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 "gf100.h"
25 #include "changf100.h"
26
27 #include <core/client.h>
28 #include <core/enum.h>
29 #include <core/gpuobj.h>
30 #include <subdev/bar.h>
31 #include <subdev/fault.h>
32 #include <engine/sw.h>
33
34 #include <nvif/class.h>
35
36 static void
gf100_fifo_uevent_init(struct nvkm_fifo * fifo)37 gf100_fifo_uevent_init(struct nvkm_fifo *fifo)
38 {
39 struct nvkm_device *device = fifo->engine.subdev.device;
40 nvkm_mask(device, 0x002140, 0x80000000, 0x80000000);
41 }
42
43 static void
gf100_fifo_uevent_fini(struct nvkm_fifo * fifo)44 gf100_fifo_uevent_fini(struct nvkm_fifo *fifo)
45 {
46 struct nvkm_device *device = fifo->engine.subdev.device;
47 nvkm_mask(device, 0x002140, 0x80000000, 0x00000000);
48 }
49
50 void
gf100_fifo_runlist_commit(struct gf100_fifo * fifo)51 gf100_fifo_runlist_commit(struct gf100_fifo *fifo)
52 {
53 struct gf100_fifo_chan *chan;
54 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
55 struct nvkm_device *device = subdev->device;
56 struct nvkm_memory *cur;
57 int nr = 0;
58 int target;
59
60 mutex_lock(&subdev->mutex);
61 cur = fifo->runlist.mem[fifo->runlist.active];
62 fifo->runlist.active = !fifo->runlist.active;
63
64 nvkm_kmap(cur);
65 list_for_each_entry(chan, &fifo->chan, head) {
66 nvkm_wo32(cur, (nr * 8) + 0, chan->base.chid);
67 nvkm_wo32(cur, (nr * 8) + 4, 0x00000004);
68 nr++;
69 }
70 nvkm_done(cur);
71
72 switch (nvkm_memory_target(cur)) {
73 case NVKM_MEM_TARGET_VRAM: target = 0; break;
74 case NVKM_MEM_TARGET_NCOH: target = 3; break;
75 default:
76 mutex_unlock(&subdev->mutex);
77 WARN_ON(1);
78 return;
79 }
80
81 nvkm_wr32(device, 0x002270, (nvkm_memory_addr(cur) >> 12) |
82 (target << 28));
83 nvkm_wr32(device, 0x002274, 0x01f00000 | nr);
84
85 if (wait_event_timeout(fifo->runlist.wait,
86 !(nvkm_rd32(device, 0x00227c) & 0x00100000),
87 msecs_to_jiffies(2000)) == 0)
88 nvkm_error(subdev, "runlist update timeout\n");
89 mutex_unlock(&subdev->mutex);
90 }
91
92 void
gf100_fifo_runlist_remove(struct gf100_fifo * fifo,struct gf100_fifo_chan * chan)93 gf100_fifo_runlist_remove(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
94 {
95 mutex_lock(&fifo->base.engine.subdev.mutex);
96 list_del_init(&chan->head);
97 mutex_unlock(&fifo->base.engine.subdev.mutex);
98 }
99
100 void
gf100_fifo_runlist_insert(struct gf100_fifo * fifo,struct gf100_fifo_chan * chan)101 gf100_fifo_runlist_insert(struct gf100_fifo *fifo, struct gf100_fifo_chan *chan)
102 {
103 mutex_lock(&fifo->base.engine.subdev.mutex);
104 list_add_tail(&chan->head, &fifo->chan);
105 mutex_unlock(&fifo->base.engine.subdev.mutex);
106 }
107
108 static inline int
gf100_fifo_engidx(struct gf100_fifo * fifo,u32 engn)109 gf100_fifo_engidx(struct gf100_fifo *fifo, u32 engn)
110 {
111 switch (engn) {
112 case NVKM_ENGINE_GR : engn = 0; break;
113 case NVKM_ENGINE_MSVLD : engn = 1; break;
114 case NVKM_ENGINE_MSPPP : engn = 2; break;
115 case NVKM_ENGINE_MSPDEC: engn = 3; break;
116 case NVKM_ENGINE_CE0 : engn = 4; break;
