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 */
23
24#include <nvif/client.h>
25#include <nvif/driver.h>
26#include <nvif/fifo.h>
27#include <nvif/ioctl.h>
28#include <nvif/class.h>
29#include <nvif/cl0002.h>
30#include <nvif/cla06f.h>
31#include <nvif/unpack.h>
32
33#include "nouveau_drv.h"
34#include "nouveau_dma.h"
35#include "nouveau_gem.h"
36#include "nouveau_chan.h"
37#include "nouveau_abi16.h"
38#include "nouveau_vmm.h"
39
40static struct nouveau_abi16 *
41nouveau_abi16(struct drm_file *file_priv)
42{
43	struct nouveau_cli *cli = nouveau_cli(file_priv);
44	if (!cli->abi16) {
45		struct nouveau_abi16 *abi16;
46		cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
47		if (cli->abi16) {
48			struct nv_device_v0 args = {
49				.device = ~0ULL,
50			};
51
52			INIT_LIST_HEAD(&abi16->channels);
53
54			/* allocate device object targeting client's default
55			 * device (ie. the one that belongs to the fd it
56			 * opened)
57			 */
58			if (nvif_device_ctor(&cli->base.object, "abi16Device",
59					     0, NV_DEVICE, &args, sizeof(args),
60					     &abi16->device) == 0)
61				return cli->abi16;
62
63			kfree(cli->abi16);
64			cli->abi16 = NULL;
65		}
66	}
67	return cli->abi16;
68}
69
70struct nouveau_abi16 *
71nouveau_abi16_get(struct drm_file *file_priv)
72{
73	struct nouveau_cli *cli = nouveau_cli(file_priv);
74	mutex_lock(&cli->mutex);
75	if (nouveau_abi16(file_priv))
76		return cli->abi16;
77	mutex_unlock(&cli->mutex);
78	return NULL;
79}
80
81int
82nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
83{
84	struct nouveau_cli *cli = (void *)abi16->device.object.client;
85	mutex_unlock(&cli->mutex);
86	return ret;
87}
88
89s32
90nouveau_abi16_swclass(struct nouveau_drm *drm)
91{
92	switch (drm->client.device.info.family) {
93	case NV_DEVICE_INFO_V0_TNT:
94		return NVIF_CLASS_SW_NV04;
95	case NV_DEVICE_INFO_V0_CELSIUS:
96	case NV_DEVICE_INFO_V0_KELVIN:
97	case NV_DEVICE_INFO_V0_RANKINE:
98	case NV_DEVICE_INFO_V0_CURIE:
99		return NVIF_CLASS_SW_NV10;
100	case NV_DEVICE_INFO_V0_TESLA:
101		return NVIF_CLASS_SW_NV50;
102	case NV_DEVICE_INFO_V0_FERMI:
103	case NV_DEVICE_INFO_V0_KEPLER:
104	case NV_DEVICE_INFO_V0_MAXWELL:
105	case NV_DEVICE_INFO_V0_PASCAL:
106	case NV_DEVICE_INFO_V0_VOLTA:
107		return NVIF_CLASS_SW_GF100;
108	}
109
110	return 0x0000;
111}
112
113static void
114nouveau_abi16_ntfy_fini(struct nouveau_abi16_chan *chan,
115			struct nouveau_abi16_ntfy *ntfy)
116{
117	nvif_object_dtor(&ntfy->object);
118	nvkm_mm_free(&chan->heap, &ntfy->node);
119	list_del(&ntfy->head);
120	kfree(ntfy);
121}
122
123static void
124nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
125			struct nouveau_abi16_chan *chan)
126{
127	struct nouveau_abi16_ntfy *ntfy, *temp;
128
129	/* wait for all activity to stop before releasing notify object, which
130	 * may be still in use */
131	if (chan->chan && chan->ntfy)
132		nouveau_channel_idle(chan->chan);
133
134	/* cleanup notifier state */
135	list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
136		nouveau_abi16_ntfy_fini(chan, ntfy);
137	}
138
139	if (chan->ntfy) {
140		nouveau_vma_del(&chan->ntfy_vma);
141		nouveau_bo_unpin(chan->ntfy);
142		drm_gem_object_put(&chan->ntfy->bo.base);
143	}
144
145	if (chan->heap.block_size)
146		nvkm_mm_fini(&chan->heap);
147
148	/* destroy channel object, all children will be killed too */
149	if (chan->chan) {
150		nouveau_channel_idle(chan->chan);
