1 /* 2 * Copyright 2012 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "nv50.h" 25 #include "rootnv50.h" 26 27 #include <subdev/bios.h> 28 #include <subdev/bios/disp.h> 29 #include <subdev/bios/init.h> 30 #include <subdev/bios/pll.h> 31 #include <subdev/devinit.h> 32 33 void 34 gf119_disp_vblank_init(struct nv50_disp *disp, int head) 35 { 36 struct nvkm_device *device = disp->base.engine.subdev.device; 37 nvkm_mask(device, 0x6100c0 + (head * 0x800), 0x00000001, 0x00000001); 38 } 39 40 void 41 gf119_disp_vblank_fini(struct nv50_disp *disp, int head) 42 { 43 struct nvkm_device *device = disp->base.engine.subdev.device; 44 nvkm_mask(device, 0x6100c0 + (head * 0x800), 0x00000001, 0x00000000); 45 } 46 47 static struct nvkm_output * 48 exec_lookup(struct nv50_disp *disp, int head, int or, u32 ctrl, 49 u32 *data, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, 50 struct nvbios_outp *info) 51 { 52 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 53 struct nvkm_bios *bios = subdev->device->bios; 54 struct nvkm_output *outp; 55 u16 mask, type; 56 57 if (or < 4) { 58 type = DCB_OUTPUT_ANALOG; 59 mask = 0; 60 } else { 61 or -= 4; 62 switch (ctrl & 0x00000f00) { 63 case 0x00000000: type = DCB_OUTPUT_LVDS; mask = 1; break; 64 case 0x00000100: type = DCB_OUTPUT_TMDS; mask = 1; break; 65 case 0x00000200: type = DCB_OUTPUT_TMDS; mask = 2; break; 66 case 0x00000500: type = DCB_OUTPUT_TMDS; mask = 3; break; 67 case 0x00000800: type = DCB_OUTPUT_DP; mask = 1; break; 68 case 0x00000900: type = DCB_OUTPUT_DP; mask = 2; break; 69 default: 70 nvkm_error(subdev, "unknown SOR mc %08x\n", ctrl); 71 return NULL; 72 } 73 } 74 75 mask = 0x00c0 & (mask << 6); 76 mask |= 0x0001 << or; 77 mask |= 0x0100 << head; 78 79 list_for_each_entry(outp, &disp->base.outp, head) { 80 if ((outp->info.hasht & 0xff) == type && 81 (outp->info.hashm & mask) == mask) { 82 *data = nvbios_outp_match(bios, outp->info.hasht, mask, 83 ver, hdr, cnt, len, info); 84 if (!*data) 85 return NULL; 86 return outp; 87 } 88 } 89 90 return NULL; 91 } 92 93 static struct nvkm_output * 94 exec_script(struct nv50_disp *disp, int head, int id) 95 { 96 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 97 struct nvkm_device *device = subdev->device; 98 struct nvkm_bios *bios = device->bios; 99 struct nvkm_output *outp; 100 struct nvbios_outp info; 101 u8 ver, hdr, cnt, len; 102 u32 data, ctrl = 0; 103 int or; 104 105 for (or = 0; !(ctrl & (1 << head)) && or < 8; or++) { 106 ctrl = nvkm_rd32(device, 0x640180 + (or * 0x20)); 107 if (ctrl & (1 << head)) 108 break; 109 } 110 111 if (or == 8) 112 return NULL; 113 114 outp = exec_lookup(disp, head, or, ctrl, &data, &ver, &hdr, &cnt, &len, &info); 115 if (outp) { 116 struct nvbios_init init = { 117 .subdev = subdev, 118 .bios = bios, 119 .offset = info.script[id], 120 .outp = &outp->info, 121 .crtc = head, 122 .execute = 1, 123 }; 124 125 nvbios_exec(&init); 126 } 127 128 return outp; 129 } 130 131 static struct nvkm_output * 132 exec_clkcmp(struct nv50_disp *disp, int head, int id, u32 pclk, u32 *conf) 133 { 134 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 135 struct nvkm_device *device = subdev->device; 136 struct nvkm_bios *bios = device->bios; 137 struct nvkm_output *outp; 138 struct nvbios_outp info1; 139 struct nvbios_ocfg info2; 140 u8 ver, hdr, cnt, len; 141 u32 data, ctrl = 0; 142 int or; 143 144 for (or = 0; !