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 legacy_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         uint32_t dac2_cntl;
  78
  79         dac2_cntl = RREG32(RADEON_DAC_CNTL2);
  80         if (radeon_crtc->crtc_id == 0)
  81                 dac2_cntl &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
  82         else
  83                 dac2_cntl |= RADEON_DAC2_PALETTE_ACC_CTL;
  84         WREG32(RADEON_DAC_CNTL2, dac2_cntl);
  85
  86         WREG8(RADEON_PALETTE_INDEX, 0);
  87         for (i = 0; i < 256; i++) {
  88                 WREG32(RADEON_PALETTE_30_DATA,
  89                              (radeon_crtc->lut_r[i] << 20) |
  90                              (radeon_crtc->lut_g[i] << 10) |
  91                              (radeon_crtc->lut_b[i] << 0));
  92         }
  93 }
  94
  95 void radeon_crtc_load_lut(struct drm_crtc *crtc)
  96 {
  97         struct drm_device *dev = crtc->dev;
  98         struct radeon_device *rdev = dev->dev_private;
  99
 100         if (!crtc->enabled)
 101                 return;
 102
 103         if (ASIC_IS_AVIVO(rdev))
 104                 avivo_crtc_load_lut(crtc);
 105         else
 106                 legacy_crtc_load_lut(crtc);
 107 }
 108
 109 /** Sets the color ramps on behalf of fbcon */
 110 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 111                               u16 blue, int regno)
 112 {
 113         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 114
 115         radeon_crtc->lut_r[regno] = red >> 6;
 116         radeon_crtc->lut_g[regno] = green >> 6;
 117         radeon_crtc->lut_b[regno] = blue >> 6;
 118 }
 119
 120 /** Gets the color ramps on behalf of fbcon */
 121 void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 122                               u16 *blue, int regno)
 123 {
 124         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 125
 126         *red = radeon_crtc->lut_r[regno] << 6;
 127         *green = radeon_crtc->lut_g[regno] << 6;
 128         *blue = radeon_crtc->lut_b[regno] << 6;
 129 }
 130
 131 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
 132                                   u16 *blue, uint32_t size)
 133 {
 134         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 135         int i;
 136
 137         if (size != 256) {
 138                 return;
 139         }
 140
 141         /* userspace palettes are always correct as is */
 142         for (i = 0; i < 256; i++) {
 143                 radeon_crtc->lut_r[i] = red[i] >> 6;
 144                 radeon_crtc->lut_g[i] = green[i] >> 6;
 145                 radeon_crtc->lut_b[i] = blue[i] >> 6;
 146         }
 147         radeon_crtc_load_lut(crtc);
 148 }
 149
 150 static void radeon_crtc_destroy(struct drm_crtc *crtc)
 151 {
 152         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 153
 154         drm_crtc_cleanup(crtc);
 155         kfree(radeon_crtc);
 156 }
 157
 158 static const struct drm_crtc_funcs radeon_crtc_funcs = {
 159         .cursor_set = radeon_crtc_cursor_set,
 160         .cursor_move = radeon_crtc_cursor_move,
 161         .gamma_set = radeon_crtc_gamma_set,
 162         .set_config = drm_crtc_helper_set_config,
 163         .destroy = radeon_crtc_destroy,
 164 };
 165
 166 static void radeon_crtc_init(struct drm_device *dev, int index)
 167 {
 168         struct radeon_device *rdev = dev->dev_private;
 169         struct radeon_crtc *radeon_crtc;
 170         int i;
 171
 172         radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
 173         if (radeon_crtc == NULL)
 174                 return;
 175
 176         drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
 177
 178         drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
 179         radeon_crtc->crtc_id = index;
 180         rdev->mode_info.crtcs[index] = radeon_crtc;
 181
 182 #if 0
 183         radeon_crtc->mode_set.crtc = &radeon_crtc->base;
 184         radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
 185         radeon_crtc->mode_set.num_connectors = 0;
 186 #endif
 187
 188         for (i = 0; i < 256; i++) {
 189                 radeon_crtc->lut_r[i] = i << 2;
 190                 radeon_crtc->lut_g[i] = i << 2;
 191                 radeon_crtc->lut_b[i] = i << 2;
 192         }
 193
 194         if (rdev->is_atom_bios && (ASIC_IS_AVIVO(rdev) || radeon_r4xx_atom))
 195                 radeon_atombios_init_crtc(dev, radeon_crtc);
 196         else
 197                 radeon_legacy_init_crtc(dev, radeon_crtc);
 198 }
 199
 200 static const char *encoder_names[34] = {
 201         "NONE",
 202         "INTERNAL_LVDS",
 203         "INTERNAL_TMDS1",
 204         "INTERNAL_TMDS2",
