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 <engine/fifo.h>
25
26 #include <core/client.h>
27 #include <core/engctx.h>
28 #include <core/enum.h>
29 #include <core/handle.h>
30 #include <subdev/bar.h>
31 #include <subdev/fb.h>
32 #include <subdev/mmu.h>
33 #include <subdev/timer.h>
34
35 #include <nvif/class.h>
36 #include <nvif/unpack.h>
37
38 struct gf100_fifo_priv {
39 struct nvkm_fifo base;
40
41 struct work_struct fault;
42 u64 mask;
43
44 struct {
45 struct nvkm_gpuobj *mem[2];
46 int active;
47 wait_queue_head_t wait;
48 } runlist;
49
50 struct {
51 struct nvkm_gpuobj *mem;
52 struct nvkm_vma bar;
53 } user;
54 int spoon_nr;
55 };
56
57 struct gf100_fifo_base {
58 struct nvkm_fifo_base base;
59 struct nvkm_gpuobj *pgd;
60 struct nvkm_vm *vm;
61 };
62
63 struct gf100_fifo_chan {
64 struct nvkm_fifo_chan base;
65 enum {
66 STOPPED,
67 RUNNING,
68 KILLED
69 } state;
70 };
71
72 /*******************************************************************************
73 * FIFO channel objects
74 ******************************************************************************/
75
76 static void
gf100_fifo_runlist_update(struct gf100_fifo_priv * priv)77 gf100_fifo_runlist_update(struct gf100_fifo_priv *priv)
78 {
79 struct nvkm_bar *bar = nvkm_bar(priv);
80 struct nvkm_gpuobj *cur;
81 int i, p;
82
83 mutex_lock(&nv_subdev(priv)->mutex);
84 cur = priv->runlist.mem[priv->runlist.active];
85 priv->runlist.active = !priv->runlist.active;
86
87 for (i = 0, p = 0; i < 128; i++) {
88 struct gf100_fifo_chan *chan = (void *)priv->base.channel[i];
89 if (chan && chan->state == RUNNING) {
90 nv_wo32(cur, p + 0, i);
91 nv_wo32(cur, p + 4, 0x00000004);
92 p += 8;
93 }
94 }
95 bar->flush(bar);
96
97 nv_wr32(priv, 0x002270, cur->addr >> 12);
98 nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
99
100 if (wait_event_timeout(priv->runlist.wait,
101 !(nv_rd32(priv, 0x00227c) & 0x00100000),
102 msecs_to_jiffies(2000)) == 0)
103 nv_error(priv, "runlist update timeout\n");
104 mutex_unlock(&nv_subdev(priv)->mutex);
105 }
106
107 static int
gf100_fifo_context_attach(struct nvkm_object * parent,struct nvkm_object * object)108 gf100_fifo_context_attach(struct nvkm_object *parent,
109 struct nvkm_object *object)
110 {
111 struct nvkm_bar *bar = nvkm_bar(parent);
112 struct gf100_fifo_base *base = (void *)parent->parent;
113 struct nvkm_engctx *ectx = (void *)object;
114 u32 addr;
115 int ret;
116
117 switch (nv_engidx(object->engine)) {
118 case NVDEV_ENGINE_SW : return 0;
119 case NVDEV_ENGINE_GR : addr = 0x0210; break;
120 case NVDEV_ENGINE_CE0 : addr = 0x0230; break;
121 case NVDEV_ENGINE_CE1 : addr = 0x0240; break;
122 case NVDEV_ENGINE_MSVLD : addr = 0x0270; break;
123 case NVDEV_ENGINE_MSPDEC: addr = 0x0250; break;
124 case NVDEV_ENGINE_MSPPP : addr = 0x0260; break;
125 default:
126 return -EINVAL;
127 }
128
129 if (!ectx->vma.node) {
130 ret = nvkm_gpuobj_map_vm(nv_gpuobj(ectx), base->vm,
131 NV_MEM_ACCESS_RW, &ectx->vma);
132 if (ret)
133 return ret;
134
135 nv_engctx(ectx)->addr = nv_gpuobj(base)->addr >> 12;
136 }
137
138 nv_wo32(base, addr + 0x00, lower_32_bits(ectx->vma.offset) | 4);
139 nv_wo32(base, addr + 0x04, upper_32_bits(ectx->vma.offset));
140 bar->flush(bar);
141 return 0;
142 }
143
144 static int
gf100_fifo_context_detach(struct nvkm_object * parent,bool suspend,struct nvkm_object * object)145 gf100_fifo_context_detach(struct nvkm_object *parent, bool suspend,
146 struct nvkm_object *object)
147 {
148 struct nvkm_bar *bar = nvkm_bar(parent);
149 struct gf100_fifo_priv *priv = (void *)parent->engine;
150 struct gf100_fifo_base *base = (void *)parent->parent;
