1/* 2 * Copyright 2013 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 * Roy Spliet <rspliet@eclipso.eu> 24 */ 25#define gt215_ram(p) container_of((p), struct gt215_ram, base) 26#include "ram.h" 27#include "ramfuc.h" 28 29#include <core/memory.h> 30#include <core/option.h> 31#include <subdev/bios.h> 32#include <subdev/bios/M0205.h> 33#include <subdev/bios/rammap.h> 34#include <subdev/bios/timing.h> 35#include <subdev/clk/gt215.h> 36#include <subdev/gpio.h> 37 38struct gt215_ramfuc { 39 struct ramfuc base; 40 struct ramfuc_reg r_0x001610; 41 struct ramfuc_reg r_0x001700; 42 struct ramfuc_reg r_0x002504; 43 struct ramfuc_reg r_0x004000; 44 struct ramfuc_reg r_0x004004; 45 struct ramfuc_reg r_0x004018; 46 struct ramfuc_reg r_0x004128; 47 struct ramfuc_reg r_0x004168; 48 struct ramfuc_reg r_0x100080; 49 struct ramfuc_reg r_0x100200; 50 struct ramfuc_reg r_0x100210; 51 struct ramfuc_reg r_0x100220[9]; 52 struct ramfuc_reg r_0x100264; 53 struct ramfuc_reg r_0x1002d0; 54 struct ramfuc_reg r_0x1002d4; 55 struct ramfuc_reg r_0x1002dc; 56 struct ramfuc_reg r_0x10053c; 57 struct ramfuc_reg r_0x1005a0; 58 struct ramfuc_reg r_0x1005a4; 59 struct ramfuc_reg r_0x100700; 60 struct ramfuc_reg r_0x100714; 61 struct ramfuc_reg r_0x100718; 62 struct ramfuc_reg r_0x10071c; 63 struct ramfuc_reg r_0x100720; 64 struct ramfuc_reg r_0x100760; 65 struct ramfuc_reg r_0x1007a0; 66 struct ramfuc_reg r_0x1007e0; 67 struct ramfuc_reg r_0x100da0; 68 struct ramfuc_reg r_0x10f804; 69 struct ramfuc_reg r_0x1110e0; 70 struct ramfuc_reg r_0x111100; 71 struct ramfuc_reg r_0x111104; 72 struct ramfuc_reg r_0x1111e0; 73 struct ramfuc_reg r_0x111400; 74 struct ramfuc_reg r_0x611200; 75 struct ramfuc_reg r_mr[4]; 76 struct ramfuc_reg r_gpio[4]; 77}; 78 79struct gt215_ltrain { 80 enum { 81 NVA3_TRAIN_UNKNOWN, 82 NVA3_TRAIN_UNSUPPORTED, 83 NVA3_TRAIN_ONCE, 84 NVA3_TRAIN_EXEC, 85 NVA3_TRAIN_DONE 86 } state; 87 u32 r_100720; 88 u32 r_1111e0; 89 u32 r_111400; 90 struct nvkm_memory *memory; 91}; 92 93struct gt215_ram { 94 struct nvkm_ram base; 95 struct gt215_ramfuc fuc; 96 struct gt215_ltrain ltrain; 97}; 98 99static void 100gt215_link_train_calc(u32 *vals, struct gt215_ltrain *train) 101{ 102 int i, lo, hi; 103 u8 median[8], bins[4] = {0, 0, 0, 0}, bin = 0, qty = 0; 104 105 for (i = 0; i < 8; i++) { 106 for (lo = 0; lo < 0x40; lo++) { 107 if (!(vals[lo] & 0x80000000)) 108 continue; 109 if (vals[lo] & (0x101 << i)) 110 break; 111 } 112 113 if (lo == 0x40) 114 return; 115 116 for (hi = lo + 1; hi < 0x40; hi++) { 117 if (!(vals[lo] & 0x80000000)) 118 continue; 119 if (!(vals[hi] & (0x101 << i))) { 120 hi--; 121 break; 122 } 123 } 124 125 median[i] = ((hi - lo) >> 1) + lo; 126 bins[(median[i] & 0xf0) >> 4]++; 127 median[i] += 0x30; 128 } 129 130 /* Find the best value for 0x1111e0 */ 131 for (i = 0; i < 4; i++) { 132 if (bins[i] > qty) { 133 bin = i + 3; 134 qty = bins[i]; 135 } 136 } 137 138 train->r_100720 = 0; 139 for (i = 0; i < 8; i++) { 140 median[i] = max(median[i], (u8) (bin << 4)); 141 median[i] = min(median[i], (u8) ((bin << 4) | 0xf)); 142 143 train->r_100720 |= ((median[i] & 0x0f) << (i << 2)); 144 } 145 146 train->r_1111e0 = 0x02000000 | (bin * 0x101); 147 train->r_111400 = 0x0; 148} 149 150/* 151 * Link training for (at least) DDR3 152 */ 153static int 154gt215_link_train(struct gt215_ram *ram) 155{ 156 struct gt215_ltrain *train = &ram->ltrain; 157 struct gt215_ramfuc *fuc = &ram->fuc; 158 struct nvkm_subdev *subdev = &ram->base.fb->subdev; 159 struct nvkm_device *device = subdev->device; 160 struct nvkm_bios *bios = device->bios; 161 struct nvkm_clk *clk = device->clk; 