423 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
424 return ret;
425 }
426 drm_mode_connector_update_edid_property(&radeon_connector->base, NULL);
427 return 0;
428 }
429
430 static int radeon_ddc_dump(struct drm_connector *connector)
431 {
432 struct edid *edid;
433 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
434 int ret = 0;
435
436 /* on hw with routers, select right port */
437 if (radeon_connector->router.valid)
438 radeon_router_select_port(radeon_connector);
439
440 if (!radeon_connector->ddc_bus)
441 return -1;
442 edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
443 if (edid) {
444 kfree(edid);
445 }
446 return ret;
447 }
448
449 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
450 {
451 uint64_t mod;
452
453 n += d / 2;
454
455 mod = do_div(n, d);
456 return n;
457 }
458
459 static void radeon_compute_pll_legacy(struct radeon_pll *pll,
460 uint64_t freq,
461 uint32_t *dot_clock_p,
462 uint32_t *fb_div_p,
463 uint32_t *frac_fb_div_p,
464 uint32_t *ref_div_p,
465 uint32_t *post_div_p)
466 {
467 uint32_t min_ref_div = pll->min_ref_div;
468 uint32_t max_ref_div = pll->max_ref_div;
469 uint32_t min_post_div = pll->min_post_div;
470 uint32_t max_post_div = pll->max_post_div;
471 uint32_t min_fractional_feed_div = 0;
472 uint32_t max_fractional_feed_div = 0;
473 uint32_t best_vco = pll->best_vco;
474 uint32_t best_post_div = 1;
475 uint32_t best_ref_div = 1;
476 uint32_t best_feedback_div = 1;
477 uint32_t best_frac_feedback_div = 0;
478 uint32_t best_freq = -1;
479 uint32_t best_error = 0xffffffff;
480 uint32_t best_vco_diff = 1;
481 uint32_t post_div;
482 u32 pll_out_min, pll_out_max;
483
484 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
485 freq = freq * 1000;
486
487 if (pll->flags & RADEON_PLL_IS_LCD) {
488 pll_out_min = pll->lcd_pll_out_min;
489 pll_out_max = pll->lcd_pll_out_max;
490 } else {
491 pll_out_min = pll->pll_out_min;
492 pll_out_max = pll->pll_out_max;
493 }
494
495 if (pll->flags & RADEON_PLL_USE_REF_DIV)
496 min_ref_div = max_ref_div = pll->reference_div;
497 else {
498 while (min_ref_div < max_ref_div-1) {
499 uint32_t mid = (min_ref_div + max_ref_div) / 2;
500 uint32_t pll_in = pll->reference_freq / mid;
501 if (pll_in < pll->pll_in_min)
502 max_ref_div = mid;
503 else if (pll_in > pll->pll_in_max)
504 min_ref_div = mid;
505 else
506 break;
507 }
508 }
509
510 if (pll->flags & RADEON_PLL_USE_POST_DIV)
511 min_post_div = max_post_div = pll->post_div;
512
513 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
514 min_fractional_feed_div = pll->min_frac_feedback_div;
515 max_fractional_feed_div = pll->max_frac_feedback_div;
516 }
517
518 for (post_div = min_post_div; post_div <= max_post_div; ++post_div) {
519 uint32_t ref_div;
520
521 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
522 continue;
523
524 /* legacy radeons only have a few post_divs */
525 if (pll->flags & RADEON_PLL_LEGACY) {
526 if ((post_div == 5) ||
527 (post_div == 7) ||
528 (post_div == 9) ||
529 (post_div == 10) ||
530 (post_div == 11) ||
531 (post_div == 13) ||
532 (post_div == 14) ||
533 (post_div == 15))
534 continue;
535 }
536
537 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
538 uint32_t feedback_div, current_freq = 0, error, vco_diff;
539 uint32_t pll_in = pll->reference_freq / ref_div;
