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 "nv40.h"
25#include "regs.h"
26
27#include <core/client.h>
28#include <core/gpuobj.h>
29#include <subdev/fb.h>
30#include <subdev/timer.h>
31#include <engine/fifo.h>
32
33u64
34nv40_gr_units(struct nvkm_gr *gr)
35{
36	return nvkm_rd32(gr->engine.subdev.device, 0x1540);
37}
38
39/*******************************************************************************
40 * Graphics object classes
41 ******************************************************************************/
42
43static int
44nv40_gr_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
45		    int align, struct nvkm_gpuobj **pgpuobj)
46{
47	int ret = nvkm_gpuobj_new(object->engine->subdev.device, 20, align,
48				  false, parent, pgpuobj);
49	if (ret == 0) {
50		nvkm_kmap(*pgpuobj);
51		nvkm_wo32(*pgpuobj, 0x00, object->oclass);
52		nvkm_wo32(*pgpuobj, 0x04, 0x00000000);
53		nvkm_wo32(*pgpuobj, 0x08, 0x00000000);
54#ifdef __BIG_ENDIAN
55		nvkm_mo32(*pgpuobj, 0x08, 0x01000000, 0x01000000);
56#endif
57		nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
58		nvkm_wo32(*pgpuobj, 0x10, 0x00000000);
59		nvkm_done(*pgpuobj);
60	}
61	return ret;
62}
63
64const struct nvkm_object_func
65nv40_gr_object = {
66	.bind = nv40_gr_object_bind,
67};
68
69/*******************************************************************************
70 * PGRAPH context
71 ******************************************************************************/
72
73static int
74nv40_gr_chan_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
75		  int align, struct nvkm_gpuobj **pgpuobj)
76{
77	struct nv40_gr_chan *chan = nv40_gr_chan(object);
78	struct nv40_gr *gr = chan->gr;
79	int ret = nvkm_gpuobj_new(gr->base.engine.subdev.device, gr->size,
80				  align, true, parent, pgpuobj);
81	if (ret == 0) {
82		chan->inst = (*pgpuobj)->addr;
83		nvkm_kmap(*pgpuobj);
84		nv40_grctx_fill(gr->base.engine.subdev.device, *pgpuobj);
85		nvkm_wo32(*pgpuobj, 0x00000, chan->inst >> 4);
86		nvkm_done(*pgpuobj);
87	}
88	return ret;
89}
90
91static int
92nv40_gr_chan_fini(struct nvkm_object *object, bool suspend)
93{
94	struct nv40_gr_chan *chan = nv40_gr_chan(object);
95	struct nv40_gr *gr = chan->gr;
96	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
97	struct nvkm_device *device = subdev->device;
98	u32 inst = 0x01000000 | chan->inst >> 4;
99	int ret = 0;
100
101	nvkm_mask(device, 0x400720, 0x00000001, 0x00000000);
102
103	if (nvkm_rd32(device, 0x40032c) == inst) {
104		if (suspend) {
105			nvkm_wr32(device, 0x400720, 0x00000000);
106			nvkm_wr32(device, 0x400784, inst);
107			nvkm_mask(device, 0x400310, 0x00000020, 0x00000020);
108			nvkm_mask(device, 0x400304, 0x00000001, 0x00000001);
109			if (nvkm_msec(device, 2000,
110				if (!(nvkm_rd32(device, 0x400300) & 0x00000001))
111					break;
112			) < 0) {
113				u32 insn = nvkm_rd32(device, 0x400308);