162 u32 *result, r1700; 163 int ret, i; 164 struct nvbios_M0205T M0205T = { 0 }; 165 u8 ver, hdr, cnt, len, snr, ssz; 166 unsigned int clk_current; 167 unsigned long flags; 168 unsigned long *f = &flags; 169 170 if (nvkm_boolopt(device->cfgopt, "NvMemExec", true) != true) 171 return -ENOSYS; 172 173 /* XXX: Multiple partitions? */ 174 result = kmalloc_array(64, sizeof(u32), GFP_KERNEL); 175 if (!result) 176 return -ENOMEM; 177 178 train->state = NVA3_TRAIN_EXEC; 179 180 /* Clock speeds for training and back */ 181 nvbios_M0205Tp(bios, &ver, &hdr, &cnt, &len, &snr, &ssz, &M0205T); 182 if (M0205T.freq == 0) { 183 kfree(result); 184 return -ENOENT; 185 } 186 187 clk_current = nvkm_clk_read(clk, nv_clk_src_mem); 188 189 ret = gt215_clk_pre(clk, f); 190 if (ret) 191 goto out; 192 193 /* First: clock up/down */ 194 ret = ram->base.func->calc(&ram->base, (u32) M0205T.freq * 1000); 195 if (ret) 196 goto out; 197 198 /* Do this *after* calc, eliminates write in script */ 199 nvkm_wr32(device, 0x111400, 0x00000000); 200 /* XXX: Magic writes that improve train reliability? */ 201 nvkm_mask(device, 0x100674, 0x0000ffff, 0x00000000); 202 nvkm_mask(device, 0x1005e4, 0x0000ffff, 0x00000000); 203 nvkm_mask(device, 0x100b0c, 0x000000ff, 0x00000000); 204 nvkm_wr32(device, 0x100c04, 0x00000400); 205 206 /* Now the training script */ 207 r1700 = ram_rd32(fuc, 0x001700); 208 209 ram_mask(fuc, 0x100200, 0x00000800, 0x00000000); 210 ram_wr32(fuc, 0x611200, 0x3300); 211 ram_wait_vblank(fuc); 212 ram_wait(fuc, 0x611200, 0x00000003, 0x00000000, 500000); 213 ram_mask(fuc, 0x001610, 0x00000083, 0x00000003); 214 ram_mask(fuc, 0x100080, 0x00000020, 0x00000000); 215 ram_mask(fuc, 0x10f804, 0x80000000, 0x00000000); 216 ram_wr32(fuc, 0x001700, 0x00000000); 217 218 ram_train(fuc); 219 220 /* Reset */ 221 ram_mask(fuc, 0x10f804, 0x80000000, 0x80000000); 222 ram_wr32(fuc, 0x10053c, 0x0); 223 ram_wr32(fuc, 0x100720, train->r_100720); 224 ram_wr32(fuc, 0x1111e0, train->r_1111e0); 225 ram_wr32(fuc, 0x111400, train->r_111400); 226 ram_nuke(fuc, 0x100080); 227 ram_mask(fuc, 0x100080, 0x00000020, 0x00000020); 228 ram_nsec(fuc, 1000); 229 230 ram_wr32(fuc, 0x001700, r1700); 231 ram_mask(fuc, 0x001610, 0x00000083, 0x00000080); 232 ram_wr32(fuc, 0x611200, 0x3330); 233 ram_mask(fuc, 0x100200, 0x00000800, 0x00000800); 234 235 ram_exec(fuc, true); 236 237 ram->base.func->calc(&ram->base, clk_current); 238 ram_exec(fuc, true); 239 240 /* Post-processing, avoids flicker */ 241 nvkm_mask(device, 0x616308, 0x10, 0x10); 242 nvkm_mask(device, 0x616b08, 0x10, 0x10); 243 244 gt215_clk_post(clk, f); 245 246 ram_train_result(ram->base.fb, result, 64); 247 for (i = 0; i < 64; i++) 248 nvkm_debug(subdev, "Train: %08x", result[i]); 249 gt215_link_train_calc(result, train); 250 251 nvkm_debug(subdev, "Train: %08x %08x %08x", train->r_100720, 252 train->r_1111e0, train->r_111400); 253 254 kfree(result); 255 256 train->state = NVA3_TRAIN_DONE; 257 258 return ret; 259 260out: 261 if(ret == -EBUSY) 262 f = NULL; 263 264 train->state = NVA3_TRAIN_UNSUPPORTED; 265 266 gt215_clk_post(clk, f); 267 kfree(result); 268 return ret; 269} 270 271static int 272gt215_link_train_init(struct gt215_ram *ram) 273{ 274 static const u32 pattern[16] = { 275 0xaaaaaaaa, 0xcccccccc, 0xdddddddd, 0xeeeeeeee, 276 0x00000000, 0x11111111, 0x44444444, 0xdddddddd, 277 0x33333333, 0x55555555, 0x77777777, 0x66666666, 278 0x99999999, 0x88888888, 0xeeeeeeee, 0xbbbbbbbb, 279 }; 280 struct gt215_ltrain *train = &ram->ltrain; 281 struct nvkm_device *device = ram->base.fb->subdev.device; 282 struct nvkm_bios *bios = device->bios; 283 struct