xref: /linux/drivers/gpu/drm/nouveau/nvkm/engine/fifo/ga100.c (revision 2e21dee6a46a66e4c2ced778485e1044101edee4)
1 /*
2  * Copyright 2021 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 #include "priv.h"
23 #include "cgrp.h"
24 #include "chan.h"
25 #include "chid.h"
26 #include "runl.h"
27 #include "runq.h"
28 
29 #include <core/gpuobj.h>
30 #include <subdev/gsp.h>
31 #include <subdev/top.h>
32 #include <subdev/vfn.h>
33 
34 #include <nvif/class.h>
35 
36 static u32
ga100_chan_doorbell_handle(struct nvkm_chan * chan)37 ga100_chan_doorbell_handle(struct nvkm_chan *chan)
38 {
39 	return (chan->cgrp->runl->doorbell << 16) | chan->id;
40 }
41 
42 static void
ga100_chan_stop(struct nvkm_chan * chan)43 ga100_chan_stop(struct nvkm_chan *chan)
44 {
45 	struct nvkm_runl *runl = chan->cgrp->runl;
46 
47 	nvkm_wr32(runl->fifo->engine.subdev.device, runl->chan + (chan->id * 4), 0x00000003);
48 }
49 
50 static void
ga100_chan_start(struct nvkm_chan * chan)51 ga100_chan_start(struct nvkm_chan *chan)
52 {
53 	struct nvkm_runl *runl = chan->cgrp->runl;
54 	struct nvkm_device *device = runl->fifo->engine.subdev.device;
55 	const int gfid = 0;
56 
57 	nvkm_wr32(device, runl->chan + (chan->id * 4), 0x00000002);
58 	nvkm_wr32(device, runl->addr + 0x0090, (gfid << 16) | chan->id); /* INTERNAL_DOORBELL. */
59 }
60 
61 static void
ga100_chan_unbind(struct nvkm_chan * chan)62 ga100_chan_unbind(struct nvkm_chan *chan)
63 {
64 	struct nvkm_runl *runl = chan->cgrp->runl;
65 
66 	nvkm_wr32(runl->fifo->engine.subdev.device, runl->chan + (chan->id * 4), 0xffffffff);
67 }
68 
69 static int
ga100_chan_ramfc_write(struct nvkm_chan * chan,u64 offset,u64 length,u32 devm,bool priv)70 ga100_chan_ramfc_write(struct nvkm_chan *chan, u64 offset, u64 length, u32 devm, bool priv)
71 {
72 	const u32 limit2 = ilog2(length / 8);
73 
74 	nvkm_kmap(chan->inst);
75 	nvkm_wo32(chan->inst, 0x010, 0x0000face);
76 	nvkm_wo32(chan->inst, 0x030, 0x7ffff902);
77 	nvkm_wo32(chan->inst, 0x048, lower_32_bits(offset));
78 	nvkm_wo32(chan->inst, 0x04c, upper_32_bits(offset) | (limit2 << 16));
79 	nvkm_wo32(chan->inst, 0x084, 0x20400000);
80 	nvkm_wo32(chan->inst, 0x094, 0x30000000 | devm);
81 	nvkm_wo32(chan->inst, 0x0e4, priv ? 0x00000020 : 0x00000000);
82 	nvkm_wo32(chan->inst, 0x0e8, chan->id);
83 	nvkm_wo32(chan->inst, 0x0f4, 0x00001000 | (priv ? 0x00000100 : 0x00000000));
84 	nvkm_wo32(chan->inst, 0x0f8, 0x80000000 | chan->cgrp->runl->nonstall.vector);
85 	nvkm_mo32(chan->inst, 0x218, 0x00000000, 0x00000000);
86 	nvkm_done(chan->inst);
87 	return 0;
88 }
89 
90 static const struct nvkm_chan_func_ramfc
91 ga100_chan_ramfc = {
92 	.write = ga100_chan_ramfc_write,
93 	.devm = 0xfff,
94 	.priv = true,
95 };
96 
97 const struct nvkm_chan_func
98 ga100_chan = {
99 	.inst = &gf100_chan_inst,