151 struct gf100_fifo_chan *chan = (void *)parent;
152 u32 addr;
153
154 switch (nv_engidx(object->engine)) {
155 case NVDEV_ENGINE_SW : return 0;
156 case NVDEV_ENGINE_GR : addr = 0x0210; break;
157 case NVDEV_ENGINE_CE0 : addr = 0x0230; break;
158 case NVDEV_ENGINE_CE1 : addr = 0x0240; break;
159 case NVDEV_ENGINE_MSVLD : addr = 0x0270; break;
160 case NVDEV_ENGINE_MSPDEC: addr = 0x0250; break;
161 case NVDEV_ENGINE_MSPPP : addr = 0x0260; break;
162 default:
163 return -EINVAL;
164 }
165
166 nv_wr32(priv, 0x002634, chan->base.chid);
167 if (!nv_wait(priv, 0x002634, 0xffffffff, chan->base.chid)) {
168 nv_error(priv, "channel %d [%s] kick timeout\n",
169 chan->base.chid, nvkm_client_name(chan));
170 if (suspend)
171 return -EBUSY;
172 }
173
174 nv_wo32(base, addr + 0x00, 0x00000000);
175 nv_wo32(base, addr + 0x04, 0x00000000);
176 bar->flush(bar);
177 return 0;
178 }
179
180 static int
gf100_fifo_chan_ctor(struct nvkm_object * parent,struct nvkm_object * engine,struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)181 gf100_fifo_chan_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
182 struct nvkm_oclass *oclass, void *data, u32 size,
183 struct nvkm_object **pobject)
184 {
185 union {
186 struct nv50_channel_gpfifo_v0 v0;
187 } *args = data;
188 struct nvkm_bar *bar = nvkm_bar(parent);
189 struct gf100_fifo_priv *priv = (void *)engine;
190 struct gf100_fifo_base *base = (void *)parent;
191 struct gf100_fifo_chan *chan;
192 u64 usermem, ioffset, ilength;
193 int ret, i;
194
195 nv_ioctl(parent, "create channel gpfifo size %d\n", size);
196 if (nvif_unpack(args->v0, 0, 0, false)) {
197 nv_ioctl(parent, "create channel gpfifo vers %d pushbuf %08x "
198 "ioffset %016llx ilength %08x\n",
199 args->v0.version, args->v0.pushbuf, args->v0.ioffset,
200 args->v0.ilength);
201 } else
202 return ret;
203
204 ret = nvkm_fifo_channel_create(parent, engine, oclass, 1,
205 priv->user.bar.offset, 0x1000,
206 args->v0.pushbuf,
207 (1ULL << NVDEV_ENGINE_SW) |
208 (1ULL << NVDEV_ENGINE_GR) |
209 (1ULL << NVDEV_ENGINE_CE0) |
210 (1ULL << NVDEV_ENGINE_CE1) |
211 (1ULL << NVDEV_ENGINE_MSVLD) |
212 (1ULL << NVDEV_ENGINE_MSPDEC) |
213 (1ULL << NVDEV_ENGINE_MSPPP), &chan);
214 *pobject = nv_object(chan);
215 if (ret)
216 return ret;
217
218 args->v0.chid = chan->base.chid;
219
220 nv_parent(chan)->context_attach = gf100_fifo_context_attach;
221 nv_parent(chan)->context_detach = gf100_fifo_context_detach;
222
223 usermem = chan->base.chid * 0x1000;
224 ioffset = args->v0.ioffset;
225 ilength = order_base_2(args->v0.ilength / 8);
226
227 for (i = 0; i < 0x1000; i += 4)
228 nv_wo32(priv->user.mem, usermem + i, 0x00000000);
229
230 nv_wo32(base, 0x08, lower_32_bits(priv->user.mem->addr + usermem));
231 nv_wo32(base, 0x0c, upper_32_bits(priv->user.mem->addr + usermem));
232 nv_wo32(base, 0x10, 0x0000face);
233 nv_wo32(base, 0x30, 0xfffff902);
234 nv_wo32(base, 0x48, lower_32_bits(ioffset));
235 nv_wo32(base, 0x4c, upper_32_bits(ioffset) | (ilength << 16));
236 nv_wo32(base, 0x54, 0x00000002);
237 nv_wo32(base, 0x84, 0x20400000);
238 nv_wo32(base, 0x94, 0x30000001);
239 nv_wo32(base, 0x9c, 0x00000100);
240 nv_wo32(base, 0xa4, 0x1f1f1f1f);
241 nv_wo32(base, 0xa8, 0x1f1f1f1f);
242 nv_wo32(base, 0xac, 0x0000001f);
243 nv_wo32(base, 0xb8, 0xf8000000);
244 nv_wo32(base, 0xf8, 0x10003080); /* 0x002310 */
245 nv_wo32(base, 0xfc, 0x10000010); /* 0x002350 */
246 bar->flush(bar);
247 return 0;
248 }
249
250 static int
gf100_fifo_chan_init(struct nvkm_object * object)251 gf100_fifo_chan_init(struct nvkm_object *object)
252 {
253 struct nvkm_gpuobj *base = nv_gpuobj(object->parent);