(ctrl & (1 << head)) && or < 8; or++) { 145 ctrl = nvkm_rd32(device, 0x660180 + (or * 0x20)); 146 if (ctrl & (1 << head)) 147 break; 148 } 149 150 if (or == 8) 151 return NULL; 152 153 outp = exec_lookup(disp, head, or, ctrl, &data, &ver, &hdr, &cnt, &len, &info1); 154 if (!outp) 155 return NULL; 156 157 *conf = (ctrl & 0x00000f00) >> 8; 158 switch (outp->info.type) { 159 case DCB_OUTPUT_TMDS: 160 if (*conf == 5) 161 *conf |= 0x0100; 162 break; 163 case DCB_OUTPUT_LVDS: 164 *conf |= disp->sor.lvdsconf; 165 break; 166 default: 167 break; 168 } 169 170 data = nvbios_ocfg_match(bios, data, *conf & 0xff, *conf >> 8, 171 &ver, &hdr, &cnt, &len, &info2); 172 if (data && id < 0xff) { 173 data = nvbios_oclk_match(bios, info2.clkcmp[id], pclk); 174 if (data) { 175 struct nvbios_init init = { 176 .subdev = subdev, 177 .bios = bios, 178 .offset = data, 179 .outp = &outp->info, 180 .crtc = head, 181 .execute = 1, 182 }; 183 184 nvbios_exec(&init); 185 } 186 } 187 188 return outp; 189 } 190 191 static void 192 gf119_disp_intr_unk1_0(struct nv50_disp *disp, int head) 193 { 194 exec_script(disp, head, 1); 195 } 196 197 static void 198 gf119_disp_intr_unk2_0(struct nv50_disp *disp, int head) 199 { 200 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 201 struct nvkm_output *outp = exec_script(disp, head, 2); 202 203 /* see note in nv50_disp_intr_unk20_0() */ 204 if (outp && outp->info.type == DCB_OUTPUT_DP) { 205 struct nvkm_output_dp *outpdp = nvkm_output_dp(outp); 206 if (!outpdp->lt.mst) { 207 struct nvbios_init init = { 208 .subdev = subdev, 209 .bios = subdev->device->bios, 210 .outp = &outp->info, 211 .crtc = head, 212 .offset = outpdp->info.script[4], 213 .execute = 1, 214 }; 215 216 nvkm_notify_put(&outpdp->irq); 217 nvbios_exec(&init); 218 atomic_set(&outpdp->lt.done, 0); 219 } 220 } 221 } 222 223 static void 224 gf119_disp_intr_unk2_1(struct nv50_disp *disp, int head) 225 { 226 struct nvkm_device *device = disp->base.engine.subdev.device; 227 struct nvkm_devinit *devinit = device->devinit; 228 u32 pclk = nvkm_rd32(device, 0x660450 + (head * 0x300)) / 1000; 229 if (pclk) 230 nvkm_devinit_pll_set(devinit, PLL_VPLL0 + head, pclk); 231 nvkm_wr32(device, 0x612200 + (head * 0x800), 0x00000000); 232 } 233 234 static void 235 gf119_disp_intr_unk2_2_tu(struct nv50_disp *disp, int head, 236 struct dcb_output *outp) 237 { 238 struct nvkm_device *device = disp->base.engine.subdev.device; 239 const int or = ffs(outp->or) - 1; 240 const u32 ctrl = nvkm_rd32(device, 0x660200 + (or * 0x020)); 241 const u32 conf = nvkm_rd32(device, 0x660404 + (head * 0x300)); 242 const s32 vactive = nvkm_rd32(device, 0x660414 + (head * 0x300)) & 0xffff; 243 const s32 vblanke = nvkm_rd32(device, 0x66041c + (head * 0x300)) & 0xffff; 244 const s32 vblanks = nvkm_rd32(device, 0x660420 + (head * 0x300)) & 0xffff; 245 const u32 pclk = nvkm_rd32(device, 0x660450 + (head * 0x300)) / 1000; 246 const u32 link = ((ctrl & 0xf00) == 0x800) ? 