114				nvkm_warn(subdev, "ctxprog timeout %08x\n", insn);
115				ret = -EBUSY;
116			}
117		}
118
119		nvkm_mask(device, 0x40032c, 0x01000000, 0x00000000);
120	}
121
122	if (nvkm_rd32(device, 0x400330) == inst)
123		nvkm_mask(device, 0x400330, 0x01000000, 0x00000000);
124
125	nvkm_mask(device, 0x400720, 0x00000001, 0x00000001);
126	return ret;
127}
128
129static void *
130nv40_gr_chan_dtor(struct nvkm_object *object)
131{
132	struct nv40_gr_chan *chan = nv40_gr_chan(object);
133	unsigned long flags;
134	spin_lock_irqsave(&chan->gr->base.engine.lock, flags);
135	list_del(&chan->head);
136	spin_unlock_irqrestore(&chan->gr->base.engine.lock, flags);
137	return chan;
138}
139
140static const struct nvkm_object_func
141nv40_gr_chan = {
142	.dtor = nv40_gr_chan_dtor,
143	.fini = nv40_gr_chan_fini,
144	.bind = nv40_gr_chan_bind,
145};
146
147int
148nv40_gr_chan_new(struct nvkm_gr *base, struct nvkm_fifo_chan *fifoch,
149		 const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
150{
151	struct nv40_gr *gr = nv40_gr(base);
152	struct nv40_gr_chan *chan;
153	unsigned long flags;
154
155	if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
156		return -ENOMEM;
157	nvkm_object_ctor(&nv40_gr_chan, oclass, &chan->object);
158	chan->gr = gr;
159	chan->fifo = fifoch;
160	*pobject = &chan->object;
161
162	spin_lock_irqsave(&chan->gr->base.engine.lock, flags);
163	list_add(&chan->head, &gr->chan);
164	spin_unlock_irqrestore(&chan->gr->base.engine.lock, flags);
165	return 0;
166}
167
168/*******************************************************************************
169 * PGRAPH engine/subdev functions
170 ******************************************************************************/
171
172static void
173nv40_gr_tile(struct nvkm_gr *base, int i, struct nvkm_fb_tile *tile)
174{
175	struct nv40_gr *gr = nv40_gr(base);
176	struct nvkm_device *device = gr->base.engine.subdev.device;
177	struct nvkm_fifo *fifo = device->fifo;
178	unsigned long flags;
179
180	nvkm_fifo_pause(fifo, &flags);
181	nv04_gr_idle(&gr->base);
182
183	switch (device->chipset) {
184	case 0x40:
185	case 0x41:
186	case 0x42:
187	case 0x43:
188	case 0x45:
189		nvkm_wr32(device, NV20_PGRAPH_TSIZE(i), tile->pitch);
190		nvkm_wr32(device, NV20_PGRAPH_TLIMIT(i), tile->limit);
191		nvkm_wr32(device, NV20_PGRAPH_TILE(i), tile->addr);
192		nvkm_wr32(device, NV40_PGRAPH_TSIZE1(i), tile->pitch);
193		nvkm_wr32(device, NV40_PGRAPH_TLIMIT1(i), tile->limit);
194		nvkm_wr32(device, NV40_PGRAPH_TILE1(i), tile->addr);
195		switch (device->chipset) {
196		case 0x40:
197		case 0x45:
198			nvkm_wr32(device, NV20_PGRAPH_ZCOMP(i), tile->zcomp);
199			nvkm_wr32(device, NV40_PGRAPH_ZCOMP1(i), tile->zcomp);
200			break;
201		case 0x41:
202		case 0x42:
203		case 0x43:
204			nvkm_wr32(device, NV41_PGRAPH_ZCOMP0(i), tile->zcomp);
205			nvkm_wr32(device, NV41_PGRAPH_ZCOMP1(i), tile->zcomp);