117 case NVKM_ENGINE_CE1 : engn = 5; break;
118 default:
119 return -1;
120 }
121
122 return engn;
123 }
124
125 static inline struct nvkm_engine *
gf100_fifo_engine(struct gf100_fifo * fifo,u32 engn)126 gf100_fifo_engine(struct gf100_fifo *fifo, u32 engn)
127 {
128 struct nvkm_device *device = fifo->base.engine.subdev.device;
129
130 switch (engn) {
131 case 0: engn = NVKM_ENGINE_GR; break;
132 case 1: engn = NVKM_ENGINE_MSVLD; break;
133 case 2: engn = NVKM_ENGINE_MSPPP; break;
134 case 3: engn = NVKM_ENGINE_MSPDEC; break;
135 case 4: engn = NVKM_ENGINE_CE0; break;
136 case 5: engn = NVKM_ENGINE_CE1; break;
137 default:
138 return NULL;
139 }
140
141 return nvkm_device_engine(device, engn);
142 }
143
144 static void
gf100_fifo_recover_work(struct work_struct * w)145 gf100_fifo_recover_work(struct work_struct *w)
146 {
147 struct gf100_fifo *fifo = container_of(w, typeof(*fifo), recover.work);
148 struct nvkm_device *device = fifo->base.engine.subdev.device;
149 struct nvkm_engine *engine;
150 unsigned long flags;
151 u32 engn, engm = 0;
152 u64 mask, todo;
153
154 spin_lock_irqsave(&fifo->base.lock, flags);
155 mask = fifo->recover.mask;
156 fifo->recover.mask = 0ULL;
157 spin_unlock_irqrestore(&fifo->base.lock, flags);
158
159 for (todo = mask; engn = __ffs64(todo), todo; todo &= ~BIT_ULL(engn))
160 engm |= 1 << gf100_fifo_engidx(fifo, engn);
161 nvkm_mask(device, 0x002630, engm, engm);
162
163 for (todo = mask; engn = __ffs64(todo), todo; todo &= ~BIT_ULL(engn)) {
164 if ((engine = nvkm_device_engine(device, engn))) {
165 nvkm_subdev_fini(&engine->subdev, false);
166 WARN_ON(nvkm_subdev_init(&engine->subdev));
167 }
168 }
169
170 gf100_fifo_runlist_commit(fifo);
171 nvkm_wr32(device, 0x00262c, engm);
172 nvkm_mask(device, 0x002630, engm, 0x00000000);
173 }
174
175 static void
gf100_fifo_recover(struct gf100_fifo * fifo,struct nvkm_engine * engine,struct gf100_fifo_chan * chan)176 gf100_fifo_recover(struct gf100_fifo *fifo, struct nvkm_engine *engine,
177 struct gf100_fifo_chan *chan)
178 {
179 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
180 struct nvkm_device *device = subdev->device;
181 u32 chid = chan->base.chid;
182
183 nvkm_error(subdev, "%s engine fault on channel %d, recovering...\n",
184 nvkm_subdev_name[engine->subdev.index], chid);
185 assert_spin_locked(&fifo->base.lock);
186
187 nvkm_mask(device, 0x003004 + (chid * 0x08), 0x00000001, 0x00000000);
188 list_del_init(&chan->head);
189 chan->killed = true;
190
191 if (engine != &fifo->base.engine)
192 fifo->recover.mask |= 1ULL << engine->subdev.index;
193 schedule_work(&fifo->recover.work);
194 nvkm_fifo_kevent(&fifo->base, chid);
195 }
196
197 static const struct nvkm_enum
198 gf100_fifo_fault_engine[] = {
199 { 0x00, "PGRAPH", NULL, NVKM_ENGINE_GR },
200 { 0x03, "PEEPHOLE", NULL, NVKM_ENGINE_IFB },
201 { 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
202 { 0x05, "BAR3", NULL, NVKM_SUBDEV_INSTMEM },
203 { 0x07, "PFIFO", NULL, NVKM_ENGINE_FIFO },
204 { 0x10, "PMSVLD", NULL, NVKM_ENGINE_MSVLD },