 205         "INTERNAL_DAC1",
 206         "INTERNAL_DAC2",
 207         "INTERNAL_SDVOA",
 208         "INTERNAL_SDVOB",
 209         "SI170B",
 210         "CH7303",
 211         "CH7301",
 212         "INTERNAL_DVO1",
 213         "EXTERNAL_SDVOA",
 214         "EXTERNAL_SDVOB",
 215         "TITFP513",
 216         "INTERNAL_LVTM1",
 217         "VT1623",
 218         "HDMI_SI1930",
 219         "HDMI_INTERNAL",
 220         "INTERNAL_KLDSCP_TMDS1",
 221         "INTERNAL_KLDSCP_DVO1",
 222         "INTERNAL_KLDSCP_DAC1",
 223         "INTERNAL_KLDSCP_DAC2",
 224         "SI178",
 225         "MVPU_FPGA",
 226         "INTERNAL_DDI",
 227         "VT1625",
 228         "HDMI_SI1932",
 229         "DP_AN9801",
 230         "DP_DP501",
 231         "INTERNAL_UNIPHY",
 232         "INTERNAL_KLDSCP_LVTMA",
 233         "INTERNAL_UNIPHY1",
 234         "INTERNAL_UNIPHY2",
 235 };
 236
 237 static const char *connector_names[13] = {
 238         "Unknown",
 239         "VGA",
 240         "DVI-I",
 241         "DVI-D",
 242         "DVI-A",
 243         "Composite",
 244         "S-video",
 245         "LVDS",
 246         "Component",
 247         "DIN",
 248         "DisplayPort",
 249         "HDMI-A",
 250         "HDMI-B",
 251 };
 252
 253 static void radeon_print_display_setup(struct drm_device *dev)
 254 {
 255         struct drm_connector *connector;
 256         struct radeon_connector *radeon_connector;
 257         struct drm_encoder *encoder;
 258         struct radeon_encoder *radeon_encoder;
 259         uint32_t devices;
 260         int i = 0;
 261
 262         DRM_INFO("Radeon Display Connectors\n");
 263         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 264                 radeon_connector = to_radeon_connector(connector);
 265                 DRM_INFO("Connector %d:\n", i);
 266                 DRM_INFO("  %s\n", connector_names[connector->connector_type]);
 267                 if (radeon_connector->ddc_bus)
 268                         DRM_INFO("  DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
 269                                  radeon_connector->ddc_bus->rec.mask_clk_reg,
 270                                  radeon_connector->ddc_bus->rec.mask_data_reg,
 271                                  radeon_connector->ddc_bus->rec.a_clk_reg,
 272                                  radeon_connector->ddc_bus->rec.a_data_reg,
 273                                  radeon_connector->ddc_bus->rec.en_clk_reg,
 274                                  radeon_connector->ddc_bus->rec.en_data_reg,
 275                                  radeon_connector->ddc_bus->rec.y_clk_reg,
 276                                  radeon_connector->ddc_bus->rec.y_data_reg);
 277                 DRM_INFO("  Encoders:\n");
 278                 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 279                         radeon_encoder = to_radeon_encoder(encoder);
 280                         devices = radeon_encoder->devices & radeon_connector->devices;
 281                         if (devices) {
 282                                 if (devices & ATOM_DEVICE_CRT1_SUPPORT)
 283                                         DRM_INFO("    CRT1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 284                                 if (devices & ATOM_DEVICE_CRT2_SUPPORT)
 285                                         DRM_INFO("    CRT2: %s\n", encoder_names[radeon_encoder->encoder_id]);
 286                                 if (devices & ATOM_DEVICE_LCD1_SUPPORT)
 287                                         DRM_INFO("    LCD1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 288                                 if (devices & ATOM_DEVICE_DFP1_SUPPORT)
 289                                         DRM_INFO("    DFP1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 290                                 if (devices & ATOM_DEVICE_DFP2_SUPPORT)
 291                                         DRM_INFO("    DFP2: %s\n", encoder_names[radeon_encoder->encoder_id]);
 292                                 if (devices & ATOM_DEVICE_DFP3_SUPPORT)
 293                                         DRM_INFO("    DFP3: %s\n", encoder_names[radeon_encoder->encoder_id]);
 294                                 if (devices & ATOM_DEVICE_DFP4_SUPPORT)
 295                                         DRM_INFO("    DFP4: %s\n", encoder_names[radeon_encoder->encoder_id]);
 296                                 if (devices & ATOM_DEVICE_DFP5_SUPPORT)
 297                                         DRM_INFO("    DFP5: %s\n", encoder_names[radeon_encoder->encoder_id]);
 298                                 if (devices & ATOM_DEVICE_TV1_SUPPORT)