206			break;
207		default:
208			break;
209		}
210		break;
211	case 0x47:
212	case 0x49:
213	case 0x4b:
214		nvkm_wr32(device, NV47_PGRAPH_TSIZE(i), tile->pitch);
215		nvkm_wr32(device, NV47_PGRAPH_TLIMIT(i), tile->limit);
216		nvkm_wr32(device, NV47_PGRAPH_TILE(i), tile->addr);
217		nvkm_wr32(device, NV40_PGRAPH_TSIZE1(i), tile->pitch);
218		nvkm_wr32(device, NV40_PGRAPH_TLIMIT1(i), tile->limit);
219		nvkm_wr32(device, NV40_PGRAPH_TILE1(i), tile->addr);
220		nvkm_wr32(device, NV47_PGRAPH_ZCOMP0(i), tile->zcomp);
221		nvkm_wr32(device, NV47_PGRAPH_ZCOMP1(i), tile->zcomp);
222		break;
223	default:
224		WARN_ON(1);
225		break;
226	}
227
228	nvkm_fifo_start(fifo, &flags);
229}
230
231void
232nv40_gr_intr(struct nvkm_gr *base)
233{
234	struct nv40_gr *gr = nv40_gr(base);
235	struct nv40_gr_chan *temp, *chan = NULL;
236	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
237	struct nvkm_device *device = subdev->device;
238	u32 stat = nvkm_rd32(device, NV03_PGRAPH_INTR);
239	u32 nsource = nvkm_rd32(device, NV03_PGRAPH_NSOURCE);
240	u32 nstatus = nvkm_rd32(device, NV03_PGRAPH_NSTATUS);
241	u32 inst = nvkm_rd32(device, 0x40032c) & 0x000fffff;
242	u32 addr = nvkm_rd32(device, NV04_PGRAPH_TRAPPED_ADDR);
243	u32 subc = (addr & 0x00070000) >> 16;
244	u32 mthd = (addr & 0x00001ffc);
245	u32 data = nvkm_rd32(device, NV04_PGRAPH_TRAPPED_DATA);
246	u32 class = nvkm_rd32(device, 0x400160 + subc * 4) & 0xffff;
247	u32 show = stat;
248	char msg[128], src[128], sta[128];
249	unsigned long flags;
250
251	spin_lock_irqsave(&gr->base.engine.lock, flags);
252	list_for_each_entry(temp, &gr->chan, head) {
253		if (temp->inst >> 4 == inst) {
254			chan = temp;
255			list_del(&chan->head);
256			list_add(&chan->head, &gr->chan);
257			break;
258		}
259	}
260
261	if (stat & NV_PGRAPH_INTR_ERROR) {
262		if (nsource & NV03_PGRAPH_NSOURCE_DMA_VTX_PROTECTION) {
263			nvkm_mask(device, 0x402000, 0, 0);
264		}
265	}
266
267	nvkm_wr32(device, NV03_PGRAPH_INTR, stat);
268	nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001);
269
270	if (show) {
271		nvkm_snprintbf(msg, sizeof(msg), nv10_gr_intr_name, show);
272		nvkm_snprintbf(src, sizeof(src), nv04_gr_nsource, nsource);
273		nvkm_snprintbf(sta, sizeof(sta), nv10_gr_nstatus, nstatus);
274		nvkm_error(subdev, "intr %08x [%s] nsource %08x [%s] "
275				   "nstatus %08x [%s] ch %d [%08x %s] subc %d "
276				   "class %04x mthd %04x data %08x\n",
277			   show, msg, nsource, src, nstatus, sta,
278			   chan ? chan->fifo->chid : -1, inst << 4,
279			   chan ? chan->fifo->object.client->name : "unknown",
280			   subc, class, mthd, data);
281	}
282
283	spin_unlock_irqrestore(&gr->base.engine.lock, flags);
284}
285
286int
287nv40_gr_init(struct nvkm_gr *base)
288{
289	struct nv40_gr *gr = nv40_gr(base);
290	struct nvkm_device *device = gr->base.engine.subdev.device;