100 	.userd = &gv100_chan_userd,
101 	.ramfc = &ga100_chan_ramfc,
102 	.unbind = ga100_chan_unbind,
103 	.start = ga100_chan_start,
104 	.stop = ga100_chan_stop,
105 	.preempt = gk110_chan_preempt,
106 	.doorbell_handle = ga100_chan_doorbell_handle,
107 };
108 
109 static void
ga100_cgrp_preempt(struct nvkm_cgrp * cgrp)110 ga100_cgrp_preempt(struct nvkm_cgrp *cgrp)
111 {
112 	struct nvkm_runl *runl = cgrp->runl;
113 
114 	nvkm_wr32(runl->fifo->engine.subdev.device, runl->addr + 0x098, 0x01000000 | cgrp->id);
115 }
116 
117 const struct nvkm_cgrp_func
118 ga100_cgrp = {
119 	.preempt = ga100_cgrp_preempt,
120 };
121 
122 static int
ga100_engn_cxid(struct nvkm_engn * engn,bool * cgid)123 ga100_engn_cxid(struct nvkm_engn *engn, bool *cgid)
124 {
125 	struct nvkm_runl *runl = engn->runl;
126 	struct nvkm_device *device = runl->fifo->engine.subdev.device;
127 	u32 stat = nvkm_rd32(device, runl->addr + 0x200 + engn->id * 0x40);
128 
129 	ENGN_DEBUG(engn, "status %08x", stat);
130 	*cgid = true;
131 
132 	switch ((stat & 0x0000e000) >> 13) {
133 	case 0 /* INVALID */: return -ENODEV;
134 	case 1 /*   VALID */:
135 	case 5 /*    SAVE */: return (stat & 0x00000fff);
136 	case 6 /*    LOAD */: return (stat & 0x0fff0000) >> 16;
137 	case 7 /*  SWITCH */:
138 		if (nvkm_engine_chsw_load(engn->engine))
139 			return (stat & 0x0fff0000) >> 16;
140 		return (stat & 0x00000fff);
141 	default:
142 		WARN_ON(1);
143 		break;
144 	}
145 
146 	return -ENODEV;
147 }
148 
149 static int
ga100_engn_nonstall(struct nvkm_engn * engn)150 ga100_engn_nonstall(struct nvkm_engn *engn)
151 {
152 	struct nvkm_engine *engine = engn->engine;
153 
154 	if (WARN_ON(!engine->func->nonstall))
155 		return -EINVAL;
156 
157 	return engine->func->nonstall(engine);
158 }
159 
160 const struct nvkm_engn_func
161 ga100_engn = {
162 	.nonstall = ga100_engn_nonstall,
163 	.cxid = ga100_engn_cxid,
164 	.ctor = gk104_ectx_ctor,
165 	.bind = gv100_ectx_bind,
166 };
167 
168 const struct nvkm_engn_func
169 ga100_engn_ce = {
170 	.nonstall = ga100_engn_nonstall,
171 	.cxid = ga100_engn_cxid,
172 	.ctor = gv100_ectx_ce_ctor,
173 	.bind = gv100_ectx_ce_bind,
174 };
175 
176 static bool
ga100_runq_idle(struct nvkm_runq * runq)177 ga100_runq_idle(struct nvkm_runq *runq)
178 {
179 	struct nvkm_device *device = runq->fifo->engine.subdev.device;
180 
181 	return !(nvkm_rd32(device, 0x04015c + (runq->id * 0x800)) & 0x0000e000);
182 }
183 
184 static bool
ga100_runq_intr_1(struct nvkm_runq * runq,struct nvkm_runl * runl)185 ga100_runq_intr_1(struct nvkm_runq *runq, struct nvkm_runl *runl)
186 {
187 	struct nvkm_device *device = runq->fifo->engine.subdev.device;
188 	u32 inte = nvkm_rd32(device, 0x040180 + (runq->id * 0x800));
189 	u32 intr = nvkm_rd32(device, 0x040148 + (runq->id * 0x800));
190 	u32 stat = intr & inte;