151		nouveau_channel_del(&chan->chan);
152	}
153
154	list_del(&chan->head);
155	kfree(chan);
156}
157
158void
159nouveau_abi16_fini(struct nouveau_abi16 *abi16)
160{
161	struct nouveau_cli *cli = (void *)abi16->device.object.client;
162	struct nouveau_abi16_chan *chan, *temp;
163
164	/* cleanup channels */
165	list_for_each_entry_safe(chan, temp, &abi16->channels, head) {
166		nouveau_abi16_chan_fini(abi16, chan);
167	}
168
169	/* destroy the device object */
170	nvif_device_dtor(&abi16->device);
171
172	kfree(cli->abi16);
173	cli->abi16 = NULL;
174}
175
176int
177nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
178{
179	struct nouveau_cli *cli = nouveau_cli(file_priv);
180	struct nouveau_drm *drm = nouveau_drm(dev);
181	struct nvif_device *device = &drm->client.device;
182	struct nvkm_gr *gr = nvxx_gr(device);
183	struct drm_nouveau_getparam *getparam = data;
184
185	switch (getparam->param) {
186	case NOUVEAU_GETPARAM_CHIPSET_ID:
187		getparam->value = device->info.chipset;
188		break;
189	case NOUVEAU_GETPARAM_PCI_VENDOR:
190		if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
191			getparam->value = dev->pdev->vendor;
192		else
193			getparam->value = 0;
194		break;
195	case NOUVEAU_GETPARAM_PCI_DEVICE:
196		if (device->info.platform != NV_DEVICE_INFO_V0_SOC)
197			getparam->value = dev->pdev->device;
198		else
199			getparam->value = 0;
200		break;
201	case NOUVEAU_GETPARAM_BUS_TYPE:
202		switch (device->info.platform) {
203		case NV_DEVICE_INFO_V0_AGP : getparam->value = 0; break;
204		case NV_DEVICE_INFO_V0_PCI : getparam->value = 1; break;
205		case NV_DEVICE_INFO_V0_PCIE: getparam->value = 2; break;
206		case NV_DEVICE_INFO_V0_SOC : getparam->value = 3; break;
207		case NV_DEVICE_INFO_V0_IGP :
208			if (!pci_is_pcie(dev->pdev))
209				getparam->value = 1;
210			else
211				getparam->value = 2;
212			break;
213		default:
214			WARN_ON(1);
215			break;
216		}
217		break;
218	case NOUVEAU_GETPARAM_FB_SIZE:
219		getparam->value = drm->gem.vram_available;
220		break;
221	case NOUVEAU_GETPARAM_AGP_SIZE:
222		getparam->value = drm->gem.gart_available;
223		break;
224	case NOUVEAU_GETPARAM_VM_VRAM_BASE:
225		getparam->value = 0; /* deprecated */
226		break;
227	case NOUVEAU_GETPARAM_PTIMER_TIME:
228		getparam->value = nvif_device_time(device);
229		break;
230	case NOUVEAU_GETPARAM_HAS_BO_USAGE:
231		getparam->value = 1;
232		break;
233	case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
234		getparam->value = 1;
235		break;
236	case NOUVEAU_GETPARAM_GRAPH_UNITS:
237		getparam->value = nvkm_gr_units(gr);
238		break;
239	default:
240		NV_PRINTK(dbg, cli, "unknown parameter %lld\n", getparam->param);
241		return -EINVAL;
242	}
243
244	return 0;
245}
246
247int
248nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
249{
250	struct drm_nouveau_channel_alloc *init = data;
251	struct nouveau_cli *cli = nouveau_cli(file_priv);
252	struct nouveau_drm *drm = nouveau_drm(dev);
253	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
254	struct nouveau_abi16_chan *chan;
255	struct nvif_device *device;
256	u64 engine;
257	int ret;
258
259	if (unlikely(!abi16))
260		return -ENOMEM;
261
262	if (!drm->channel)
263		return nouveau_abi16_put(abi16, -ENODEV);
264
265	device = &abi16->device;
266
267	/* hack to allow channel engine type specification on kepler */
268	if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
269		if (init->fb_ctxdma_handle == ~0) {