 299                                         DRM_INFO("    TV1: %s\n", encoder_names[radeon_encoder->encoder_id]);
 300                                 if (devices & ATOM_DEVICE_CV_SUPPORT)
 301                                         DRM_INFO("    CV: %s\n", encoder_names[radeon_encoder->encoder_id]);
 302                         }
 303                 }
 304                 i++;
 305         }
 306 }
 307
 308 static bool radeon_setup_enc_conn(struct drm_device *dev)
 309 {
 310         struct radeon_device *rdev = dev->dev_private;
 311         struct drm_connector *drm_connector;
 312         bool ret = false;
 313
 314         if (rdev->bios) {
 315                 if (rdev->is_atom_bios) {
 316                         if (rdev->family >= CHIP_R600)
 317                                 ret = radeon_get_atom_connector_info_from_object_table(dev);
 318                         else
 319                                 ret = radeon_get_atom_connector_info_from_supported_devices_table(dev);
 320                 } else
 321                         ret = radeon_get_legacy_connector_info_from_bios(dev);
 322         } else {
 323                 if (!ASIC_IS_AVIVO(rdev))
 324                         ret = radeon_get_legacy_connector_info_from_table(dev);
 325         }
 326         if (ret) {
 327                 radeon_setup_encoder_clones(dev);
 328                 radeon_print_display_setup(dev);
 329                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head)
 330                         radeon_ddc_dump(drm_connector);
 331         }
 332
 333         return ret;
 334 }
 335
 336 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
 337 {
 338         int ret = 0;
 339
 340         if (!radeon_connector->ddc_bus)
 341                 return -1;
 342         if (!radeon_connector->edid) {
 343                 radeon_i2c_do_lock(radeon_connector->ddc_bus, 1);
 344                 radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
 345                 radeon_i2c_do_lock(radeon_connector->ddc_bus, 0);
 346         }
 347
 348         if (radeon_connector->edid) {
 349                 drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
 350                 ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
 351                 return ret;
 352         }
 353         drm_mode_connector_update_edid_property(&radeon_connector->base, NULL);
 354         return 0;
 355 }
 356
 357 static int radeon_ddc_dump(struct drm_connector *connector)
 358 {
 359         struct edid *edid;
 360         struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 361         int ret = 0;
 362
 363         if (!radeon_connector->ddc_bus)
 364                 return -1;
 365         radeon_i2c_do_lock(radeon_connector->ddc_bus, 1);
 366         edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
 367         radeon_i2c_do_lock(radeon_connector->ddc_bus, 0);
 368         if (edid) {
 369                 kfree(edid);
 370         }
 371         return ret;
 372 }
 373
 374 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
 375 {
 376         uint64_t mod;
 377
 378         n += d / 2;
 379
 380         mod = do_div(n, d);
 381         return n;
 382 }
 383
 384 void radeon_compute_pll(struct radeon_pll *pll,
 385                         uint64_t freq,
 386                         uint32_t *dot_clock_p,
 387                         uint32_t *fb_div_p,
 388                         uint32_t *frac_fb_div_p,
 389                         uint32_t *ref_div_p,
 390                         uint32_t *post_div_p,
 391                         int flags)
 392 {
 393         uint32_t min_ref_div = pll->min_ref_div;
 394         uint32_t max_ref_div = pll->max_ref_div;
 395         uint32_t min_fractional_feed_div = 0;
 396         uint32_t max_fractional_feed_div = 0;
 397         uint32_t best_vco = pll->best_vco;
 398         uint32_t best_post_div = 1;
 399         uint32_t best_ref_div = 1;
 400         uint32_t best_feedback_div = 1;
 401         uint32_t best_frac_feedback_div = 0;
 402         uint32_t best_freq = -1;
 403         uint32_t best_error = 0xffffffff;
 404         uint32_t best_vco_diff = 1;
 405         uint32_t post_div;
 406
 407         DRM_DEBUG("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div);
 408         freq = freq * 1000;
 409
 410         if (flags & RADEON_PLL_USE_REF_DIV)
 411                 min_ref_div = max_ref_div = pll->reference_div;
 412         else {
 413                 while (min_ref_div < max_ref_div-1) {
 414                         uint32_t mid = (min_ref_div + max_ref_div) / 2;
 415                         uint32_t pll_in = pll->reference_freq / mid;