191 
192 	if (!stat) {
193 		RUNQ_DEBUG(runq, "inte1 %08x %08x", intr, inte);
194 		return false;
195 	}
196 
197 	if (stat & 0x80000000) {
198 		u32 chid = nvkm_rd32(device, 0x040120 + (runq->id * 0x0800)) & runl->chid->mask;
199 		struct nvkm_chan *chan;
200 		unsigned long flags;
201 
202 		RUNQ_ERROR(runq, "CTXNOTVALID chid:%d", chid);
203 		chan = nvkm_runl_chan_get_chid(runl, chid, &flags);
204 		if (chan) {
205 			nvkm_chan_error(chan, true);
206 			nvkm_chan_put(&chan, flags);
207 		}
208 
209 		nvkm_mask(device, 0x0400ac + (runq->id * 0x800), 0x00030000, 0x00030000);
210 		stat &= ~0x80000000;
211 	}
212 
213 	if (stat) {
214 		RUNQ_ERROR(runq, "intr1 %08x", stat);
215 		nvkm_wr32(device, 0x0401a0 + (runq->id * 0x800), stat);
216 	}
217 
218 	nvkm_wr32(device, 0x040148 + (runq->id * 0x800), intr);
219 	return true;
220 }
221 
222 static bool
ga100_runq_intr_0(struct nvkm_runq * runq,struct nvkm_runl * runl)223 ga100_runq_intr_0(struct nvkm_runq *runq, struct nvkm_runl *runl)
224 {
225 	struct nvkm_device *device = runq->fifo->engine.subdev.device;
226 	u32 inte = nvkm_rd32(device, 0x040170 + (runq->id * 0x800));
227 	u32 intr = nvkm_rd32(device, 0x040108 + (runq->id * 0x800));
228 	u32 stat = intr & inte;
229 
230 	if (!stat) {
231 		RUNQ_DEBUG(runq, "inte0 %08x %08x", intr, inte);
232 		return false;
233 	}
234 
235 	/*TODO: expand on this when fixing up gf100's version. */
236 	if (stat & 0xc6afe000) {
237 		u32 chid = nvkm_rd32(device, 0x040120 + (runq->id * 0x0800)) & runl->chid->mask;
238 		struct nvkm_chan *chan;
239 		unsigned long flags;
240 
241 		RUNQ_ERROR(runq, "intr0 %08x", stat);
242 		chan = nvkm_runl_chan_get_chid(runl, chid, &flags);
243 		if (chan) {
244 			nvkm_chan_error(chan, true);
245 			nvkm_chan_put(&chan, flags);
246 		}
247 
248 		stat &= ~0xc6afe000;
249 	}
250 
251 	if (stat) {
252 		RUNQ_ERROR(runq, "intr0 %08x", stat);
253 		nvkm_wr32(device, 0x040190 + (runq->id * 0x800), stat);
254 	}
255 
256 	nvkm_wr32(device, 0x040108 + (runq->id * 0x800), intr);
257 	return true;
258 }
259 
260 static bool
ga100_runq_intr(struct nvkm_runq * runq,struct nvkm_runl * runl)261 ga100_runq_intr(struct nvkm_runq *runq, struct nvkm_runl *runl)
262 {
263 	bool intr0 = ga100_runq_intr_0(runq, runl);
264 	bool intr1 = ga100_runq_intr_1(runq, runl);
265 
266 	return intr0 || intr1;
267 }
268 
269 static void
ga100_runq_init(struct nvkm_runq * runq)270 ga100_runq_init(struct nvkm_runq *runq)
271 {
272 	struct nvkm_device *device = runq->fifo->engine.subdev.device;
273 
274 	nvkm_wr32(device, 0x040108 + (runq->id * 0x800), 0xffffffff); /* INTR_0 */
275 	nvkm_wr32(device, 0x040148 + (runq->id * 0x800), 0xffffffff); /* INTR_1 */
276 	nvkm_wr32(device, 0x040170 + (runq->id * 0x800), 0xffffffff); /* INTR_0_EN_SET_TREE */