540 uint32_t min_feed_div = pll->min_feedback_div;
541 uint32_t max_feed_div = pll->max_feedback_div + 1;
542
543 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
544 continue;
545
546 while (min_feed_div < max_feed_div) {
547 uint32_t vco;
548 uint32_t min_frac_feed_div = min_fractional_feed_div;
549 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
550 uint32_t frac_feedback_div;
551 uint64_t tmp;
552
553 feedback_div = (min_feed_div + max_feed_div) / 2;
554
555 tmp = (uint64_t)pll->reference_freq * feedback_div;
556 vco = radeon_div(tmp, ref_div);
557
558 if (vco < pll_out_min) {
559 min_feed_div = feedback_div + 1;
560 continue;
561 } else if (vco > pll_out_max) {
562 max_feed_div = feedback_div;
563 continue;
564 }
565
566 while (min_frac_feed_div < max_frac_feed_div) {
567 frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
568 tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
569 tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
570 current_freq = radeon_div(tmp, ref_div * post_div);
571
572 if (pll->flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
573 if (freq < current_freq)
574 error = 0xffffffff;
575 else
576 error = freq - current_freq;
577 } else
578 error = abs(current_freq - freq);
579 vco_diff = abs(vco - best_vco);
580
581 if ((best_vco == 0 && error < best_error) ||
582 (best_vco != 0 &&
583 ((best_error > 100 && error < best_error - 100) ||
584 (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
585 best_post_div = post_div;
586 best_ref_div = ref_div;
587 best_feedback_div = feedback_div;
588 best_frac_feedback_div = frac_feedback_div;
589 best_freq = current_freq;
590 best_error = error;
591 best_vco_diff = vco_diff;
592 } else if (current_freq == freq) {
593 if (best_freq == -1) {
594 best_post_div = post_div;
595 best_ref_div = ref_div;
596 best_feedback_div = feedback_div;
597 best_frac_feedback_div = frac_feedback_div;
598 best_freq = current_freq;
599 best_error = error;
600 best_vco_diff = vco_diff;
601 } else if (((pll->flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
602 ((pll->flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
603 ((pll->flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
604 ((pll->flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
605 ((pll->flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
606 ((pll->flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
607 best_post_div = post_div;
608 best_ref_div = ref_div;
609 best_feedback_div = feedback_div;
610 best_frac_feedback_div = frac_feedback_div;
611 best_freq = current_freq;
612 best_error = error;
613 best_vco_diff = vco_diff;
614 }
615 }
616 if (current_freq < freq)
617 min_frac_feed_div = frac_feedback_div + 1;
618 else
619 max_frac_feed_div = frac_feedback_div;
620 }
621 if (current_freq < freq)
622 min_feed_div = feedback_div + 1;
623 else
624 max_feed_div = feedback_div;
625 }
626 }
627 }
628
629 *dot_clock_p = best_freq / 10000;
630 *fb_div_p = best_feedback_div;
631 *frac_fb_div_p = best_frac_feedback_div;
632 *ref_div_p = best_ref_div;
633 *post_div_p = best_post_div;
634 }
635
636 static bool
637 calc_fb_div(struct radeon_pll *pll,
638 uint32_t freq,
639 uint32_t post_div,
640 uint32_t ref_div,
641 uint32_t *fb_div,
642 uint32_t *fb_div_frac)
643 {
644 fixed20_12 feedback_divider, a, b;
