kernel/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.c

   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
  26 #include <core/client.h>
  27 #include <core/device.h>
  28 #include <core/handle.h>
  29 #include <engine/fifo.h>
  30 #include <subdev/timer.h>
  31
  32 struct nv50_gr_priv {
  33         struct nvkm_gr base;
  34         spinlock_t lock;
  35         u32 size;
  36 };
  37
  38 struct nv50_gr_chan {
  39         struct nvkm_gr_chan base;
  40 };
  41
  42 static u64
  43 nv50_gr_units(struct nvkm_gr *gr)
  44 {
  45         struct nv50_gr_priv *priv = (void *)gr;
  46
  47         return nv_rd32(priv, 0x1540);
  48 }
  49
  50 /*******************************************************************************
  51  * Graphics object classes
  52  ******************************************************************************/
  53
  54 static int
  55 nv50_gr_object_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
  56                     struct nvkm_oclass *oclass, void *data, u32 size,
  57                     struct nvkm_object **pobject)
  58 {
  59         struct nvkm_gpuobj *obj;
  60         int ret;
  61
  62         ret = nvkm_gpuobj_create(parent, engine, oclass, 0, parent,
  63                                  16, 16, 0, &obj);
  64         *pobject = nv_object(obj);
  65         if (ret)
  66                 return ret;
  67
  68         nv_wo32(obj, 0x00, nv_mclass(obj));
  69         nv_wo32(obj, 0x04, 0x00000000);
  70         nv_wo32(obj, 0x08, 0x00000000);
  71         nv_wo32(obj, 0x0c, 0x00000000);
  72         return 0;
  73 }
  74
  75 static struct nvkm_ofuncs
  76 nv50_gr_ofuncs = {
  77         .ctor = nv50_gr_object_ctor,
  78         .dtor = _nvkm_gpuobj_dtor,
  79         .init = _nvkm_gpuobj_init,
  80         .fini = _nvkm_gpuobj_fini,
  81         .rd32 = _nvkm_gpuobj_rd32,
  82         .wr32 = _nvkm_gpuobj_wr32,
  83 };
  84
  85 static struct nvkm_oclass
  86 nv50_gr_sclass[] = {
  87         { 0x0030, &nv50_gr_ofuncs },
  88         { 0x502d, &nv50_gr_ofuncs },
  89         { 0x5039, &nv50_gr_ofuncs },
  90         { 0x5097, &nv50_gr_ofuncs },
  91         { 0x50c0, &nv50_gr_ofuncs },
  92         {}
  93 };
  94
  95 static struct nvkm_oclass
  96 g84_gr_sclass[] = {
  97         { 0x0030, &nv50_gr_ofuncs },
  98         { 0x502d, &nv50_gr_ofuncs },
  99         { 0x5039, &nv50_gr_ofuncs },
 100         { 0x50c0, &nv50_gr_ofuncs },
 101         { 0x8297, &nv50_gr_ofuncs },
 102         {}
 103 };
 104
 105 static struct nvkm_oclass
 106 gt200_gr_sclass[] = {
 107         { 0x0030, &nv50_gr_ofuncs },
 108         { 0x502d, &nv50_gr_ofuncs },
 109         { 0x5039, &nv50_gr_ofuncs },
 110         { 0x50c0, &nv50_gr_ofuncs },
 111         { 0x8397, &nv50_gr_ofuncs },
 112         {}
 113 };
 114
 115 static struct nvkm_oclass
 116 gt215_gr_sclass[] = {
 117         { 0x0030, &nv50_gr_ofuncs },
 118         { 0x502d, &nv50_gr_ofuncs },
 119         { 0x5039, &nv50_gr_ofuncs },
 120         { 0x50c0, &nv50_gr_ofuncs },
 121         { 0x8597, &nv50_gr_ofuncs },
 122         { 0x85c0, &nv50_gr_ofuncs },
 123         {}
 124 };
 125
 126 static struct nvkm_oclass
 127 mcp89_gr_sclass[] = {
 128         { 0x0030, &nv50_gr_ofuncs },
 129         { 0x502d, &nv50_gr_ofuncs },
 130         { 0x5039, &nv50_gr_ofuncs },
 131         { 0x50c0, &nv50_gr_ofuncs },
 132         { 0x85c0, &nv50_gr_ofuncs },
 133         { 0x8697, &nv50_gr_ofuncs },
 134         {}
 135 };
 136
 137 /*******************************************************************************
 138  * PGRAPH context
 139  ******************************************************************************/
 140
 141 static int
 142 nv50_gr_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 143                      struct nvkm_oclass *oclass, void *data, u32 size,
 144                      struct nvkm_object **pobject)
 145 {
 146         struct nv50_gr_priv *priv = (void *)engine;
 147         struct nv50_gr_chan *chan;
 148         int ret;
 149
 150         ret = nvkm_gr_context_create(parent, engine, oclass, NULL, priv->size,
 151                                      0, NVOBJ_FLAG_ZERO_ALLOC, &chan);
 152         *pobject = nv_object(chan);
 153         if (ret)
 154                 return ret;
 155
 156         nv50_grctx_fill(nv_device(priv), nv_gpuobj(chan));
 157         return 0;
 158 }
 159
 160 static struct nvkm_oclass
 161 nv50_gr_cclass = {
 162         .handle = NV_ENGCTX(GR, 0x50),
 163         .ofuncs = &(struct nvkm_ofuncs) {
 164                 .ctor = nv50_gr_context_ctor,
 165                 .dtor = _nvkm_gr_context_dtor,
 166                 .init = _nvkm_gr_context_init,
 167                 .fini = _nvkm_gr_context_fini,
 168                 .rd32 = _nvkm_gr_context_rd32,
 169                 .wr32 = _nvkm_gr_context_wr32,
 170         },
 171 };
 172
 173 /*******************************************************************************
 174  * PGRAPH engine/subdev functions
 175  ******************************************************************************/
 176
 177 static const struct nvkm_bitfield nv50_pgr_status[] = {
 178         { 0x00000001, "BUSY" }, /* set when any bit is set */
 179         { 0x00000002, "DISPATCH" },
 180         { 0x00000004, "UNK2" },
 181         { 0x00000008, "UNK3" },
 182         { 0x00000010, "UNK4" },
 183         { 0x00000020, "UNK5" },
 184         { 0x00000040, "M2MF" },
 185         { 0x00000080, "UNK7" },
 186         { 0x00000100, "CTXPROG" },
 187         { 0x00000200, "VFETCH" },
 188         { 0x00000400, "CCACHE_PREGEOM" },
 189         { 0x00000800, "STRMOUT_VATTR_POSTGEOM" },
 190         { 0x00001000, "VCLIP" },
 191         { 0x00002000, "RATTR_APLANE" },
 192         { 0x00004000, "TRAST" },
 193         { 0x00008000, "CLIPID" },
 194         { 0x00010000, "ZCULL" },
 195         { 0x00020000, "ENG2D" },
 196         { 0x00040000, "RMASK" },
 197         { 0x00080000, "TPC_RAST" },
 198         { 0x00100000, "TPC_PROP" },
 199         { 0x00200000, "TPC_TEX" },
 200         { 0x00400000, "TPC_GEOM" },
 201         { 0x00800000, "TPC_MP" },
 202         { 0x01000000, "ROP" },
 203         {}
 204 };
 205
 206 static const char *const nv50_pgr_vstatus_0[] = {
 207         "VFETCH", "CCACHE", "PREGEOM", "POSTGEOM", "VATTR", "STRMOUT", "VCLIP",
 208         NULL
 209 };
 210
 211 static const char *const nv50_pgr_vstatus_1[] = {
 212         "TPC_RAST", "TPC_PROP", "TPC_TEX", "TPC_GEOM", "TPC_MP", NULL
 213 };
 214
 215 static const char *const nv50_pgr_vstatus_2[] = {
 216         "RATTR", "APLANE", "TRAST", "CLIPID", "ZCULL", "ENG2D", "RMASK",
 217         "ROP", NULL
 218 };
 219
 220 static void
 221 nvkm_pgr_vstatus_print(struct nv50_gr_priv *priv, int r,
 222                        const char *const units[], u32 status)
 223 {
 224         int i;
 225
 226         nv_error(priv, "PGRAPH_VSTATUS%d: 0x%08x", r, status);
 227
 228         for (i = 0; units[i] && status; i++) {
 229                 if ((status & 7) == 1)
 230                         pr_cont(" %s", units[i]);
 231                 status >>= 3;
 232         }
 233         if (status)
 234                 pr_cont(" (invalid: 0x%x)", status);
 235         pr_cont("\n");
 236 }
 237
 238 static int
 239 g84_gr_tlb_flush(struct nvkm_engine *engine)
 240 {
 241         struct nvkm_timer *ptimer = nvkm_timer(engine);
 242         struct nv50_gr_priv *priv = (void *)engine;
 243         bool idle, timeout = false;
 244         unsigned long flags;
 245         u64 start;
 246         u32 tmp;
 247
 248         spin_lock_irqsave(&priv->lock, flags);
 249         nv_mask(priv, 0x400500, 0x00000001, 0x00000000);
 250
 251         start = ptimer->read(ptimer);
 252         do {
 253                 idle = true;
 254
 255                 for (tmp = nv_rd32(priv, 0x400380); tmp && idle; tmp >>= 3) {
 256                         if ((tmp & 7) == 1)
 257                                 idle = false;
 258                 }
 259
 260                 for (tmp = nv_rd32(priv, 0x400384); tmp && idle; tmp >>= 3) {
 261                         if ((tmp & 7) == 1)
 262                                 idle = false;
 263                 }
 264
 265                 for (tmp = nv_rd32(priv, 0x400388); tmp && idle; tmp >>= 3) {
 266                         if ((tmp & 7) == 1)
 267                                 idle = false;
 268                 }
 269         } while (!idle &&
 270                  !(timeout = ptimer->read(ptimer) - start > 2000000000));
 271
 272         if (timeout) {
 273                 nv_error(priv, "PGRAPH TLB flush idle timeout fail\n");
 274
 275                 tmp = nv_rd32(priv, 0x400700);
 276                 nv_error(priv, "PGRAPH_STATUS  : 0x%08x", tmp);
 277                 nvkm_bitfield_print(nv50_pgr_status, tmp);
 278                 pr_cont("\n");
 279
 280                 nvkm_pgr_vstatus_print(priv, 0, nv50_pgr_vstatus_0,
 281                                        nv_rd32(priv, 0x400380));
 282                 nvkm_pgr_vstatus_print(priv, 1, nv50_pgr_vstatus_1,
 283                                        nv_rd32(priv, 0x400384));
 284                 nvkm_pgr_vstatus_print(priv, 2, nv50_pgr_vstatus_2,
 285                                        nv_rd32(priv, 0x400388));
 286         }
 287
 288
 289         nv_wr32(priv, 0x100c80, 0x00000001);
 290         if (!nv_wait(priv, 0x100c80, 0x00000001, 0x00000000))
 291                 nv_error(priv, "vm flush timeout\n");
 292         nv_mask(priv, 0x400500, 0x00000001, 0x00000001);
 293         spin_unlock_irqrestore(&priv->lock, flags);
 294         return timeout ? -EBUSY : 0;
 295 }
 296
 297 static const struct nvkm_bitfield nv50_mp_exec_errors[] = {
 298         { 0x01, "STACK_UNDERFLOW" },
 299         { 0x02, "STACK_MISMATCH" },
 300         { 0x04, "QUADON_ACTIVE" },
 301         { 0x08, "TIMEOUT" },
 302         { 0x10, "INVALID_OPCODE" },
 303         { 0x20, "PM_OVERFLOW" },
 304         { 0x40, "BREAKPOINT" },
 305         {}
 306 };
 307
 308 static const struct nvkm_bitfield nv50_mpc_traps[] = {
 309         { 0x0000001, "LOCAL_LIMIT_READ" },
 310         { 0x0000010, "LOCAL_LIMIT_WRITE" },
 311         { 0x0000040, "STACK_LIMIT" },
 312         { 0x0000100, "GLOBAL_LIMIT_READ" },
 313         { 0x0001000, "GLOBAL_LIMIT_WRITE" },
 314         { 0x0010000, "MP0" },
 315         { 0x0020000, "MP1" },
 316         { 0x0040000, "GLOBAL_LIMIT_RED" },
 317         { 0x0400000, "GLOBAL_LIMIT_ATOM" },
 318         { 0x4000000, "MP2" },
 319         {}
 320 };
 321
 322 static const struct nvkm_bitfield nv50_tex_traps[] = {
 323         { 0x00000001, "" }, /* any bit set? */
 324         { 0x00000002, "FAULT" },
 325         { 0x00000004, "STORAGE_TYPE_MISMATCH" },
 326         { 0x00000008, "LINEAR_MISMATCH" },
 327         { 0x00000020, "WRONG_MEMTYPE" },
 328         {}
 329 };
 330
 331 static const struct nvkm_bitfield nv50_gr_trap_m2mf[] = {
 332         { 0x00000001, "NOTIFY" },
 333         { 0x00000002, "IN" },
 334         { 0x00000004, "OUT" },
 335         {}
 336 };
 337
 338 static const struct nvkm_bitfield nv50_gr_trap_vfetch[] = {
 339         { 0x00000001, "FAULT" },
 340         {}
 341 };
 342
 343 static const struct nvkm_bitfield nv50_gr_trap_strmout[] = {
 344         { 0x00000001, "FAULT" },
 345         {}
 346 };
 347
 348 static const struct nvkm_bitfield nv50_gr_trap_ccache[] = {
 349         { 0x00000001, "FAULT" },
 350         {}
 351 };
 352
 353 /* There must be a *lot* of these. Will take some time to gather them up. */
 354 const struct nvkm_enum nv50_data_error_names[] = {
 355         { 0x00000003, "INVALID_OPERATION", NULL },
 356         { 0x00000004, "INVALID_VALUE", NULL },
 357         { 0x00000005, "INVALID_ENUM", NULL },
 358         { 0x00000008, "INVALID_OBJECT", NULL },
 359         { 0x00000009, "READ_ONLY_OBJECT", NULL },
 360         { 0x0000000a, "SUPERVISOR_OBJECT", NULL },
 361         { 0x0000000b, "INVALID_ADDRESS_ALIGNMENT", NULL },
 362         { 0x0000000c, "INVALID_BITFIELD", NULL },
 363         { 0x0000000d, "BEGIN_END_ACTIVE", NULL },
 364         { 0x0000000e, "SEMANTIC_COLOR_BACK_OVER_LIMIT", NULL },
 365         { 0x0000000f, "VIEWPORT_ID_NEEDS_GP", NULL },
 366         { 0x00000010, "RT_DOUBLE_BIND", NULL },
 367         { 0x00000011, "RT_TYPES_MISMATCH", NULL },
 368         { 0x00000012, "RT_LINEAR_WITH_ZETA", NULL },
 369         { 0x00000015, "FP_TOO_FEW_REGS", NULL },
 370         { 0x00000016, "ZETA_FORMAT_CSAA_MISMATCH", NULL },
 371         { 0x00000017, "RT_LINEAR_WITH_MSAA", NULL },
 372         { 0x00000018, "FP_INTERPOLANT_START_OVER_LIMIT", NULL },
 373         { 0x00000019, "SEMANTIC_LAYER_OVER_LIMIT", NULL },
 374         { 0x0000001a, "RT_INVALID_ALIGNMENT", NULL },
 375         { 0x0000001b, "SAMPLER_OVER_LIMIT", NULL },
 376         { 0x0000001c, "TEXTURE_OVER_LIMIT", NULL },
 377         { 0x0000001e, "GP_TOO_MANY_OUTPUTS", NULL },
 378         { 0x0000001f, "RT_BPP128_WITH_MS8", NULL },
 379         { 0x00000021, "Z_OUT_OF_BOUNDS", NULL },
 380         { 0x00000023, "XY_OUT_OF_BOUNDS", NULL },
 381         { 0x00000024, "VP_ZERO_INPUTS", NULL },
 382         { 0x00000027, "CP_MORE_PARAMS_THAN_SHARED", NULL },
 383         { 0x00000028, "CP_NO_REG_SPACE_STRIPED", NULL },
 384         { 0x00000029, "CP_NO_REG_SPACE_PACKED", NULL },
 385         { 0x0000002a, "CP_NOT_ENOUGH_WARPS", NULL },
 386         { 0x0000002b, "CP_BLOCK_SIZE_MISMATCH", NULL },
 387         { 0x0000002c, "CP_NOT_ENOUGH_LOCAL_WARPS", NULL },
 388         { 0x0000002d, "CP_NOT_ENOUGH_STACK_WARPS", NULL },
 389         { 0x0000002e, "CP_NO_BLOCKDIM_LATCH", NULL },
 390         { 0x00000031, "ENG2D_FORMAT_MISMATCH", NULL },
 391         { 0x0000003f, "PRIMITIVE_ID_NEEDS_GP", NULL },
 392         { 0x00000044, "SEMANTIC_VIEWPORT_OVER_LIMIT", NULL },
 393         { 0x00000045, "SEMANTIC_COLOR_FRONT_OVER_LIMIT", NULL },
 394         { 0x00000046, "LAYER_ID_NEEDS_GP", NULL },
 395         { 0x00000047, "SEMANTIC_CLIP_OVER_LIMIT", NULL },
 396         { 0x00000048, "SEMANTIC_PTSZ_OVER_LIMIT", NULL },
 397         {}
 398 };
 399
 400 static const struct nvkm_bitfield nv50_gr_intr_name[] = {
 401         { 0x00000001, "NOTIFY" },
 402         { 0x00000002, "COMPUTE_QUERY" },
 403         { 0x00000010, "ILLEGAL_MTHD" },
 404         { 0x00000020, "ILLEGAL_CLASS" },
 405         { 0x00000040, "DOUBLE_NOTIFY" },
 406         { 0x00001000, "CONTEXT_SWITCH" },
 407         { 0x00010000, "BUFFER_NOTIFY" },
 408         { 0x00100000, "DATA_ERROR" },
 409         { 0x00200000, "TRAP" },
 410         { 0x01000000, "SINGLE_STEP" },
 411         {}
 412 };
 413
 414 static const struct nvkm_bitfield nv50_gr_trap_prop[] = {
 415         { 0x00000004, "SURF_WIDTH_OVERRUN" },
 416         { 0x00000008, "SURF_HEIGHT_OVERRUN" },
 417         { 0x00000010, "DST2D_FAULT" },
 418         { 0x00000020, "ZETA_FAULT" },
 419         { 0x00000040, "RT_FAULT" },
 420         { 0x00000080, "CUDA_FAULT" },
 421         { 0x00000100, "DST2D_STORAGE_TYPE_MISMATCH" },
 422         { 0x00000200, "ZETA_STORAGE_TYPE_MISMATCH" },
 423         { 0x00000400, "RT_STORAGE_TYPE_MISMATCH" },
 424         { 0x00000800, "DST2D_LINEAR_MISMATCH" },
 425         { 0x00001000, "RT_LINEAR_MISMATCH" },
 426         {}
 427 };
 428
 429 static void
 430 nv50_priv_prop_trap(struct nv50_gr_priv *priv,
 431                     u32 ustatus_addr, u32 ustatus, u32 tp)
 432 {
 433         u32 e0c = nv_rd32(priv, ustatus_addr + 0x04);
 434         u32 e10 = nv_rd32(priv, ustatus_addr + 0x08);
 435         u32 e14 = nv_rd32(priv, ustatus_addr + 0x0c);
 436         u32 e18 = nv_rd32(priv, ustatus_addr + 0x10);
 437         u32 e1c = nv_rd32(priv, ustatus_addr + 0x14);
 438         u32 e20 = nv_rd32(priv, ustatus_addr + 0x18);
 439         u32 e24 = nv_rd32(priv, ustatus_addr + 0x1c);
 440
 441         /* CUDA memory: l[], g[] or stack. */
 442         if (ustatus & 0x00000080) {
 443                 if (e18 & 0x80000000) {
 444                         /* g[] read fault? */
 445                         nv_error(priv, "TRAP_PROP - TP %d - CUDA_FAULT - Global read fault at address %02x%08x\n",
 446                                          tp, e14, e10 | ((e18 >> 24) & 0x1f));
 447                         e18 &= ~0x1f000000;
 448                 } else if (e18 & 0xc) {
 449                         /* g[] write fault? */
 450                         nv_error(priv, "TRAP_PROP - TP %d - CUDA_FAULT - Global write fault at address %02x%08x\n",
 451                                  tp, e14, e10 | ((e18 >> 7) & 0x1f));
 452                         e18 &= ~0x00000f80;
 453                 } else {
 454                         nv_error(priv, "TRAP_PROP - TP %d - Unknown CUDA fault at address %02x%08x\n",
 455                                  tp, e14, e10);
 456                 }
 457                 ustatus &= ~0x00000080;
 458         }
 459         if (ustatus) {
 460                 nv_error(priv, "TRAP_PROP - TP %d -", tp);
 461                 nvkm_bitfield_print(nv50_gr_trap_prop, ustatus);
 462                 pr_cont(" - Address %02x%08x\n", e14, e10);
 463         }
 464         nv_error(priv, "TRAP_PROP - TP %d - e0c: %08x, e18: %08x, e1c: %08x, e20: %08x, e24: %08x\n",
 465                  tp, e0c, e18, e1c, e20, e24);
 466 }
 467
 468 static void
 469 nv50_priv_mp_trap(struct nv50_gr_priv *priv, int tpid, int display)
 470 {
 471         u32 units = nv_rd32(priv, 0x1540);
 472         u32 addr, mp10, status, pc, oplow, ophigh;
 473         int i;
 474         int mps = 0;
 475         for (i = 0; i < 4; i++) {
 476                 if (!(units & 1 << (i+24)))
 477                         continue;
 478                 if (nv_device(priv)->chipset < 0xa0)
 479                         addr = 0x408200 + (tpid << 12) + (i << 7);
 480                 else
 481                         addr = 0x408100 + (tpid << 11) + (i << 7);
 482                 mp10 = nv_rd32(priv, addr + 0x10);
 483                 status = nv_rd32(priv, addr + 0x14);
 484                 if (!status)
 485                         continue;
 486                 if (display) {
 487                         nv_rd32(priv, addr + 0x20);
 488                         pc = nv_rd32(priv, addr + 0x24);
 489                         oplow = nv_rd32(priv, addr + 0x70);
 490                         ophigh = nv_rd32(priv, addr + 0x74);
 491                         nv_error(priv, "TRAP_MP_EXEC - "
 492                                         "TP %d MP %d:", tpid, i);
 493                         nvkm_bitfield_print(nv50_mp_exec_errors, status);
 494                         pr_cont(" at %06x warp %d, opcode %08x %08x\n",
 495                                         pc&0xffffff, pc >> 24,
 496                                         oplow, ophigh);
 497                 }
 498                 nv_wr32(priv, addr + 0x10, mp10);
 499                 nv_wr32(priv, addr + 0x14, 0);
 500                 mps++;
 501         }
 502         if (!mps && display)
 503                 nv_error(priv, "TRAP_MP_EXEC - TP %d: "
 504                                 "No MPs claiming errors?\n", tpid);
 505 }
 506
 507 static void
 508 nv50_priv_tp_trap(struct nv50_gr_priv *priv, int type, u32 ustatus_old,
 509                   u32 ustatus_new, int display, const char *name)
 510 {
 511         int tps = 0;
 512         u32 units = nv_rd32(priv, 0x1540);
 513         int i, r;
 514         u32 ustatus_addr, ustatus;
 515         for (i = 0; i < 16; i++) {
 516                 if (!(units & (1 << i)))
 517                         continue;
 518                 if (nv_device(priv)->chipset < 0xa0)
 519                         ustatus_addr = ustatus_old + (i << 12);
 520                 else
 521                         ustatus_addr = ustatus_new + (i << 11);
 522                 ustatus = nv_rd32(priv, ustatus_addr) & 0x7fffffff;
 523                 if (!ustatus)
 524                         continue;
 525                 tps++;
 526                 switch (type) {
 527                 case 6: /* texture error... unknown for now */
 528                         if (display) {
 529                                 nv_error(priv, "magic set %d:\n", i);
 530                                 for (r = ustatus_addr + 4; r <= ustatus_addr + 0x10; r += 4)
 531                                         nv_error(priv, "\t0x%08x: 0x%08x\n", r,
 532                                                 nv_rd32(priv, r));
 533                                 if (ustatus) {
 534                                         nv_error(priv, "%s - TP%d:", name, i);
 535                                         nvkm_bitfield_print(nv50_tex_traps,
 536                                                                ustatus);
 537                                         pr_cont("\n");
 538                                         ustatus = 0;
 539                                 }
 540                         }
 541                         break;
 542                 case 7: /* MP error */
 543                         if (ustatus & 0x04030000) {
 544                                 nv50_priv_mp_trap(priv, i, display);
 545                                 ustatus &= ~0x04030000;
 546                         }
 547                         if (ustatus && display) {
 548                                 nv_error(priv, "%s - TP%d:", name, i);
 549                                 nvkm_bitfield_print(nv50_mpc_traps, ustatus);
 550                                 pr_cont("\n");
 551                                 ustatus = 0;
 552                         }
 553                         break;
 554                 case 8: /* PROP error */
 555                         if (display)
 556                                 nv50_priv_prop_trap(
 557                                                 priv, ustatus_addr, ustatus, i);
 558                         ustatus = 0;
 559                         break;
 560                 }
 561                 if (ustatus) {
 562                         if (display)
 563                                 nv_error(priv, "%s - TP%d: Unhandled ustatus 0x%08x\n", name, i, ustatus);
 564                 }
 565                 nv_wr32(priv, ustatus_addr, 0xc0000000);
 566         }
 567
 568         if (!tps && display)
 569                 nv_warn(priv, "%s - No TPs claiming errors?\n", name);
 570 }
 571
 572 static int
 573 nv50_gr_trap_handler(struct nv50_gr_priv *priv, u32 display,
 574                      int chid, u64 inst, struct nvkm_object *engctx)
 575 {
 576         u32 status = nv_rd32(priv, 0x400108);
 577         u32 ustatus;
 578
 579         if (!status && display) {
 580                 nv_error(priv, "TRAP: no units reporting traps?\n");
 581                 return 1;
 582         }
 583
 584         /* DISPATCH: Relays commands to other units and handles NOTIFY,
 585          * COND, QUERY. If you get a trap from it, the command is still stuck
 586          * in DISPATCH and you need to do something about it. */
 587         if (status & 0x001) {
 588                 ustatus = nv_rd32(priv, 0x400804) & 0x7fffffff;
 589                 if (!ustatus && display) {
 590                         nv_error(priv, "TRAP_DISPATCH - no ustatus?\n");
 591                 }
 592
 593                 nv_wr32(priv, 0x400500, 0x00000000);
 594
 595                 /* Known to be triggered by screwed up NOTIFY and COND... */
 596                 if (ustatus & 0x00000001) {
 597                         u32 addr = nv_rd32(priv, 0x400808);
 598                         u32 subc = (addr & 0x00070000) >> 16;
 599                         u32 mthd = (addr & 0x00001ffc);
 600                         u32 datal = nv_rd32(priv, 0x40080c);
 601                         u32 datah = nv_rd32(priv, 0x400810);
 602                         u32 class = nv_rd32(priv, 0x400814);
 603                         u32 r848 = nv_rd32(priv, 0x400848);
 604
 605                         nv_error(priv, "TRAP DISPATCH_FAULT\n");
 606                         if (display && (addr & 0x80000000)) {
 607                                 nv_error(priv,
 608                                          "ch %d [0x%010llx %s] subc %d class 0x%04x mthd 0x%04x data 0x%08x%08x 400808 0x%08x 400848 0x%08x\n",
 609                                          chid, inst,
 610                                          nvkm_client_name(engctx), subc,
 611                                          class, mthd, datah, datal, addr, r848);
 612                         } else
 613                         if (display) {
 614                                 nv_error(priv, "no stuck command?\n");
 615                         }
 616
 617                         nv_wr32(priv, 0x400808, 0);
 618                         nv_wr32(priv, 0x4008e8, nv_rd32(priv, 0x4008e8) & 3);
 619                         nv_wr32(priv, 0x400848, 0);
 620                         ustatus &= ~0x00000001;
 621                 }
 622
 623                 if (ustatus & 0x00000002) {
 624                         u32 addr = nv_rd32(priv, 0x40084c);
 625                         u32 subc = (addr & 0x00070000) >> 16;
 626                         u32 mthd = (addr & 0x00001ffc);
 627                         u32 data = nv_rd32(priv, 0x40085c);
 628                         u32 class = nv_rd32(priv, 0x400814);
 629
 630                         nv_error(priv, "TRAP DISPATCH_QUERY\n");
 631                         if (display && (addr & 0x80000000)) {
 632                                 nv_error(priv,
 633                                          "ch %d [0x%010llx %s] subc %d class 0x%04x mthd 0x%04x data 0x%08x 40084c 0x%08x\n",
 634                                          chid, inst,
 635                                          nvkm_client_name(engctx), subc,
 636                                          class, mthd, data, addr);
 637                         } else
 638                         if (display) {
 639                                 nv_error(priv, "no stuck command?\n");
 640                         }
 641
 642                         nv_wr32(priv, 0x40084c, 0);
 643                         ustatus &= ~0x00000002;
 644                 }
 645
 646                 if (ustatus && display) {
 647                         nv_error(priv, "TRAP_DISPATCH (unknown "
 648                                       "0x%08x)\n", ustatus);
 649                 }
 650
 651                 nv_wr32(priv, 0x400804, 0xc0000000);
 652                 nv_wr32(priv, 0x400108, 0x001);
 653                 status &= ~0x001;
 654                 if (!status)
 655                         return 0;
 656         }
 657
 658         /* M2MF: Memory to memory copy engine. */
 659         if (status & 0x002) {
 660                 u32 ustatus = nv_rd32(priv, 0x406800) & 0x7fffffff;
 661                 if (display) {
 662                         nv_error(priv, "TRAP_M2MF");
 663                         nvkm_bitfield_print(nv50_gr_trap_m2mf, ustatus);
 664                         pr_cont("\n");
 665                         nv_error(priv, "TRAP_M2MF %08x %08x %08x %08x\n",
 666                                 nv_rd32(priv, 0x406804), nv_rd32(priv, 0x406808),
 667                                 nv_rd32(priv, 0x40680c), nv_rd32(priv, 0x406810));
 668
 669                 }
 670
 671                 /* No sane way found yet -- just reset the bugger. */
 672                 nv_wr32(priv, 0x400040, 2);
 673                 nv_wr32(priv, 0x400040, 0);
 674                 nv_wr32(priv, 0x406800, 0xc0000000);
 675                 nv_wr32(priv, 0x400108, 0x002);
 676                 status &= ~0x002;
 677         }
 678
 679         /* VFETCH: Fetches data from vertex buffers. */
 680         if (status & 0x004) {
 681                 u32 ustatus = nv_rd32(priv, 0x400c04) & 0x7fffffff;
 682                 if (display) {
 683                         nv_error(priv, "TRAP_VFETCH");
 684                         nvkm_bitfield_print(nv50_gr_trap_vfetch, ustatus);
 685                         pr_cont("\n");
 686                         nv_error(priv, "TRAP_VFETCH %08x %08x %08x %08x\n",
 687                                 nv_rd32(priv, 0x400c00), nv_rd32(priv, 0x400c08),
 688                                 nv_rd32(priv, 0x400c0c), nv_rd32(priv, 0x400c10));
 689                 }
 690
 691                 nv_wr32(priv, 0x400c04, 0xc0000000);
 692                 nv_wr32(priv, 0x400108, 0x004);
 693                 status &= ~0x004;
 694         }
 695
 696         /* STRMOUT: DirectX streamout / OpenGL transform feedback. */
 697         if (status & 0x008) {
 698                 ustatus = nv_rd32(priv, 0x401800) & 0x7fffffff;
 699                 if (display) {
 700                         nv_error(priv, "TRAP_STRMOUT");
 701                         nvkm_bitfield_print(nv50_gr_trap_strmout, ustatus);
 702                         pr_cont("\n");
 703                         nv_error(priv, "TRAP_STRMOUT %08x %08x %08x %08x\n",
 704                                 nv_rd32(priv, 0x401804), nv_rd32(priv, 0x401808),
 705                                 nv_rd32(priv, 0x40180c), nv_rd32(priv, 0x401810));
 706
 707                 }
 708
 709                 /* No sane way found yet -- just reset the bugger. */
 710                 nv_wr32(priv, 0x400040, 0x80);
 711                 nv_wr32(priv, 0x400040, 0);
 712                 nv_wr32(priv, 0x401800, 0xc0000000);
 713                 nv_wr32(priv, 0x400108, 0x008);
 714                 status &= ~0x008;
 715         }
 716
 717         /* CCACHE: Handles code and c[] caches and fills them. */
 718         if (status & 0x010) {
 719                 ustatus = nv_rd32(priv, 0x405018) & 0x7fffffff;
 720                 if (display) {
 721                         nv_error(priv, "TRAP_CCACHE");
 722                         nvkm_bitfield_print(nv50_gr_trap_ccache, ustatus);
 723                         pr_cont("\n");
 724                         nv_error(priv, "TRAP_CCACHE %08x %08x %08x %08x"
 725                                      " %08x %08x %08x\n",
 726                                 nv_rd32(priv, 0x405000), nv_rd32(priv, 0x405004),
 727                                 nv_rd32(priv, 0x405008), nv_rd32(priv, 0x40500c),
 728                                 nv_rd32(priv, 0x405010), nv_rd32(priv, 0x405014),
 729                                 nv_rd32(priv, 0x40501c));
 730
 731                 }
 732
 733                 nv_wr32(priv, 0x405018, 0xc0000000);
 734                 nv_wr32(priv, 0x400108, 0x010);
 735                 status &= ~0x010;
 736         }
 737
 738         /* Unknown, not seen yet... 0x402000 is the only trap status reg
 739          * remaining, so try to handle it anyway. Perhaps related to that
 740          * unknown DMA slot on tesla? */
 741         if (status & 0x20) {
 742                 ustatus = nv_rd32(priv, 0x402000) & 0x7fffffff;
 743                 if (display)
 744                         nv_error(priv, "TRAP_UNKC04 0x%08x\n", ustatus);
 745                 nv_wr32(priv, 0x402000, 0xc0000000);
 746                 /* no status modifiction on purpose */
 747         }
 748
 749         /* TEXTURE: CUDA texturing units */
 750         if (status & 0x040) {
 751                 nv50_priv_tp_trap(priv, 6, 0x408900, 0x408600, display,
 752                                     "TRAP_TEXTURE");
 753                 nv_wr32(priv, 0x400108, 0x040);
 754                 status &= ~0x040;
 755         }
 756
 757         /* MP: CUDA execution engines. */
 758         if (status & 0x080) {
 759                 nv50_priv_tp_trap(priv, 7, 0x408314, 0x40831c, display,
 760                                     "TRAP_MP");
 761                 nv_wr32(priv, 0x400108, 0x080);
 762                 status &= ~0x080;
 763         }
 764
 765         /* PROP:  Handles TP-initiated uncached memory accesses:
 766          * l[], g[], stack, 2d surfaces, render targets. */
 767         if (status & 0x100) {
 768                 nv50_priv_tp_trap(priv, 8, 0x408e08, 0x408708, display,
 769                                     "TRAP_PROP");
 770                 nv_wr32(priv, 0x400108, 0x100);
 771                 status &= ~0x100;
 772         }
 773
 774         if (status) {
 775                 if (display)
 776                         nv_error(priv, "TRAP: unknown 0x%08x\n", status);
 777                 nv_wr32(priv, 0x400108, status);
 778         }
 779
 780         return 1;
 781 }
 782
 783 static void
 784 nv50_gr_intr(struct nvkm_subdev *subdev)
 785 {
 786         struct nvkm_fifo *pfifo = nvkm_fifo(subdev);
 787         struct nvkm_engine *engine = nv_engine(subdev);
 788         struct nvkm_object *engctx;
 789         struct nvkm_handle *handle = NULL;
 790         struct nv50_gr_priv *priv = (void *)subdev;
 791         u32 stat = nv_rd32(priv, 0x400100);
 792         u32 inst = nv_rd32(priv, 0x40032c) & 0x0fffffff;
 793         u32 addr = nv_rd32(priv, 0x400704);
 794         u32 subc = (addr & 0x00070000) >> 16;
 795         u32 mthd = (addr & 0x00001ffc);
 796         u32 data = nv_rd32(priv, 0x400708);
 797         u32 class = nv_rd32(priv, 0x400814);
 798         u32 show = stat, show_bitfield = stat;
 799         int chid;
 800
 801         engctx = nvkm_engctx_get(engine, inst);
 802         chid   = pfifo->chid(pfifo, engctx);
 803
 804         if (stat & 0x00000010) {
 805                 handle = nvkm_handle_get_class(engctx, class);
 806                 if (handle && !nv_call(handle->object, mthd, data))
 807                         show &= ~0x00000010;
 808                 nvkm_handle_put(handle);
 809         }
 810
 811         if (show & 0x00100000) {
 812                 u32 ecode = nv_rd32(priv, 0x400110);
 813                 nv_error(priv, "DATA_ERROR ");
 814                 nvkm_enum_print(nv50_data_error_names, ecode);
 815                 pr_cont("\n");
 816                 show_bitfield &= ~0x00100000;
 817         }
 818
 819         if (stat & 0x00200000) {
 820                 if (!nv50_gr_trap_handler(priv, show, chid, (u64)inst << 12,
 821                                           engctx))
 822                         show &= ~0x00200000;
 823                 show_bitfield &= ~0x00200000;
 824         }
 825
 826         nv_wr32(priv, 0x400100, stat);
 827         nv_wr32(priv, 0x400500, 0x00010001);
 828
 829         if (show) {
 830                 show &= show_bitfield;
 831                 if (show) {
 832                         nv_error(priv, "%s", "");
 833                         nvkm_bitfield_print(nv50_gr_intr_name, show);
 834                         pr_cont("\n");
 835                 }
 836                 nv_error(priv,
 837                          "ch %d [0x%010llx %s] subc %d class 0x%04x mthd 0x%04x data 0x%08x\n",
 838                          chid, (u64)inst << 12, nvkm_client_name(engctx),
 839                          subc, class, mthd, data);
 840         }
 841
 842         if (nv_rd32(priv, 0x400824) & (1 << 31))
 843                 nv_wr32(priv, 0x400824, nv_rd32(priv, 0x400824) & ~(1 << 31));
 844
 845         nvkm_engctx_put(engctx);
 846 }
 847
 848 static int
 849 nv50_gr_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 850              struct nvkm_oclass *oclass, void *data, u32 size,
 851              struct nvkm_object **pobject)
 852 {
 853         struct nv50_gr_priv *priv;
 854         int ret;
 855
 856         ret = nvkm_gr_create(parent, engine, oclass, true, &priv);
 857         *pobject = nv_object(priv);
 858         if (ret)
 859                 return ret;
 860
 861         nv_subdev(priv)->unit = 0x00201000;
 862         nv_subdev(priv)->intr = nv50_gr_intr;
 863         nv_engine(priv)->cclass = &nv50_gr_cclass;
 864
 865         priv->base.units = nv50_gr_units;
 866
 867         switch (nv_device(priv)->chipset) {
 868         case 0x50:
 869                 nv_engine(priv)->sclass = nv50_gr_sclass;
 870                 break;
 871         case 0x84:
 872         case 0x86:
 873         case 0x92:
 874         case 0x94:
 875         case 0x96:
 876         case 0x98:
 877                 nv_engine(priv)->sclass = g84_gr_sclass;
 878                 break;
 879         case 0xa0:
 880         case 0xaa:
 881         case 0xac:
 882                 nv_engine(priv)->sclass = gt200_gr_sclass;
 883                 break;
 884         case 0xa3:
 885         case 0xa5:
 886         case 0xa8:
 887                 nv_engine(priv)->sclass = gt215_gr_sclass;
 888                 break;
 889         case 0xaf:
 890                 nv_engine(priv)->sclass = mcp89_gr_sclass;
 891                 break;
 892
 893         }
 894
 895         /* unfortunate hw bug workaround... */
 896         if (nv_device(priv)->chipset != 0x50 &&
 897             nv_device(priv)->chipset != 0xac)
 898                 nv_engine(priv)->tlb_flush = g84_gr_tlb_flush;
 899
 900         spin_lock_init(&priv->lock);
 901         return 0;
 902 }
 903
 904 static int
 905 nv50_gr_init(struct nvkm_object *object)
 906 {
 907         struct nv50_gr_priv *priv = (void *)object;
 908         int ret, units, i;
 909
 910         ret = nvkm_gr_init(&priv->base);
 911         if (ret)
 912                 return ret;
 913
 914         /* NV_PGRAPH_DEBUG_3_HW_CTX_SWITCH_ENABLED */
 915         nv_wr32(priv, 0x40008c, 0x00000004);
 916
 917         /* reset/enable traps and interrupts */
 918         nv_wr32(priv, 0x400804, 0xc0000000);
 919         nv_wr32(priv, 0x406800, 0xc0000000);
 920         nv_wr32(priv, 0x400c04, 0xc0000000);
 921         nv_wr32(priv, 0x401800, 0xc0000000);
 922         nv_wr32(priv, 0x405018, 0xc0000000);
 923         nv_wr32(priv, 0x402000, 0xc0000000);
 924
 925         units = nv_rd32(priv, 0x001540);
 926         for (i = 0; i < 16; i++) {
 927                 if (!(units & (1 << i)))
 928                         continue;
 929
 930                 if (nv_device(priv)->chipset < 0xa0) {
 931                         nv_wr32(priv, 0x408900 + (i << 12), 0xc0000000);
 932                         nv_wr32(priv, 0x408e08 + (i << 12), 0xc0000000);
 933                         nv_wr32(priv, 0x408314 + (i << 12), 0xc0000000);
 934                 } else {
 935                         nv_wr32(priv, 0x408600 + (i << 11), 0xc0000000);
 936                         nv_wr32(priv, 0x408708 + (i << 11), 0xc0000000);
 937                         nv_wr32(priv, 0x40831c + (i << 11), 0xc0000000);
 938                 }
 939         }
 940
 941         nv_wr32(priv, 0x400108, 0xffffffff);
 942         nv_wr32(priv, 0x400138, 0xffffffff);
 943         nv_wr32(priv, 0x400100, 0xffffffff);
 944         nv_wr32(priv, 0x40013c, 0xffffffff);
 945         nv_wr32(priv, 0x400500, 0x00010001);
 946
 947         /* upload context program, initialise ctxctl defaults */
 948         ret = nv50_grctx_init(nv_device(priv), &priv->size);
 949         if (ret)
 950                 return ret;
 951
 952         nv_wr32(priv, 0x400824, 0x00000000);
 953         nv_wr32(priv, 0x400828, 0x00000000);
 954         nv_wr32(priv, 0x40082c, 0x00000000);
 955         nv_wr32(priv, 0x400830, 0x00000000);
 956         nv_wr32(priv, 0x40032c, 0x00000000);
 957         nv_wr32(priv, 0x400330, 0x00000000);
 958
 959         /* some unknown zcull magic */
 960         switch (nv_device(priv)->chipset & 0xf0) {
 961         case 0x50:
 962         case 0x80:
 963         case 0x90:
 964                 nv_wr32(priv, 0x402ca8, 0x00000800);
 965                 break;
 966         case 0xa0:
 967         default:
 968                 if (nv_device(priv)->chipset == 0xa0 ||
 969                     nv_device(priv)->chipset == 0xaa ||
 970                     nv_device(priv)->chipset == 0xac) {
 971                         nv_wr32(priv, 0x402ca8, 0x00000802);
 972                 } else {
 973                         nv_wr32(priv, 0x402cc0, 0x00000000);
 974                         nv_wr32(priv, 0x402ca8, 0x00000002);
 975                 }
 976
 977                 break;
 978         }
 979
 980         /* zero out zcull regions */
 981         for (i = 0; i < 8; i++) {
 982                 nv_wr32(priv, 0x402c20 + (i * 0x10), 0x00000000);
 983                 nv_wr32(priv, 0x402c24 + (i * 0x10), 0x00000000);
 984                 nv_wr32(priv, 0x402c28 + (i * 0x10), 0x00000000);
 985                 nv_wr32(priv, 0x402c2c + (i * 0x10), 0x00000000);
 986         }
 987         return 0;
 988 }
 989
 990 struct nvkm_oclass
 991 nv50_gr_oclass = {
 992         .handle = NV_ENGINE(GR, 0x50),
 993         .ofuncs = &(struct nvkm_ofuncs) {
 994                 .ctor = nv50_gr_ctor,
 995                 .dtor = _nvkm_gr_dtor,
 996                 .init = nv50_gr_init,
 997                 .fini = _nvkm_gr_fini,
 998         },
 999 };