nvbios_M0205E M0205E; 284 u8 ver, hdr, cnt, len; 285 u32 r001700; 286 u64 addr; 287 int ret, i = 0; 288 289 train->state = NVA3_TRAIN_UNSUPPORTED; 290 291 /* We support type "5" 292 * XXX: training pattern table appears to be unused for this routine */ 293 if (!nvbios_M0205Ep(bios, i, &ver, &hdr, &cnt, &len, &M0205E)) 294 return -ENOENT; 295 296 if (M0205E.type != 5) 297 return 0; 298 299 train->state = NVA3_TRAIN_ONCE; 300 301 ret = nvkm_ram_get(device, NVKM_RAM_MM_NORMAL, 0x01, 16, 0x8000, 302 true, true, &ram->ltrain.memory); 303 if (ret) 304 return ret; 305 306 addr = nvkm_memory_addr(ram->ltrain.memory); 307 308 nvkm_wr32(device, 0x100538, 0x10000000 | (addr >> 16)); 309 nvkm_wr32(device, 0x1005a8, 0x0000ffff); 310 nvkm_mask(device, 0x10f800, 0x00000001, 0x00000001); 311 312 for (i = 0; i < 0x30; i++) { 313 nvkm_wr32(device, 0x10f8c0, (i << 8) | i); 314 nvkm_wr32(device, 0x10f900, pattern[i % 16]); 315 } 316 317 for (i = 0; i < 0x30; i++) { 318 nvkm_wr32(device, 0x10f8e0, (i << 8) | i); 319 nvkm_wr32(device, 0x10f920, pattern[i % 16]); 320 } 321 322 /* And upload the pattern */ 323 r001700 = nvkm_rd32(device, 0x1700); 324 nvkm_wr32(device, 0x1700, addr >> 16); 325 for (i = 0; i < 16; i++) 326 nvkm_wr32(device, 0x700000 + (i << 2), pattern[i]); 327 for (i = 0; i < 16; i++) 328 nvkm_wr32(device, 0x700100 + (i << 2), pattern[i]); 329 nvkm_wr32(device, 0x1700, r001700); 330 331 train->r_100720 = nvkm_rd32(device, 0x100720); 332 train->r_1111e0 = nvkm_rd32(device, 0x1111e0); 333 train->r_111400 = nvkm_rd32(device, 0x111400); 334 return 0; 335} 336 337static void 338gt215_link_train_fini(struct gt215_ram *ram) 339{ 340 nvkm_memory_unref(&ram->ltrain.memory); 341} 342 343/* 344 * RAM reclocking 345 */ 346#define T(t) cfg->timing_10_##t 347static int 348gt215_ram_timing_calc(struct gt215_ram *ram, u32 *timing) 349{ 350 struct nvbios_ramcfg *cfg = &ram->base.target.bios; 351 struct nvkm_subdev *subdev = &ram->base.fb->subdev; 352 struct nvkm_device *device = subdev->device; 353 int tUNK_base, tUNK_40_0, prevCL; 354 u32 cur2, cur3, cur7, cur8; 355 356 cur2 = nvkm_rd32(device, 0x100228); 357 cur3 = nvkm_rd32(device, 0x10022c); 358 cur7 = nvkm_rd32(device, 0x10023c); 359 cur8 = nvkm_rd32(device, 0x100240); 360 361 362 switch ((!T(CWL)) * ram->base.type) { 363 case NVKM_RAM_TYPE_DDR2: 364 T(CWL) = T(CL) - 1; 365 break; 366 case NVKM_RAM_TYPE_GDDR3: 367 T(CWL) = ((cur2 & 0xff000000) >> 24) + 1; 368 break; 369 } 370 371 prevCL = (cur3 & 0x000000ff) + 1; 372 tUNK_base = ((cur7 & 0x00ff0000) >> 16) - prevCL; 373 374 timing[0] = (T(RP) << 24 | T(RAS) << 16 | T(RFC) << 8 | T(RC)); 375 timing[1] = (T(WR) + 1 + T(CWL)) << 24 | 376 max_t(u8,T(18), 1) << 16 | 377 (T(WTR) + 1 + T(CWL)) << 8 | 378 (5 + T(CL) - T(CWL)); 379 timing[2] = (T(CWL) - 1) << 24 | 380 (T(RRD) << 16) | 381 (T(RCDWR) << 8) | 382 T(RCDRD); 383 timing[3] = (cur3 & 0x00ff0000) | 384 (0x30 + T(CL)) << 24 | 385 (0xb + T(CL)) << 8 | 386 (T(CL) - 1); 387 timing[4] = T(20) << 24 | 388 T(21) << 16 | 389 T(13) << 8 | 390 T(13); 391 timing[5] = T(RFC) << 24 | 392 max_t(u8,T(RCDRD), T(RCDWR)) << 16 | 393 max_t(u8, (T(CWL) + 6), (T(CL) + 2)) << 8 | 394 T(RP); 395 timing[6] = (0x5a + T(CL)) << 16 | 396 max_t(u8, 1, (6 - T(CL) + T(CWL))) << 8 | 397 (0x50 + T(CL) - T(CWL)); 398 timing[7] = (cur7 & 0xff000000) | 399 ((tUNK_base + T(CL)) << 16) | 400 0x202; 401 timing[8] = cur8 & 0xffffff00; 402 403 switch (ram->base.type) { 404 case NVKM_RAM_TYPE_DDR2: 405 case NVKM_RAM_TYPE_GDDR3: 406 tUNK_40_0 = prevCL - (cur8 & 0xff); 407 if (tUNK_40_0 > 0) 408 timing[8] |= T(CL); 409 break; 410 default: 411 break; 412 } 