291	int ret, i, j;
292	u32 vramsz;
293
294	/* generate and upload context program */
295	ret = nv40_grctx_init(device, &gr->size);
296	if (ret)
297		return ret;
298
299	/* No context present currently */
300	nvkm_wr32(device, NV40_PGRAPH_CTXCTL_CUR, 0x00000000);
301
302	nvkm_wr32(device, NV03_PGRAPH_INTR   , 0xFFFFFFFF);
303	nvkm_wr32(device, NV40_PGRAPH_INTR_EN, 0xFFFFFFFF);
304
305	nvkm_wr32(device, NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
306	nvkm_wr32(device, NV04_PGRAPH_DEBUG_0, 0x00000000);
307	nvkm_wr32(device, NV04_PGRAPH_DEBUG_1, 0x401287c0);
308	nvkm_wr32(device, NV04_PGRAPH_DEBUG_3, 0xe0de8055);
309	nvkm_wr32(device, NV10_PGRAPH_DEBUG_4, 0x00008000);
310	nvkm_wr32(device, NV04_PGRAPH_LIMIT_VIOL_PIX, 0x00be3c5f);
311
312	nvkm_wr32(device, NV10_PGRAPH_CTX_CONTROL, 0x10010100);
313	nvkm_wr32(device, NV10_PGRAPH_STATE      , 0xFFFFFFFF);
314
315	j = nvkm_rd32(device, 0x1540) & 0xff;
316	if (j) {
317		for (i = 0; !(j & 1); j >>= 1, i++)
318			;
319		nvkm_wr32(device, 0x405000, i);
320	}
321
322	if (device->chipset == 0x40) {
323		nvkm_wr32(device, 0x4009b0, 0x83280fff);
324		nvkm_wr32(device, 0x4009b4, 0x000000a0);
325	} else {
326		nvkm_wr32(device, 0x400820, 0x83280eff);
327		nvkm_wr32(device, 0x400824, 0x000000a0);
328	}
329
330	switch (device->chipset) {
331	case 0x40:
332	case 0x45:
333		nvkm_wr32(device, 0x4009b8, 0x0078e366);
334		nvkm_wr32(device, 0x4009bc, 0x0000014c);
335		break;
336	case 0x41:
337	case 0x42: /* pciid also 0x00Cx */
338	/* case 0x0120: XXX (pciid) */
339		nvkm_wr32(device, 0x400828, 0x007596ff);
340		nvkm_wr32(device, 0x40082c, 0x00000108);
341		break;
342	case 0x43:
343		nvkm_wr32(device, 0x400828, 0x0072cb77);
344		nvkm_wr32(device, 0x40082c, 0x00000108);
345		break;
346	case 0x44:
347	case 0x46: /* G72 */
348	case 0x4a:
349	case 0x4c: /* G7x-based C51 */
350	case 0x4e:
351		nvkm_wr32(device, 0x400860, 0);
352		nvkm_wr32(device, 0x400864, 0);
353		break;
354	case 0x47: /* G70 */
355	case 0x49: /* G71 */
356	case 0x4b: /* G73 */
357		nvkm_wr32(device, 0x400828, 0x07830610);
358		nvkm_wr32(device, 0x40082c, 0x0000016A);
359		break;
360	default:
361		break;
362	}
363
364	nvkm_wr32(device, 0x400b38, 0x2ffff800);
365	nvkm_wr32(device, 0x400b3c, 0x00006000);
366
367	/* Tiling related stuff. */
368	switch (device->chipset) {
369	case 0x44:
370	case 0x4a:
371		nvkm_wr32(device, 0x400bc4, 0x1003d888);
372		nvkm_wr32(device, 0x400bbc, 0xb7a7b500);
373		break;
374	case 0x46:
375		nvkm_wr32(device, 0x400bc4, 0x0000e024);
376		nvkm_wr32(device, 0x400bbc, 0xb7a7b520);
377		break;
378	case 0x4c:
379	case 0x4e:
380	case 0x67:
381		nvkm_wr32(device, 0x400bc4, 0x1003d888);
382		nvkm_wr32(device, 0x400bbc, 0xb7a7b540);
383		break;
384	default:
385		break;
386	}
387
388	/* begin RAM config */
389	vramsz = device->func->resource_size(device, 1) - 1;
390	switch (device->chipset) {