254 struct gf100_fifo_priv *priv = (void *)object->engine;
255 struct gf100_fifo_chan *chan = (void *)object;
256 u32 chid = chan->base.chid;
257 int ret;
258
259 ret = nvkm_fifo_channel_init(&chan->base);
260 if (ret)
261 return ret;
262
263 nv_wr32(priv, 0x003000 + (chid * 8), 0xc0000000 | base->addr >> 12);
264
265 if (chan->state == STOPPED && (chan->state = RUNNING) == RUNNING) {
266 nv_wr32(priv, 0x003004 + (chid * 8), 0x001f0001);
267 gf100_fifo_runlist_update(priv);
268 }
269
270 return 0;
271 }
272
273 static void gf100_fifo_intr_engine(struct gf100_fifo_priv *priv);
274
275 static int
gf100_fifo_chan_fini(struct nvkm_object * object,bool suspend)276 gf100_fifo_chan_fini(struct nvkm_object *object, bool suspend)
277 {
278 struct gf100_fifo_priv *priv = (void *)object->engine;
279 struct gf100_fifo_chan *chan = (void *)object;
280 u32 chid = chan->base.chid;
281
282 if (chan->state == RUNNING && (chan->state = STOPPED) == STOPPED) {
283 nv_mask(priv, 0x003004 + (chid * 8), 0x00000001, 0x00000000);
284 gf100_fifo_runlist_update(priv);
285 }
286
287 gf100_fifo_intr_engine(priv);
288
289 nv_wr32(priv, 0x003000 + (chid * 8), 0x00000000);
290 return nvkm_fifo_channel_fini(&chan->base, suspend);
291 }
292
293 static struct nvkm_ofuncs
294 gf100_fifo_ofuncs = {
295 .ctor = gf100_fifo_chan_ctor,
296 .dtor = _nvkm_fifo_channel_dtor,
297 .init = gf100_fifo_chan_init,
298 .fini = gf100_fifo_chan_fini,
299 .map = _nvkm_fifo_channel_map,
300 .rd32 = _nvkm_fifo_channel_rd32,
301 .wr32 = _nvkm_fifo_channel_wr32,
302 .ntfy = _nvkm_fifo_channel_ntfy
303 };
304
305 static struct nvkm_oclass
306 gf100_fifo_sclass[] = {
307 { FERMI_CHANNEL_GPFIFO, &gf100_fifo_ofuncs },
308 {}
309 };
310
311 /*******************************************************************************
312 * FIFO context - instmem heap and vm setup
313 ******************************************************************************/
314
315 static int
gf100_fifo_context_ctor(struct nvkm_object * parent,struct nvkm_object * engine,struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)316 gf100_fifo_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
317 struct nvkm_oclass *oclass, void *data, u32 size,
318 struct nvkm_object **pobject)
319 {
320 struct gf100_fifo_base *base;
321 int ret;
322
323 ret = nvkm_fifo_context_create(parent, engine, oclass, NULL, 0x1000,
324 0x1000, NVOBJ_FLAG_ZERO_ALLOC |
325 NVOBJ_FLAG_HEAP, &base);
326 *pobject = nv_object(base);
327 if (ret)
328 return ret;
329
330 ret = nvkm_gpuobj_new(nv_object(base), NULL, 0x10000, 0x1000, 0,
331 &base->pgd);
332 if (ret)
333 return ret;
334
335 nv_wo32(base, 0x0200, lower_32_bits(base->pgd->addr));
336 nv_wo32(base, 0x0204, upper_32_bits(base->pgd->addr));
337 nv_wo32(base, 0x0208, 0xffffffff);
338 nv_wo32(base, 0x020c, 0x000000ff);
339
340 ret = nvkm_vm_ref(nvkm_client(parent)->vm, &base->vm, base->pgd);
341 if (ret)
342 return ret;
343
344 return 0;
345 }
346
347 static void
gf100_fifo_context_dtor(struct nvkm_object * object)348 gf100_fifo_context_dtor(struct nvkm_object *object)
349 {
350 struct gf100_fifo_base *base = (void *)object;
351 nvkm_vm_ref(NULL, &base->vm, base->pgd);
352 nvkm_gpuobj_ref(NULL, &base->pgd);
353 nvkm_fifo_context_destroy(&base->base);
354 }
355
356 static struct nvkm_oclass
357 gf100_fifo_cclass = {
358 .handle = NV_ENGCTX(FIFO, 0xc0),
359 .ofuncs = &(struct nvkm_ofuncs) {
360 .ctor = gf100_fifo_context_ctor,
361 .dtor = gf100_fifo_context_dtor,
362 .init = _nvkm_fifo_context_init,
363 .fini = _nvkm_fifo_context_fini,
364 .rd32 = _nvkm_fifo_context_rd32,