413 414 nvkm_debug(subdev, "Entry: 220: %08x %08x %08x %08x\n", 415 timing[0], timing[1], timing[2], timing[3]); 416 nvkm_debug(subdev, " 230: %08x %08x %08x %08x\n", 417 timing[4], timing[5], timing[6], timing[7]); 418 nvkm_debug(subdev, " 240: %08x\n", timing[8]); 419 return 0; 420} 421#undef T 422 423static void 424nvkm_sddr2_dll_reset(struct gt215_ramfuc *fuc) 425{ 426 ram_mask(fuc, mr[0], 0x100, 0x100); 427 ram_nsec(fuc, 1000); 428 ram_mask(fuc, mr[0], 0x100, 0x000); 429 ram_nsec(fuc, 1000); 430} 431 432static void 433nvkm_sddr3_dll_disable(struct gt215_ramfuc *fuc, u32 *mr) 434{ 435 u32 mr1_old = ram_rd32(fuc, mr[1]); 436 437 if (!(mr1_old & 0x1)) { 438 ram_wr32(fuc, 0x1002d4, 0x00000001); 439 ram_wr32(fuc, mr[1], mr[1]); 440 ram_nsec(fuc, 1000); 441 } 442} 443 444static void 445nvkm_gddr3_dll_disable(struct gt215_ramfuc *fuc, u32 *mr) 446{ 447 u32 mr1_old = ram_rd32(fuc, mr[1]); 448 449 if (!(mr1_old & 0x40)) { 450 ram_wr32(fuc, mr[1], mr[1]); 451 ram_nsec(fuc, 1000); 452 } 453} 454 455static void 456gt215_ram_lock_pll(struct gt215_ramfuc *fuc, struct gt215_clk_info *mclk) 457{ 458 ram_wr32(fuc, 0x004004, mclk->pll); 459 ram_mask(fuc, 0x004000, 0x00000001, 0x00000001); 460 ram_mask(fuc, 0x004000, 0x00000010, 0x00000000); 461 ram_wait(fuc, 0x004000, 0x00020000, 0x00020000, 64000); 462 ram_mask(fuc, 0x004000, 0x00000010, 0x00000010); 463} 464 465static void 466gt215_ram_gpio(struct gt215_ramfuc *fuc, u8 tag, u32 val) 467{ 468 struct nvkm_gpio *gpio = fuc->base.fb->subdev.device->gpio; 469 struct dcb_gpio_func func; 470 u32 reg, sh, gpio_val; 471 int ret; 472 473 if (nvkm_gpio_get(gpio, 0, tag, DCB_GPIO_UNUSED) != val) { 474 ret = nvkm_gpio_find(gpio, 0, tag, DCB_GPIO_UNUSED, &func); 475 if (ret) 476 return; 477 478 reg = func.line >> 3; 479 sh = (func.line & 0x7) << 2; 480 gpio_val = ram_rd32(fuc, gpio[reg]); 481 if (gpio_val & (8 << sh)) 482 val = !val; 483 if (!(func.log[1] & 1)) 484 val = !val; 485 486 ram_mask(fuc, gpio[reg], (0x3 << sh), ((val | 0x2) << sh)); 487 ram_nsec(fuc, 20000); 488 } 489} 490 491static int 492gt215_ram_calc(struct nvkm_ram *base, u32 freq) 493{ 494 struct gt215_ram *ram = gt215_ram(base); 495 struct gt215_ramfuc *fuc = &ram->fuc; 496 struct gt215_ltrain *train = &ram->ltrain; 497 struct nvkm_subdev *subdev = &ram->base.fb->subdev; 498 struct nvkm_device *device = subdev->device; 499 struct nvkm_bios *bios = device->bios; 500 struct gt215_clk_info mclk; 501 struct nvkm_gpio *gpio = device->gpio; 502 struct nvkm_ram_data *next; 503 u8 ver, hdr, cnt, len, strap; 504 u32 data; 505 u32 r004018, r100760, r100da0, r111100, ctrl; 506 u32 unk714, unk718, unk71c; 507 int ret, i; 508 u32 timing[9]; 509 bool pll2pll; 510 511 next = &ram->base.target; 512 next->freq = freq; 513 ram->base.next = next; 514 515 if (ram->ltrain.state == NVA3_TRAIN_ONCE) 516 gt215_link_train(ram); 517 518 /* lookup memory config data relevant to the target frequency */ 519 data = nvbios_rammapEm(bios, freq / 1000, &ver, &hdr, &cnt, &len, 520 &next->bios); 521 if (!data || ver != 0x10 || hdr < 0x05) { 522 nvkm_error(subdev, "invalid/missing rammap entry\n"); 523 return -EINVAL; 524 } 525 526 /* locate specific data set for the attached memory */ 527 strap = nvbios_ramcfg_index(subdev); 528 if (strap >= cnt) { 529 nvkm_error(subdev, "invalid ramcfg strap\n"); 530 return -EINVAL; 531 } 532 533 data = nvbios_rammapSp(bios, data, ver, hdr, cnt, len, strap, 534 &ver, &hdr, &next->bios); 535 if (!data || ver != 0x10 || hdr < 0x09) { 536 nvkm_error(subdev, "invalid/missing ramcfg entry\n"); 537 return -EINVAL; 538 } 539 540 /* lookup memory timings, if