aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nv50_evo.c
blob: c8e83c1a4de8f1381236ba750f670639b4ab155e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
/*
 * Copyright 2010 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */

#include "drmP.h"

#include "nouveau_drv.h"
#include "nouveau_dma.h"
#include "nouveau_ramht.h"
#include "nv50_display.h"

static void
nv50_evo_channel_del(struct nouveau_channel **pevo)
{
	struct nouveau_channel *evo = *pevo;

	if (!evo)
		return;
	*pevo = NULL;

	nouveau_gpuobj_channel_takedown(evo);
	nouveau_bo_unmap(evo->pushbuf_bo);
	nouveau_bo_ref(NULL, &evo->pushbuf_bo);

	if (evo->user)
		iounmap(evo->user);

	kfree(evo);
}

void
nv50_evo_dmaobj_init(struct nouveau_gpuobj *obj, u32 memtype, u64 base, u64 size)
{
	struct drm_nouveau_private *dev_priv = obj->dev->dev_private;
	u32 flags5;

	if (dev_priv->chipset < 0xc0) {
		/* not supported on 0x50, specified in format mthd */
		if (dev_priv->chipset == 0x50)
			memtype = 0;
		flags5 = 0x00010000;
	} else {
		if (memtype & 0x80000000)
			flags5 = 0x00000000; /* large pages */
		else
			flags5 = 0x00020000;
	}

	nv50_gpuobj_dma_init(obj, 0, 0x3d, base, size, NV_MEM_TARGET_VRAM,
			     NV_MEM_ACCESS_RW, (memtype >> 8) & 0xff, 0);
	nv_wo32(obj, 0x14, flags5);
	dev_priv->engine.instmem.flush(obj->dev);
}

int
nv50_evo_dmaobj_new(struct nouveau_channel *evo, u32 handle, u32 memtype,
		    u64 base, u64 size, struct nouveau_gpuobj **pobj)
{
	struct nv50_display *disp = nv50_display(evo->dev);
	struct nouveau_gpuobj *obj = NULL;
	int ret;

	ret = nouveau_gpuobj_new(evo->dev, disp->master, 6*4, 32, 0, &obj);
	if (ret)
		return ret;
	obj->engine = NVOBJ_ENGINE_DISPLAY;

	nv50_evo_dmaobj_init(obj, memtype, base, size);

	ret = nouveau_ramht_insert(evo, handle, obj);
	if (ret)
		goto out;

	if (pobj)
		nouveau_gpuobj_ref(obj, pobj);
out:
	nouveau_gpuobj_ref(NULL, &obj);
	return ret;
}

static int
nv50_evo_channel_new(struct drm_device *dev, int chid,
		     struct nouveau_channel **pevo)
{
	struct nv50_display *disp = nv50_display(dev);
	struct nouveau_channel *evo;
	int ret;

	evo = kzalloc(sizeof(struct nouveau_channel), GFP_KERNEL);
	if (!evo)
		return -ENOMEM;
	*pevo = evo;

	evo->id = chid;
	evo->dev = dev;
	evo->user_get = 4;
	evo->user_put = 0;

	ret = nouveau_bo_new(dev, NULL, 4096, 0, TTM_PL_FLAG_VRAM, 0, 0,
			     &evo->pushbuf_bo);
	if (ret == 0)
		ret = nouveau_bo_pin(evo->pushbuf_bo, TTM_PL_FLAG_VRAM);
	if (ret) {
		NV_ERROR(dev, "Error creating EVO DMA push buffer: %d\n", ret);
		nv50_evo_channel_del(pevo);
		return ret;
	}

	ret = nouveau_bo_map(evo->pushbuf_bo);
	if (ret) {
		NV_ERROR(dev, "Error mapping EVO DMA push buffer: %d\n", ret);
		nv50_evo_channel_del(pevo);
		return ret;
	}

	evo->user = ioremap(pci_resource_start(dev->pdev, 0) +
			    NV50_PDISPLAY_USER(evo->id), PAGE_SIZE);
	if (!evo->user) {
		NV_ERROR(dev, "Error mapping EVO control regs.\n");
		nv50_evo_channel_del(pevo);
		return -ENOMEM;
	}

	/* bind primary evo channel's ramht to the channel */
	if (disp->master && evo != disp->master)
		nouveau_ramht_ref(disp->master->ramht, &evo->ramht, NULL);

	return 0;
}

static int
nv50_evo_channel_init(struct nouveau_channel *evo)
{
	struct drm_device *dev = evo->dev;
	int id = evo->id, ret, i;
	u64 pushbuf = evo->pushbuf_bo->bo.mem.start << PAGE_SHIFT;
	u32 tmp;

	tmp = nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id));
	if ((tmp & 0x009f0000) == 0x00020000)
		nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00800000);

	tmp = nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id));
	if ((tmp & 0x003f0000) == 0x00030000)
		nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), tmp | 0x00600000);

	/* initialise fifo */
	nv_wr32(dev, NV50_PDISPLAY_EVO_DMA_CB(id), pushbuf >> 8 |
		     NV50_PDISPLAY_EVO_DMA_CB_LOCATION_VRAM |
		     NV50_PDISPLAY_EVO_DMA_CB_VALID);
	nv_wr32(dev, NV50_PDISPLAY_EVO_UNK2(id), 0x00010000);
	nv_wr32(dev, NV50_PDISPLAY_EVO_HASH_TAG(id), id);
	nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), NV50_PDISPLAY_EVO_CTRL_DMA,
		     NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);

	nv_wr32(dev, NV50_PDISPLAY_USER_PUT(id), 0x00000000);
	nv_wr32(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x01000003 |
		     NV50_PDISPLAY_EVO_CTRL_DMA_ENABLED);
	if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x80000000, 0x00000000)) {
		NV_ERROR(dev, "EvoCh %d init timeout: 0x%08x\n", id,
			 nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id)));
		return -EBUSY;
	}