365 .wr32 = _nvkm_fifo_context_wr32,
366 },
367 };
368
369 /*******************************************************************************
370 * PFIFO engine
371 ******************************************************************************/
372
373 static inline int
gf100_fifo_engidx(struct gf100_fifo_priv * priv,u32 engn)374 gf100_fifo_engidx(struct gf100_fifo_priv *priv, u32 engn)
375 {
376 switch (engn) {
377 case NVDEV_ENGINE_GR : engn = 0; break;
378 case NVDEV_ENGINE_MSVLD : engn = 1; break;
379 case NVDEV_ENGINE_MSPPP : engn = 2; break;
380 case NVDEV_ENGINE_MSPDEC: engn = 3; break;
381 case NVDEV_ENGINE_CE0 : engn = 4; break;
382 case NVDEV_ENGINE_CE1 : engn = 5; break;
383 default:
384 return -1;
385 }
386
387 return engn;
388 }
389
390 static inline struct nvkm_engine *
gf100_fifo_engine(struct gf100_fifo_priv * priv,u32 engn)391 gf100_fifo_engine(struct gf100_fifo_priv *priv, u32 engn)
392 {
393 switch (engn) {
394 case 0: engn = NVDEV_ENGINE_GR; break;
395 case 1: engn = NVDEV_ENGINE_MSVLD; break;
396 case 2: engn = NVDEV_ENGINE_MSPPP; break;
397 case 3: engn = NVDEV_ENGINE_MSPDEC; break;
398 case 4: engn = NVDEV_ENGINE_CE0; break;
399 case 5: engn = NVDEV_ENGINE_CE1; break;
400 default:
401 return NULL;
402 }
403
404 return nvkm_engine(priv, engn);
405 }
406
407 static void
gf100_fifo_recover_work(struct work_struct * work)408 gf100_fifo_recover_work(struct work_struct *work)
409 {
410 struct gf100_fifo_priv *priv = container_of(work, typeof(*priv), fault);
411 struct nvkm_object *engine;
412 unsigned long flags;
413 u32 engn, engm = 0;
414 u64 mask, todo;
415
416 spin_lock_irqsave(&priv->base.lock, flags);
417 mask = priv->mask;
418 priv->mask = 0ULL;
419 spin_unlock_irqrestore(&priv->base.lock, flags);
420
421 for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn))
422 engm |= 1 << gf100_fifo_engidx(priv, engn);
423 nv_mask(priv, 0x002630, engm, engm);
424
425 for (todo = mask; engn = __ffs64(todo), todo; todo &= ~(1 << engn)) {
426 if ((engine = (void *)nvkm_engine(priv, engn))) {
427 nv_ofuncs(engine)->fini(engine, false);
428 WARN_ON(nv_ofuncs(engine)->init(engine));
429 }
430 }
431
432 gf100_fifo_runlist_update(priv);
433 nv_wr32(priv, 0x00262c, engm);
434 nv_mask(priv, 0x002630, engm, 0x00000000);
435 }
436
437 static void
gf100_fifo_recover(struct gf100_fifo_priv * priv,struct nvkm_engine * engine,struct gf100_fifo_chan * chan)438 gf100_fifo_recover(struct gf100_fifo_priv *priv, struct nvkm_engine *engine,
439 struct gf100_fifo_chan *chan)
440 {
441 u32 chid = chan->base.chid;
442 unsigned long flags;
443
444 nv_error(priv, "%s engine fault on channel %d, recovering...\n",
445 nv_subdev(engine)->name, chid);
446
447 nv_mask(priv, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
448 chan->state = KILLED;
449
450 spin_lock_irqsave(&priv->base.lock, flags);
451 priv->mask |= 1ULL << nv_engidx(engine);
452 spin_unlock_irqrestore(&priv->base.lock, flags);
453 schedule_work(&priv->fault);
454 }
455
456 static int
gf100_fifo_swmthd(struct gf100_fifo_priv * priv,u32 chid,u32 mthd,u32 data)457 gf100_fifo_swmthd(struct gf100_fifo_priv *priv, u32 chid, u32 mthd, u32 data)
458 {
459 struct gf100_fifo_chan *chan = NULL;
460 struct nvkm_handle *bind;
461 unsigned long flags;
462 int ret = -EINVAL;
463
464 spin_lock_irqsave(&priv->base.lock, flags);
465 if (likely(chid >= priv->base.min && chid <= priv->base.max))
466 chan = (void *)priv->base.channel[chid];
467 if (unlikely(!chan))
468 goto out;
469
470 bind = nvkm_namedb_get_class(nv_namedb(chan), 0x906e);
471 if (likely(bind)) {
472 if (!mthd || !nv_call(bind->object, mthd, data))