645 u32 vco_freq;
646
647 vco_freq = freq * post_div;
648 /* feedback_divider = vco_freq * ref_div / pll->reference_freq; */
649 a.full = dfixed_const(pll->reference_freq);
650 feedback_divider.full = dfixed_const(vco_freq);
651 feedback_divider.full = dfixed_div(feedback_divider, a);
652 a.full = dfixed_const(ref_div);
653 feedback_divider.full = dfixed_mul(feedback_divider, a);
654
655 if (pll->flags & RADEON_PLL_USE_FRAC_FB_DIV) {
656 /* feedback_divider = floor((feedback_divider * 10.0) + 0.5) * 0.1; */
657 a.full = dfixed_const(10);
658 feedback_divider.full = dfixed_mul(feedback_divider, a);
659 feedback_divider.full += dfixed_const_half(0);
660 feedback_divider.full = dfixed_floor(feedback_divider);
661 feedback_divider.full = dfixed_div(feedback_divider, a);
662
663 /* *fb_div = floor(feedback_divider); */
664 a.full = dfixed_floor(feedback_divider);
665 *fb_div = dfixed_trunc(a);
666 /* *fb_div_frac = fmod(feedback_divider, 1.0) * 10.0; */
667 a.full = dfixed_const(10);
668 b.full = dfixed_mul(feedback_divider, a);
669
670 feedback_divider.full = dfixed_floor(feedback_divider);
671 feedback_divider.full = dfixed_mul(feedback_divider, a);
672 feedback_divider.full = b.full - feedback_divider.full;
673 *fb_div_frac = dfixed_trunc(feedback_divider);
674 } else {
675 /* *fb_div = floor(feedback_divider + 0.5); */
676 feedback_divider.full += dfixed_const_half(0);
677 feedback_divider.full = dfixed_floor(feedback_divider);
678
679 *fb_div = dfixed_trunc(feedback_divider);
680 *fb_div_frac = 0;
681 }
682
683 if (((*fb_div) < pll->min_feedback_div) || ((*fb_div) > pll->max_feedback_div))
684 return false;
685 else
686 return true;
687 }
688
689 static bool
690 calc_fb_ref_div(struct radeon_pll *pll,
691 uint32_t freq,
692 uint32_t post_div,
693 uint32_t *fb_div,
694 uint32_t *fb_div_frac,
695 uint32_t *ref_div)
696 {
697 fixed20_12 ffreq, max_error, error, pll_out, a;
698 u32 vco;
699 u32 pll_out_min, pll_out_max;
700
701 if (pll->flags & RADEON_PLL_IS_LCD) {
702 pll_out_min = pll->lcd_pll_out_min;
703 pll_out_max = pll->lcd_pll_out_max;
704 } else {
705 pll_out_min = pll->pll_out_min;
706 pll_out_max = pll->pll_out_max;
707 }
708
709 ffreq.full = dfixed_const(freq);
710 /* max_error = ffreq * 0.0025; */
711 a.full = dfixed_const(400);
712 max_error.full = dfixed_div(ffreq, a);
713
714 for ((*ref_div) = pll->min_ref_div; (*ref_div) < pll->max_ref_div; ++(*ref_div)) {
715 if (calc_fb_div(pll, freq, post_div, (*ref_div), fb_div, fb_div_frac)) {
716 vco = pll->reference_freq * (((*fb_div) * 10) + (*fb_div_frac));
717 vco = vco / ((*ref_div) * 10);
718
719 if ((vco < pll_out_min) || (vco > pll_out_max))
720 continue;
721
722 /* pll_out = vco / post_div; */
723 a.full = dfixed_const(post_div);
724 pll_out.full = dfixed_const(vco);
725 pll_out.full = dfixed_div(pll_out, a);
726
727 if (pll_out.full >= ffreq.full) {
728 error.full = pll_out.full - ffreq.full;
729 if (error.full <= max_error.full)
730 return true;
731 }
732 }
733 }
734 return false;
735 }
736
737 static void radeon_compute_pll_new(struct radeon_pll *pll,
738 uint64_t freq,
739 uint32_t *dot_clock_p,
740 uint32_t *fb_div_p,
741 uint32_t *frac_fb_div_p,
742 uint32_t *ref_div_p,
743 uint32_t *post_div_p)
744 {
745 u32 fb_div = 0, fb_div_frac = 0, post_div = 0, ref_div = 0;
746 u32 best_freq = 0, vco_frequency;