205 { 0x11, "PMSPPP", NULL, NVKM_ENGINE_MSPPP },
206 { 0x13, "PCOUNTER" },
207 { 0x14, "PMSPDEC", NULL, NVKM_ENGINE_MSPDEC },
208 { 0x15, "PCE0", NULL, NVKM_ENGINE_CE0 },
209 { 0x16, "PCE1", NULL, NVKM_ENGINE_CE1 },
210 { 0x17, "PMU" },
211 {}
212 };
213
214 static const struct nvkm_enum
215 gf100_fifo_fault_reason[] = {
216 { 0x00, "PT_NOT_PRESENT" },
217 { 0x01, "PT_TOO_SHORT" },
218 { 0x02, "PAGE_NOT_PRESENT" },
219 { 0x03, "VM_LIMIT_EXCEEDED" },
220 { 0x04, "NO_CHANNEL" },
221 { 0x05, "PAGE_SYSTEM_ONLY" },
222 { 0x06, "PAGE_READ_ONLY" },
223 { 0x0a, "COMPRESSED_SYSRAM" },
224 { 0x0c, "INVALID_STORAGE_TYPE" },
225 {}
226 };
227
228 static const struct nvkm_enum
229 gf100_fifo_fault_hubclient[] = {
230 { 0x01, "PCOPY0" },
231 { 0x02, "PCOPY1" },
232 { 0x04, "DISPATCH" },
233 { 0x05, "CTXCTL" },
234 { 0x06, "PFIFO" },
235 { 0x07, "BAR_READ" },
236 { 0x08, "BAR_WRITE" },
237 { 0x0b, "PVP" },
238 { 0x0c, "PMSPPP" },
239 { 0x0d, "PMSVLD" },
240 { 0x11, "PCOUNTER" },
241 { 0x12, "PMU" },
242 { 0x14, "CCACHE" },
243 { 0x15, "CCACHE_POST" },
244 {}
245 };
246
247 static const struct nvkm_enum
248 gf100_fifo_fault_gpcclient[] = {
249 { 0x01, "TEX" },
250 { 0x0c, "ESETUP" },
251 { 0x0e, "CTXCTL" },
252 { 0x0f, "PROP" },
253 {}
254 };
255
256 static void
gf100_fifo_fault(struct nvkm_fifo * base,struct nvkm_fault_data * info)257 gf100_fifo_fault(struct nvkm_fifo *base, struct nvkm_fault_data *info)
258 {
259 struct gf100_fifo *fifo = gf100_fifo(base);
260 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
261 struct nvkm_device *device = subdev->device;
262 const struct nvkm_enum *er, *eu, *ec;
263 struct nvkm_engine *engine = NULL;
264 struct nvkm_fifo_chan *chan;
265 unsigned long flags;
266 char gpcid[8] = "";
267
268 er = nvkm_enum_find(gf100_fifo_fault_reason, info->reason);
269 eu = nvkm_enum_find(gf100_fifo_fault_engine, info->engine);
270 if (info->hub) {
271 ec = nvkm_enum_find(gf100_fifo_fault_hubclient, info->client);
272 } else {
273 ec = nvkm_enum_find(gf100_fifo_fault_gpcclient, info->client);
274 snprintf(gpcid, sizeof(gpcid), "GPC%d/", info->gpc);
275 }
276
277 if (eu && eu->data2) {
278 switch (eu->data2) {
279 case NVKM_SUBDEV_BAR:
280 nvkm_bar_bar1_reset(device);
281 break;
282 case NVKM_SUBDEV_INSTMEM:
283 nvkm_bar_bar2_reset(device);
284 break;
285 case NVKM_ENGINE_IFB:
286 nvkm_mask(device, 0x001718, 0x00000000, 0x00000000);
287 break;
288 default:
289 engine = nvkm_device_engine(device, eu->data2);
290 break;
291 }
292 }
293
294 chan = nvkm_fifo_chan_inst(&fifo->base, info->inst, &flags);
295
296 nvkm_error(subdev,
297 "%s fault at %010llx engine %02x [%s] client %02x [%s%s] "
298 "reason %02x [%s] on channel %d [%010llx %s]\n",
299 info->access ? "write" : "read", info->addr,
300 info->engine, eu ? eu->name : "",
301 info->client, gpcid, ec ? ec->name : "",
302 info->reason, er ? er->name : "", chan ? chan->chid : -1,
303 info->inst, chan ? chan->object.client->name : "unknown");
304
305 if (engine && chan)
306 gf100_fifo_recover(fifo, engine, (void *)chan);