473 ret = 0;
474 nvkm_namedb_put(bind);
475 }
476
477 out:
478 spin_unlock_irqrestore(&priv->base.lock, flags);
479 return ret;
480 }
481
482 static const struct nvkm_enum
483 gf100_fifo_sched_reason[] = {
484 { 0x0a, "CTXSW_TIMEOUT" },
485 {}
486 };
487
488 static void
gf100_fifo_intr_sched_ctxsw(struct gf100_fifo_priv * priv)489 gf100_fifo_intr_sched_ctxsw(struct gf100_fifo_priv *priv)
490 {
491 struct nvkm_engine *engine;
492 struct gf100_fifo_chan *chan;
493 u32 engn;
494
495 for (engn = 0; engn < 6; engn++) {
496 u32 stat = nv_rd32(priv, 0x002640 + (engn * 0x04));
497 u32 busy = (stat & 0x80000000);
498 u32 save = (stat & 0x00100000); /* maybe? */
499 u32 unk0 = (stat & 0x00040000);
500 u32 unk1 = (stat & 0x00001000);
501 u32 chid = (stat & 0x0000007f);
502 (void)save;
503
504 if (busy && unk0 && unk1) {
505 if (!(chan = (void *)priv->base.channel[chid]))
506 continue;
507 if (!(engine = gf100_fifo_engine(priv, engn)))
508 continue;
509 gf100_fifo_recover(priv, engine, chan);
510 }
511 }
512 }
513
514 static void
gf100_fifo_intr_sched(struct gf100_fifo_priv * priv)515 gf100_fifo_intr_sched(struct gf100_fifo_priv *priv)
516 {
517 u32 intr = nv_rd32(priv, 0x00254c);
518 u32 code = intr & 0x000000ff;
519 const struct nvkm_enum *en;
520 char enunk[6] = "";
521
522 en = nvkm_enum_find(gf100_fifo_sched_reason, code);
523 if (!en)
524 snprintf(enunk, sizeof(enunk), "UNK%02x", code);
525
526 nv_error(priv, "SCHED_ERROR [ %s ]\n", en ? en->name : enunk);
527
528 switch (code) {
529 case 0x0a:
530 gf100_fifo_intr_sched_ctxsw(priv);
531 break;
532 default:
533 break;
534 }
535 }
536
537 static const struct nvkm_enum
538 gf100_fifo_fault_engine[] = {
539 { 0x00, "PGRAPH", NULL, NVDEV_ENGINE_GR },
540 { 0x03, "PEEPHOLE", NULL, NVDEV_ENGINE_IFB },
541 { 0x04, "BAR1", NULL, NVDEV_SUBDEV_BAR },
542 { 0x05, "BAR3", NULL, NVDEV_SUBDEV_INSTMEM },
543 { 0x07, "PFIFO", NULL, NVDEV_ENGINE_FIFO },
544 { 0x10, "PMSVLD", NULL, NVDEV_ENGINE_MSVLD },
545 { 0x11, "PMSPPP", NULL, NVDEV_ENGINE_MSPPP },
546 { 0x13, "PCOUNTER" },
547 { 0x14, "PMSPDEC", NULL, NVDEV_ENGINE_MSPDEC },
548 { 0x15, "PCE0", NULL, NVDEV_ENGINE_CE0 },
549 { 0x16, "PCE1", NULL, NVDEV_ENGINE_CE1 },
550 { 0x17, "PDAEMON" },
551 {}
552 };
553
554 static const struct nvkm_enum
555 gf100_fifo_fault_reason[] = {
556 { 0x00, "PT_NOT_PRESENT" },
557 { 0x01, "PT_TOO_SHORT" },
558 { 0x02, "PAGE_NOT_PRESENT" },
559 { 0x03, "VM_LIMIT_EXCEEDED" },
560 { 0x04, "NO_CHANNEL" },
561 { 0x05, "PAGE_SYSTEM_ONLY" },
562 { 0x06, "PAGE_READ_ONLY" },
563 { 0x0a, "COMPRESSED_SYSRAM" },
564 { 0x0c, "INVALID_STORAGE_TYPE" },
565 {}
566 };
567
568 static const struct nvkm_enum
569 gf100_fifo_fault_hubclient[] = {
570 { 0x01, "PCOPY0" },
571 { 0x02, "PCOPY1" },
572 { 0x04, "DISPATCH" },
573 { 0x05, "CTXCTL" },
574 { 0x06, "PFIFO" },
575 { 0x07, "BAR_READ" },
576 { 0x08, "BAR_WRITE" },
577 { 0x0b, "PVP" },
578 { 0x0c, "PMSPPP" },
579 { 0x0d, "PMSVLD" },
580 { 0x11, "PCOUNTER" },
581 { 0x12, "PDAEMON" },
582 { 0x14, "CCACHE" },
583 { 0x15, "CCACHE_POST" },
584 {}
585 };
586
587 static const struct nvkm_enum
588 gf100_fifo_fault_gpcclient[] = {
589 { 0x01, "TEX" },
590 { 0x0c, "ESETUP" },
591 { 0x0e, "CTXCTL" },
592 { 0x0f, "PROP" },
593 {}
594 };
595
596 static void
gf100_fifo_intr_fault(struct gf100_fifo_priv * priv,int unit)597 gf100_fifo_intr_fault(struct gf100_fifo_priv *priv, int unit)
598 {
599 u32 inst = nv_rd32(priv, 0x002800 + (unit * 0x10));
600 u32 valo = nv_rd32(priv, 0x002804 + (unit * 0x10));
601 u32 vahi = nv_rd32(priv, 0x002808 + (unit * 0x10));
602 u32 stat = nv_rd32(priv, 0x00280c + (unit * 0x10));