bios says they're present */ 541 if (next->bios.ramcfg_timing != 0xff) { 542 data = nvbios_timingEp(bios, next->bios.ramcfg_timing, 543 &ver, &hdr, &cnt, &len, 544 &next->bios); 545 if (!data || ver != 0x10 || hdr < 0x17) { 546 nvkm_error(subdev, "invalid/missing timing entry\n"); 547 return -EINVAL; 548 } 549 } 550 551 ret = gt215_pll_info(device->clk, 0x12, 0x4000, freq, &mclk); 552 if (ret < 0) { 553 nvkm_error(subdev, "failed mclk calculation\n"); 554 return ret; 555 } 556 557 gt215_ram_timing_calc(ram, timing); 558 559 ret = ram_init(fuc, ram->base.fb); 560 if (ret) 561 return ret; 562 563 /* Determine ram-specific MR values */ 564 ram->base.mr[0] = ram_rd32(fuc, mr[0]); 565 ram->base.mr[1] = ram_rd32(fuc, mr[1]); 566 ram->base.mr[2] = ram_rd32(fuc, mr[2]); 567 568 switch (ram->base.type) { 569 case NVKM_RAM_TYPE_DDR2: 570 ret = nvkm_sddr2_calc(&ram->base); 571 break; 572 case NVKM_RAM_TYPE_DDR3: 573 ret = nvkm_sddr3_calc(&ram->base); 574 break; 575 case NVKM_RAM_TYPE_GDDR3: 576 ret = nvkm_gddr3_calc(&ram->base); 577 break; 578 default: 579 ret = -ENOSYS; 580 break; 581 } 582 583 if (ret) 584 return ret; 585 586 /* XXX: 750MHz seems rather arbitrary */ 587 if (freq <= 750000) { 588 r004018 = 0x10000000; 589 r100760 = 0x22222222; 590 r100da0 = 0x00000010; 591 } else { 592 r004018 = 0x00000000; 593 r100760 = 0x00000000; 594 r100da0 = 0x00000000; 595 } 596 597 if (!next->bios.ramcfg_DLLoff) 598 r004018 |= 0x00004000; 599 600 /* pll2pll requires to switch to a safe clock first */ 601 ctrl = ram_rd32(fuc, 0x004000); 602 pll2pll = (!(ctrl & 0x00000008)) && mclk.pll; 603 604 /* Pre, NVIDIA does this outside the script */ 605 if (next->bios.ramcfg_10_02_10) { 606 ram_mask(fuc, 0x111104, 0x00000600, 0x00000000); 607 } else { 608 ram_mask(fuc, 0x111100, 0x40000000, 0x40000000); 609 ram_mask(fuc, 0x111104, 0x00000180, 0x00000000); 610 } 611 /* Always disable this bit during reclock */ 612 ram_mask(fuc, 0x100200, 0x00000800, 0x00000000); 613 614 /* If switching from non-pll to pll, lock before disabling FB */ 615 if (mclk.pll && !pll2pll) { 616 ram_mask(fuc, 0x004128, 0x003f3141, mclk.clk | 0x00000101); 617 gt215_ram_lock_pll(fuc, &mclk); 618 } 619 620 /* Start with disabling some CRTCs and PFIFO? */ 621 ram_wait_vblank(fuc); 622 ram_wr32(fuc, 0x611200, 0x3300); 623 ram_mask(fuc, 0x002504, 0x1, 0x1); 624 ram_nsec(fuc, 10000); 625 ram_wait(fuc, 0x002504, 0x10, 0x10, 20000); /* XXX: or longer? */ 626 ram_block(fuc); 627 ram_nsec(fuc, 2000); 628 629 if (!next->bios.ramcfg_10_02_10) { 630 if (ram->base.type == NVKM_RAM_TYPE_GDDR3) 631 ram_mask(fuc, 0x111100, 0x04020000, 0x00020000); 632 else 633 ram_mask(fuc, 0x111100, 0x04020000, 0x04020000); 634 } 635 636 /* If we're disabling the DLL, do it now */ 637 switch (next->bios.ramcfg_DLLoff * ram->base.type) { 638 case NVKM_RAM_TYPE_DDR3: 639 nvkm_sddr3_dll_disable(fuc, ram->base.mr); 640 break; 641 case NVKM_RAM_TYPE_GDDR3: 642 nvkm_gddr3_dll_disable(fuc, ram->base.mr); 643 break; 644 } 645 646 if (next->bios.timing_10_ODT) 647 gt215_ram_gpio(fuc, 0x2e, 1); 648 649 /* Brace RAM for impact */ 650 ram_wr32(fuc, 0x1002d4, 0x00000001); 651 ram_wr32(fuc, 0x1002d0, 0x00000001); 652 ram_wr32(fuc, 0x1002d0, 0x00000001); 653 ram_wr32(fuc, 0x100210, 0x00000000); 654 ram_wr32(fuc, 0x1002dc, 0x00000001); 655 ram_nsec(fuc, 2000); 656 657 if (device->chipset == 0xa3 && freq <= 500000) 658 ram_mask(fuc, 0x100700, 0x00000006, 0x00000006); 659 660 /* Alter FBVDD/Q, apparently must be done with PLL disabled, thus 661 * set it to bypass */ 662 if (nvkm_gpio_get(gpio, 0, 0x18, DCB_GPIO_UNUSED) == 663 next->bios.ramcfg_FBVDDQ) { 