307 nvkm_fifo_chan_put(&fifo->base, flags, &chan);
308 }
309
310 static const struct nvkm_enum
311 gf100_fifo_sched_reason[] = {
312 { 0x0a, "CTXSW_TIMEOUT" },
313 {}
314 };
315
316 static void
gf100_fifo_intr_sched_ctxsw(struct gf100_fifo * fifo)317 gf100_fifo_intr_sched_ctxsw(struct gf100_fifo *fifo)
318 {
319 struct nvkm_device *device = fifo->base.engine.subdev.device;
320 struct nvkm_engine *engine;
321 struct gf100_fifo_chan *chan;
322 unsigned long flags;
323 u32 engn;
324
325 spin_lock_irqsave(&fifo->base.lock, flags);
326 for (engn = 0; engn < 6; engn++) {
327 u32 stat = nvkm_rd32(device, 0x002640 + (engn * 0x04));
328 u32 busy = (stat & 0x80000000);
329 u32 save = (stat & 0x00100000); /* maybe? */
330 u32 unk0 = (stat & 0x00040000);
331 u32 unk1 = (stat & 0x00001000);
332 u32 chid = (stat & 0x0000007f);
333 (void)save;
334
335 if (busy && unk0 && unk1) {
336 list_for_each_entry(chan, &fifo->chan, head) {
337 if (chan->base.chid == chid) {
338 engine = gf100_fifo_engine(fifo, engn);
339 if (!engine)
340 break;
341 gf100_fifo_recover(fifo, engine, chan);
342 break;
343 }
344 }
345 }
346 }
347 spin_unlock_irqrestore(&fifo->base.lock, flags);
348 }
349
350 static void
gf100_fifo_intr_sched(struct gf100_fifo * fifo)351 gf100_fifo_intr_sched(struct gf100_fifo *fifo)
352 {
353 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
354 struct nvkm_device *device = subdev->device;
355 u32 intr = nvkm_rd32(device, 0x00254c);
356 u32 code = intr & 0x000000ff;
357 const struct nvkm_enum *en;
358
359 en = nvkm_enum_find(gf100_fifo_sched_reason, code);
360
361 nvkm_error(subdev, "SCHED_ERROR %02x [%s]\n", code, en ? en->name : "");
362
363 switch (code) {
364 case 0x0a:
365 gf100_fifo_intr_sched_ctxsw(fifo);
366 break;
367 default:
368 break;
369 }
370 }
371
372 void
gf100_fifo_intr_fault(struct nvkm_fifo * fifo,int unit)373 gf100_fifo_intr_fault(struct nvkm_fifo *fifo, int unit)
374 {
375 struct nvkm_device *device = fifo->engine.subdev.device;
376 u32 inst = nvkm_rd32(device, 0x002800 + (unit * 0x10));
377 u32 valo = nvkm_rd32(device, 0x002804 + (unit * 0x10));
378 u32 vahi = nvkm_rd32(device, 0x002808 + (unit * 0x10));
379 u32 type = nvkm_rd32(device, 0x00280c + (unit * 0x10));
380 struct nvkm_fault_data info;
381
382 info.inst = (u64)inst << 12;
383 info.addr = ((u64)vahi << 32) | valo;
384 info.time = 0;
385 info.engine = unit;
386 info.valid = 1;
387 info.gpc = (type & 0x1f000000) >> 24;
388 info.client = (type & 0x00001f00) >> 8;
389 info.access = (type & 0x00000080) >> 7;
390 info.hub = (type & 0x00000040) >> 6;
391 info.reason = (type & 0x0000000f);
392
393 nvkm_fifo_fault(fifo, &info);
394 }
395
396 static const struct nvkm_bitfield
397 gf100_fifo_pbdma_intr[] = {
398 /* { 0x00008000, "" } seen with null ib push */
399 { 0x00200000, "ILLEGAL_MTHD" },
400 { 0x00800000, "EMPTY_SUBC" },
401 {}
402 };
403
404 static void
gf100_fifo_intr_pbdma(struct gf100_fifo * fifo,int unit)405 gf100_fifo_intr_pbdma(struct gf100_fifo *fifo, int unit)
406 {