603 u32 gpc = (stat & 0x1f000000) >> 24;
604 u32 client = (stat & 0x00001f00) >> 8;
605 u32 write = (stat & 0x00000080);
606 u32 hub = (stat & 0x00000040);
607 u32 reason = (stat & 0x0000000f);
608 struct nvkm_object *engctx = NULL, *object;
609 struct nvkm_engine *engine = NULL;
610 const struct nvkm_enum *er, *eu, *ec;
611 char erunk[6] = "";
612 char euunk[6] = "";
613 char ecunk[6] = "";
614 char gpcid[3] = "";
615
616 er = nvkm_enum_find(gf100_fifo_fault_reason, reason);
617 if (!er)
618 snprintf(erunk, sizeof(erunk), "UNK%02X", reason);
619
620 eu = nvkm_enum_find(gf100_fifo_fault_engine, unit);
621 if (eu) {
622 switch (eu->data2) {
623 case NVDEV_SUBDEV_BAR:
624 nv_mask(priv, 0x001704, 0x00000000, 0x00000000);
625 break;
626 case NVDEV_SUBDEV_INSTMEM:
627 nv_mask(priv, 0x001714, 0x00000000, 0x00000000);
628 break;
629 case NVDEV_ENGINE_IFB:
630 nv_mask(priv, 0x001718, 0x00000000, 0x00000000);
631 break;
632 default:
633 engine = nvkm_engine(priv, eu->data2);
634 if (engine)
635 engctx = nvkm_engctx_get(engine, inst);
636 break;
637 }
638 } else {
639 snprintf(euunk, sizeof(euunk), "UNK%02x", unit);
640 }
641
642 if (hub) {
643 ec = nvkm_enum_find(gf100_fifo_fault_hubclient, client);
644 } else {
645 ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, client);
646 snprintf(gpcid, sizeof(gpcid), "%d", gpc);
647 }
648
649 if (!ec)
650 snprintf(ecunk, sizeof(ecunk), "UNK%02x", client);
651
652 nv_error(priv, "%s fault at 0x%010llx [%s] from %s/%s%s%s%s on "
653 "channel 0x%010llx [%s]\n", write ? "write" : "read",
654 (u64)vahi << 32 | valo, er ? er->name : erunk,
655 eu ? eu->name : euunk, hub ? "" : "GPC", gpcid, hub ? "" : "/",
656 ec ? ec->name : ecunk, (u64)inst << 12,
657 nvkm_client_name(engctx));
658
659 object = engctx;
660 while (object) {
661 switch (nv_mclass(object)) {
662 case FERMI_CHANNEL_GPFIFO:
663 gf100_fifo_recover(priv, engine, (void *)object);
664 break;
665 }
666 object = object->parent;
667 }
668
669 nvkm_engctx_put(engctx);
670 }
671
672 static const struct nvkm_bitfield
673 gf100_fifo_pbdma_intr[] = {
674 /* { 0x00008000, "" } seen with null ib push */
675 { 0x00200000, "ILLEGAL_MTHD" },
676 { 0x00800000, "EMPTY_SUBC" },
677 {}
678 };
679
680 static void
gf100_fifo_intr_pbdma(struct gf100_fifo_priv * priv,int unit)681 gf100_fifo_intr_pbdma(struct gf100_fifo_priv *priv, int unit)
682 {
683 u32 stat = nv_rd32(priv, 0x040108 + (unit * 0x2000));
684 u32 addr = nv_rd32(priv, 0x0400c0 + (unit * 0x2000));
685 u32 data = nv_rd32(priv, 0x0400c4 + (unit * 0x2000));
686 u32 chid = nv_rd32(priv, 0x040120 + (unit * 0x2000)) & 0x7f;
687 u32 subc = (addr & 0x00070000) >> 16;
688 u32 mthd = (addr & 0x00003ffc);
689 u32 show = stat;
690
691 if (stat & 0x00800000) {
692 if (!gf100_fifo_swmthd(priv, chid, mthd, data))
693 show &= ~0x00800000;
694 }
695
696 if (show) {
697 nv_error(priv, "PBDMA%d:", unit);
698 nvkm_bitfield_print(gf100_fifo_pbdma_intr, show);
699 pr_cont("\n");
700 nv_error(priv,
701 "PBDMA%d: ch %d [%s] subc %d mthd 0x%04x data 0x%08x\n",
702 unit, chid,
703 nvkm_client_name_for_fifo_chid(&priv->base, chid),
704 subc, mthd, data);
705 }
706
707 nv_wr32(priv, 0x0400c0 + (unit * 0x2000), 0x80600008);
708 nv_wr32(priv, 0x040108 + (unit * 0x2000), stat);
709 }
710
711 static void
gf100_fifo_intr_runlist(struct gf100_fifo_priv * priv)712 gf100_fifo_intr_runlist(struct gf100_fifo_priv *priv)
713 {
714 u32 intr = nv_rd32(priv, 0x002a00);
715
716 if (intr & 0x10000000) {
717 wake_up(&priv->runlist.wait);
718 nv_wr32(priv, 0x002a00, 0x10000000);
719 intr &= ~0x10000000;
720 }
721
722 if (intr) {
723 nv_error(priv, "RUNLIST 0x%08x\n", intr);
724 nv_wr32(priv, 0x002a00, intr);
725 }
726 }
727
728 static void
gf100_fifo_intr_engine_unit(struct gf100_fifo_priv * priv,int engn)729 gf100_fifo_intr_engine_unit(struct gf100_fifo_priv *priv, int engn)
730 {
731 u32 intr = nv_rd32(priv, 0x0025a8 + (engn * 0x04));
732 u32 inte = nv_rd32(priv, 0x002628);
733 u32 unkn;
734
735 nv_wr32(priv, 0x0025a8 + (engn * 0x04), intr);
736
737 for (unkn = 0; unkn < 8; unkn++) {
738 u32 ints = (intr >> (unkn * 0x04)) & inte;
739 if (ints & 0x1) {
740 nvkm_fifo_uevent(&priv->base);
741 ints &= ~1;
742 }
743 if (ints) {
744 nv_error(priv, "ENGINE %d %d %01x", engn, unkn, ints);
745 nv_mask(priv, 0x002628, ints, 0);
746 }
747 }
748 }
749
750 static void
gf100_fifo_intr_engine(struct gf100_fifo_priv * priv)751 gf100_fifo_intr_engine(struct gf100_fifo_priv *priv)
752 {
753 u32 mask = nv_rd32(priv, 0x0025a4);
754 while (mask) {
755 u32 unit = __ffs(mask);
756 gf100_fifo_intr_engine_unit(priv, unit);
757 mask &= ~(1 << unit);
758 }
759 }
760
761 static void
gf100_fifo_intr(struct nvkm_subdev * subdev)762 gf100_fifo_intr(struct nvkm_subdev *subdev)
763 {
764 struct gf100_fifo_priv *priv = (void *)subdev;
765 u32 mask = nv_rd32(priv, 0x002140);
766 u32 stat = nv_rd32(priv, 0x002100) & mask;
767
768 if (stat & 0x00000001) {
769 u32 intr = nv_rd32(priv, 0x00252c);
770 nv_warn(priv, "INTR 0x00000001: 0x%08x\n", intr);
771 nv_wr32(priv, 0x002100, 0x00000001);
772 stat &= ~0x00000001;
773 }
774
775 if (stat & 0x00000100) {
776 gf100_fifo_intr_sched(priv);
777 nv_wr32(priv, 0x002100, 0x00000100);
778 stat &= ~0x00000100;
779 }
780
781 if (stat & 0x00010000) {
782 u32 intr = nv_rd32(priv, 0x00256c);
783 nv_warn(priv, "INTR 0x00010000: 0x%08x\n", intr);
784 nv_wr32(priv, 0x002100, 0x00010000);
785 stat &= ~0x00010000;
786 }
787
788 if (stat & 0x01000000) {
789 u32 intr = nv_rd32(priv, 0x00258c);
790 nv_warn(priv, "INTR 0x01000000: 0x%08x\n", intr);
791 nv_wr32(priv, 0x002100, 0x01000000);
792 stat &= ~0x01000000;
793 }
794
795 if (stat & 0x10000000) {
796 u32 mask = nv_rd32(priv, 0x00259c);
797 while (mask) {
798 u32 unit = __ffs(mask);
799 gf100_fifo_intr_fault(priv, unit);
800 nv_wr32(priv, 0x00259c, (1 << unit));
801 mask &= ~(1 << unit);
802 }
803 stat &= ~0x10000000;
804 }
805
806 if (stat & 0x20000000) {
807 u32 mask = nv_rd32(priv, 0x0025a0);
808 while (mask) {
809 u32 unit = __ffs(mask);
810 gf100_fifo_intr_pbdma(priv, unit);
811 nv_wr32(priv, 0x0025a0, (1 << unit));
812 mask &= ~(1 << unit);
813 }
814 stat &= ~0x20000000;
815 }
816
817 if (stat & 0x40000000) {
818 gf100_fifo_intr_runlist(priv);
819 stat &= ~0x40000000;
820 }
821
822 if (stat & 0x80000000) {
823 gf100_fifo_intr_engine(priv);
824 stat &= ~0x80000000;
825 }
826
827 if (stat) {
828 nv_error(priv, "INTR 0x%08x\n", stat);
829 nv_mask(priv, 0x002140, stat, 0x00000000);
830 nv_wr32(priv, 0x002100, stat);
831 }
832 }
833
834 static void
gf100_fifo_uevent_init(struct nvkm_event * event,int type,int index)835 gf100_fifo_uevent_init(struct nvkm_event *event, int type, int index)
836 {
837 struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
838 nv_mask(fifo, 0x002140, 0x80000000, 0x80000000);
839 }
840
841 static void
gf100_fifo_uevent_fini(struct nvkm_event * event,int type,int index)842 gf100_fifo_uevent_fini(struct nvkm_event *event, int type, int index)
843 {
844 struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), uevent);
845 nv_mask(fifo, 0x002140, 0x80000000, 0x00000000);
846 }
847
848 static const struct nvkm_event_func
849 gf100_fifo_uevent_func = {
850 .ctor = nvkm_fifo_uevent_ctor,
851 .init = gf100_fifo_uevent_init,