747 u32 pll_out_min, pll_out_max;
748
749 if (pll->flags & RADEON_PLL_IS_LCD) {
750 pll_out_min = pll->lcd_pll_out_min;
751 pll_out_max = pll->lcd_pll_out_max;
752 } else {
753 pll_out_min = pll->pll_out_min;
754 pll_out_max = pll->pll_out_max;
755 }
756
757 /* freq = freq / 10; */
758 do_div(freq, 10);
759
760 if (pll->flags & RADEON_PLL_USE_POST_DIV) {
761 post_div = pll->post_div;
762 if ((post_div < pll->min_post_div) || (post_div > pll->max_post_div))
763 goto done;
764
765 vco_frequency = freq * post_div;
766 if ((vco_frequency < pll_out_min) || (vco_frequency > pll_out_max))
767 goto done;
768
769 if (pll->flags & RADEON_PLL_USE_REF_DIV) {
770 ref_div = pll->reference_div;
771 if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
772 goto done;
773 if (!calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
774 goto done;
775 }
776 } else {
777 for (post_div = pll->max_post_div; post_div >= pll->min_post_div; --post_div) {
778 if (pll->flags & RADEON_PLL_LEGACY) {
779 if ((post_div == 5) ||
780 (post_div == 7) ||
781 (post_div == 9) ||
782 (post_div == 10) ||
783 (post_div == 11))
784 continue;
785 }
786
787 if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
788 continue;
789
790 vco_frequency = freq * post_div;
791 if ((vco_frequency < pll_out_min) || (vco_frequency > pll_out_max))
792 continue;
793 if (pll->flags & RADEON_PLL_USE_REF_DIV) {
794 ref_div = pll->reference_div;
795 if ((ref_div < pll->min_ref_div) || (ref_div > pll->max_ref_div))
796 goto done;
797 if (calc_fb_div(pll, freq, post_div, ref_div, &fb_div, &fb_div_frac))
798 break;
799 } else {
800 if (calc_fb_ref_div(pll, freq, post_div, &fb_div, &fb_div_frac, &ref_div))
801 break;
802 }
803 }
804 }
805
806 best_freq = pll->reference_freq * 10 * fb_div;
807 best_freq += pll->reference_freq * fb_div_frac;
808 best_freq = best_freq / (ref_div * post_div);
809
810 done:
811 if (best_freq == 0)
812 DRM_ERROR("Couldn't find valid PLL dividers\n");
813
814 *dot_clock_p = best_freq / 10;
815 *fb_div_p = fb_div;
816 *frac_fb_div_p = fb_div_frac;
817 *ref_div_p = ref_div;
818 *post_div_p = post_div;
819
820 DRM_DEBUG_KMS("%u %d.%d, %d, %d\n", *dot_clock_p, *fb_div_p, *frac_fb_div_p, *ref_div_p, *post_div_p);
821 }
822
823 void radeon_compute_pll(struct radeon_pll *pll,
824 uint64_t freq,
825 uint32_t *dot_clock_p,
826 uint32_t *fb_div_p,
827 uint32_t *frac_fb_div_p,
828 uint32_t *ref_div_p,
829 uint32_t *post_div_p)
830 {
831 switch (pll->algo) {
832 case PLL_ALGO_NEW:
833 radeon_compute_pll_new(pll, freq, dot_clock_p, fb_div_p,
834 frac_fb_div_p, ref_div_p, post_div_p);
835 break;
836 case PLL_ALGO_LEGACY:
837 default:
838 radeon_compute_pll_legacy(pll, freq, dot_clock_p, fb_div_p,
839 frac_fb_div_p, ref_div_p, post_div_p);
840 break;
841 }
842 }
843
844 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
845 {
846 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
847
848 if (radeon_fb->obj)
849 drm_gem_object_unreference_unlocked(radeon_fb->obj);
850 drm_framebuffer_cleanup(fb);
851 kfree(radeon_fb);
852 }
853
854 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
855 struct drm_file *file_priv,
856 unsigned int *handle)
857 {
858 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
859
860 return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
861 }