0 : 1; 247 const u32 hoff = (head * 0x800); 248 const u32 soff = ( or * 0x800); 249 const u32 loff = (link * 0x080) + soff; 250 const u32 symbol = 100000; 251 const u32 TU = 64; 252 u32 dpctrl = nvkm_rd32(device, 0x61c10c + loff); 253 u32 clksor = nvkm_rd32(device, 0x612300 + soff); 254 u32 datarate, link_nr, link_bw, bits; 255 u64 ratio, value; 256 257 link_nr = hweight32(dpctrl & 0x000f0000); 258 link_bw = (clksor & 0x007c0000) >> 18; 259 link_bw *= 27000; 260 261 /* symbols/hblank - algorithm taken from comments in tegra driver */ 262 value = vblanke + vactive - vblanks - 7; 263 value = value * link_bw; 264 do_div(value, pclk); 265 value = value - (3 * !!(dpctrl & 0x00004000)) - (12 / link_nr); 266 nvkm_mask(device, 0x616620 + hoff, 0x0000ffff, value); 267 268 /* symbols/vblank - algorithm taken from comments in tegra driver */ 269 value = vblanks - vblanke - 25; 270 value = value * link_bw; 271 do_div(value, pclk); 272 value = value - ((36 / link_nr) + 3) - 1; 273 nvkm_mask(device, 0x616624 + hoff, 0x00ffffff, value); 274 275 /* watermark */ 276 if ((conf & 0x3c0) == 0x180) bits = 30; 277 else if ((conf & 0x3c0) == 0x140) bits = 24; 278 else bits = 18; 279 datarate = (pclk * bits) / 8; 280 281 ratio = datarate; 282 ratio *= symbol; 283 do_div(ratio, link_nr * link_bw); 284 285 value = (symbol - ratio) * TU; 286 value *= ratio; 287 do_div(value, symbol); 288 do_div(value, symbol); 289 290 value += 5; 291 value |= 0x08000000; 292 293 nvkm_wr32(device, 0x616610 + hoff, value); 294 } 295 296 static void 297 gf119_disp_intr_unk2_2(struct nv50_disp *disp, int head) 298 { 299 struct nvkm_device *device = disp->base.engine.subdev.device; 300 struct nvkm_output *outp; 301 u32 pclk = nvkm_rd32(device, 0x660450 + (head * 0x300)) / 1000; 302 u32 conf, addr, data; 303 304 outp = exec_clkcmp(disp, head, 0xff, pclk, &conf); 305 if (!outp) 306 return; 307 308 /* see note in nv50_disp_intr_unk20_2() */ 309 if (outp->info.type == DCB_OUTPUT_DP) { 310 u32 sync = nvkm_rd32(device, 0x660404 + (head * 0x300)); 311 switch ((sync & 0x000003c0) >> 6) { 312 case 6: pclk = pclk * 30; break; 313 case 5: pclk = pclk * 24; break; 314 case 2: 315 default: 316 pclk = pclk * 18; 317 break; 318 } 319 320 if (nvkm_output_dp_train(outp, pclk)) 321 OUTP_ERR(outp, "link not trained before attach"); 322 } else { 323 if (disp->func->sor.magic) 324 disp->func->sor.magic(outp); 325 } 326 327 exec_clkcmp(disp, head, 0, pclk, &conf); 328 329 if (outp->info.type == DCB_OUTPUT_ANALOG) { 330 addr = 0x612280 + (ffs(outp->info.or) - 1) * 0x800; 331 data = 0x00000000; 332 } else { 333 addr = 0x612300 + (ffs(outp->info.or) - 1) * 0x800; 334 data = (conf & 0x0100) ? 