270			switch (init->tt_ctxdma_handle) {
271			case 0x01: engine = NV_DEVICE_INFO_ENGINE_GR    ; break;
272			case 0x02: engine = NV_DEVICE_INFO_ENGINE_MSPDEC; break;
273			case 0x04: engine = NV_DEVICE_INFO_ENGINE_MSPPP ; break;
274			case 0x08: engine = NV_DEVICE_INFO_ENGINE_MSVLD ; break;
275			case 0x30: engine = NV_DEVICE_INFO_ENGINE_CE    ; break;
276			default:
277				return nouveau_abi16_put(abi16, -ENOSYS);
278			}
279		} else {
280			engine = NV_DEVICE_INFO_ENGINE_GR;
281		}
282
283		if (engine != NV_DEVICE_INFO_ENGINE_CE)
284			engine = nvif_fifo_runlist(device, engine);
285		else
286			engine = nvif_fifo_runlist_ce(device);
287		init->fb_ctxdma_handle = engine;
288		init->tt_ctxdma_handle = 0;
289	}
290
291	if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
292		return nouveau_abi16_put(abi16, -EINVAL);
293
294	/* allocate "abi16 channel" data and make up a handle for it */
295	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
296	if (!chan)
297		return nouveau_abi16_put(abi16, -ENOMEM);
298
299	INIT_LIST_HEAD(&chan->notifiers);
300	list_add(&chan->head, &abi16->channels);
301
302	/* create channel object and initialise dma and fence management */
303	ret = nouveau_channel_new(drm, device, init->fb_ctxdma_handle,
304				  init->tt_ctxdma_handle, false, &chan->chan);
305	if (ret)
306		goto done;
307
308	init->channel = chan->chan->chid;
309
310	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
311		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
312					NOUVEAU_GEM_DOMAIN_GART;
313	else
314	if (chan->chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM)
315		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
316	else
317		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
318
319	if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
320		init->subchan[0].handle = 0x00000000;
321		init->subchan[0].grclass = 0x0000;
322		init->subchan[1].handle = chan->chan->nvsw.handle;
323		init->subchan[1].grclass = 0x506e;
324		init->nr_subchan = 2;
325	}
326
327	/* Named memory object area */
328	ret = nouveau_gem_new(cli, PAGE_SIZE, 0, NOUVEAU_GEM_DOMAIN_GART,
329			      0, 0, &chan->ntfy);
330	if (ret == 0)
331		ret = nouveau_bo_pin(chan->ntfy, NOUVEAU_GEM_DOMAIN_GART,
332				     false);
333	if (ret)
334		goto done;
335
336	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
337		ret = nouveau_vma_new(chan->ntfy, chan->chan->vmm,
338				      &chan->ntfy_vma);
339		if (ret)
340			goto done;
341	}
342
343	ret = drm_gem_handle_create(file_priv, &chan->ntfy->bo.base,
344				    &init->notifier_handle);
345	if (ret)
346		goto done;
347
348	ret = nvkm_mm_init(&chan->heap, 0, 0, PAGE_SIZE, 1);
349done:
350	if (ret)
351		nouveau_abi16_chan_fini(abi16, chan);
352	return nouveau_abi16_put(abi16, ret);
353}
354
355static struct nouveau_abi16_chan *
356nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
357{
358	struct nouveau_abi16_chan *chan;
359
360	list_for_each_entry(chan, &abi16->channels, head) {
361		if (chan->chan->chid == channel)
362			return chan;
363	}
364
365	return NULL;
366}
367
368int
369nouveau_abi16_usif(struct drm_file *file_priv, void *data, u32 size)
370{
371	union {
372		struct nvif_ioctl_v0 v0;
373	} *args = data;
374	struct nouveau_abi16_chan *chan;
375	struct nouveau_abi16 *abi16;
376	int ret = -ENOSYS;
377
378	if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) {
379		switch (args->v0.type) {
380		case NVIF_IOCTL_V0_NEW:
381		case NVIF_IOCTL_V0_MTHD:
382		case NVIF_IOCTL_V0_SCLASS:
383			break;
384		default:
385			return -EACCES;
386		}
387	} else
388		return ret;
389
390	if (!(abi16 = nouveau_abi16(file_priv)))
391		return -ENOMEM;
392
393	if (args->v0.token != ~0ULL) {
394		if (!(chan = nouveau_abi16_chan(abi16, args->v0.token)))
395			return -EINVAL;
396		args->v0.object = nvif_handle(&chan->chan->user);
397		args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
398		return 0;
399	}
400
401	args->v0.object = nvif_handle(&abi16->device.object);
402	args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
403	return 0;
404}
405
406int
407nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
408{
409	struct drm_nouveau_channel_free *req = data;
410	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
411	struct nouveau_abi16_chan *chan;
412
413	if (unlikely(!abi16))
414		return -ENOMEM;
415
416	chan = nouveau_abi16_chan(abi16, req->channel);
417	if (!chan)
418		return nouveau_abi16_put(abi16, -ENOENT);
419	nouveau_abi16_chan_fini(abi16, chan);
420	return nouveau_abi16_put(abi16, 0);
421}
422
423int
424nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
425{
426	struct drm_nouveau_grobj_alloc *init = data;
427	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
428	struct nouveau_abi16_chan *chan;
429	struct nouveau_abi16_ntfy *ntfy;
430	struct nvif_client *client;
431	struct nvif_sclass *sclass;
432	s32 oclass = 0;
433	int ret, i;
434
435	if (unlikely(!abi16))
436		return -ENOMEM;
437
438	if (init->handle == ~0)
439		return nouveau_abi16_put(abi16, -EINVAL);
440	client = abi16->device.object.client;
441
442	chan = nouveau_abi16_chan(abi16, init->channel);
443	if (!chan)
444		return nouveau_abi16_put(abi16, -ENOENT);
445
446	ret = nvif_object_sclass_get(&chan->chan->user, &sclass);
447	if (ret < 0)
448		return nouveau_abi16_put(abi16, ret);
449
450	if ((init->class & 0x00ff) == 0x006e) {
451		/* nvsw: compatibility with older 0x*6e class identifier */
452		for (i = 0; !oclass && i < ret; i++) {
453			switch (sclass[i].oclass) {
454			case NVIF_CLASS_SW_NV04:
455			case NVIF_CLASS_SW_NV10:
456			case NVIF_CLASS_SW_NV50:
457			case NVIF_CLASS_SW_GF100:
458				oclass = sclass[i].oclass;
459				break;
460			default:
461				break;
462			}
463		}
464	} else
465	if ((init->class & 0x00ff) == 0x00b1) {
466		/* msvld: compatibility with incorrect version exposure */
467		for (i = 0; i < ret; i++) {
468			if ((sclass[i].oclass & 0x00ff) == 0x00b1) {
469				oclass = sclass[i].oclass;
470				break;
471			}
472		}
473	} else
474	if ((init->class & 0x00ff) == 0x00b2) { /* mspdec */
475		/* mspdec: compatibility with incorrect version exposure */
476		for (i = 0; i < ret; i++) {
477			if ((sclass[i].oclass & 0x00ff) == 0x00b2) {
478				oclass = sclass[i].oclass;
479				break;
480			}
481		}
482	} else
483	if ((init->class & 0x00ff) == 0x00b3) { /* msppp */
484		/* msppp: compatibility with incorrect version exposure */
485		for (i = 0; i < ret; i++) {
486			if ((sclass[i].oclass & 0x00ff) == 0x00b3) {
487				oclass = sclass[i].oclass;
488				break;
489			}
490		}
491	} else {
492		oclass = init->class;
493	}
494
495	nvif_object_sclass_put(&sclass);
496	if (!oclass)
497		return nouveau_abi16_put(abi16, -EINVAL);
498
499	ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
500	if (!ntfy)
501		return nouveau_abi16_put(abi16, -ENOMEM);
502
503	list_add(&ntfy->head, &chan->notifiers);
504