862
863 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
864 .destroy = radeon_user_framebuffer_destroy,
865 .create_handle = radeon_user_framebuffer_create_handle,
866 };
867
868 void
869 radeon_framebuffer_init(struct drm_device *dev,
870 struct radeon_framebuffer *rfb,
871 struct drm_mode_fb_cmd *mode_cmd,
872 struct drm_gem_object *obj)
873 {
874 rfb->obj = obj;
875 drm_framebuffer_init(dev, &rfb->base, &radeon_fb_funcs);
876 drm_helper_mode_fill_fb_struct(&rfb->base, mode_cmd);
877 }
878
879 static struct drm_framebuffer *
880 radeon_user_framebuffer_create(struct drm_device *dev,
881 struct drm_file *file_priv,
882 struct drm_mode_fb_cmd *mode_cmd)
883 {
884 struct drm_gem_object *obj;
885 struct radeon_framebuffer *radeon_fb;
886
887 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
888 if (obj == NULL) {
889 dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
890 "can't create framebuffer\n", mode_cmd->handle);
891 return ERR_PTR(-ENOENT);
892 }
893
894 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
895 if (radeon_fb == NULL)
896 return ERR_PTR(-ENOMEM);
897
898 radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj);
899
900 return &radeon_fb->base;
901 }
902
903 static void radeon_output_poll_changed(struct drm_device *dev)
904 {
905 struct radeon_device *rdev = dev->dev_private;
906 radeon_fb_output_poll_changed(rdev);
907 }
908
909 static const struct drm_mode_config_funcs radeon_mode_funcs = {
910 .fb_create = radeon_user_framebuffer_create,
911 .output_poll_changed = radeon_output_poll_changed
912 };
913
914 struct drm_prop_enum_list {
915 int type;
916 char *name;
917 };
918
919 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
920 { { 0, "driver" },
921 { 1, "bios" },
922 };
923
924 static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
925 { { TV_STD_NTSC, "ntsc" },
926 { TV_STD_PAL, "pal" },
927 { TV_STD_PAL_M, "pal-m" },
928 { TV_STD_PAL_60, "pal-60" },
929 { TV_STD_NTSC_J, "ntsc-j" },
930 { TV_STD_SCART_PAL, "scart-pal" },
931 { TV_STD_PAL_CN, "pal-cn" },
932 { TV_STD_SECAM, "secam" },
933 };
934
935 static struct drm_prop_enum_list radeon_underscan_enum_list[] =
936 { { UNDERSCAN_OFF, "off" },
937 { UNDERSCAN_ON, "on" },
938 { UNDERSCAN_AUTO, "auto" },
939 };
940
941 static int radeon_modeset_create_props(struct radeon_device *rdev)
942 {
943 int i, sz;
944
945 if (rdev->is_atom_bios) {
946 rdev->mode_info.coherent_mode_property =
947 drm_property_create(rdev->ddev,
948 DRM_MODE_PROP_RANGE,
949 "coherent", 2);
950 if (!rdev->mode_info.coherent_mode_property)
951 return -ENOMEM;
952
953 rdev->mode_info.coherent_mode_property->values[0] = 0;
954 rdev->mode_info.coherent_mode_property->values[1] = 1;
955 }
956
957 if (!ASIC_IS_AVIVO(rdev)) {
958 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
959 rdev->mode_info.tmds_pll_property =
960 drm_property_create(rdev->ddev,
961 DRM_MODE_PROP_ENUM,
962 "tmds_pll", sz);
963 for (i = 0; i < sz; i++) {
964 drm_property_add_enum(rdev->mode_info.tmds_pll_property,
965 i,
966 radeon_tmds_pll_enum_list[i].type,
967 radeon_tmds_pll_enum_list[i].name);
968 }
969 }
970
971 rdev->mode_info.load_detect_property =
972 drm_property_create(rdev->ddev,
973 DRM_MODE_PROP_RANGE,
974 "load detection", 2);
975 if (!rdev->mode_info.load_detect_property)
976 return -ENOMEM;