0x00000101 : 0x00000000; 335 switch (outp->info.type) { 336 case DCB_OUTPUT_TMDS: 337 nvkm_mask(device, addr, 0x007c0000, 0x00280000); 338 break; 339 case DCB_OUTPUT_DP: 340 gf119_disp_intr_unk2_2_tu(disp, head, &outp->info); 341 break; 342 default: 343 break; 344 } 345 } 346 347 nvkm_mask(device, addr, 0x00000707, data); 348 } 349 350 static void 351 gf119_disp_intr_unk4_0(struct nv50_disp *disp, int head) 352 { 353 struct nvkm_device *device = disp->base.engine.subdev.device; 354 u32 pclk = nvkm_rd32(device, 0x660450 + (head * 0x300)) / 1000; 355 u32 conf; 356 357 exec_clkcmp(disp, head, 1, pclk, &conf); 358 } 359 360 void 361 gf119_disp_intr_supervisor(struct work_struct *work) 362 { 363 struct nv50_disp *disp = 364 container_of(work, struct nv50_disp, supervisor); 365 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 366 struct nvkm_device *device = subdev->device; 367 u32 mask[4]; 368 int head; 369 370 nvkm_debug(subdev, "supervisor %d\n", ffs(disp->super)); 371 for (head = 0; head < disp->base.head.nr; head++) { 372 mask[head] = nvkm_rd32(device, 0x6101d4 + (head * 0x800)); 373 nvkm_debug(subdev, "head %d: %08x\n", head, mask[head]); 374 } 375 376 if (disp->super & 0x00000001) { 377 nv50_disp_chan_mthd(disp->chan[0], NV_DBG_DEBUG); 378 for (head = 0; head < disp->base.head.nr; head++) { 379 if (!(mask[head] & 0x00001000)) 380 continue; 381 nvkm_debug(subdev, "supervisor 1.0 - head %d\n", head); 382 gf119_disp_intr_unk1_0(disp, head); 383 } 384 } else 385 if (disp->super & 0x00000002) { 386 for (head = 0; head < disp->base.head.nr; head++) { 387 if (!(mask[head] & 0x00001000)) 388 continue; 389 nvkm_debug(subdev, "supervisor 2.0 - head %d\n", head); 390 gf119_disp_intr_unk2_0(disp, head); 391 } 392 for (head = 0; head < disp->base.head.nr; head++) { 393 if (!(mask[head] & 0x00010000)) 394 continue; 395 nvkm_debug(subdev, "supervisor 2.1 - head %d\n", head); 396 gf119_disp_intr_unk2_1(disp, head); 397 } 398 for (head = 0; head < disp->base.head.nr; head++) { 399 if (!(mask[head] & 0x00001000)) 400 continue; 401 nvkm_debug(subdev, "supervisor 2.2 - head %d\n", head); 402 gf119_disp_intr_unk2_2(disp, head); 403 } 404 } else 405 if (disp->super & 0x00000004) { 406 for (head = 0; head < disp->base.head.nr; head++) { 407 if (!(mask[head] & 0x00001000)) 408 continue; 409 nvkm_debug(subdev, "supervisor 3.0 - head %d\n", head); 410 gf119_disp_intr_unk4_0(disp, head); 411 } 412 } 413 414 for (head = 0; head < disp->base.head.nr; head++) 415 nvkm_wr32(device, 0x6101d4 + (head * 0x800), 0x00000000); 416 nvkm_wr32(device, 0x6101d0, 0x80000000); 417 } 418 419 void 420 gf119_disp_intr_error(struct nv50_disp *disp, int chid) 421 { 422 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 423 struct nvkm_device *device = subdev->device; 424 u32 mthd = nvkm_rd32(device, 0x6101f0 + (chid * 12)); 425 u32 data = nvkm_rd32(device, 0x6101f4 + (chid * 12)); 426 u32 unkn = nvkm_rd32(device, 0x6101f8 + (chid * 12)); 427 428 nvkm_error(subdev, "chid %d mthd %04x data %08x %08x %08x\n", 429 chid, (mthd & 0x0000ffc), data, mthd, unkn); 430 431 if (chid < ARRAY_SIZE(disp->chan)) { 432 switch (mthd & 0xffc) { 433 case 0x0080: 434 nv50_disp_chan_mthd(disp->chan[chid], NV_DBG_ERROR); 435 break; 436 default: 437 break; 438 } 439 } 440 441 nvkm_wr32(device, 0x61009c, (1 << chid)); 442 nvkm_wr32(device, 0x6101f0 + (chid * 12), 0x90000000); 443 } 444 445 void 446 gf119_disp_intr(struct nv50_disp *disp) 447 { 448 struct nvkm_subdev *subdev = &disp->base.engine.subdev; 449 struct nvkm_device *device = subdev->device; 450 u32 intr = nvkm_rd32(device, 0x610088); 451 int i; 452 453 if (intr & 0x00000001) { 454 u32 stat = nvkm_rd32(device, 0x61008c); 455 while (stat) { 456 int chid = __ffs(stat); stat &= ~(1 << chid); 457 nv50_disp_chan_uevent_send(disp, chid); 458 nvkm_wr32(device, 0x61008c, 1 << chid); 459 } 460 intr &= ~0x00000001; 461 } 462 463 if (intr & 0x00000002) { 464 u32 stat = nvkm_rd32(device, 0x61009c); 465 int chid = ffs(stat) - 1; 466 if (chid >= 0) 467 disp->func->intr_error(disp, chid); 468 intr &= ~0x00000002; 469 } 470 471 if (intr & 0x00100000) { 472 u32 stat = nvkm_rd32(device, 0x6100ac); 473 if (stat & 0x00000007) { 474 disp->super = (stat & 0x00000007); 475 schedule_work(&disp->supervisor); 476 nvkm_wr32(device, 0x6100ac, disp->super); 477 stat &= ~0x00000007; 478 } 479 480 if (stat) { 481 nvkm_warn(subdev, "intr24 %08x\n", stat); 482 nvkm_wr32(device, 0x6100ac, stat); 483 } 484 485 intr &= ~0x00100000; 486 } 487 488 for (i = 0; i < disp->base.head.nr; i++) { 489 u32 mask = 0x01000000 << i; 490 if (mask & intr) { 491 u32 stat = nvkm_rd32(device, 0x6100bc + (i * 0x800)); 492 if (stat & 0x00000001) 493 nvkm_disp_vblank(&disp->base, i); 494 nvkm_mask(device, 0x6100bc + (i * 0x800), 0, 0); 495 nvkm_rd32(device, 0x6100c0 + (i * 0x800)); 496 } 497 } 498 } 499 500 int 501 gf119_disp_new_(const struct nv50_disp_func *func, struct nvkm_device *device, 502 int index, struct nvkm_disp **pdisp) 503 { 504 u32 heads = nvkm_rd32(device, 0x022448); 505 return nv50_disp_new_(func, device, index, heads, pdisp); 506 } 507 508 static const struct nv50_disp_func 509 gf119_disp = { 510 .intr = gf119_disp_intr, 511 .intr_error = gf119_disp_intr_error, 512 .uevent = &gf119_disp_chan_uevent, 513 .super = gf119_disp_intr_supervisor, 514 .root = &gf119_disp_root_oclass, 515 .head.vblank_init = gf119_disp_vblank_init, 516 .head.vblank_fini = gf119_disp_vblank_fini, 517 .head.scanoutpos = gf119_disp_root_scanoutpos, 518 .outp.internal.crt = nv50_dac_output_new, 519 .outp.internal.tmds = nv50_sor_output_new, 520 .outp.internal.lvds = nv50_sor_output_new, 521 .outp.internal.dp = gf119_sor_dp_new, 522 .dac.nr = 3, 523 .dac.power = nv50_dac_power, 524 .dac.sense = nv50_dac_sense, 525 .sor.nr = 4, 526 .sor.power = nv50_sor_power, 527 .sor.hda_eld = gf119_hda_eld, 528 .sor.hdmi = gf119_hdmi_ctrl, 529 }; 530 531 int 532 gf119_disp_new(struct nvkm_device *device, int index, struct nvkm_disp **pdisp) 533 { 534 return gf119_disp_new_(&gf119_disp, device, index, pdisp); 535 } 536