kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgf100.c

   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  */
  24 #define gf100_ram(p) container_of((p), struct gf100_ram, base)
  25 #include "ram.h"
  26 #include "ramfuc.h"
  27
  28 #include <core/option.h>
  29 #include <subdev/bios.h>
  30 #include <subdev/bios/pll.h>
  31 #include <subdev/bios/rammap.h>
  32 #include <subdev/bios/timing.h>
  33 #include <subdev/clk.h>
  34 #include <subdev/clk/pll.h>
  35 #include <subdev/ltc.h>
  36
  37 struct gf100_ramfuc {
  38         struct ramfuc base;
  39
  40         struct ramfuc_reg r_0x10fe20;
  41         struct ramfuc_reg r_0x10fe24;
  42         struct ramfuc_reg r_0x137320;
  43         struct ramfuc_reg r_0x137330;
  44
  45         struct ramfuc_reg r_0x132000;
  46         struct ramfuc_reg r_0x132004;
  47         struct ramfuc_reg r_0x132100;
  48
  49         struct ramfuc_reg r_0x137390;
  50
  51         struct ramfuc_reg r_0x10f290;
  52         struct ramfuc_reg r_0x10f294;
  53         struct ramfuc_reg r_0x10f298;
  54         struct ramfuc_reg r_0x10f29c;
  55         struct ramfuc_reg r_0x10f2a0;
  56
  57         struct ramfuc_reg r_0x10f300;
  58         struct ramfuc_reg r_0x10f338;
  59         struct ramfuc_reg r_0x10f340;
  60         struct ramfuc_reg r_0x10f344;
  61         struct ramfuc_reg r_0x10f348;
  62
  63         struct ramfuc_reg r_0x10f910;
  64         struct ramfuc_reg r_0x10f914;
  65
  66         struct ramfuc_reg r_0x100b0c;
  67         struct ramfuc_reg r_0x10f050;
  68         struct ramfuc_reg r_0x10f090;
  69         struct ramfuc_reg r_0x10f200;
  70         struct ramfuc_reg r_0x10f210;
  71         struct ramfuc_reg r_0x10f310;
  72         struct ramfuc_reg r_0x10f314;
  73         struct ramfuc_reg r_0x10f610;
  74         struct ramfuc_reg r_0x10f614;
  75         struct ramfuc_reg r_0x10f800;
  76         struct ramfuc_reg r_0x10f808;
  77         struct ramfuc_reg r_0x10f824;
  78         struct ramfuc_reg r_0x10f830;
  79         struct ramfuc_reg r_0x10f988;
  80         struct ramfuc_reg r_0x10f98c;
  81         struct ramfuc_reg r_0x10f990;
  82         struct ramfuc_reg r_0x10f998;
  83         struct ramfuc_reg r_0x10f9b0;
  84         struct ramfuc_reg r_0x10f9b4;
  85         struct ramfuc_reg r_0x10fb04;
  86         struct ramfuc_reg r_0x10fb08;
  87         struct ramfuc_reg r_0x137300;
  88         struct ramfuc_reg r_0x137310;
  89         struct ramfuc_reg r_0x137360;
  90         struct ramfuc_reg r_0x1373ec;
  91         struct ramfuc_reg r_0x1373f0;
  92         struct ramfuc_reg r_0x1373f8;
  93
  94         struct ramfuc_reg r_0x61c140;
  95         struct ramfuc_reg r_0x611200;
  96
  97         struct ramfuc_reg r_0x13d8f4;
  98 };
  99
 100 struct gf100_ram {
 101         struct nvkm_ram base;
 102         struct gf100_ramfuc fuc;
 103         struct nvbios_pll refpll;
 104         struct nvbios_pll mempll;
 105 };
 106
 107 static void
 108 gf100_ram_train(struct gf100_ramfuc *fuc, u32 magic)
 109 {
 110         struct gf100_ram *ram = container_of(fuc, typeof(*ram), fuc);
 111         struct nvkm_fb *fb = ram->base.fb;
 112         struct nvkm_device *device = fb->subdev.device;
 113         u32 part = nvkm_rd32(device, 0x022438), i;
 114         u32 mask = nvkm_rd32(device, 0x022554);
 115         u32 addr = 0x110974;
 116
 117         ram_wr32(fuc, 0x10f910, magic);
 118         ram_wr32(fuc, 0x10f914, magic);
 119
 120         for (i = 0; (magic & 0x80000000) && i < part; addr += 0x1000, i++) {
 121                 if (mask & (1 << i))
 122                         continue;
 123                 ram_wait(fuc, addr, 0x0000000f, 0x00000000, 500000);
 124         }
 125 }
 126
 127 static int
 128 gf100_ram_calc(struct nvkm_ram *base, u32 freq)
 129 {
 130         struct gf100_ram *ram = gf100_ram(base);
 131         struct gf100_ramfuc *fuc = &ram->fuc;
 132         struct nvkm_subdev *subdev = &ram->base.fb->subdev;
 133         struct nvkm_device *device = subdev->device;
 134         struct nvkm_clk *clk = device->clk;
 135         struct nvkm_bios *bios = device->bios;
 136         struct nvbios_ramcfg cfg;
 137         u8  ver, cnt, len, strap;
 138         struct {
 139                 u32 data;
 140                 u8  size;
 141         } rammap, ramcfg, timing;
 142         int ref, div, out;
 143         int from, mode;
 144         int N1, M1, P;
 145         int ret;
 146
 147         /* lookup memory config data relevant to the target frequency */
 148         rammap.data = nvbios_rammapEm(bios, freq / 1000, &ver, &rammap.size,
 149                                       &cnt, &ramcfg.size, &cfg);
 150         if (!rammap.data || ver != 0x10 || rammap.size < 0x0e) {
 151                 nvkm_error(subdev, "invalid/missing rammap entry\n");
 152                 return -EINVAL;
 153         }
 154
 155         /* locate specific data set for the attached memory */
 156         strap = nvbios_ramcfg_index(subdev);
 157         if (strap >= cnt) {
 158                 nvkm_error(subdev, "invalid ramcfg strap\n");
 159                 return -EINVAL;
 160         }
 161
 162         ramcfg.data = rammap.data + rammap.size + (strap * ramcfg.size);
 163         if (!ramcfg.data || ver != 0x10 || ramcfg.size < 0x0e) {
 164                 nvkm_error(subdev, "invalid/missing ramcfg entry\n");
 165                 return -EINVAL;
 166         }
 167
 168         /* lookup memory timings, if bios says they're present */
 169         strap = nvbios_rd08(bios, ramcfg.data + 0x01);
 170         if (strap != 0xff) {
 171                 timing.data = nvbios_timingEe(bios, strap, &ver, &timing.size,
 172                                               &cnt, &len);
 173                 if (!timing.data || ver != 0x10 || timing.size < 0x19) {
 174                         nvkm_error(subdev, "invalid/missing timing entry\n");
 175                         return -EINVAL;
 176                 }
 177         } else {
 178                 timing.data = 0;
 179         }
 180
 181         ret = ram_init(fuc, ram->base.fb);
 182         if (ret)
 183                 return ret;
 184
 185         /* determine current mclk configuration */
 186         from = !!(ram_rd32(fuc, 0x1373f0) & 0x00000002); /*XXX: ok? */
 187
 188         /* determine target mclk configuration */
 189         if (!(ram_rd32(fuc, 0x137300) & 0x00000100))
 190                 ref = nvkm_clk_read(clk, nv_clk_src_sppll0);
 191         else
 192                 ref = nvkm_clk_read(clk, nv_clk_src_sppll1);
 193         div = max(min((ref * 2) / freq, (u32)65), (u32)2) - 2;
 194         out = (ref * 2) / (div + 2);
 195         mode = freq != out;
 196
 197         ram_mask(fuc, 0x137360, 0x00000002, 0x00000000);
 198
 199         if ((ram_rd32(fuc, 0x132000) & 0x00000002) || 0 /*XXX*/) {
 200                 ram_nuke(fuc, 0x132000);
 201                 ram_mask(fuc, 0x132000, 0x00000002, 0x00000002);
 202                 ram_mask(fuc, 0x132000, 0x00000002, 0x00000000);
 203         }
 204
 205         if (mode == 1) {
 206                 ram_nuke(fuc, 0x10fe20);
 207                 ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000002);
 208                 ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000000);
 209         }
 210
 211 // 0x00020034 // 0x0000000a
 212         ram_wr32(fuc, 0x132100, 0x00000001);
 213
 214         if (mode == 1 && from == 0) {
 215                 /* calculate refpll */
 216                 ret = gt215_pll_calc(subdev, &ram->refpll, ram->mempll.refclk,
 217                                      &N1, NULL, &M1, &P);
 218                 if (ret <= 0) {
 219                         nvkm_error(subdev, "unable to calc refpll\n");
 220                         return ret ? ret : -ERANGE;
 221                 }
 222
 223                 ram_wr32(fuc, 0x10fe20, 0x20010000);
 224                 ram_wr32(fuc, 0x137320, 0x00000003);
 225                 ram_wr32(fuc, 0x137330, 0x81200006);
 226                 ram_wr32(fuc, 0x10fe24, (P << 16) | (N1 << 8) | M1);
 227                 ram_wr32(fuc, 0x10fe20, 0x20010001);
 228                 ram_wait(fuc, 0x137390, 0x00020000, 0x00020000, 64000);
 229
 230                 /* calculate mempll */
 231                 ret = gt215_pll_calc(subdev, &ram->mempll, freq,
 232                                      &N1, NULL, &M1, &P);
 233                 if (ret <= 0) {
 234                         nvkm_error(subdev, "unable to calc refpll\n");
 235                         return ret ? ret : -ERANGE;
 236                 }
 237
 238                 ram_wr32(fuc, 0x10fe20, 0x20010005);
 239                 ram_wr32(fuc, 0x132004, (P << 16) | (N1 << 8) | M1);
 240                 ram_wr32(fuc, 0x132000, 0x18010101);
 241                 ram_wait(fuc, 0x137390, 0x00000002, 0x00000002, 64000);
 242         } else
 243         if (mode == 0) {
 244                 ram_wr32(fuc, 0x137300, 0x00000003);
 245         }
 246
 247         if (from == 0) {
 248                 ram_nuke(fuc, 0x10fb04);
 249                 ram_mask(fuc, 0x10fb04, 0x0000ffff, 0x00000000);
 250                 ram_nuke(fuc, 0x10fb08);
 251                 ram_mask(fuc, 0x10fb08, 0x0000ffff, 0x00000000);
 252                 ram_wr32(fuc, 0x10f988, 0x2004ff00);
 253                 ram_wr32(fuc, 0x10f98c, 0x003fc040);
 254                 ram_wr32(fuc, 0x10f990, 0x20012001);
 255                 ram_wr32(fuc, 0x10f998, 0x00011a00);
 256                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 257         } else {
 258                 ram_wr32(fuc, 0x10f988, 0x20010000);
 259                 ram_wr32(fuc, 0x10f98c, 0x00000000);
 260                 ram_wr32(fuc, 0x10f990, 0x20012001);
 261                 ram_wr32(fuc, 0x10f998, 0x00010a00);
 262         }
 263
 264         if (from == 0) {
 265 // 0x00020039 // 0x000000ba
 266         }
 267
 268 // 0x0002003a // 0x00000002
 269         ram_wr32(fuc, 0x100b0c, 0x00080012);
 270 // 0x00030014 // 0x00000000 // 0x02b5f070
 271 // 0x00030014 // 0x00010000 // 0x02b5f070
 272         ram_wr32(fuc, 0x611200, 0x00003300);
 273 // 0x00020034 // 0x0000000a
 274 // 0x00030020 // 0x00000001 // 0x00000000
 275
 276         ram_mask(fuc, 0x10f200, 0x00000800, 0x00000000);
 277         ram_wr32(fuc, 0x10f210, 0x00000000);
 278         ram_nsec(fuc, 1000);
 279         if (mode == 0)
 280                 gf100_ram_train(fuc, 0x000c1001);
 281         ram_wr32(fuc, 0x10f310, 0x00000001);
 282         ram_nsec(fuc, 1000);
 283         ram_wr32(fuc, 0x10f090, 0x00000061);
 284         ram_wr32(fuc, 0x10f090, 0xc000007f);
 285         ram_nsec(fuc, 1000);
 286
 287         if (from == 0) {
 288                 ram_wr32(fuc, 0x10f824, 0x00007fd4);
 289         } else {
 290                 ram_wr32(fuc, 0x1373ec, 0x00020404);
 291         }
 292
 293         if (mode == 0) {
 294                 ram_mask(fuc, 0x10f808, 0x00080000, 0x00000000);
 295                 ram_mask(fuc, 0x10f200, 0x00008000, 0x00008000);
 296                 ram_wr32(fuc, 0x10f830, 0x41500010);
 297                 ram_mask(fuc, 0x10f830, 0x01000000, 0x00000000);
 298                 ram_mask(fuc, 0x132100, 0x00000100, 0x00000100);
 299                 ram_wr32(fuc, 0x10f050, 0xff000090);
 300                 ram_wr32(fuc, 0x1373ec, 0x00020f0f);
 301                 ram_wr32(fuc, 0x1373f0, 0x00000003);
 302                 ram_wr32(fuc, 0x137310, 0x81201616);
 303                 ram_wr32(fuc, 0x132100, 0x00000001);
 304 // 0x00020039 // 0x000000ba
 305                 ram_wr32(fuc, 0x10f830, 0x00300017);
 306                 ram_wr32(fuc, 0x1373f0, 0x00000001);
 307                 ram_wr32(fuc, 0x10f824, 0x00007e77);
 308                 ram_wr32(fuc, 0x132000, 0x18030001);
 309                 ram_wr32(fuc, 0x10f090, 0x4000007e);
 310                 ram_nsec(fuc, 2000);
 311                 ram_wr32(fuc, 0x10f314, 0x00000001);
 312                 ram_wr32(fuc, 0x10f210, 0x80000000);
 313                 ram_wr32(fuc, 0x10f338, 0x00300220);
 314                 ram_wr32(fuc, 0x10f300, 0x0000011d);
 315                 ram_nsec(fuc, 1000);
 316                 ram_wr32(fuc, 0x10f290, 0x02060505);
 317                 ram_wr32(fuc, 0x10f294, 0x34208288);
 318                 ram_wr32(fuc, 0x10f298, 0x44050411);
 319                 ram_wr32(fuc, 0x10f29c, 0x0000114c);
 320                 ram_wr32(fuc, 0x10f2a0, 0x42e10069);
 321                 ram_wr32(fuc, 0x10f614, 0x40044f77);
 322                 ram_wr32(fuc, 0x10f610, 0x40044f77);
 323                 ram_wr32(fuc, 0x10f344, 0x00600009);
 324                 ram_nsec(fuc, 1000);
 325                 ram_wr32(fuc, 0x10f348, 0x00700008);
 326                 ram_wr32(fuc, 0x61c140, 0x19240000);
 327                 ram_wr32(fuc, 0x10f830, 0x00300017);
 328                 gf100_ram_train(fuc, 0x80021001);
 329                 gf100_ram_train(fuc, 0x80081001);
 330                 ram_wr32(fuc, 0x10f340, 0x00500004);
 331                 ram_nsec(fuc, 1000);
 332                 ram_wr32(fuc, 0x10f830, 0x01300017);
 333                 ram_wr32(fuc, 0x10f830, 0x00300017);
 334 // 0x00030020 // 0x00000000 // 0x00000000
 335 // 0x00020034 // 0x0000000b
 336                 ram_wr32(fuc, 0x100b0c, 0x00080028);
 337                 ram_wr32(fuc, 0x611200, 0x00003330);
 338         } else {
 339                 ram_wr32(fuc, 0x10f800, 0x00001800);
 340                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 341                 ram_wr32(fuc, 0x1373ec, 0x00020404);
 342                 ram_wr32(fuc, 0x1373f0, 0x00000003);
 343                 ram_wr32(fuc, 0x10f830, 0x40700010);
 344                 ram_wr32(fuc, 0x10f830, 0x40500010);
 345                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 346                 ram_wr32(fuc, 0x1373f8, 0x00000000);
 347                 ram_wr32(fuc, 0x132100, 0x00000101);
 348                 ram_wr32(fuc, 0x137310, 0x89201616);
 349                 ram_wr32(fuc, 0x10f050, 0xff000090);
 350                 ram_wr32(fuc, 0x1373ec, 0x00030404);
 351                 ram_wr32(fuc, 0x1373f0, 0x00000002);
 352         // 0x00020039 // 0x00000011
 353                 ram_wr32(fuc, 0x132100, 0x00000001);
 354                 ram_wr32(fuc, 0x1373f8, 0x00002000);
 355                 ram_nsec(fuc, 2000);
 356                 ram_wr32(fuc, 0x10f808, 0x7aaa0050);
 357                 ram_wr32(fuc, 0x10f830, 0x00500010);
 358                 ram_wr32(fuc, 0x10f200, 0x00ce1000);
 359                 ram_wr32(fuc, 0x10f090, 0x4000007e);
 360                 ram_nsec(fuc, 2000);
 361                 ram_wr32(fuc, 0x10f314, 0x00000001);
 362                 ram_wr32(fuc, 0x10f210, 0x80000000);
 363                 ram_wr32(fuc, 0x10f338, 0x00300200);
 364                 ram_wr32(fuc, 0x10f300, 0x0000084d);
 365                 ram_nsec(fuc, 1000);
 366                 ram_wr32(fuc, 0x10f290, 0x0b343825);
 367                 ram_wr32(fuc, 0x10f294, 0x3483028e);
 368                 ram_wr32(fuc, 0x10f298, 0x440c0600);
 369                 ram_wr32(fuc, 0x10f29c, 0x0000214c);
 370                 ram_wr32(fuc, 0x10f2a0, 0x42e20069);
 371                 ram_wr32(fuc, 0x10f200, 0x00ce0000);
 372                 ram_wr32(fuc, 0x10f614, 0x60044e77);
 373                 ram_wr32(fuc, 0x10f610, 0x60044e77);
 374                 ram_wr32(fuc, 0x10f340, 0x00500000);
 375                 ram_nsec(fuc, 1000);
 376                 ram_wr32(fuc, 0x10f344, 0x00600228);
 377                 ram_nsec(fuc, 1000);
 378                 ram_wr32(fuc, 0x10f348, 0x00700000);
 379                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 380                 ram_wr32(fuc, 0x61c140, 0x09a40000);
 381
 382                 gf100_ram_train(fuc, 0x800e1008);
 383
 384                 ram_nsec(fuc, 1000);
 385                 ram_wr32(fuc, 0x10f800, 0x00001804);
 386         // 0x00030020 // 0x00000000 // 0x00000000
 387         // 0x00020034 // 0x0000000b
 388                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 389                 ram_wr32(fuc, 0x100b0c, 0x00080028);
 390                 ram_wr32(fuc, 0x611200, 0x00003330);
 391                 ram_nsec(fuc, 100000);
 392                 ram_wr32(fuc, 0x10f9b0, 0x05313f41);
 393                 ram_wr32(fuc, 0x10f9b4, 0x00002f50);
 394
 395                 gf100_ram_train(fuc, 0x010c1001);
 396         }
 397
 398         ram_mask(fuc, 0x10f200, 0x00000800, 0x00000800);
 399 // 0x00020016 // 0x00000000
 400
 401         if (mode == 0)
 402                 ram_mask(fuc, 0x132000, 0x00000001, 0x00000000);
 403
 404         return 0;
 405 }
 406
 407 static int
 408 gf100_ram_prog(struct nvkm_ram *base)
 409 {
 410         struct gf100_ram *ram = gf100_ram(base);
 411         struct nvkm_device *device = ram->base.fb->subdev.device;
 412         ram_exec(&ram->fuc, nvkm_boolopt(device->cfgopt, "NvMemExec", true));
 413         return 0;
 414 }
 415
 416 static void
 417 gf100_ram_tidy(struct nvkm_ram *base)
 418 {
 419         struct gf100_ram *ram = gf100_ram(base);
 420         ram_exec(&ram->fuc, false);
 421 }
 422
 423 extern const u8 gf100_pte_storage_type_map[256];
 424
 425 void
 426 gf100_ram_put(struct nvkm_ram *ram, struct nvkm_mem **pmem)
 427 {
 428         struct nvkm_ltc *ltc = ram->fb->subdev.device->ltc;
 429         struct nvkm_mem *mem = *pmem;
 430
 431         *pmem = NULL;
 432         if (unlikely(mem == NULL))
 433                 return;
 434
 435         mutex_lock(&ram->fb->subdev.mutex);
 436         if (mem->tag)
 437                 nvkm_ltc_tags_free(ltc, &mem->tag);
 438         __nv50_ram_put(ram, mem);
 439         mutex_unlock(&ram->fb->subdev.mutex);
 440
 441         kfree(mem);
 442 }
 443
 444 int
 445 gf100_ram_get(struct nvkm_ram *ram, u64 size, u32 align, u32 ncmin,
 446               u32 memtype, struct nvkm_mem **pmem)
 447 {
 448         struct nvkm_ltc *ltc = ram->fb->subdev.device->ltc;
 449         struct nvkm_mm *mm = &ram->vram;
 450         struct nvkm_mm_node *r;
 451         struct nvkm_mem *mem;
 452         int type = (memtype & 0x0ff);
 453         int back = (memtype & 0x800);
 454         const bool comp = gf100_pte_storage_type_map[type] != type;
 455         int ret;
 456
 457         size  >>= NVKM_RAM_MM_SHIFT;
 458         align >>= NVKM_RAM_MM_SHIFT;
 459         ncmin >>= NVKM_RAM_MM_SHIFT;
 460         if (!ncmin)
 461                 ncmin = size;
 462
 463         mem = kzalloc(sizeof(*mem), GFP_KERNEL);
 464         if (!mem)
 465                 return -ENOMEM;
 466
 467         INIT_LIST_HEAD(&mem->regions);
 468         mem->size = size;
 469
 470         mutex_lock(&ram->fb->subdev.mutex);
 471         if (comp) {
 472                 /* compression only works with lpages */
 473                 if (align == (1 << (17 - NVKM_RAM_MM_SHIFT))) {
 474                         int n = size >> 5;
 475                         nvkm_ltc_tags_alloc(ltc, n, &mem->tag);
 476                 }
 477
 478                 if (unlikely(!mem->tag))
 479                         type = gf100_pte_storage_type_map[type];
 480         }
 481         mem->memtype = type;
 482
 483         do {
 484                 if (back)
 485                         ret = nvkm_mm_tail(mm, 0, 1, size, ncmin, align, &r);
 486                 else
 487                         ret = nvkm_mm_head(mm, 0, 1, size, ncmin, align, &r);
 488                 if (ret) {
 489                         mutex_unlock(&ram->fb->subdev.mutex);
 490                         ram->func->put(ram, &mem);
 491                         return ret;
 492                 }
 493
 494                 list_add_tail(&r->rl_entry, &mem->regions);
 495                 size -= r->length;
 496         } while (size);
 497         mutex_unlock(&ram->fb->subdev.mutex);
 498
 499         r = list_first_entry(&mem->regions, struct nvkm_mm_node, rl_entry);
 500         mem->offset = (u64)r->offset << NVKM_RAM_MM_SHIFT;
 501         *pmem = mem;
 502         return 0;
 503 }
 504
 505 static int
 506 gf100_ram_init(struct nvkm_ram *base)
 507 {
 508         static const u8  train0[] = {
 509                 0x00, 0xff, 0x55, 0xaa, 0x33, 0xcc,
 510                 0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
 511         };
 512         static const u32 train1[] = {
 513                 0x00000000, 0xffffffff,
 514                 0x55555555, 0xaaaaaaaa,
 515                 0x33333333, 0xcccccccc,
 516                 0xf0f0f0f0, 0x0f0f0f0f,
 517                 0x00ff00ff, 0xff00ff00,
 518                 0x0000ffff, 0xffff0000,
 519         };
 520         struct gf100_ram *ram = gf100_ram(base);
 521         struct nvkm_device *device = ram->base.fb->subdev.device;
 522         int i;
 523
 524         switch (ram->base.type) {
 525         case NVKM_RAM_TYPE_GDDR5:
 526                 break;
 527         default:
 528                 return 0;
 529         }
 530
 531         /* prepare for ddr link training, and load training patterns */
 532         for (i = 0; i < 0x30; i++) {
 533                 nvkm_wr32(device, 0x10f968, 0x00000000 | (i << 8));
 534                 nvkm_wr32(device, 0x10f96c, 0x00000000 | (i << 8));
 535                 nvkm_wr32(device, 0x10f920, 0x00000100 | train0[i % 12]);
 536                 nvkm_wr32(device, 0x10f924, 0x00000100 | train0[i % 12]);
 537                 nvkm_wr32(device, 0x10f918,              train1[i % 12]);
 538                 nvkm_wr32(device, 0x10f91c,              train1[i % 12]);
 539                 nvkm_wr32(device, 0x10f920, 0x00000000 | train0[i % 12]);
 540                 nvkm_wr32(device, 0x10f924, 0x00000000 | train0[i % 12]);
 541                 nvkm_wr32(device, 0x10f918,              train1[i % 12]);
 542                 nvkm_wr32(device, 0x10f91c,              train1[i % 12]);
 543         }
 544
 545         return 0;
 546 }
 547
 548 static const struct nvkm_ram_func
 549 gf100_ram_func = {
 550         .init = gf100_ram_init,
 551         .get = gf100_ram_get,
 552         .put = gf100_ram_put,
 553         .calc = gf100_ram_calc,
 554         .prog = gf100_ram_prog,
 555         .tidy = gf100_ram_tidy,
 556 };
 557
 558 int
 559 gf100_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
 560                u32 maskaddr, struct nvkm_ram *ram)
 561 {
 562         struct nvkm_subdev *subdev = &fb->subdev;
 563         struct nvkm_device *device = subdev->device;
 564         struct nvkm_bios *bios = device->bios;
 565         const u32 rsvd_head = ( 256 * 1024); /* vga memory */
 566         const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
 567         u32 parts = nvkm_rd32(device, 0x022438);
 568         u32 pmask = nvkm_rd32(device, maskaddr);
 569         u64 bsize = (u64)nvkm_rd32(device, 0x10f20c) << 20;
 570         u64 psize, size = 0;
 571         enum nvkm_ram_type type = nvkm_fb_bios_memtype(bios);
 572         bool uniform = true;
 573         int ret, i;
 574
 575         nvkm_debug(subdev, "100800: %08x\n", nvkm_rd32(device, 0x100800));
 576         nvkm_debug(subdev, "parts %08x mask %08x\n", parts, pmask);
 577
 578         /* read amount of vram attached to each memory controller */
 579         for (i = 0; i < parts; i++) {
 580                 if (pmask & (1 << i))
 581                         continue;
 582
 583                 psize = (u64)nvkm_rd32(device, 0x11020c + (i * 0x1000)) << 20;
 584                 if (psize != bsize) {
 585                         if (psize < bsize)
 586                                 bsize = psize;
 587                         uniform = false;
 588                 }
 589
 590                 nvkm_debug(subdev, "%d: %d MiB\n", i, (u32)(psize >> 20));
 591                 size += psize;
 592         }
 593
 594         ret = nvkm_ram_ctor(func, fb, type, size, 0, ram);
 595         if (ret)
 596                 return ret;
 597
 598         nvkm_mm_fini(&ram->vram);
 599
 600         /* if all controllers have the same amount attached, there's no holes */
 601         if (uniform) {
 602                 ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
 603                                    (size - rsvd_head - rsvd_tail) >>
 604                                    NVKM_RAM_MM_SHIFT, 1);
 605                 if (ret)
 606                         return ret;
 607         } else {
 608                 /* otherwise, address lowest common amount from 0GiB */
 609                 ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
 610                                    ((bsize * parts) - rsvd_head) >>
 611                                    NVKM_RAM_MM_SHIFT, 1);
 612                 if (ret)
 613                         return ret;
 614
 615                 /* and the rest starting from (8GiB + common_size) */
 616                 ret = nvkm_mm_init(&ram->vram, (0x0200000000ULL + bsize) >>
 617                                    NVKM_RAM_MM_SHIFT,
 618                                    (size - (bsize * parts) - rsvd_tail) >>
 619                                    NVKM_RAM_MM_SHIFT, 1);
 620                 if (ret)
 621                         return ret;
 622         }
 623
 624         ram->ranks = (nvkm_rd32(device, 0x10f200) & 0x00000004) ? 2 : 1;
 625         return 0;
 626 }
 627
 628 int
 629 gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
 630 {
 631         struct nvkm_subdev *subdev = &fb->subdev;
 632         struct nvkm_bios *bios = subdev->device->bios;
 633         struct gf100_ram *ram;
 634         int ret;
 635
 636         if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL)))
 637                 return -ENOMEM;
 638         *pram = &ram->base;
 639
 640         ret = gf100_ram_ctor(&gf100_ram_func, fb, 0x022554, &ram->base);
 641         if (ret)
 642                 return ret;
 643
 644         ret = nvbios_pll_parse(bios, 0x0c, &ram->refpll);
 645         if (ret) {
 646                 nvkm_error(subdev, "mclk refpll data not found\n");
 647                 return ret;
 648         }
 649
 650         ret = nvbios_pll_parse(bios, 0x04, &ram->mempll);
 651         if (ret) {
 652                 nvkm_error(subdev, "mclk pll data not found\n");
 653                 return ret;
 654         }
 655
 656         ram->fuc.r_0x10fe20 = ramfuc_reg(0x10fe20);
 657         ram->fuc.r_0x10fe24 = ramfuc_reg(0x10fe24);
 658         ram->fuc.r_0x137320 = ramfuc_reg(0x137320);
 659         ram->fuc.r_0x137330 = ramfuc_reg(0x137330);
 660
 661         ram->fuc.r_0x132000 = ramfuc_reg(0x132000);
 662         ram->fuc.r_0x132004 = ramfuc_reg(0x132004);
 663         ram->fuc.r_0x132100 = ramfuc_reg(0x132100);
 664
 665         ram->fuc.r_0x137390 = ramfuc_reg(0x137390);
 666
 667         ram->fuc.r_0x10f290 = ramfuc_reg(0x10f290);
 668         ram->fuc.r_0x10f294 = ramfuc_reg(0x10f294);
 669         ram->fuc.r_0x10f298 = ramfuc_reg(0x10f298);
 670         ram->fuc.r_0x10f29c = ramfuc_reg(0x10f29c);
 671         ram->fuc.r_0x10f2a0 = ramfuc_reg(0x10f2a0);
 672
 673         ram->fuc.r_0x10f300 = ramfuc_reg(0x10f300);
 674         ram->fuc.r_0x10f338 = ramfuc_reg(0x10f338);
 675         ram->fuc.r_0x10f340 = ramfuc_reg(0x10f340);
 676         ram->fuc.r_0x10f344 = ramfuc_reg(0x10f344);
 677         ram->fuc.r_0x10f348 = ramfuc_reg(0x10f348);
 678
 679         ram->fuc.r_0x10f910 = ramfuc_reg(0x10f910);
 680         ram->fuc.r_0x10f914 = ramfuc_reg(0x10f914);
 681
 682         ram->fuc.r_0x100b0c = ramfuc_reg(0x100b0c);
 683         ram->fuc.r_0x10f050 = ramfuc_reg(0x10f050);
 684         ram->fuc.r_0x10f090 = ramfuc_reg(0x10f090);
 685         ram->fuc.r_0x10f200 = ramfuc_reg(0x10f200);
 686         ram->fuc.r_0x10f210 = ramfuc_reg(0x10f210);
 687         ram->fuc.r_0x10f310 = ramfuc_reg(0x10f310);
 688         ram->fuc.r_0x10f314 = ramfuc_reg(0x10f314);
 689         ram->fuc.r_0x10f610 = ramfuc_reg(0x10f610);
 690         ram->fuc.r_0x10f614 = ramfuc_reg(0x10f614);
 691         ram->fuc.r_0x10f800 = ramfuc_reg(0x10f800);
 692         ram->fuc.r_0x10f808 = ramfuc_reg(0x10f808);
 693         ram->fuc.r_0x10f824 = ramfuc_reg(0x10f824);
 694         ram->fuc.r_0x10f830 = ramfuc_reg(0x10f830);
 695         ram->fuc.r_0x10f988 = ramfuc_reg(0x10f988);
 696         ram->fuc.r_0x10f98c = ramfuc_reg(0x10f98c);
 697         ram->fuc.r_0x10f990 = ramfuc_reg(0x10f990);
 698         ram->fuc.r_0x10f998 = ramfuc_reg(0x10f998);
 699         ram->fuc.r_0x10f9b0 = ramfuc_reg(0x10f9b0);
 700         ram->fuc.r_0x10f9b4 = ramfuc_reg(0x10f9b4);
 701         ram->fuc.r_0x10fb04 = ramfuc_reg(0x10fb04);
 702         ram->fuc.r_0x10fb08 = ramfuc_reg(0x10fb08);
 703         ram->fuc.r_0x137310 = ramfuc_reg(0x137300);
 704         ram->fuc.r_0x137310 = ramfuc_reg(0x137310);
 705         ram->fuc.r_0x137360 = ramfuc_reg(0x137360);
 706         ram->fuc.r_0x1373ec = ramfuc_reg(0x1373ec);
 707         ram->fuc.r_0x1373f0 = ramfuc_reg(0x1373f0);
 708         ram->fuc.r_0x1373f8 = ramfuc_reg(0x1373f8);
 709
 710         ram->fuc.r_0x61c140 = ramfuc_reg(0x61c140);
 711         ram->fuc.r_0x611200 = ramfuc_reg(0x611200);
 712
 713         ram->fuc.r_0x13d8f4 = ramfuc_reg(0x13d8f4);
 714         return 0;
 715 }