977 rdev->mode_info.load_detect_property->values[0] = 0;
978 rdev->mode_info.load_detect_property->values[1] = 1;
979
980 drm_mode_create_scaling_mode_property(rdev->ddev);
981
982 sz = ARRAY_SIZE(radeon_tv_std_enum_list);
983 rdev->mode_info.tv_std_property =
984 drm_property_create(rdev->ddev,
985 DRM_MODE_PROP_ENUM,
986 "tv standard", sz);
987 for (i = 0; i < sz; i++) {
988 drm_property_add_enum(rdev->mode_info.tv_std_property,
989 i,
990 radeon_tv_std_enum_list[i].type,
991 radeon_tv_std_enum_list[i].name);
992 }
993
994 sz = ARRAY_SIZE(radeon_underscan_enum_list);
995 rdev->mode_info.underscan_property =
996 drm_property_create(rdev->ddev,
997 DRM_MODE_PROP_ENUM,
998 "underscan", sz);
999 for (i = 0; i < sz; i++) {
1000 drm_property_add_enum(rdev->mode_info.underscan_property,
1001 i,
1002 radeon_underscan_enum_list[i].type,
1003 radeon_underscan_enum_list[i].name);
1004 }
1005
1006 return 0;
1007 }
1008
1009 void radeon_update_display_priority(struct radeon_device *rdev)
1010 {
1011 /* adjustment options for the display watermarks */
1012 if ((radeon_disp_priority == 0) || (radeon_disp_priority > 2)) {
1013 /* set display priority to high for r3xx, rv515 chips
1014 * this avoids flickering due to underflow to the
1015 * display controllers during heavy acceleration.
1016 * Don't force high on rs4xx igp chips as it seems to
1017 * affect the sound card. See kernel bug 15982.
1018 */
1019 if ((ASIC_IS_R300(rdev) || (rdev->family == CHIP_RV515)) &&
1020 !(rdev->flags & RADEON_IS_IGP))
1021 rdev->disp_priority = 2;
1022 else
1023 rdev->disp_priority = 0;
1024 } else
1025 rdev->disp_priority = radeon_disp_priority;
1026
1027 }
1028
1029 int radeon_modeset_init(struct radeon_device *rdev)
1030 {
1031 int i;
1032 int ret;
1033
1034 drm_mode_config_init(rdev->ddev);
1035 rdev->mode_info.mode_config_initialized = true;
1036
1037 rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs;
1038
1039 if (ASIC_IS_AVIVO(rdev)) {
1040 rdev->ddev->mode_config.max_width = 8192;
1041 rdev->ddev->mode_config.max_height = 8192;
1042 } else {
1043 rdev->ddev->mode_config.max_width = 4096;
1044 rdev->ddev->mode_config.max_height = 4096;
1045 }
1046
1047 rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
1048
1049 ret = radeon_modeset_create_props(rdev);
1050 if (ret) {
1051 return ret;
1052 }
1053
1054 /* init i2c buses */
1055 radeon_i2c_init(rdev);
1056
1057 /* check combios for a valid hardcoded EDID - Sun servers */
1058 if (!rdev->is_atom_bios) {
1059 /* check for hardcoded EDID in BIOS */
1060 radeon_combios_check_hardcoded_edid(rdev);
1061 }
1062
1063 /* allocate crtcs */
1064 for (i = 0; i < rdev->num_crtc; i++) {
1065 radeon_crtc_init(rdev->ddev, i);
1066 }
1067
1068 /* okay we should have all the bios connectors */
1069 ret = radeon_setup_enc_conn(rdev->ddev);
1070 if (!ret) {
1071 return ret;
1072 }
1073 /* initialize hpd */
1074 radeon_hpd_init(rdev);
1075
1076 /* Initialize power management */
1077 radeon_pm_init(rdev);
1078
1079 radeon_fbdev_init(rdev);
1080 drm_kms_helper_poll_init(rdev->ddev);
1081
1082 return 0;
1083 }
1084
1085 void radeon_modeset_fini(struct radeon_device *rdev)
1086 {
1087 radeon_fbdev_fini(rdev);
1088 kfree(rdev->mode_info.bios_hardcoded_edid);
1089 radeon_pm_fini(rdev);
1090
1091 if (rdev->mode_info.mode_config_initialized) {