664 data = ram_rd32(fuc, 0x004000) & 0x9; 665 666 if (data == 0x1) 667 ram_mask(fuc, 0x004000, 0x8, 0x8); 668 if (data & 0x1) 669 ram_mask(fuc, 0x004000, 0x1, 0x0); 670 671 gt215_ram_gpio(fuc, 0x18, !next->bios.ramcfg_FBVDDQ); 672 673 if (data & 0x1) 674 ram_mask(fuc, 0x004000, 0x1, 0x1); 675 } 676 677 /* Fiddle with clocks */ 678 /* There's 4 scenario's 679 * pll->pll: first switch to a 324MHz clock, set up new PLL, switch 680 * clk->pll: Set up new PLL, switch 681 * pll->clk: Set up clock, switch 682 * clk->clk: Overwrite ctrl and other bits, switch */ 683 684 /* Switch to regular clock - 324MHz */ 685 if (pll2pll) { 686 ram_mask(fuc, 0x004000, 0x00000004, 0x00000004); 687 ram_mask(fuc, 0x004168, 0x003f3141, 0x00083101); 688 ram_mask(fuc, 0x004000, 0x00000008, 0x00000008); 689 ram_mask(fuc, 0x1110e0, 0x00088000, 0x00088000); 690 ram_wr32(fuc, 0x004018, 0x00001000); 691 gt215_ram_lock_pll(fuc, &mclk); 692 } 693 694 if (mclk.pll) { 695 ram_mask(fuc, 0x004000, 0x00000105, 0x00000105); 696 ram_wr32(fuc, 0x004018, 0x00001000 | r004018); 697 ram_wr32(fuc, 0x100da0, r100da0); 698 } else { 699 ram_mask(fuc, 0x004168, 0x003f3141, mclk.clk | 0x00000101); 700 ram_mask(fuc, 0x004000, 0x00000108, 0x00000008); 701 ram_mask(fuc, 0x1110e0, 0x00088000, 0x00088000); 702 ram_wr32(fuc, 0x004018, 0x00009000 | r004018); 703 ram_wr32(fuc, 0x100da0, r100da0); 704 } 705 ram_nsec(fuc, 20000); 706 707 if (next->bios.rammap_10_04_08) { 708 ram_wr32(fuc, 0x1005a0, next->bios.ramcfg_10_06 << 16 | 709 next->bios.ramcfg_10_05 << 8 | 710 next->bios.ramcfg_10_05); 711 ram_wr32(fuc, 0x1005a4, next->bios.ramcfg_10_08 << 8 | 712 next->bios.ramcfg_10_07); 713 ram_wr32(fuc, 0x10f804, next->bios.ramcfg_10_09_f0 << 20 | 714 next->bios.ramcfg_10_03_0f << 16 | 715 next->bios.ramcfg_10_09_0f | 716 0x80000000); 717 ram_mask(fuc, 0x10053c, 0x00001000, 0x00000000); 718 } else { 719 if (train->state == NVA3_TRAIN_DONE) { 720 ram_wr32(fuc, 0x100080, 0x1020); 721 ram_mask(fuc, 0x111400, 0xffffffff, train->r_111400); 722 ram_mask(fuc, 0x1111e0, 0xffffffff, train->r_1111e0); 723 ram_mask(fuc, 0x100720, 0xffffffff, train->r_100720); 724 } 725 ram_mask(fuc, 0x10053c, 0x00001000, 0x00001000); 726 ram_mask(fuc, 0x10f804, 0x80000000, 0x00000000); 727 ram_mask(fuc, 0x100760, 0x22222222, r100760); 728 ram_mask(fuc, 0x1007a0, 0x22222222, r100760); 729 ram_mask(fuc, 0x1007e0, 0x22222222, r100760); 730 } 731 732 if (device->chipset == 0xa3 && freq > 500000) { 733 ram_mask(fuc, 0x100700, 0x00000006, 0x00000000); 734 } 735 736 /* Final switch */ 737 if (mclk.pll) { 738 ram_mask(fuc, 0x1110e0, 0x00088000, 0x00011000); 739 ram_mask(fuc, 0x004000, 0x00000008, 0x00000000); 740 } 741 742 ram_wr32(fuc, 0x1002dc, 0x00000000); 743 ram_wr32(fuc, 0x1002d4, 0x00000001); 744 ram_wr32(fuc, 0x100210, 0x80000000); 745 ram_nsec(fuc, 2000); 746 747 /* Set RAM MR parameters and timings */ 748 for (i = 2; i >= 0; i--) { 749 if (ram_rd32(fuc, mr[i]) != ram->base.mr[i]) { 750 ram_wr32(fuc, mr[i], ram->base.mr[i]); 751 ram_nsec(fuc, 1000); 752 } 753 } 754 755 ram_wr32(fuc, 0x100220[3], timing[3]); 756 ram_wr32(fuc, 0x100220[1], timing[1]); 757 ram_wr32(fuc, 0x100220[6], timing[6]); 758 ram_wr32(fuc, 0x100220[7], timing[7]); 759 ram_wr32(fuc, 0x100220[2], timing[2]); 760 ram_wr32(fuc, 0x100220[4], timing[4]); 761 ram_wr32(fuc, 0x100220[5], timing[5]); 762 ram_wr32(fuc, 0x100220[0], timing[0]); 763 ram_wr32(fuc, 0x100220[8], timing[8]); 764 765 /* Misc */ 766 ram_mask(fuc, 0x100200, 0x00001000, !next->bios.ramcfg_10_02_08 << 12); 767 768 /* XXX: A lot of "chipset"/"ram type" specific stuff...? */ 769 unk714 = ram_rd32(fuc, 