 416                         if (pll_in < pll->pll_in_min)
 417                                 max_ref_div = mid;
 418                         else if (pll_in > pll->pll_in_max)
 419                                 min_ref_div = mid;
 420                         else
 421                                 break;
 422                 }
 423         }
 424
 425         if (flags & RADEON_PLL_USE_FRAC_FB_DIV) {
 426                 min_fractional_feed_div = pll->min_frac_feedback_div;
 427                 max_fractional_feed_div = pll->max_frac_feedback_div;
 428         }
 429
 430         for (post_div = pll->min_post_div; post_div <= pll->max_post_div; ++post_div) {
 431                 uint32_t ref_div;
 432
 433                 if ((flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
 434                         continue;
 435
 436                 /* legacy radeons only have a few post_divs */
 437                 if (flags & RADEON_PLL_LEGACY) {
 438                         if ((post_div == 5) ||
 439                             (post_div == 7) ||
 440                             (post_div == 9) ||
 441                             (post_div == 10) ||
 442                             (post_div == 11) ||
 443                             (post_div == 13) ||
 444                             (post_div == 14) ||
 445                             (post_div == 15))
 446                                 continue;
 447                 }
 448
 449                 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
 450                         uint32_t feedback_div, current_freq = 0, error, vco_diff;
 451                         uint32_t pll_in = pll->reference_freq / ref_div;
 452                         uint32_t min_feed_div = pll->min_feedback_div;
 453                         uint32_t max_feed_div = pll->max_feedback_div + 1;
 454
 455                         if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
 456                                 continue;
 457
 458                         while (min_feed_div < max_feed_div) {
 459                                 uint32_t vco;
 460                                 uint32_t min_frac_feed_div = min_fractional_feed_div;
 461                                 uint32_t max_frac_feed_div = max_fractional_feed_div + 1;
 462                                 uint32_t frac_feedback_div;
 463                                 uint64_t tmp;
 464
 465                                 feedback_div = (min_feed_div + max_feed_div) / 2;
 466
 467                                 tmp = (uint64_t)pll->reference_freq * feedback_div;
 468                                 vco = radeon_div(tmp, ref_div);
 469
 470                                 if (vco < pll->pll_out_min) {
 471                                         min_feed_div = feedback_div + 1;
 472                                         continue;
 473                                 } else if (vco > pll->pll_out_max) {
 474                                         max_feed_div = feedback_div;
 475                                         continue;
 476                                 }
 477
 478                                 while (min_frac_feed_div < max_frac_feed_div) {
 479                                         frac_feedback_div = (min_frac_feed_div + max_frac_feed_div) / 2;
 480                                         tmp = (uint64_t)pll->reference_freq * 10000 * feedback_div;
 481                                         tmp += (uint64_t)pll->reference_freq * 1000 * frac_feedback_div;
 482                                         current_freq = radeon_div(tmp, ref_div * post_div);
 483
 484                                         if (flags & RADEON_PLL_PREFER_CLOSEST_LOWER) {
 485                                                 error = freq - current_freq;
 486                                                 error = error < 0 ? 0xffffffff : error;
 487                                         } else
 488                                                 error = abs(current_freq - freq);
 489                                         vco_diff = abs(vco - best_vco);
 490
 491                                         if ((best_vco == 0 && error < best_error) ||
 492                                             (best_vco != 0 &&
 493                                              (error < best_error - 100 ||
 494                                               (abs(error - best_error) < 100 && vco_diff < best_vco_diff)))) {
 495                                                 best_post_div = post_div;
 496                                                 best_ref_div = ref_div;
 497                                                 best_feedback_div = feedback_div;
 498                                                 best_frac_feedback_div = frac_feedback_div;
 499                                                 best_freq = current_freq;
 500                                                 best_error = error;
 501                                                 best_vco_diff = vco_diff;
 502                                         } else if (current_freq == freq) {
 503                                                 if (best_freq == -1) {
 504                                                         best_post_div = post_div;
 505                                                         best_ref_div = ref_div;
 506                                                         best_feedback_div = feedback_div;
 507                                                         best_frac_feedback_div = frac_feedback_div;
 508                                                         best_freq = current_freq;
 509                                                         best_error = error;
 510                                                         best_vco_diff = vco_diff;
 511                                                 } else if (((flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) ||
 512                                                            ((flags & RADEON_PLL_PREFER_HIGH_REF_DIV) && (ref_div > best_ref_div)) ||
 513                                                            ((flags & RADEON_PLL_PREFER_LOW_FB_DIV) && (feedback_div < best_feedback_div)) ||
 514                                                            ((flags & RADEON_PLL_PREFER_HIGH_FB_DIV) && (feedback_div > best_feedback_div)) ||
 515                                                            ((flags & RADEON_PLL_PREFER_LOW_POST_DIV) && (post_div < best_post_div)) ||
 516                                                            ((flags & RADEON_PLL_PREFER_HIGH_POST_DIV) && (post_div > best_post_div))) {
 517                                                         best_post_div = post_div;
 518                                                         best_ref_div = ref_div;
 519                                                         best_feedback_div = feedback_div;
 520                                                         best_frac_feedback_div = frac_feedback_div;
 521                                                         best_freq = current_freq;
 522                                                         best_error = error;
 523                                                         best_vco_diff = vco_diff;
 524                                                 }
 525                                         }
 526                                         if (current_freq < freq)
 527                                                 min_frac_feed_div = frac_feedback_div + 1;
 528                                         else
 529                                                 max_frac_feed_div = frac_feedback_div;
 530                                 }
 531                                 if (current_freq < freq)
 532                                         min_feed_div = feedback_div + 1;
 533                                 else
 534                                         max_feed_div = feedback_div;
 535                         }
 536                 }
 537         }
 538
 539         *dot_clock_p = best_freq / 10000;
 540         *fb_div_p = best_feedback_div;
 541         *frac_fb_div_p = best_frac_feedback_div;
 542         *ref_div_p = best_ref_div;
 543         *post_div_p = best_post_div;
 544 }
 545
 546 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
 547 {
 548         struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
 549         struct drm_device *dev = fb->dev;
 550
 551         if (fb->fbdev)
 552                 radeonfb_remove(dev, fb);
 553
 554         if (radeon_fb->obj) {
 555                 radeon_gem_object_unpin(radeon_fb->obj);
 556                 mutex_lock(&dev->struct_mutex);
 557                 drm_gem_object_unreference(radeon_fb->obj);
 558                 mutex_unlock(&dev->struct_mutex);
 559         }
 560         drm_framebuffer_cleanup(fb);
 561         kfree(radeon_fb);
 562 }
 563
 564 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer *fb,
 565                                                   struct drm_file *file_priv,
 566                                                   unsigned int *handle)
 567 {
 568         struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
 569
 570         return drm_gem_handle_create(file_priv, radeon_fb->obj, handle);
 571 }
 572
 573 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