1092 drm_kms_helper_poll_fini(rdev->ddev);
1093 radeon_hpd_fini(rdev);
1094 drm_mode_config_cleanup(rdev->ddev);
1095 rdev->mode_info.mode_config_initialized = false;
1096 }
1097 /* free i2c buses */
1098 radeon_i2c_fini(rdev);
1099 }
1100
1101 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
1102 struct drm_display_mode *mode,
1103 struct drm_display_mode *adjusted_mode)
1104 {
1105 struct drm_device *dev = crtc->dev;
1106 struct radeon_device *rdev = dev->dev_private;
1107 struct drm_encoder *encoder;
1108 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1109 struct radeon_encoder *radeon_encoder;
1110 struct drm_connector *connector;
1111 struct radeon_connector *radeon_connector;
1112 bool first = true;
1113 u32 src_v = 1, dst_v = 1;
1114 u32 src_h = 1, dst_h = 1;
1115
1116 radeon_crtc->h_border = 0;
1117 radeon_crtc->v_border = 0;
1118
1119 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1120 if (encoder->crtc != crtc)
1121 continue;
1122 radeon_encoder = to_radeon_encoder(encoder);
1123 connector = radeon_get_connector_for_encoder(encoder);
1124 radeon_connector = to_radeon_connector(connector);
1125
1126 if (first) {
1127 /* set scaling */
1128 if (radeon_encoder->rmx_type == RMX_OFF)
1129 radeon_crtc->rmx_type = RMX_OFF;
1130 else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
1131 mode->vdisplay < radeon_encoder->native_mode.vdisplay)
1132 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
1133 else
1134 radeon_crtc->rmx_type = RMX_OFF;
1135 src_v = crtc->mode.vdisplay;
1136 dst_v = radeon_crtc->native_mode.vdisplay;
1137 src_h = crtc->mode.hdisplay;
1138 dst_h = radeon_crtc->native_mode.vdisplay;
1139 /* copy native mode */
1140 memcpy(&radeon_crtc->native_mode,
1141 &radeon_encoder->native_mode,
1142 sizeof(struct drm_display_mode));
1143
1144 /* fix up for overscan on hdmi */
1145 if (ASIC_IS_AVIVO(rdev) &&
1146 ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
1147 ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
1148 drm_detect_hdmi_monitor(radeon_connector->edid)))) {
1149 radeon_crtc->h_border = (mode->hdisplay >> 5) + 16;
1150 radeon_crtc->v_border = (mode->vdisplay >> 5) + 16;
1151 radeon_crtc->rmx_type = RMX_FULL;
1152 src_v = crtc->mode.vdisplay;
1153 dst_v = crtc->mode.vdisplay - (radeon_crtc->v_border * 2);
1154 src_h = crtc->mode.hdisplay;
1155 dst_h = crtc->mode.hdisplay - (radeon_crtc->h_border * 2);
1156 }
1157 first = false;
1158 } else {
1159 if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
1160 /* WARNING: Right now this can't happen but
1161 * in the future we need to check that scaling
1162 * are consistent across different encoder
1163 * (ie all encoder can work with the same
1164 * scaling).
1165 */
1166 DRM_ERROR("Scaling not consistent across encoder.\n");
1167 return false;
1168 }
1169 }
1170 }
1171 if (radeon_crtc->rmx_type != RMX_OFF) {
1172 fixed20_12 a, b;
1173 a.full = dfixed_const(src_v);
1174 b.full = dfixed_const(dst_v);
1175 radeon_crtc->vsc.full = dfixed_div(a, b);
1176 a.full = dfixed_const(src_h);
1177 b.full = dfixed_const(dst_h);
1178 radeon_crtc->hsc.full = dfixed_div(a, b);
1179 } else {
1180 radeon_crtc->vsc.full = dfixed_const(1);
1181 radeon_crtc->hsc.full = dfixed_const(1);
1182 }
1183 return true;
1184 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree