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

DEFINITIONS

1. gf100_ram_train
2. gf100_ram_calc
3. gf100_ram_prog
4. gf100_ram_tidy
5. gf100_ram_init
6. gf100_ram_probe_fbpa_amount
7. gf100_ram_probe_fbp_amount
8. gf100_ram_probe_fbp
9. gf100_ram_ctor
10. gf100_ram_new_
11. gf100_ram_new

   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 
  36 struct gf100_ramfuc {
  37         struct ramfuc base;
  38 
  39         struct ramfuc_reg r_0x10fe20;
  40         struct ramfuc_reg r_0x10fe24;
  41         struct ramfuc_reg r_0x137320;
  42         struct ramfuc_reg r_0x137330;
  43 
  44         struct ramfuc_reg r_0x132000;
  45         struct ramfuc_reg r_0x132004;
  46         struct ramfuc_reg r_0x132100;
  47 
  48         struct ramfuc_reg r_0x137390;
  49 
  50         struct ramfuc_reg r_0x10f290;
  51         struct ramfuc_reg r_0x10f294;
  52         struct ramfuc_reg r_0x10f298;
  53         struct ramfuc_reg r_0x10f29c;
  54         struct ramfuc_reg r_0x10f2a0;
  55 
  56         struct ramfuc_reg r_0x10f300;
  57         struct ramfuc_reg r_0x10f338;
  58         struct ramfuc_reg r_0x10f340;
  59         struct ramfuc_reg r_0x10f344;
  60         struct ramfuc_reg r_0x10f348;
  61 
  62         struct ramfuc_reg r_0x10f910;
  63         struct ramfuc_reg r_0x10f914;
  64 
  65         struct ramfuc_reg r_0x100b0c;
  66         struct ramfuc_reg r_0x10f050;
  67         struct ramfuc_reg r_0x10f090;
  68         struct ramfuc_reg r_0x10f200;
  69         struct ramfuc_reg r_0x10f210;
  70         struct ramfuc_reg r_0x10f310;
  71         struct ramfuc_reg r_0x10f314;
  72         struct ramfuc_reg r_0x10f610;
  73         struct ramfuc_reg r_0x10f614;
  74         struct ramfuc_reg r_0x10f800;
  75         struct ramfuc_reg r_0x10f808;
  76         struct ramfuc_reg r_0x10f824;
  77         struct ramfuc_reg r_0x10f830;
  78         struct ramfuc_reg r_0x10f988;
  79         struct ramfuc_reg r_0x10f98c;
  80         struct ramfuc_reg r_0x10f990;
  81         struct ramfuc_reg r_0x10f998;
  82         struct ramfuc_reg r_0x10f9b0;
  83         struct ramfuc_reg r_0x10f9b4;
  84         struct ramfuc_reg r_0x10fb04;
  85         struct ramfuc_reg r_0x10fb08;
  86         struct ramfuc_reg r_0x137300;
  87         struct ramfuc_reg r_0x137310;
  88         struct ramfuc_reg r_0x137360;
  89         struct ramfuc_reg r_0x1373ec;
  90         struct ramfuc_reg r_0x1373f0;
  91         struct ramfuc_reg r_0x1373f8;
  92 
  93         struct ramfuc_reg r_0x61c140;
  94         struct ramfuc_reg r_0x611200;
  95 
  96         struct ramfuc_reg r_0x13d8f4;
  97 };
  98 
  99 struct gf100_ram {
 100         struct nvkm_ram base;
 101         struct gf100_ramfuc fuc;
 102         struct nvbios_pll refpll;
 103         struct nvbios_pll mempll;
 104 };
 105 
 106 static void
 107 gf100_ram_train(struct gf100_ramfuc *fuc, u32 magic)
 108 {
 109         struct gf100_ram *ram = container_of(fuc, typeof(*ram), fuc);
 110         struct nvkm_fb *fb = ram->base.fb;
 111         struct nvkm_device *device = fb->subdev.device;
 112         u32 part = nvkm_rd32(device, 0x022438), i;
 113         u32 mask = nvkm_rd32(device, 0x022554);
 114         u32 addr = 0x110974;
 115 
 116         ram_wr32(fuc, 0x10f910, magic);
 117         ram_wr32(fuc, 0x10f914, magic);
 118 
 119         for (i = 0; (magic & 0x80000000) && i < part; addr += 0x1000, i++) {
 120                 if (mask & (1 << i))
 121                         continue;
 122                 ram_wait(fuc, addr, 0x0000000f, 0x00000000, 500000);
 123         }
 124 }
 125 
 126 int
 127 gf100_ram_calc(struct nvkm_ram *base, u32 freq)
 128 {
 129         struct gf100_ram *ram = gf100_ram(base);
 130         struct gf100_ramfuc *fuc = &ram->fuc;
 131         struct nvkm_subdev *subdev = &ram->base.fb->subdev;
 132         struct nvkm_device *device = subdev->device;
 133         struct nvkm_clk *clk = device->clk;
 134         struct nvkm_bios *bios = device->bios;
 135         struct nvbios_ramcfg cfg;
 136         u8  ver, cnt, len, strap;
 137         struct {
 138                 u32 data;
 139                 u8  size;
 140         } rammap, ramcfg, timing;
 141         int ref, div, out;
 142         int from, mode;
 143         int N1, M1, P;
 144         int ret;
 145 
 146         /* lookup memory config data relevant to the target frequency */
 147         rammap.data = nvbios_rammapEm(bios, freq / 1000, &ver, &rammap.size,
 148                                       &cnt, &ramcfg.size, &cfg);
 149         if (!rammap.data || ver != 0x10 || rammap.size < 0x0e) {
 150                 nvkm_error(subdev, "invalid/missing rammap entry\n");
 151                 return -EINVAL;
 152         }
 153 
 154         /* locate specific data set for the attached memory */
 155         strap = nvbios_ramcfg_index(subdev);
 156         if (strap >= cnt) {
 157                 nvkm_error(subdev, "invalid ramcfg strap\n");
 158                 return -EINVAL;
 159         }
 160 
 161         ramcfg.data = rammap.data + rammap.size + (strap * ramcfg.size);
 162         if (!ramcfg.data || ver != 0x10 || ramcfg.size < 0x0e) {
 163                 nvkm_error(subdev, "invalid/missing ramcfg entry\n");
 164                 return -EINVAL;
 165         }
 166 
 167         /* lookup memory timings, if bios says they're present */
 168         strap = nvbios_rd08(bios, ramcfg.data + 0x01);
 169         if (strap != 0xff) {
 170                 timing.data = nvbios_timingEe(bios, strap, &ver, &timing.size,
 171                                               &cnt, &len);
 172                 if (!timing.data || ver != 0x10 || timing.size < 0x19) {
 173                         nvkm_error(subdev, "invalid/missing timing entry\n");
 174                         return -EINVAL;
 175                 }
 176         } else {
 177                 timing.data = 0;
 178         }
 179 
 180         ret = ram_init(fuc, ram->base.fb);
 181         if (ret)
 182                 return ret;
 183 
 184         /* determine current mclk configuration */
 185         from = !!(ram_rd32(fuc, 0x1373f0) & 0x00000002); /*XXX: ok? */
 186 
 187         /* determine target mclk configuration */
 188         if (!(ram_rd32(fuc, 0x137300) & 0x00000100))
 189                 ref = nvkm_clk_read(clk, nv_clk_src_sppll0);
 190         else
 191                 ref = nvkm_clk_read(clk, nv_clk_src_sppll1);
 192         div = max(min((ref * 2) / freq, (u32)65), (u32)2) - 2;
 193         out = (ref * 2) / (div + 2);
 194         mode = freq != out;
 195 
 196         ram_mask(fuc, 0x137360, 0x00000002, 0x00000000);
 197 
 198         if ((ram_rd32(fuc, 0x132000) & 0x00000002) || 0 /*XXX*/) {
 199                 ram_nuke(fuc, 0x132000);
 200                 ram_mask(fuc, 0x132000, 0x00000002, 0x00000002);
 201                 ram_mask(fuc, 0x132000, 0x00000002, 0x00000000);
 202         }
 203 
 204         if (mode == 1) {
 205                 ram_nuke(fuc, 0x10fe20);
 206                 ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000002);
 207                 ram_mask(fuc, 0x10fe20, 0x00000002, 0x00000000);
 208         }
 209 
 210 // 0x00020034 // 0x0000000a
 211         ram_wr32(fuc, 0x132100, 0x00000001);
 212 
 213         if (mode == 1 && from == 0) {
 214                 /* calculate refpll */
 215                 ret = gt215_pll_calc(subdev, &ram->refpll, ram->mempll.refclk,
 216                                      &N1, NULL, &M1, &P);
 217                 if (ret <= 0) {
 218                         nvkm_error(subdev, "unable to calc refpll\n");
 219                         return ret ? ret : -ERANGE;
 220                 }
 221 
 222                 ram_wr32(fuc, 0x10fe20, 0x20010000);
 223                 ram_wr32(fuc, 0x137320, 0x00000003);
 224                 ram_wr32(fuc, 0x137330, 0x81200006);
 225                 ram_wr32(fuc, 0x10fe24, (P << 16) | (N1 << 8) | M1);
 226                 ram_wr32(fuc, 0x10fe20, 0x20010001);
 227                 ram_wait(fuc, 0x137390, 0x00020000, 0x00020000, 64000);
 228 
 229                 /* calculate mempll */
 230                 ret = gt215_pll_calc(subdev, &ram->mempll, freq,
 231                                      &N1, NULL, &M1, &P);
 232                 if (ret <= 0) {
 233                         nvkm_error(subdev, "unable to calc refpll\n");
 234                         return ret ? ret : -ERANGE;
 235                 }
 236 
 237                 ram_wr32(fuc, 0x10fe20, 0x20010005);
 238                 ram_wr32(fuc, 0x132004, (P << 16) | (N1 << 8) | M1);
 239                 ram_wr32(fuc, 0x132000, 0x18010101);
 240                 ram_wait(fuc, 0x137390, 0x00000002, 0x00000002, 64000);
 241         } else
 242         if (mode == 0) {
 243                 ram_wr32(fuc, 0x137300, 0x00000003);
 244         }
 245 
 246         if (from == 0) {
 247                 ram_nuke(fuc, 0x10fb04);
 248                 ram_mask(fuc, 0x10fb04, 0x0000ffff, 0x00000000);
 249                 ram_nuke(fuc, 0x10fb08);
 250                 ram_mask(fuc, 0x10fb08, 0x0000ffff, 0x00000000);
 251                 ram_wr32(fuc, 0x10f988, 0x2004ff00);
 252                 ram_wr32(fuc, 0x10f98c, 0x003fc040);
 253                 ram_wr32(fuc, 0x10f990, 0x20012001);
 254                 ram_wr32(fuc, 0x10f998, 0x00011a00);
 255                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 256         } else {
 257                 ram_wr32(fuc, 0x10f988, 0x20010000);
 258                 ram_wr32(fuc, 0x10f98c, 0x00000000);
 259                 ram_wr32(fuc, 0x10f990, 0x20012001);
 260                 ram_wr32(fuc, 0x10f998, 0x00010a00);
 261         }
 262 
 263         if (from == 0) {
 264 // 0x00020039 // 0x000000ba
 265         }
 266 
 267 // 0x0002003a // 0x00000002
 268         ram_wr32(fuc, 0x100b0c, 0x00080012);
 269 // 0x00030014 // 0x00000000 // 0x02b5f070
 270 // 0x00030014 // 0x00010000 // 0x02b5f070
 271         ram_wr32(fuc, 0x611200, 0x00003300);
 272 // 0x00020034 // 0x0000000a
 273 // 0x00030020 // 0x00000001 // 0x00000000
 274 
 275         ram_mask(fuc, 0x10f200, 0x00000800, 0x00000000);
 276         ram_wr32(fuc, 0x10f210, 0x00000000);
 277         ram_nsec(fuc, 1000);
 278         if (mode == 0)
 279                 gf100_ram_train(fuc, 0x000c1001);
 280         ram_wr32(fuc, 0x10f310, 0x00000001);
 281         ram_nsec(fuc, 1000);
 282         ram_wr32(fuc, 0x10f090, 0x00000061);
 283         ram_wr32(fuc, 0x10f090, 0xc000007f);
 284         ram_nsec(fuc, 1000);
 285 
 286         if (from == 0) {
 287                 ram_wr32(fuc, 0x10f824, 0x00007fd4);
 288         } else {
 289                 ram_wr32(fuc, 0x1373ec, 0x00020404);
 290         }
 291 
 292         if (mode == 0) {
 293                 ram_mask(fuc, 0x10f808, 0x00080000, 0x00000000);
 294                 ram_mask(fuc, 0x10f200, 0x00008000, 0x00008000);
 295                 ram_wr32(fuc, 0x10f830, 0x41500010);
 296                 ram_mask(fuc, 0x10f830, 0x01000000, 0x00000000);
 297                 ram_mask(fuc, 0x132100, 0x00000100, 0x00000100);
 298                 ram_wr32(fuc, 0x10f050, 0xff000090);
 299                 ram_wr32(fuc, 0x1373ec, 0x00020f0f);
 300                 ram_wr32(fuc, 0x1373f0, 0x00000003);
 301                 ram_wr32(fuc, 0x137310, 0x81201616);
 302                 ram_wr32(fuc, 0x132100, 0x00000001);
 303 // 0x00020039 // 0x000000ba
 304                 ram_wr32(fuc, 0x10f830, 0x00300017);
 305                 ram_wr32(fuc, 0x1373f0, 0x00000001);
 306                 ram_wr32(fuc, 0x10f824, 0x00007e77);
 307                 ram_wr32(fuc, 0x132000, 0x18030001);
 308                 ram_wr32(fuc, 0x10f090, 0x4000007e);
 309                 ram_nsec(fuc, 2000);
 310                 ram_wr32(fuc, 0x10f314, 0x00000001);
 311                 ram_wr32(fuc, 0x10f210, 0x80000000);
 312                 ram_wr32(fuc, 0x10f338, 0x00300220);
 313                 ram_wr32(fuc, 0x10f300, 0x0000011d);
 314                 ram_nsec(fuc, 1000);
 315                 ram_wr32(fuc, 0x10f290, 0x02060505);
 316                 ram_wr32(fuc, 0x10f294, 0x34208288);
 317                 ram_wr32(fuc, 0x10f298, 0x44050411);
 318                 ram_wr32(fuc, 0x10f29c, 0x0000114c);
 319                 ram_wr32(fuc, 0x10f2a0, 0x42e10069);
 320                 ram_wr32(fuc, 0x10f614, 0x40044f77);
 321                 ram_wr32(fuc, 0x10f610, 0x40044f77);
 322                 ram_wr32(fuc, 0x10f344, 0x00600009);
 323                 ram_nsec(fuc, 1000);
 324                 ram_wr32(fuc, 0x10f348, 0x00700008);
 325                 ram_wr32(fuc, 0x61c140, 0x19240000);
 326                 ram_wr32(fuc, 0x10f830, 0x00300017);
 327                 gf100_ram_train(fuc, 0x80021001);
 328                 gf100_ram_train(fuc, 0x80081001);
 329                 ram_wr32(fuc, 0x10f340, 0x00500004);
 330                 ram_nsec(fuc, 1000);
 331                 ram_wr32(fuc, 0x10f830, 0x01300017);
 332                 ram_wr32(fuc, 0x10f830, 0x00300017);
 333 // 0x00030020 // 0x00000000 // 0x00000000
 334 // 0x00020034 // 0x0000000b
 335                 ram_wr32(fuc, 0x100b0c, 0x00080028);
 336                 ram_wr32(fuc, 0x611200, 0x00003330);
 337         } else {
 338                 ram_wr32(fuc, 0x10f800, 0x00001800);
 339                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 340                 ram_wr32(fuc, 0x1373ec, 0x00020404);
 341                 ram_wr32(fuc, 0x1373f0, 0x00000003);
 342                 ram_wr32(fuc, 0x10f830, 0x40700010);
 343                 ram_wr32(fuc, 0x10f830, 0x40500010);
 344                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 345                 ram_wr32(fuc, 0x1373f8, 0x00000000);
 346                 ram_wr32(fuc, 0x132100, 0x00000101);
 347                 ram_wr32(fuc, 0x137310, 0x89201616);
 348                 ram_wr32(fuc, 0x10f050, 0xff000090);
 349                 ram_wr32(fuc, 0x1373ec, 0x00030404);
 350                 ram_wr32(fuc, 0x1373f0, 0x00000002);
 351         // 0x00020039 // 0x00000011
 352                 ram_wr32(fuc, 0x132100, 0x00000001);
 353                 ram_wr32(fuc, 0x1373f8, 0x00002000);
 354                 ram_nsec(fuc, 2000);
 355                 ram_wr32(fuc, 0x10f808, 0x7aaa0050);
 356                 ram_wr32(fuc, 0x10f830, 0x00500010);
 357                 ram_wr32(fuc, 0x10f200, 0x00ce1000);
 358                 ram_wr32(fuc, 0x10f090, 0x4000007e);
 359                 ram_nsec(fuc, 2000);
 360                 ram_wr32(fuc, 0x10f314, 0x00000001);
 361                 ram_wr32(fuc, 0x10f210, 0x80000000);
 362                 ram_wr32(fuc, 0x10f338, 0x00300200);
 363                 ram_wr32(fuc, 0x10f300, 0x0000084d);
 364                 ram_nsec(fuc, 1000);
 365                 ram_wr32(fuc, 0x10f290, 0x0b343825);
 366                 ram_wr32(fuc, 0x10f294, 0x3483028e);
 367                 ram_wr32(fuc, 0x10f298, 0x440c0600);
 368                 ram_wr32(fuc, 0x10f29c, 0x0000214c);
 369                 ram_wr32(fuc, 0x10f2a0, 0x42e20069);
 370                 ram_wr32(fuc, 0x10f200, 0x00ce0000);
 371                 ram_wr32(fuc, 0x10f614, 0x60044e77);
 372                 ram_wr32(fuc, 0x10f610, 0x60044e77);
 373                 ram_wr32(fuc, 0x10f340, 0x00500000);
 374                 ram_nsec(fuc, 1000);
 375                 ram_wr32(fuc, 0x10f344, 0x00600228);
 376                 ram_nsec(fuc, 1000);
 377                 ram_wr32(fuc, 0x10f348, 0x00700000);
 378                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 379                 ram_wr32(fuc, 0x61c140, 0x09a40000);
 380 
 381                 gf100_ram_train(fuc, 0x800e1008);
 382 
 383                 ram_nsec(fuc, 1000);
 384                 ram_wr32(fuc, 0x10f800, 0x00001804);
 385         // 0x00030020 // 0x00000000 // 0x00000000
 386         // 0x00020034 // 0x0000000b
 387                 ram_wr32(fuc, 0x13d8f4, 0x00000000);
 388                 ram_wr32(fuc, 0x100b0c, 0x00080028);
 389                 ram_wr32(fuc, 0x611200, 0x00003330);
 390                 ram_nsec(fuc, 100000);
 391                 ram_wr32(fuc, 0x10f9b0, 0x05313f41);
 392                 ram_wr32(fuc, 0x10f9b4, 0x00002f50);
 393 
 394                 gf100_ram_train(fuc, 0x010c1001);
 395         }
 396 
 397         ram_mask(fuc, 0x10f200, 0x00000800, 0x00000800);
 398 // 0x00020016 // 0x00000000
 399 
 400         if (mode == 0)
 401                 ram_mask(fuc, 0x132000, 0x00000001, 0x00000000);
 402 
 403         return 0;
 404 }
 405 
 406 int
 407 gf100_ram_prog(struct nvkm_ram *base)
 408 {
 409         struct gf100_ram *ram = gf100_ram(base);
 410         struct nvkm_device *device = ram->base.fb->subdev.device;
 411         ram_exec(&ram->fuc, nvkm_boolopt(device->cfgopt, "NvMemExec", true));
 412         return 0;
 413 }
 414 
 415 void
 416 gf100_ram_tidy(struct nvkm_ram *base)
 417 {
 418         struct gf100_ram *ram = gf100_ram(base);
 419         ram_exec(&ram->fuc, false);
 420 }
 421 
 422 int
 423 gf100_ram_init(struct nvkm_ram *base)
 424 {
 425         static const u8  train0[] = {
 426                 0x00, 0xff, 0x55, 0xaa, 0x33, 0xcc,
 427                 0x00, 0xff, 0xff, 0x00, 0xff, 0x00,
 428         };
 429         static const u32 train1[] = {
 430                 0x00000000, 0xffffffff,
 431                 0x55555555, 0xaaaaaaaa,
 432                 0x33333333, 0xcccccccc,
 433                 0xf0f0f0f0, 0x0f0f0f0f,
 434                 0x00ff00ff, 0xff00ff00,
 435                 0x0000ffff, 0xffff0000,
 436         };
 437         struct gf100_ram *ram = gf100_ram(base);
 438         struct nvkm_device *device = ram->base.fb->subdev.device;
 439         int i;
 440 
 441         switch (ram->base.type) {
 442         case NVKM_RAM_TYPE_GDDR5:
 443                 break;
 444         default:
 445                 return 0;
 446         }
 447 
 448         /* prepare for ddr link training, and load training patterns */
 449         for (i = 0; i < 0x30; i++) {
 450                 nvkm_wr32(device, 0x10f968, 0x00000000 | (i << 8));
 451                 nvkm_wr32(device, 0x10f96c, 0x00000000 | (i << 8));
 452                 nvkm_wr32(device, 0x10f920, 0x00000100 | train0[i % 12]);
 453                 nvkm_wr32(device, 0x10f924, 0x00000100 | train0[i % 12]);
 454                 nvkm_wr32(device, 0x10f918,              train1[i % 12]);
 455                 nvkm_wr32(device, 0x10f91c,              train1[i % 12]);
 456                 nvkm_wr32(device, 0x10f920, 0x00000000 | train0[i % 12]);
 457                 nvkm_wr32(device, 0x10f924, 0x00000000 | train0[i % 12]);
 458                 nvkm_wr32(device, 0x10f918,              train1[i % 12]);
 459                 nvkm_wr32(device, 0x10f91c,              train1[i % 12]);
 460         }
 461 
 462         return 0;
 463 }
 464 
 465 u32
 466 gf100_ram_probe_fbpa_amount(struct nvkm_device *device, int fbpa)
 467 {
 468         return nvkm_rd32(device, 0x11020c + (fbpa * 0x1000));
 469 }
 470 
 471 u32
 472 gf100_ram_probe_fbp_amount(const struct nvkm_ram_func *func, u32 fbpao,
 473                            struct nvkm_device *device, int fbp, int *pltcs)
 474 {
 475         if (!(fbpao & BIT(fbp))) {
 476                 *pltcs = 1;
 477                 return func->probe_fbpa_amount(device, fbp);
 478         }
 479         return 0;
 480 }
 481 
 482 u32
 483 gf100_ram_probe_fbp(const struct nvkm_ram_func *func,
 484                     struct nvkm_device *device, int fbp, int *pltcs)
 485 {
 486         u32 fbpao = nvkm_rd32(device, 0x022554);
 487         return func->probe_fbp_amount(func, fbpao, device, fbp, pltcs);
 488 }
 489 
 490 int
 491 gf100_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
 492                struct nvkm_ram *ram)
 493 {
 494         struct nvkm_subdev *subdev = &fb->subdev;
 495         struct nvkm_device *device = subdev->device;
 496         struct nvkm_bios *bios = device->bios;
 497         const u32 rsvd_head = ( 256 * 1024); /* vga memory */
 498         const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
 499         enum nvkm_ram_type type = nvkm_fb_bios_memtype(bios);
 500         u32 fbps = nvkm_rd32(device, 0x022438);
 501         u64 total = 0, lcomm = ~0, lower, ubase, usize;
 502         int ret, fbp, ltcs, ltcn = 0;
 503 
 504         nvkm_debug(subdev, "%d FBP(s)\n", fbps);
 505         for (fbp = 0; fbp < fbps; fbp++) {
 506                 u32 size = func->probe_fbp(func, device, fbp, &ltcs);
 507                 if (size) {
 508                         nvkm_debug(subdev, "FBP %d: %4d MiB, %d LTC(s)\n",
 509                                    fbp, size, ltcs);
 510                         lcomm  = min(lcomm, (u64)(size / ltcs) << 20);
 511                         total += (u64) size << 20;
 512                         ltcn  += ltcs;
 513                 } else {
 514                         nvkm_debug(subdev, "FBP %d: disabled\n", fbp);
 515                 }
 516         }
 517 
 518         lower = lcomm * ltcn;
 519         ubase = lcomm + func->upper;
 520         usize = total - lower;
 521 
 522         nvkm_debug(subdev, "Lower: %4lld MiB @ %010llx\n", lower >> 20, 0ULL);
 523         nvkm_debug(subdev, "Upper: %4lld MiB @ %010llx\n", usize >> 20, ubase);
 524         nvkm_debug(subdev, "Total: %4lld MiB\n", total >> 20);
 525 
 526         ret = nvkm_ram_ctor(func, fb, type, total, ram);
 527         if (ret)
 528                 return ret;
 529 
 530         nvkm_mm_fini(&ram->vram);
 531 
 532         /* Some GPUs are in what's known as a "mixed memory" configuration.
 533          *
 534          * This is either where some FBPs have more memory than the others,
 535          * or where LTCs have been disabled on a FBP.
 536          */
 537         if (lower != total) {
 538                 /* The common memory amount is addressed normally. */
 539                 ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL,
 540                                    rsvd_head >> NVKM_RAM_MM_SHIFT,
 541                                    (lower - rsvd_head) >> NVKM_RAM_MM_SHIFT, 1);
 542                 if (ret)
 543                         return ret;
 544 
 545                 /* And the rest is much higher in the physical address
 546                  * space, and may not be usable for certain operations.
 547                  */
 548                 ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_MIXED,
 549                                    ubase >> NVKM_RAM_MM_SHIFT,
 550                                    (usize - rsvd_tail) >> NVKM_RAM_MM_SHIFT, 1);
 551                 if (ret)
 552                         return ret;
 553         } else {
 554                 /* GPUs without mixed-memory are a lot nicer... */
 555                 ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL,
 556                                    rsvd_head >> NVKM_RAM_MM_SHIFT,
 557                                    (total - rsvd_head - rsvd_tail) >>
 558                                    NVKM_RAM_MM_SHIFT, 1);
 559                 if (ret)
 560                         return ret;
 561         }
 562 
 563         return 0;
 564 }
 565 
 566 int
 567 gf100_ram_new_(const struct nvkm_ram_func *func,
 568                struct nvkm_fb *fb, struct nvkm_ram **pram)
 569 {
 570         struct nvkm_subdev *subdev = &fb->subdev;
 571         struct nvkm_bios *bios = subdev->device->bios;
 572         struct gf100_ram *ram;
 573         int ret;
 574 
 575         if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL)))
 576                 return -ENOMEM;
 577         *pram = &ram->base;
 578 
 579         ret = gf100_ram_ctor(func, fb, &ram->base);
 580         if (ret)
 581                 return ret;
 582 
 583         ret = nvbios_pll_parse(bios, 0x0c, &ram->refpll);
 584         if (ret) {
 585                 nvkm_error(subdev, "mclk refpll data not found\n");
 586                 return ret;
 587         }
 588 
 589         ret = nvbios_pll_parse(bios, 0x04, &ram->mempll);
 590         if (ret) {
 591                 nvkm_error(subdev, "mclk pll data not found\n");
 592                 return ret;
 593         }
 594 
 595         ram->fuc.r_0x10fe20 = ramfuc_reg(0x10fe20);
 596         ram->fuc.r_0x10fe24 = ramfuc_reg(0x10fe24);
 597         ram->fuc.r_0x137320 = ramfuc_reg(0x137320);
 598         ram->fuc.r_0x137330 = ramfuc_reg(0x137330);
 599 
 600         ram->fuc.r_0x132000 = ramfuc_reg(0x132000);
 601         ram->fuc.r_0x132004 = ramfuc_reg(0x132004);
 602         ram->fuc.r_0x132100 = ramfuc_reg(0x132100);
 603 
 604         ram->fuc.r_0x137390 = ramfuc_reg(0x137390);
 605 
 606         ram->fuc.r_0x10f290 = ramfuc_reg(0x10f290);
 607         ram->fuc.r_0x10f294 = ramfuc_reg(0x10f294);
 608         ram->fuc.r_0x10f298 = ramfuc_reg(0x10f298);
 609         ram->fuc.r_0x10f29c = ramfuc_reg(0x10f29c);
 610         ram->fuc.r_0x10f2a0 = ramfuc_reg(0x10f2a0);
 611 
 612         ram->fuc.r_0x10f300 = ramfuc_reg(0x10f300);
 613         ram->fuc.r_0x10f338 = ramfuc_reg(0x10f338);
 614         ram->fuc.r_0x10f340 = ramfuc_reg(0x10f340);
 615         ram->fuc.r_0x10f344 = ramfuc_reg(0x10f344);
 616         ram->fuc.r_0x10f348 = ramfuc_reg(0x10f348);
 617 
 618         ram->fuc.r_0x10f910 = ramfuc_reg(0x10f910);
 619         ram->fuc.r_0x10f914 = ramfuc_reg(0x10f914);
 620 
 621         ram->fuc.r_0x100b0c = ramfuc_reg(0x100b0c);
 622         ram->fuc.r_0x10f050 = ramfuc_reg(0x10f050);
 623         ram->fuc.r_0x10f090 = ramfuc_reg(0x10f090);
 624         ram->fuc.r_0x10f200 = ramfuc_reg(0x10f200);
 625         ram->fuc.r_0x10f210 = ramfuc_reg(0x10f210);
 626         ram->fuc.r_0x10f310 = ramfuc_reg(0x10f310);
 627         ram->fuc.r_0x10f314 = ramfuc_reg(0x10f314);
 628         ram->fuc.r_0x10f610 = ramfuc_reg(0x10f610);
 629         ram->fuc.r_0x10f614 = ramfuc_reg(0x10f614);
 630         ram->fuc.r_0x10f800 = ramfuc_reg(0x10f800);
 631         ram->fuc.r_0x10f808 = ramfuc_reg(0x10f808);
 632         ram->fuc.r_0x10f824 = ramfuc_reg(0x10f824);
 633         ram->fuc.r_0x10f830 = ramfuc_reg(0x10f830);
 634         ram->fuc.r_0x10f988 = ramfuc_reg(0x10f988);
 635         ram->fuc.r_0x10f98c = ramfuc_reg(0x10f98c);
 636         ram->fuc.r_0x10f990 = ramfuc_reg(0x10f990);
 637         ram->fuc.r_0x10f998 = ramfuc_reg(0x10f998);
 638         ram->fuc.r_0x10f9b0 = ramfuc_reg(0x10f9b0);
 639         ram->fuc.r_0x10f9b4 = ramfuc_reg(0x10f9b4);
 640         ram->fuc.r_0x10fb04 = ramfuc_reg(0x10fb04);
 641         ram->fuc.r_0x10fb08 = ramfuc_reg(0x10fb08);
 642         ram->fuc.r_0x137310 = ramfuc_reg(0x137300);
 643         ram->fuc.r_0x137310 = ramfuc_reg(0x137310);
 644         ram->fuc.r_0x137360 = ramfuc_reg(0x137360);
 645         ram->fuc.r_0x1373ec = ramfuc_reg(0x1373ec);
 646         ram->fuc.r_0x1373f0 = ramfuc_reg(0x1373f0);
 647         ram->fuc.r_0x1373f8 = ramfuc_reg(0x1373f8);
 648 
 649         ram->fuc.r_0x61c140 = ramfuc_reg(0x61c140);
 650         ram->fuc.r_0x611200 = ramfuc_reg(0x611200);
 651 
 652         ram->fuc.r_0x13d8f4 = ramfuc_reg(0x13d8f4);
 653         return 0;
 654 }
 655 
 656 static const struct nvkm_ram_func
 657 gf100_ram = {
 658         .upper = 0x0200000000,
 659         .probe_fbp = gf100_ram_probe_fbp,
 660         .probe_fbp_amount = gf100_ram_probe_fbp_amount,
 661         .probe_fbpa_amount = gf100_ram_probe_fbpa_amount,
 662         .init = gf100_ram_init,
 663         .calc = gf100_ram_calc,
 664         .prog = gf100_ram_prog,
 665         .tidy = gf100_ram_tidy,
 666 };
 667 
 668 int
 669 gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
 670 {
 671         return gf100_ram_new_(&gf100_ram, fb, pram);
 672 }