 574         .destroy = radeon_user_framebuffer_destroy,
 575         .create_handle = radeon_user_framebuffer_create_handle,
 576 };
 577
 578 struct drm_framebuffer *
 579 radeon_framebuffer_create(struct drm_device *dev,
 580                           struct drm_mode_fb_cmd *mode_cmd,
 581                           struct drm_gem_object *obj)
 582 {
 583         struct radeon_framebuffer *radeon_fb;
 584
 585         radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
 586         if (radeon_fb == NULL) {
 587                 return NULL;
 588         }
 589         drm_framebuffer_init(dev, &radeon_fb->base, &radeon_fb_funcs);
 590         drm_helper_mode_fill_fb_struct(&radeon_fb->base, mode_cmd);
 591         radeon_fb->obj = obj;
 592         return &radeon_fb->base;
 593 }
 594
 595 static struct drm_framebuffer *
 596 radeon_user_framebuffer_create(struct drm_device *dev,
 597                                struct drm_file *file_priv,
 598                                struct drm_mode_fb_cmd *mode_cmd)
 599 {
 600         struct drm_gem_object *obj;
 601
 602         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
 603
 604         return radeon_framebuffer_create(dev, mode_cmd, obj);
 605 }
 606
 607 static const struct drm_mode_config_funcs radeon_mode_funcs = {
 608         .fb_create = radeon_user_framebuffer_create,
 609         .fb_changed = radeonfb_probe,
 610 };
 611
 612 struct drm_prop_enum_list {
 613         int type;
 614         char *name;
 615 };
 616
 617 static struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =
 618 {       { 0, "driver" },
 619         { 1, "bios" },
 620 };
 621
 622 static struct drm_prop_enum_list radeon_tv_std_enum_list[] =
 623 {       { TV_STD_NTSC, "ntsc" },
 624         { TV_STD_PAL, "pal" },
 625         { TV_STD_PAL_M, "pal-m" },
 626         { TV_STD_PAL_60, "pal-60" },
 627         { TV_STD_NTSC_J, "ntsc-j" },
 628         { TV_STD_SCART_PAL, "scart-pal" },
 629         { TV_STD_PAL_CN, "pal-cn" },
 630         { TV_STD_SECAM, "secam" },
 631 };
 632
 633 int radeon_modeset_create_props(struct radeon_device *rdev)
 634 {
 635         int i, sz;
 636
 637         if (rdev->is_atom_bios) {
 638                 rdev->mode_info.coherent_mode_property =
 639                         drm_property_create(rdev->ddev,
 640                                             DRM_MODE_PROP_RANGE,
 641                                             "coherent", 2);
 642                 if (!rdev->mode_info.coherent_mode_property)
 643                         return -ENOMEM;
 644
 645                 rdev->mode_info.coherent_mode_property->values[0] = 0;
 646                 rdev->mode_info.coherent_mode_property->values[0] = 1;
 647         }
 648
 649         if (!ASIC_IS_AVIVO(rdev)) {
 650                 sz = ARRAY_SIZE(radeon_tmds_pll_enum_list);
 651                 rdev->mode_info.tmds_pll_property =
 652                         drm_property_create(rdev->ddev,
 653                                             DRM_MODE_PROP_ENUM,
 654                                             "tmds_pll", sz);
 655                 for (i = 0; i < sz; i++) {
 656                         drm_property_add_enum(rdev->mode_info.tmds_pll_property,
 657                                               i,
 658                                               radeon_tmds_pll_enum_list[i].type,
 659                                               radeon_tmds_pll_enum_list[i].name);
 660                 }
 661         }
 662
 663         rdev->mode_info.load_detect_property =
 664                 drm_property_create(rdev->ddev,
 665                                     DRM_MODE_PROP_RANGE,
 666                                     "load detection", 2);
 667         if (!rdev->mode_info.load_detect_property)
 668                 return -ENOMEM;
 669         rdev->mode_info.load_detect_property->values[0] = 0;
 670         rdev->mode_info.load_detect_property->values[0] = 1;
 671
 672         drm_mode_create_scaling_mode_property(rdev->ddev);
 673
 674         sz = ARRAY_SIZE(radeon_tv_std_enum_list);
 675         rdev->mode_info.tv_std_property =
 676                 drm_property_create(rdev->ddev,
 677                                     DRM_MODE_PROP_ENUM,
 678                                     "tv standard", sz);
 679         for (i = 0; i < sz; i++) {
 680                 drm_property_add_enum(rdev->mode_info.tv_std_property,
 681                                       i,
 682                                       radeon_tv_std_enum_list[i].type,
 683                                       radeon_tv_std_enum_list[i].name);
 684         }
 685
 686         return 0;
 687 }
 688
 689 int radeon_modeset_init(struct radeon_device *rdev)
 690 {
 691         int num_crtc = 2, i;
 692         int ret;
 693
 694         drm_mode_config_init(rdev->ddev);
 695         rdev->mode_info.mode_config_initialized = true;
 696
 697         rdev->ddev->mode_config.funcs = (void *)&radeon_mode_funcs;
 698
 699         if (ASIC_IS_AVIVO(rdev)) {
 700                 rdev->ddev->mode_config.max_width = 8192;
 701                 rdev->ddev->mode_config.max_height = 8192;
 702         } else {
 703                 rdev->ddev->mode_config.max_width = 4096;
 704                 rdev->ddev->mode_config.max_height = 4096;
 705         }
 706
 707         rdev->ddev->mode_config.fb_base = rdev->mc.aper_base;
 708
 709         ret = radeon_modeset_create_props(rdev);
 710         if (ret) {
 711                 return ret;
 712         }
 713
 714         if (rdev->flags & RADEON_SINGLE_CRTC)
 715                 num_crtc = 1;
 716
 717         /* allocate crtcs */
 718         for (i = 0; i < num_crtc; i++) {
 719                 radeon_crtc_init(rdev->ddev, i);
 720         }
 721
 722         /* okay we should have all the bios connectors */
 723         ret = radeon_setup_enc_conn(rdev->ddev);
 724         if (!ret) {
 725                 return ret;
 726         }
 727         drm_helper_initial_config(rdev->ddev);
 728         return 0;
 729 }
 730
 731 void radeon_modeset_fini(struct radeon_device *rdev)
 732 {
 733         if (rdev->mode_info.mode_config_initialized) {
 734                 drm_mode_config_cleanup(rdev->ddev);
 735                 rdev->mode_info.mode_config_initialized = false;
 736         }
 737 }
 738
 739 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
 740                                 struct drm_display_mode *mode,
 741                                 struct drm_display_mode *adjusted_mode)
 742 {
 743         struct drm_device *dev = crtc->dev;
 744         struct drm_encoder *encoder;
 745         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
 746         struct radeon_encoder *radeon_encoder;
 747         bool first = true;
 748
 749         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 750                 radeon_encoder = to_radeon_encoder(encoder);
 751                 if (encoder->crtc != crtc)
 752                         continue;
 753                 if (first) {
 754                         /* set scaling */
 755                         if (radeon_encoder->rmx_type == RMX_OFF)
 756                                 radeon_crtc->rmx_type = RMX_OFF;
 757                         else if (mode->hdisplay < radeon_encoder->native_mode.hdisplay ||
 758                                  mode->vdisplay < radeon_encoder->native_mode.vdisplay)
 759                                 radeon_crtc->rmx_type = radeon_encoder->rmx_type;
 760                         else
 761                                 radeon_crtc->rmx_type = RMX_OFF;
 762                         /* copy native mode */
 763                         memcpy(&radeon_crtc->native_mode,
 764                                &radeon_encoder->native_mode,
 765                                 sizeof(struct drm_display_mode));
 766                         first = false;
 767                 } else {
 768                         if (radeon_crtc->rmx_type != radeon_encoder->rmx_type) {
 769                                 /* WARNING: Right now this can't happen but
 770                                  * in the future we need to check that scaling
 771                                  * are consistent accross different encoder
 772                                  * (ie all encoder can work with the same
 773                                  *  scaling).
 774                                  */
 775                                 DRM_ERROR("Scaling not consistent accross encoder.\n");
 776                                 return false;
 777                         }
 778                 }
 779         }
 780         if (radeon_crtc->rmx_type != RMX_OFF) {
 781                 fixed20_12 a, b;
 782                 a.full = rfixed_const(crtc->mode.vdisplay);
 783                 b.full = rfixed_const(radeon_crtc->native_mode.hdisplay);
 784                 radeon_crtc->vsc.full = rfixed_div(a, b);
 785                 a.full = rfixed_const(crtc->mode.hdisplay);
 786                 b.full = rfixed_const(radeon_crtc->native_mode.vdisplay);
 787                 radeon_crtc->hsc.full = rfixed_div(a, b);
 788         } else {
 789                 radeon_crtc->vsc.full = rfixed_const(1);
 790                 radeon_crtc->hsc.full = rfixed_const(1);
 791         }
 792         return true;
 793 }