277 	nvkm_wr32(device, 0x040180 + (runq->id * 0x800), 0xffffffff); /* INTR_1_EN_SET_TREE */
278 }
279 
280 const struct nvkm_runq_func
281 ga100_runq = {
282 	.init = ga100_runq_init,
283 	.intr = ga100_runq_intr,
284 	.idle = ga100_runq_idle,
285 };
286 
287 static bool
ga100_runl_preempt_pending(struct nvkm_runl * runl)288 ga100_runl_preempt_pending(struct nvkm_runl *runl)
289 {
290 	return nvkm_rd32(runl->fifo->engine.subdev.device, runl->addr + 0x098) & 0x00100000;
291 }
292 
293 static void
ga100_runl_preempt(struct nvkm_runl * runl)294 ga100_runl_preempt(struct nvkm_runl *runl)
295 {
296 	nvkm_wr32(runl->fifo->engine.subdev.device, runl->addr + 0x098, 0x00000000);
297 }
298 
299 static void
ga100_runl_allow(struct nvkm_runl * runl,u32 engm)300 ga100_runl_allow(struct nvkm_runl *runl, u32 engm)
301 {
302 	nvkm_mask(runl->fifo->engine.subdev.device, runl->addr + 0x094, 0x00000001, 0x00000000);
303 }
304 
305 static void
ga100_runl_block(struct nvkm_runl * runl,u32 engm)306 ga100_runl_block(struct nvkm_runl *runl, u32 engm)
307 {
308 	nvkm_mask(runl->fifo->engine.subdev.device, runl->addr + 0x094, 0x00000001, 0x00000001);
309 }
310 
311 static bool
ga100_runl_pending(struct nvkm_runl * runl)312 ga100_runl_pending(struct nvkm_runl *runl)
313 {
314 	struct nvkm_device *device = runl->fifo->engine.subdev.device;
315 
316 	return nvkm_rd32(device, runl->addr + 0x08c) & 0x00008000;
317 }
318 
319 static void
ga100_runl_commit(struct nvkm_runl * runl,struct nvkm_memory * memory,u32 start,int count)320 ga100_runl_commit(struct nvkm_runl *runl, struct nvkm_memory *memory, u32 start, int count)
321 {
322 	struct nvkm_device *device = runl->fifo->engine.subdev.device;
323 	u64 addr = nvkm_memory_addr(memory) + start;
324 
325 	nvkm_wr32(device, runl->addr + 0x080, lower_32_bits(addr));
326 	nvkm_wr32(device, runl->addr + 0x084, upper_32_bits(addr));
327 	nvkm_wr32(device, runl->addr + 0x088, count);
328 }
329 
330 static irqreturn_t
ga100_runl_intr(struct nvkm_inth * inth)331 ga100_runl_intr(struct nvkm_inth *inth)
332 {
333 	struct nvkm_runl *runl = container_of(inth, typeof(*runl), inth);
334 	struct nvkm_engn *engn;
335 	struct nvkm_device *device = runl->fifo->engine.subdev.device;
336 	u32 inte = nvkm_rd32(device, runl->addr + 0x120);
337 	u32 intr = nvkm_rd32(device, runl->addr + 0x100);
338 	u32 stat = intr & inte;
339 	u32 info;
340 
341 	if (!stat) {
342 		RUNL_DEBUG(runl, "inte %08x %08x", intr, inte);
343 		return IRQ_NONE;
344 	}
345 
346 	if (stat & 0x00000007) {
347 		nvkm_runl_foreach_engn_cond(engn, runl, stat & BIT(engn->id)) {
348 			info = nvkm_rd32(device, runl->addr + 0x224 + (engn->id * 0x40));
349 
350 			tu102_fifo_intr_ctxsw_timeout_info(engn, info);
351 
352 			nvkm_wr32(device, runl->addr + 0x100, BIT(engn->id));
353 			stat &= ~BIT(engn->id);
354 		}