0x100714) & ~0xf0000130; 770 unk718 = ram_rd32(fuc, 0x100718) & ~0x00000100; 771 unk71c = ram_rd32(fuc, 0x10071c) & ~0x00000100; 772 r111100 = ram_rd32(fuc, 0x111100) & ~0x3a800000; 773 774 /* NVA8 seems to skip various bits related to ramcfg_10_02_04 */ 775 if (device->chipset == 0xa8) { 776 r111100 |= 0x08000000; 777 if (!next->bios.ramcfg_10_02_04) 778 unk714 |= 0x00000010; 779 } else { 780 if (next->bios.ramcfg_10_02_04) { 781 switch (ram->base.type) { 782 case NVKM_RAM_TYPE_DDR2: 783 case NVKM_RAM_TYPE_DDR3: 784 r111100 &= ~0x00000020; 785 if (next->bios.ramcfg_10_02_10) 786 r111100 |= 0x08000004; 787 else 788 r111100 |= 0x00000024; 789 break; 790 default: 791 break; 792 } 793 } else { 794 switch (ram->base.type) { 795 case NVKM_RAM_TYPE_DDR2: 796 case NVKM_RAM_TYPE_DDR3: 797 r111100 &= ~0x00000024; 798 r111100 |= 0x12800000; 799 800 if (next->bios.ramcfg_10_02_10) 801 r111100 |= 0x08000000; 802 unk714 |= 0x00000010; 803 break; 804 case NVKM_RAM_TYPE_GDDR3: 805 r111100 |= 0x30000000; 806 unk714 |= 0x00000020; 807 break; 808 default: 809 break; 810 } 811 } 812 } 813 814 unk714 |= (next->bios.ramcfg_10_04_01) << 8; 815 816 if (next->bios.ramcfg_10_02_20) 817 unk714 |= 0xf0000000; 818 if (next->bios.ramcfg_10_02_02) 819 unk718 |= 0x00000100; 820 if (next->bios.ramcfg_10_02_01) 821 unk71c |= 0x00000100; 822 if (next->bios.timing_10_24 != 0xff) { 823 unk718 &= ~0xf0000000; 824 unk718 |= next->bios.timing_10_24 << 28; 825 } 826 if (next->bios.ramcfg_10_02_10) 827 r111100 &= ~0x04020000; 828 829 ram_mask(fuc, 0x100714, 0xffffffff, unk714); 830 ram_mask(fuc, 0x10071c, 0xffffffff, unk71c); 831 ram_mask(fuc, 0x100718, 0xffffffff, unk718); 832 ram_mask(fuc, 0x111100, 0xffffffff, r111100); 833 834 if (!next->bios.timing_10_ODT) 835 gt215_ram_gpio(fuc, 0x2e, 0); 836 837 /* Reset DLL */ 838 if (!next->bios.ramcfg_DLLoff) 839 nvkm_sddr2_dll_reset(fuc); 840 841 if (ram->base.type == NVKM_RAM_TYPE_GDDR3) { 842 ram_nsec(fuc, 31000); 843 } else { 844 ram_nsec(fuc, 14000); 845 } 846 847 if (ram->base.type == NVKM_RAM_TYPE_DDR3) { 848 ram_wr32(fuc, 0x100264, 0x1); 849 ram_nsec(fuc, 2000); 850 } 851 852 ram_nuke(fuc, 0x100700); 853 ram_mask(fuc, 0x100700, 0x01000000, 0x01000000); 854 ram_mask(fuc, 0x100700, 0x01000000, 0x00000000); 855 856 /* Re-enable FB */ 857 ram_unblock(fuc); 858 ram_wr32(fuc, 0x611200, 0x3330); 859 860 /* Post fiddlings */ 861 if (next->bios.rammap_10_04_02) 862 ram_mask(fuc, 0x100200, 0x00000800, 0x00000800); 863 if (next->bios.ramcfg_10_02_10) { 864 ram_mask(fuc, 0x111104, 0x00000180, 0x00000180); 865 ram_mask(fuc, 0x111100, 0x40000000, 0x00000000); 866 } else { 867 ram_mask(fuc, 0x111104, 0x00000600, 0x00000600); 868 } 869 870 if (mclk.pll) { 871 ram_mask(fuc, 0x004168, 0x00000001, 0x00000000); 872 ram_mask(fuc, 0x004168, 0x00000100, 0x00000000); 873 } else { 874 ram_mask(fuc, 0x004000, 0x00000001, 0x00000000); 875 ram_mask(fuc, 0x004128, 0x00000001, 0x00000000); 876 ram_mask(fuc, 0x004128, 0x00000100, 0x00000000); 877 } 878 879 return 0; 880} 881 882static int 883gt215_ram_prog(struct nvkm_ram *base) 884{ 885 struct gt215_ram *ram = gt215_ram(base); 886 struct gt215_ramfuc *fuc = &ram->fuc; 887 struct nvkm_device *device = ram->base.fb->subdev.device; 888 bool exec = nvkm_boolopt(device->cfgopt, "NvMemExec", true); 889 890 if (exec) { 891 nvkm_mask(device, 0x001534, 0x2, 0x2); 892 893 ram_exec(fuc, true); 894 895 /* Post-processing, avoids flicker */ 896 nvkm_mask(device, 0x002504, 0x1, 0x0); 897 nvkm_mask(device, 0x001534, 0x2, 0x0); 898 899 nvkm_mask(device, 0x616308, 0x10, 0x10); 900 nvkm_mask(device, 0x616b08, 0x10, 0x10); 901 } else { 902 ram_exec(fuc, false); 903 } 904 return 0; 905} 906 907static void 908gt215_ram_tidy(struct nvkm_ram *base) 909{ 910 struct gt215_ram *ram = gt215_ram(base); 911 ram_exec(&ram->fuc, false); 912} 913 914static int 915gt215_ram_init(struct nvkm_ram *base) 916{ 917 struct gt215_ram *ram = gt215_ram(base); 918 gt215_link_train_init(ram); 919 return 0; 920} 921 922static void * 923gt215_ram_dtor(struct nvkm_ram *base) 924{ 925 struct gt215_ram *ram = gt215_ram(base); 926 gt215_link_train_fini(ram); 927 return ram; 928} 929 930static const struct nvkm_ram_func 931gt215_ram_func = { 932 .dtor = gt215_ram_dtor, 933 .init = gt215_ram_init, 934 .calc = gt215_ram_calc, 935 .prog = gt215_ram_prog, 936 .tidy = gt215_ram_tidy, 937}; 938 939int 940gt215_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) 941{ 942 struct gt215_ram *ram; 943 int ret, i; 944 945 if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL))) 946 return -ENOMEM; 947 *pram = &ram->base; 948 949 ret = nv50_ram_ctor(>215_ram_func, fb, &ram->base); 950 if (ret) 951 return ret; 952 953 ram->fuc.r_0x001610 = ramfuc_reg(0x001610); 954 ram->fuc.r_0x001700 = ramfuc_reg(0x001700); 955 ram->fuc.r_0x002504 = ramfuc_reg(0x002504); 956 ram->fuc.r_0x004000 = ramfuc_reg(0x004000); 957 ram->fuc.r_0x004004 = ramfuc_reg(0x004004); 958 ram->fuc.r_0x004018 = ramfuc_reg(0x004018); 959 ram->fuc.r_0x004128 = ramfuc_reg(0x004128); 960 ram->fuc.r_0x004168 = ramfuc_reg(0x004168); 961 ram->fuc.r_0x100080 = ramfuc_reg(0x100080); 962 ram->fuc.r_0x100200 = ramfuc_reg(0x100200); 963 ram->fuc.r_0x100210 = ramfuc_reg(0x100210); 964 for (i = 0; i < 9; i++) 965 ram->fuc.r_0x100220[i] = ramfuc_reg(0x100220 + (i * 4)); 966 ram->fuc.r_0x100264 = ramfuc_reg(0x100264); 967 ram->fuc.r_0x1002d0 = ramfuc_reg(0x1002d0); 968 ram->fuc.r_0x1002d4 = ramfuc_reg(0x1002d4); 969 ram->fuc.r_0x1002dc = ramfuc_reg(0x1002dc); 970 ram->fuc.r_0x10053c = ramfuc_reg(0x10053c); 971 ram->fuc.r_0x1005a0 = ramfuc_reg(0x1005a0); 972 ram->fuc.r_0x1005a4 = ramfuc_reg(0x1005a4); 973 ram->fuc.r_0x100700 = ramfuc_reg(0x100700); 974 ram->fuc.r_0x100714 = ramfuc_reg(0x100714); 975 ram->fuc.r_0x100718 = ramfuc_reg(0x100718); 976 ram->fuc.r_0x10071c = ramfuc_reg(0x10071c); 977 ram->fuc.r_0x100720 = ramfuc_reg(0x100720); 978 ram->fuc.r_0x100760 = ramfuc_stride(0x100760, 4, ram->base.part_mask); 979 ram->fuc.r_0x1007a0 = ramfuc_stride(0x1007a0, 4, ram->base.part_mask); 980 ram->fuc.r_0x1007e0 = ramfuc_stride(0x1007e0, 4, ram->base.part_mask); 981 ram->fuc.r_0x100da0 = ramfuc_stride(0x100da0, 4, ram->base.part_mask); 982 ram->fuc.r_0x10f804 = ramfuc_reg(0x10f804); 983 ram->fuc.r_0x1110e0 = ramfuc_stride(0x1110e0, 4, ram->base.part_mask); 984 ram->fuc.r_0x111100 = ramfuc_reg(0x111100); 985 ram->fuc.r_0x111104 = ramfuc_reg(0x111104); 986 ram->fuc.r_0x1111e0 = ramfuc_reg(0x1111e0); 987 ram->fuc.r_0x111400 = ramfuc_reg(0x111400); 988 ram->fuc.r_0x611200 = ramfuc_reg(0x611200); 989 990 if (ram->base.ranks > 1) { 991 ram->fuc.r_mr[0] = ramfuc_reg2(0x1002c0, 0x1002c8); 992 ram->fuc.r_mr[1] = ramfuc_reg2(0x1002c4, 0x1002cc); 993 ram->fuc.r_mr[2] = ramfuc_reg2(0x1002e0, 0x1002e8); 994 ram->fuc.r_mr[3] = ramfuc_reg2(0x1002e4, 0x1002ec); 995 } else { 996 ram->fuc.r_mr[0] = ramfuc_reg(0x1002c0); 997 ram->fuc.r_mr[1] = ramfuc_reg(0x1002c4); 998 ram->fuc.r_mr[2] = ramfuc_reg(0x1002e0); 999 ram->fuc.r_mr[3] = ramfuc_reg(0x1002e4); 1000 } 1001 ram->fuc.r_gpio[0] = ramfuc_reg(0x00e104); 1002 ram->fuc.r_gpio[1] = ramfuc_reg(0x00e108); 1003 ram->fuc.r_gpio[2] = ramfuc_reg(0x00e120); 1004 ram->fuc.r_gpio[3] = ramfuc_reg(0x00e124); 1005 1006 return 0; 1007} 1008