391	case 0x40:
392		nvkm_wr32(device, 0x4009A4, nvkm_rd32(device, 0x100200));
393		nvkm_wr32(device, 0x4009A8, nvkm_rd32(device, 0x100204));
394		nvkm_wr32(device, 0x4069A4, nvkm_rd32(device, 0x100200));
395		nvkm_wr32(device, 0x4069A8, nvkm_rd32(device, 0x100204));
396		nvkm_wr32(device, 0x400820, 0);
397		nvkm_wr32(device, 0x400824, 0);
398		nvkm_wr32(device, 0x400864, vramsz);
399		nvkm_wr32(device, 0x400868, vramsz);
400		break;
401	default:
402		switch (device->chipset) {
403		case 0x41:
404		case 0x42:
405		case 0x43:
406		case 0x45:
407		case 0x4e:
408		case 0x44:
409		case 0x4a:
410			nvkm_wr32(device, 0x4009F0, nvkm_rd32(device, 0x100200));
411			nvkm_wr32(device, 0x4009F4, nvkm_rd32(device, 0x100204));
412			break;
413		default:
414			nvkm_wr32(device, 0x400DF0, nvkm_rd32(device, 0x100200));
415			nvkm_wr32(device, 0x400DF4, nvkm_rd32(device, 0x100204));
416			break;
417		}
418		nvkm_wr32(device, 0x4069F0, nvkm_rd32(device, 0x100200));
419		nvkm_wr32(device, 0x4069F4, nvkm_rd32(device, 0x100204));
420		nvkm_wr32(device, 0x400840, 0);
421		nvkm_wr32(device, 0x400844, 0);
422		nvkm_wr32(device, 0x4008A0, vramsz);
423		nvkm_wr32(device, 0x4008A4, vramsz);
424		break;
425	}
426
427	return 0;
428}
429
430int
431nv40_gr_new_(const struct nvkm_gr_func *func, struct nvkm_device *device,
432	     int index, struct nvkm_gr **pgr)
433{
434	struct nv40_gr *gr;
435
436	if (!(gr = kzalloc(sizeof(*gr), GFP_KERNEL)))
437		return -ENOMEM;
438	*pgr = &gr->base;
439	INIT_LIST_HEAD(&gr->chan);
440
441	return nvkm_gr_ctor(func, device, index, 0x00001000, true, &gr->base);
442}
443
444static const struct nvkm_gr_func
445nv40_gr = {
446	.init = nv40_gr_init,
447	.intr = nv40_gr_intr,
448	.tile = nv40_gr_tile,
449	.units = nv40_gr_units,
450	.chan_new = nv40_gr_chan_new,
451	.sclass = {
452		{ -1, -1, 0x0012, &nv40_gr_object }, /* beta1 */
453		{ -1, -1, 0x0019, &nv40_gr_object }, /* clip */
454		{ -1, -1, 0x0030, &nv40_gr_object }, /* null */
455		{ -1, -1, 0x0039, &nv40_gr_object }, /* m2mf */
456		{ -1, -1, 0x0043, &nv40_gr_object }, /* rop */
457		{ -1, -1, 0x0044, &nv40_gr_object }, /* patt */
458		{ -1, -1, 0x004a, &nv40_gr_object }, /* gdi */
459		{ -1, -1, 0x0062, &nv40_gr_object }, /* surf2d */
460		{ -1, -1, 0x0072, &nv40_gr_object }, /* beta4 */
461		{ -1, -1, 0x0089, &nv40_gr_object }, /* sifm */
462		{ -1, -1, 0x008a, &nv40_gr_object }, /* ifc */
463		{ -1, -1, 0x009f, &nv40_gr_object }, /* imageblit */
464		{ -1, -1, 0x3062, &nv40_gr_object }, /* surf2d (nv40) */
465		{ -1, -1, 0x3089, &nv40_gr_object }, /* sifm (nv40) */
466		{ -1, -1, 0x309e, &nv40_gr_object }, /* swzsurf (nv40) */
467		{ -1, -1, 0x4097, &nv40_gr_object }, /* curie */
468		{}
469	}
470};
471
472int
473nv40_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
474{
475	return nv40_gr_new_(&nv40_gr, device, index, pgr);
476}
477