355 	}
356 
357 	if (stat & 0x00000300) {
358 		nvkm_wr32(device, runl->addr + 0x100, stat & 0x00000300);
359 		stat &= ~0x00000300;
360 	}
361 
362 	if (stat & 0x00010000) {
363 		if (runl->runq[0]) {
364 			if (runl->runq[0]->func->intr(runl->runq[0], runl))
365 				stat &= ~0x00010000;
366 		}
367 	}
368 
369 	if (stat & 0x00020000) {
370 		if (runl->runq[1]) {
371 			if (runl->runq[1]->func->intr(runl->runq[1], runl))
372 				stat &= ~0x00020000;
373 		}
374 	}
375 
376 	if (stat) {
377 		RUNL_ERROR(runl, "intr %08x", stat);
378 		nvkm_wr32(device, runl->addr + 0x140, stat);
379 	}
380 
381 	nvkm_wr32(device, runl->addr + 0x180, 0x00000001);
382 	return IRQ_HANDLED;
383 }
384 
385 static void
ga100_runl_fini(struct nvkm_runl * runl)386 ga100_runl_fini(struct nvkm_runl *runl)
387 {
388 	nvkm_mask(runl->fifo->engine.subdev.device, runl->addr + 0x300, 0x80000000, 0x00000000);
389 	nvkm_inth_block(&runl->inth);
390 }
391 
392 static void
ga100_runl_init(struct nvkm_runl * runl)393 ga100_runl_init(struct nvkm_runl *runl)
394 {
395 	struct nvkm_fifo *fifo = runl->fifo;
396 	struct nvkm_runq *runq;
397 	struct nvkm_device *device = fifo->engine.subdev.device;
398 	int i;
399 
400 	/* Submit NULL runlist and preempt. */
401 	nvkm_wr32(device, runl->addr + 0x088, 0x00000000);
402 	runl->func->preempt(runl);
403 
404 	/* Enable doorbell. */
405 	nvkm_mask(device, runl->addr + 0x300, 0x80000000, 0x80000000);
406 
407 	nvkm_wr32(device, runl->addr + 0x100, 0xffffffff); /* INTR_0 */
408 	nvkm_wr32(device, runl->addr + 0x140, 0xffffffff); /* INTR_0_EN_CLEAR_TREE(0) */
409 	nvkm_wr32(device, runl->addr + 0x120, 0x000f1307); /* INTR_0_EN_SET_TREE(0) */
410 	nvkm_wr32(device, runl->addr + 0x148, 0xffffffff); /* INTR_0_EN_CLEAR_TREE(1) */
411 	nvkm_wr32(device, runl->addr + 0x128, 0x00000000); /* INTR_0_EN_SET_TREE(1) */
412 
413 	/* Init PBDMA(s). */
414 	for (i = 0; i < runl->runq_nr; i++) {
415 		runq = runl->runq[i];
416 		runq->func->init(runq);
417 	}
418 
419 	nvkm_inth_allow(&runl->inth);
420 }
421 
422 const struct nvkm_runl_func
423 ga100_runl = {
424 	.init = ga100_runl_init,
425 	.fini = ga100_runl_fini,
426 	.size = 16,
427 	.update = nv50_runl_update,
428 	.insert_cgrp = gv100_runl_insert_cgrp,
429 	.insert_chan = gv100_runl_insert_chan,
430 	.commit = ga100_runl_commit,
431 	.wait = nv50_runl_wait,
432 	.pending = ga100_runl_pending,
433 	.block = ga100_runl_block,
434 	.allow = ga100_runl_allow,
435 	.preempt = ga100_runl_preempt,
436 	.preempt_pending = ga100_runl_preempt_pending,
437 };
438 
439 static int
ga100_runl_new(struct nvkm_fifo * fifo,int id,u32 addr,struct nvkm_runl ** prunl)440 ga100_runl_new(struct nvkm_fifo *fifo, int id, u32 addr, struct nvkm_runl **prunl)
441 {
442 	struct nvkm_device *device = fifo->engine.subdev.device;
