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 
33 u64
34 nv40_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 
43 static int
44 nv40_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 
64 const struct nvkm_object_func
65 nv40_gr_object = {
66 	.bind = nv40_gr_object_bind,
67 };
68 
69 /*******************************************************************************
70  * PGRAPH context
71  ******************************************************************************/
72 
73 static int
74 nv40_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 
91 static int
92 nv40_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 
129 static void *
130 nv40_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 
140 static const struct nvkm_object_func
141 nv40_gr_chan = {
142 	.dtor = nv40_gr_chan_dtor,
143 	.fini = nv40_gr_chan_fini,
144 	.bind = nv40_gr_chan_bind,
145 };
146 
147 int
148 nv40_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 
172 static void
173 nv40_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 
231 void
232 nv40_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 
286 int
287 nv40_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 
430 int
431 nv40_gr_new_(const struct nvkm_gr_func *func, struct nvkm_device *device,
432 	     enum nvkm_subdev_type type, int inst, 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, type, inst, true, &gr->base);
442 }
443 
444 static const struct nvkm_gr_func
445 nv40_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 
472 int
473 nv40_gr_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gr **pgr)
474 {
475 	return nv40_gr_new_(&nv40_gr, device, type, inst, pgr);
476 }
477