505	client->route = NVDRM_OBJECT_ABI16;
506	ret = nvif_object_ctor(&chan->chan->user, "abi16EngObj", init->handle,
507			       oclass, NULL, 0, &ntfy->object);
508	client->route = NVDRM_OBJECT_NVIF;
509
510	if (ret)
511		nouveau_abi16_ntfy_fini(chan, ntfy);
512	return nouveau_abi16_put(abi16, ret);
513}
514
515int
516nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
517{
518	struct drm_nouveau_notifierobj_alloc *info = data;
519	struct nouveau_drm *drm = nouveau_drm(dev);
520	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
521	struct nouveau_abi16_chan *chan;
522	struct nouveau_abi16_ntfy *ntfy;
523	struct nvif_device *device = &abi16->device;
524	struct nvif_client *client;
525	struct nv_dma_v0 args = {};
526	int ret;
527
528	if (unlikely(!abi16))
529		return -ENOMEM;
530
531	/* completely unnecessary for these chipsets... */
532	if (unlikely(device->info.family >= NV_DEVICE_INFO_V0_FERMI))
533		return nouveau_abi16_put(abi16, -EINVAL);
534	client = abi16->device.object.client;
535
536	chan = nouveau_abi16_chan(abi16, info->channel);
537	if (!chan)
538		return nouveau_abi16_put(abi16, -ENOENT);
539
540	ntfy = kzalloc(sizeof(*ntfy), GFP_KERNEL);
541	if (!ntfy)
542		return nouveau_abi16_put(abi16, -ENOMEM);
543
544	list_add(&ntfy->head, &chan->notifiers);
545
546	ret = nvkm_mm_head(&chan->heap, 0, 1, info->size, info->size, 1,
547			   &ntfy->node);
548	if (ret)
549		goto done;
550
551	args.start = ntfy->node->offset;
552	args.limit = ntfy->node->offset + ntfy->node->length - 1;
553	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
554		args.target = NV_DMA_V0_TARGET_VM;
555		args.access = NV_DMA_V0_ACCESS_VM;
556		args.start += chan->ntfy_vma->addr;
557		args.limit += chan->ntfy_vma->addr;
558	} else
559	if (drm->agp.bridge) {
560		args.target = NV_DMA_V0_TARGET_AGP;
561		args.access = NV_DMA_V0_ACCESS_RDWR;
562		args.start += drm->agp.base + chan->ntfy->offset;
563		args.limit += drm->agp.base + chan->ntfy->offset;
564	} else {
565		args.target = NV_DMA_V0_TARGET_VM;
566		args.access = NV_DMA_V0_ACCESS_RDWR;
567		args.start += chan->ntfy->offset;
568		args.limit += chan->ntfy->offset;
569	}
570
571	client->route = NVDRM_OBJECT_ABI16;
572	client->super = true;
573	ret = nvif_object_ctor(&chan->chan->user, "abi16Ntfy", info->handle,
574			       NV_DMA_IN_MEMORY, &args, sizeof(args),
575			       &ntfy->object);
576	client->super = false;
577	client->route = NVDRM_OBJECT_NVIF;
578	if (ret)
579		goto done;
580
581	info->offset = ntfy->node->offset;
582done:
583	if (ret)
584		nouveau_abi16_ntfy_fini(chan, ntfy);
585	return nouveau_abi16_put(abi16, ret);
586}
587
588int
589nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
590{
591	struct drm_nouveau_gpuobj_free *fini = data;
592	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
593	struct nouveau_abi16_chan *chan;
594	struct nouveau_abi16_ntfy *ntfy;
595	int ret = -ENOENT;
596
597	if (unlikely(!abi16))
598		return -ENOMEM;
599
600	chan = nouveau_abi16_chan(abi16, fini->channel);
601	if (!chan)
602		return nouveau_abi16_put(abi16, -EINVAL);
603
604	/* synchronize with the user channel and destroy the gpu object */
605	nouveau_channel_idle(chan->chan);
606
607	list_for_each_entry(ntfy, &chan->notifiers, head) {
608		if (ntfy->object.handle == fini->handle) {
609			nouveau_abi16_ntfy_fini(chan, ntfy);
610			ret = 0;
611			break;
612		}
613	}
614
615	return nouveau_abi16_put(abi16, ret);
616}
617