852 .fini = gf100_fifo_uevent_fini,
853 };
854
855 static int
gf100_fifo_ctor(struct nvkm_object * parent,struct nvkm_object * engine,struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_object ** pobject)856 gf100_fifo_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
857 struct nvkm_oclass *oclass, void *data, u32 size,
858 struct nvkm_object **pobject)
859 {
860 struct gf100_fifo_priv *priv;
861 int ret;
862
863 ret = nvkm_fifo_create(parent, engine, oclass, 0, 127, &priv);
864 *pobject = nv_object(priv);
865 if (ret)
866 return ret;
867
868 INIT_WORK(&priv->fault, gf100_fifo_recover_work);
869
870 ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x1000, 0x1000, 0,
871 &priv->runlist.mem[0]);
872 if (ret)
873 return ret;
874
875 ret = nvkm_gpuobj_new(nv_object(priv), NULL, 0x1000, 0x1000, 0,
876 &priv->runlist.mem[1]);
877 if (ret)
878 return ret;
879
880 init_waitqueue_head(&priv->runlist.wait);
881
882 ret = nvkm_gpuobj_new(nv_object(priv), NULL, 128 * 0x1000, 0x1000, 0,
883 &priv->user.mem);
884 if (ret)
885 return ret;
886
887 ret = nvkm_gpuobj_map(priv->user.mem, NV_MEM_ACCESS_RW,
888 &priv->user.bar);
889 if (ret)
890 return ret;
891
892 ret = nvkm_event_init(&gf100_fifo_uevent_func, 1, 1, &priv->base.uevent);
893 if (ret)
894 return ret;
895
896 nv_subdev(priv)->unit = 0x00000100;
897 nv_subdev(priv)->intr = gf100_fifo_intr;
898 nv_engine(priv)->cclass = &gf100_fifo_cclass;
899 nv_engine(priv)->sclass = gf100_fifo_sclass;
900 return 0;
901 }
902
903 static void
gf100_fifo_dtor(struct nvkm_object * object)904 gf100_fifo_dtor(struct nvkm_object *object)
905 {
906 struct gf100_fifo_priv *priv = (void *)object;
907
908 nvkm_gpuobj_unmap(&priv->user.bar);
909 nvkm_gpuobj_ref(NULL, &priv->user.mem);
910 nvkm_gpuobj_ref(NULL, &priv->runlist.mem[0]);
911 nvkm_gpuobj_ref(NULL, &priv->runlist.mem[1]);
912
913 nvkm_fifo_destroy(&priv->base);
914 }
915
916 static int
gf100_fifo_init(struct nvkm_object * object)917 gf100_fifo_init(struct nvkm_object *object)
918 {
919 struct gf100_fifo_priv *priv = (void *)object;
920 int ret, i;
921
922 ret = nvkm_fifo_init(&priv->base);
923 if (ret)
924 return ret;
925
926 nv_wr32(priv, 0x000204, 0xffffffff);
927 nv_wr32(priv, 0x002204, 0xffffffff);
928
929 priv->spoon_nr = hweight32(nv_rd32(priv, 0x002204));
930 nv_debug(priv, "%d PBDMA unit(s)\n", priv->spoon_nr);
931
932 /* assign engines to PBDMAs */
933 if (priv->spoon_nr >= 3) {
934 nv_wr32(priv, 0x002208, ~(1 << 0)); /* PGRAPH */
935 nv_wr32(priv, 0x00220c, ~(1 << 1)); /* PVP */
936 nv_wr32(priv, 0x002210, ~(1 << 1)); /* PMSPP */
937 nv_wr32(priv, 0x002214, ~(1 << 1)); /* PMSVLD */
938 nv_wr32(priv, 0x002218, ~(1 << 2)); /* PCE0 */
939 nv_wr32(priv, 0x00221c, ~(1 << 1)); /* PCE1 */
940 }
941
942 /* PBDMA[n] */
943 for (i = 0; i < priv->spoon_nr; i++) {
944 nv_mask(priv, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
945 nv_wr32(priv, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
946 nv_wr32(priv, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
947 }
948
949 nv_mask(priv, 0x002200, 0x00000001, 0x00000001);
950 nv_wr32(priv, 0x002254, 0x10000000 | priv->user.bar.offset >> 12);
951
952 nv_wr32(priv, 0x002100, 0xffffffff);
953 nv_wr32(priv, 0x002140, 0x7fffffff);
954 nv_wr32(priv, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
955 return 0;
956 }
957
958 struct nvkm_oclass *
959 gf100_fifo_oclass = &(struct nvkm_oclass) {
960 .handle = NV_ENGINE(FIFO, 0xc0),
961 .ofuncs = &(struct nvkm_ofuncs) {
962 .ctor = gf100_fifo_ctor,
963 .dtor = gf100_fifo_dtor,
964 .init = gf100_fifo_init,
965 .fini = _nvkm_fifo_fini,
966 },
967 };
968