443 	struct nvkm_top_device *tdev;
444 	struct nvkm_runl *runl;
445 	struct nvkm_engn *engn;
446 	u32 chcfg  = nvkm_rd32(device, addr + 0x004);
447 	u32 chnum  = 1 << (chcfg & 0x0000000f);
448 	u32 chaddr = (chcfg & 0xfffffff0);
449 	u32 dbcfg  = nvkm_rd32(device, addr + 0x008);
450 	u32 vector = nvkm_rd32(device, addr + 0x160);
451 	int i, ret;
452 
453 	runl = nvkm_runl_new(fifo, id, addr, chnum);
454 	if (IS_ERR(runl))
455 		return PTR_ERR(runl);
456 
457 	*prunl = runl;
458 
459 	for (i = 0; i < 2; i++) {
460 		u32 pbcfg = nvkm_rd32(device, addr + 0x010 + (i * 0x04));
461 		if (pbcfg & 0x80000000) {
462 			runl->runq[runl->runq_nr] =
463 				nvkm_runq_new(fifo, ((pbcfg & 0x03fffc00) - 0x040000) / 0x800);
464 			if (!runl->runq[runl->runq_nr]) {
465 				RUNL_ERROR(runl, "runq %d", runl->runq_nr);
466 				return -ENOMEM;
467 			}
468 
469 			runl->runq_nr++;
470 		}
471 	}
472 
473 	nvkm_list_foreach(tdev, &device->top->device, head, tdev->runlist == runl->addr) {
474 		if (tdev->engine < 0) {
475 			RUNL_DEBUG(runl, "engn !top");
476 			return -EINVAL;
477 		}
478 
479 		engn = nvkm_runl_add(runl, tdev->engine, (tdev->type == NVKM_ENGINE_CE) ?
480 				     fifo->func->engn_ce : fifo->func->engn,
481 				     tdev->type, tdev->inst);
482 		if (!engn)
483 			return -EINVAL;
484 
485 		if (!engn->engine->func->nonstall) {
486 			RUNL_DEBUG(runl, "engn %s !nonstall", engn->engine->subdev.name);
487 			return -EINVAL;
488 		}
489 	}
490 
491 	if (list_empty(&runl->engns)) {
492 		RUNL_DEBUG(runl, "!engns");
493 		return -EINVAL;
494 	}
495 
496 	ret = nvkm_inth_add(&device->vfn->intr, vector & 0x00000fff, NVKM_INTR_PRIO_NORMAL,
497 			    &fifo->engine.subdev, ga100_runl_intr, &runl->inth);
498 	if (ret) {
499 		RUNL_ERROR(runl, "inth %d", ret);
500 		return ret;
501 	}
502 
503 	runl->chan = chaddr;
504 	runl->doorbell = dbcfg >> 16;
505 	return 0;
506 }
507 
508 static irqreturn_t
ga100_fifo_nonstall_intr(struct nvkm_inth * inth)509 ga100_fifo_nonstall_intr(struct nvkm_inth *inth)
510 {
511 	struct nvkm_runl *runl = container_of(inth, typeof(*runl), nonstall.inth);
512 
513 	nvkm_event_ntfy(&runl->fifo->nonstall.event, runl->id, NVKM_FIFO_NONSTALL_EVENT);
514 	return IRQ_HANDLED;
515 }
516 
517 static void
ga100_fifo_nonstall_block(struct nvkm_event * event,int type,int index)518 ga100_fifo_nonstall_block(struct nvkm_event *event, int type, int index)
519 {
520 	struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), nonstall.event);
521 	struct nvkm_runl *runl = nvkm_runl_get(fifo, index, 0);
522 
523 	nvkm_inth_block(&runl->nonstall.inth);
524 }
525 
526 static void
ga100_fifo_nonstall_allow(struct nvkm_event * event,int type,int index)527 ga100_fifo_nonstall_allow(struct nvkm_event *event, int type, int index)
528 {
529 	struct nvkm_fifo *fifo = container_of(event, typeof(*fifo), nonstall.event);
530 	struct nvkm_runl *runl = nvkm_runl_get(fifo, index, 0);
531 
532 	nvkm_inth_allow(&runl->nonstall.inth);
533 }
534 
535 const struct nvkm_event_func
536 ga100_fifo_nonstall = {
537 	.init = ga100_fifo_nonstall_allow,
538 	.fini = ga100_fifo_nonstall_block,
539 };
540 
541 int
ga100_fifo_nonstall_ctor(struct nvkm_fifo * fifo)542 ga100_fifo_nonstall_ctor(struct nvkm_fifo *fifo)
543 {
544 	struct nvkm_subdev *subdev = &fifo->engine.subdev;
545 	struct nvkm_vfn *vfn = subdev->device->vfn;
546 	struct nvkm_runl *runl;
547 	int ret, nr = 0;
548 
549 	nvkm_runl_foreach(runl, fifo) {
550 		struct nvkm_engn *engn = list_first_entry(&runl->engns, typeof(*engn), head);
551 
552 		runl->nonstall.vector = engn->func->nonstall(engn);
553 
554 		/* if no nonstall vector just keep going */
555 		if (runl->nonstall.vector == -1)
556 			continue;
557 		if (runl->nonstall.vector < 0) {
558 			RUNL_ERROR(runl, "nonstall %d", runl->nonstall.vector);
559 			return runl->nonstall.vector;
560 		}
561 
562 		ret = nvkm_inth_add(&vfn->intr, runl->nonstall.vector, NVKM_INTR_PRIO_NORMAL,
563 				    subdev, ga100_fifo_nonstall_intr, &runl->nonstall.inth);
564 		if (ret)
565 			return ret;
566 
567 		nr = max(nr, runl->id + 1);
568 	}
569 
570 	return nr;
571 }
572 
573 int
ga100_fifo_runl_ctor(struct nvkm_fifo * fifo)574 ga100_fifo_runl_ctor(struct nvkm_fifo *fifo)
575 {
576 	struct nvkm_device *device = fifo->engine.subdev.device;
577 	struct nvkm_top_device *tdev;
578 	struct nvkm_runl *runl;
579 	int id = 0, ret;
580 
581 	nvkm_list_foreach(tdev, &device->top->device, head, tdev->runlist >= 0) {
582 		runl = nvkm_runl_get(fifo, -1, tdev->runlist);
583 		if (!runl) {
584 			ret = ga100_runl_new(fifo, id++, tdev->runlist, &runl);
585 			if (ret) {
586 				if (runl)
587 					nvkm_runl_del(runl);
588 
589 				continue;
590 			}
591 		}
592 	}
593 
594 	return 0;
595 }
596 
597 static const struct nvkm_fifo_func
598 ga100_fifo = {
599 	.runl_ctor = ga100_fifo_runl_ctor,
600 	.mmu_fault = &tu102_fifo_mmu_fault,
601 	.nonstall_ctor = ga100_fifo_nonstall_ctor,
602 	.nonstall = &ga100_fifo_nonstall,
603 	.runl = &ga100_runl,
604 	.runq = &ga100_runq,
605 	.engn = &ga100_engn,
606 	.engn_ce = &ga100_engn_ce,
607 	.cgrp = {{ 0, 0, KEPLER_CHANNEL_GROUP_A  }, &ga100_cgrp, .force = true },
608 	.chan = {{ 0, 0, AMPERE_CHANNEL_GPFIFO_A }, &ga100_chan },
609 };
610 
611 int
ga100_fifo_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fifo ** pfifo)612 ga100_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
613 	       struct nvkm_fifo **pfifo)
614 {
615 	if (nvkm_gsp_rm(device->gsp))
616 		return r535_fifo_new(&ga100_fifo, device, type, inst, pfifo);
617 
618 	return nvkm_fifo_new_(&ga100_fifo, device, type, inst, pfifo);
619 }
620