407 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
408 struct nvkm_device *device = subdev->device;
409 u32 stat = nvkm_rd32(device, 0x040108 + (unit * 0x2000));
410 u32 addr = nvkm_rd32(device, 0x0400c0 + (unit * 0x2000));
411 u32 data = nvkm_rd32(device, 0x0400c4 + (unit * 0x2000));
412 u32 chid = nvkm_rd32(device, 0x040120 + (unit * 0x2000)) & 0x7f;
413 u32 subc = (addr & 0x00070000) >> 16;
414 u32 mthd = (addr & 0x00003ffc);
415 struct nvkm_fifo_chan *chan;
416 unsigned long flags;
417 u32 show= stat;
418 char msg[128];
419
420 if (stat & 0x00800000) {
421 if (device->sw) {
422 if (nvkm_sw_mthd(device->sw, chid, subc, mthd, data))
423 show &= ~0x00800000;
424 }
425 }
426
427 if (show) {
428 nvkm_snprintbf(msg, sizeof(msg), gf100_fifo_pbdma_intr, show);
429 chan = nvkm_fifo_chan_chid(&fifo->base, chid, &flags);
430 nvkm_error(subdev, "PBDMA%d: %08x [%s] ch %d [%010llx %s] "
431 "subc %d mthd %04x data %08x\n",
432 unit, show, msg, chid, chan ? chan->inst->addr : 0,
433 chan ? chan->object.client->name : "unknown",
434 subc, mthd, data);
435 nvkm_fifo_chan_put(&fifo->base, flags, &chan);
436 }
437
438 nvkm_wr32(device, 0x0400c0 + (unit * 0x2000), 0x80600008);
439 nvkm_wr32(device, 0x040108 + (unit * 0x2000), stat);
440 }
441
442 static void
gf100_fifo_intr_runlist(struct gf100_fifo * fifo)443 gf100_fifo_intr_runlist(struct gf100_fifo *fifo)
444 {
445 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
446 struct nvkm_device *device = subdev->device;
447 u32 intr = nvkm_rd32(device, 0x002a00);
448
449 if (intr & 0x10000000) {
450 wake_up(&fifo->runlist.wait);
451 nvkm_wr32(device, 0x002a00, 0x10000000);
452 intr &= ~0x10000000;
453 }
454
455 if (intr) {
456 nvkm_error(subdev, "RUNLIST %08x\n", intr);
457 nvkm_wr32(device, 0x002a00, intr);
458 }
459 }
460
461 static void
gf100_fifo_intr_engine_unit(struct gf100_fifo * fifo,int engn)462 gf100_fifo_intr_engine_unit(struct gf100_fifo *fifo, int engn)
463 {
464 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
465 struct nvkm_device *device = subdev->device;
466 u32 intr = nvkm_rd32(device, 0x0025a8 + (engn * 0x04));
467 u32 inte = nvkm_rd32(device, 0x002628);
468 u32 unkn;
469
470 nvkm_wr32(device, 0x0025a8 + (engn * 0x04), intr);
471
472 for (unkn = 0; unkn < 8; unkn++) {
473 u32 ints = (intr >> (unkn * 0x04)) & inte;
474 if (ints & 0x1) {
475 nvkm_fifo_uevent(&fifo->base);
476 ints &= ~1;
477 }
478 if (ints) {
479 nvkm_error(subdev, "ENGINE %d %d %01x",
480 engn, unkn, ints);
481 nvkm_mask(device, 0x002628, ints, 0);
482 }
483 }
484 }
485
486 void
gf100_fifo_intr_engine(struct gf100_fifo * fifo)487 gf100_fifo_intr_engine(struct gf100_fifo *fifo)
488 {
489 struct nvkm_device *device = fifo->base.engine.subdev.device;
490 u32 mask = nvkm_rd32(device, 0x0025a4);
491 while (mask) {
492 u32 unit = __ffs(mask);
493 gf100_fifo_intr_engine_unit(fifo, unit);
494 mask &= ~(1 << unit);
495 }
496 }
497
498 static void
gf100_fifo_intr(struct nvkm_fifo * base)499 gf100_fifo_intr(struct nvkm_fifo *base)
500 {
501 struct gf100_fifo *fifo = gf100_fifo(base);
502 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
503 struct nvkm_device *device = subdev->device;
504 u32 mask = nvkm_rd32(device, 0x002140);
505 u32 stat = nvkm_rd32(device, 0x002100) & mask;
506
507 if (stat & 0x00000001) {
508 u32 intr = nvkm_rd32(device, 0x00252c);
509 nvkm_warn(subdev, "INTR 00000001: %08x\n", intr);
510 nvkm_wr32(device, 0x002100, 0x00000001);
511 stat &= ~0x00000001;
512 }
513
514 if (stat & 0x00000100) {
515 gf100_fifo_intr_sched(fifo);
516 nvkm_wr32(device, 0x002100, 0x00000100);
517 stat &= ~0x00000100;
518 }
519
520 if (stat & 0x00010000) {
521 u32 intr = nvkm_rd32(device, 0x00256c);
522 nvkm_warn(subdev, "INTR 00010000: %08x\n", intr);
523 nvkm_wr32(device, 0x002100, 0x00010000);
524 stat &= ~0x00010000;
525 }
526
527 if (stat & 0x01000000) {
528 u32 intr = nvkm_rd32(device, 0x00258c);
529 nvkm_warn(subdev, "INTR 01000000: %08x\n", intr);
530 nvkm_wr32(device, 0x002100, 0x01000000);
531 stat &= ~0x01000000;
532 }
533
534 if (stat & 0x10000000) {
535 u32 mask = nvkm_rd32(device, 0x00259c);
536 while (mask) {
537 u32 unit = __ffs(mask);
538 gf100_fifo_intr_fault(&fifo->base, unit);
539 nvkm_wr32(device, 0x00259c, (1 << unit));
540 mask &= ~(1 << unit);
541 }
542 stat &= ~0x10000000;
543 }
544
545 if (stat & 0x20000000) {
546 u32 mask = nvkm_rd32(device, 0x0025a0);
547 while (mask) {
548 u32 unit = __ffs(mask);
549 gf100_fifo_intr_pbdma(fifo, unit);
550 nvkm_wr32(device, 0x0025a0, (1 << unit));
551 mask &= ~(1 << unit);
552 }
553 stat &= ~0x20000000;
554 }
555
556 if (stat & 0x40000000) {
557 gf100_fifo_intr_runlist(fifo);
558 stat &= ~0x40000000;
559 }
560
561 if (stat & 0x80000000) {
562 gf100_fifo_intr_engine(fifo);
563 stat &= ~0x80000000;
564 }
565
566 if (stat) {
567 nvkm_error(subdev, "INTR %08x\n", stat);
568 nvkm_mask(device, 0x002140, stat, 0x00000000);
569 nvkm_wr32(device, 0x002100, stat);
570 }
571 }
572
573 static int
gf100_fifo_oneinit(struct nvkm_fifo * base)574 gf100_fifo_oneinit(struct nvkm_fifo *base)
575 {
576 struct gf100_fifo *fifo = gf100_fifo(base);
577 struct nvkm_subdev *subdev = &fifo->base.engine.subdev;
578 struct nvkm_device *device = subdev->device;
579 struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
580 int ret;
581
582 /* Determine number of PBDMAs by checking valid enable bits. */
583 nvkm_wr32(device, 0x002204, 0xffffffff);
584 fifo->pbdma_nr = hweight32(nvkm_rd32(device, 0x002204));
585 nvkm_debug(subdev, "%d PBDMA(s)\n", fifo->pbdma_nr);
586
587
588 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
589 false, &fifo->runlist.mem[0]);
590 if (ret)
591 return ret;
592
593 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0x1000,
594 false, &fifo->runlist.mem[1]);
595 if (ret)
596 return ret;
597
598 init_waitqueue_head(&fifo->runlist.wait);
599
600 ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 128 * 0x1000,
601 0x1000, false, &fifo->user.mem);
602 if (ret)
603 return ret;
604
605 ret = nvkm_vmm_get(bar, 12, nvkm_memory_size(fifo->user.mem),
606 &fifo->user.bar);
607 if (ret)
608 return ret;
609
610 return nvkm_memory_map(fifo->user.mem, 0, bar, fifo->user.bar, NULL, 0);
611 }
612
613 static void
gf100_fifo_fini(struct nvkm_fifo * base)614 gf100_fifo_fini(struct nvkm_fifo *base)
615 {
616 struct gf100_fifo *fifo = gf100_fifo(base);
617 flush_work(&fifo->recover.work);
618 }
619
620 static void
gf100_fifo_init(struct nvkm_fifo * base)621 gf100_fifo_init(struct nvkm_fifo *base)
622 {
623 struct gf100_fifo *fifo = gf100_fifo(base);
624 struct nvkm_device *device = fifo->base.engine.subdev.device;
625 int i;
626
627 /* Enable PBDMAs. */
628 nvkm_wr32(device, 0x000204, (1 << fifo->pbdma_nr) - 1);
629 nvkm_wr32(device, 0x002204, (1 << fifo->pbdma_nr) - 1);
630
631 /* Assign engines to PBDMAs. */
632 if (fifo->pbdma_nr >= 3) {
633 nvkm_wr32(device, 0x002208, ~(1 << 0)); /* PGRAPH */
634 nvkm_wr32(device, 0x00220c, ~(1 << 1)); /* PVP */
635 nvkm_wr32(device, 0x002210, ~(1 << 1)); /* PMSPP */
636 nvkm_wr32(device, 0x002214, ~(1 << 1)); /* PMSVLD */
637 nvkm_wr32(device, 0x002218, ~(1 << 2)); /* PCE0 */
638 nvkm_wr32(device, 0x00221c, ~(1 << 1)); /* PCE1 */
639 }
640
641 /* PBDMA[n] */
642 for (i = 0; i < fifo->pbdma_nr; i++) {
643 nvkm_mask(device, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
644 nvkm_wr32(device, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */
645 nvkm_wr32(device, 0x04010c + (i * 0x2000), 0xfffffeff); /* INTREN */
646 }
647
648 nvkm_mask(device, 0x002200, 0x00000001, 0x00000001);
649 nvkm_wr32(device, 0x002254, 0x10000000 | fifo->user.bar->addr >> 12);
650
651 nvkm_wr32(device, 0x002100, 0xffffffff);
652 nvkm_wr32(device, 0x002140, 0x7fffffff);
653 nvkm_wr32(device, 0x002628, 0x00000001); /* ENGINE_INTR_EN */
654 }
655
656 static void *
gf100_fifo_dtor(struct nvkm_fifo * base)657 gf100_fifo_dtor(struct nvkm_fifo *base)
658 {
659 struct gf100_fifo *fifo = gf100_fifo(base);
660 struct nvkm_device *device = fifo->base.engine.subdev.device;
661 nvkm_vmm_put(nvkm_bar_bar1_vmm(device), &fifo->user.bar);
662 nvkm_memory_unref(&fifo->user.mem);
663 nvkm_memory_unref(&fifo->runlist.mem[0]);
664 nvkm_memory_unref(&fifo->runlist.mem[1]);
665 return fifo;
666 }
667
668 static const struct nvkm_fifo_func
669 gf100_fifo = {
670 .dtor = gf100_fifo_dtor,
671 .oneinit = gf100_fifo_oneinit,
672 .init = gf100_fifo_init,
673 .fini = gf100_fifo_fini,
674 .intr = gf100_fifo_intr,
675 .fault = gf100_fifo_fault,
676 .uevent_init = gf100_fifo_uevent_init,
677 .uevent_fini = gf100_fifo_uevent_fini,
678 .chan = {
679 &gf100_fifo_gpfifo_oclass,
680 NULL
681 },
682 };
683
684 int
gf100_fifo_new(struct nvkm_device * device,int index,struct nvkm_fifo ** pfifo)685 gf100_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
686 {
687 struct gf100_fifo *fifo;
688
689 if (!(fifo = kzalloc(sizeof(*fifo), GFP_KERNEL)))
690 return -ENOMEM;
691 INIT_LIST_HEAD(&fifo->chan);
692 INIT_WORK(&fifo->recover.work, gf100_fifo_recover_work);
693 *pfifo = &fifo->base;
694
695 return nvkm_fifo_ctor(&gf100_fifo, device, index, 128, &fifo->base);
696 }
697