	/* enable error reporting on the channel */
	nv_mask(dev, 0x610028, 0x00000000, 0x00010001 << id);

	evo->dma.max = (4096/4) - 2;
	evo->dma.max &= ~7;
	evo->dma.put = 0;
	evo->dma.cur = evo->dma.put;
	evo->dma.free = evo->dma.max - evo->dma.cur;

	ret = RING_SPACE(evo, NOUVEAU_DMA_SKIPS);
	if (ret)
		return ret;

	for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
		OUT_RING(evo, 0);

	return 0;
}

static void
nv50_evo_channel_fini(struct nouveau_channel *evo)
{
	struct drm_device *dev = evo->dev;
	int id = evo->id;

	nv_mask(dev, 0x610028, 0x00010001 << id, 0x00000000);
	nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x00001010, 0x00001000);
	nv_wr32(dev, NV50_PDISPLAY_INTR_0, (1 << id));
	nv_mask(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x00000003, 0x00000000);
	if (!nv_wait(dev, NV50_PDISPLAY_EVO_CTRL(id), 0x001e0000, 0x00000000)) {
		NV_ERROR(dev, "EvoCh %d takedown timeout: 0x%08x\n", id,
			 nv_rd32(dev, NV50_PDISPLAY_EVO_CTRL(id)));
	}
}

static void
nv50_evo_destroy(struct drm_device *dev)
{
	struct nv50_display *disp = nv50_display(dev);
	int i;

	for (i = 0; i < 2; i++) {
		if (disp->crtc[i].sem.bo) {
			nouveau_bo_unmap(disp->crtc[i].sem.bo);
			nouveau_bo_ref(NULL, &disp->crtc[i].sem.bo);
		}
		nv50_evo_channel_del(&disp->crtc[i].sync);
	}
	nouveau_gpuobj_ref(NULL, &disp->ntfy);
	nv50_evo_channel_del(&disp->master);
}

static int
nv50_evo_create(struct drm_device *dev)
{
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nv50_display *disp = nv50_display(dev);
	struct nouveau_gpuobj *ramht = NULL;
	struct nouveau_channel *evo;
	int ret, i, j;

	/* create primary evo channel, the one we use for modesetting
	 * purporses
	 */
	ret = nv50_evo_channel_new(dev, 0, &disp->master);
	if (ret)
		return ret;
	evo = disp->master;

	/* setup object management on it, any other evo channel will
	 * use this also as there's no per-channel support on the
	 * hardware
	 */
	ret = nouveau_gpuobj_new(dev, NULL, 32768, 65536,
				 NVOBJ_FLAG_ZERO_ALLOC, &evo->ramin);
	if (ret) {
		NV_ERROR(dev, "Error allocating EVO channel memory: %d\n", ret);
		goto err;
	}

	ret = drm_mm_init(&evo->ramin_heap, 0, 32768);
	if (ret) {
		NV_ERROR(dev, "Error initialising EVO PRAMIN heap: %d\n", ret);
		goto err;
	}

	ret = nouveau_gpuobj_new(dev, evo, 4096, 16, 0, &ramht);
	if (ret) {
		NV_ERROR(dev, "Unable to allocate EVO RAMHT: %d\n", ret);
		goto err;
	}

	ret = nouveau_ramht_new(dev, ramht, &evo->ramht);
	nouveau_gpuobj_ref(NULL, &ramht);
	if (ret)
		goto err;

	/* not sure exactly what this is..
	 *
	 * the first dword of the structure is used by nvidia to wait on
	 * full completion of an EVO "update" command.
	 *
	 * method 0x8c on the master evo channel will fill a lot more of
	 * this structure with some undefined info
	 */
	ret = nouveau_gpuobj_new(dev, disp->master, 0x1000, 0,
				 NVOBJ_FLAG_ZERO_ALLOC, &disp->ntfy);
	if (ret)
		goto err;

	ret = nv50_evo_dmaobj_new(disp->master, NvEvoSync, 0x0000,
				  disp->ntfy->vinst, disp->ntfy->size, NULL);
	if (ret)
		goto err;

	/* create some default objects for the scanout memtypes we support */
	ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM, 0x0000,
				  0, dev_priv->vram_size, NULL);
	if (ret)
		goto err;

	ret = nv50_evo_dmaobj_new(disp->master, NvEvoVRAM_LP, 0x80000000,
				  0, dev_priv->vram_size, NULL);
	if (ret)
		goto err;

	ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB32, 0x80000000 |
				  (dev_priv->chipset < 0xc0 ? 0x7a00 : 0xfe00),
				  0, dev_priv->vram_size, NULL);
	if (ret)
		goto err;

	ret = nv50_evo_dmaobj_new(disp->master, NvEvoFB16, 0x80000000 |
				  (dev_priv->chipset < 0xc0 ? 0x7000 : 0xfe00),
				  0, dev_priv->vram_size, NULL);
	if (ret)
		goto err;

	/* create "display sync" channels and other structures we need
	 * to implement page flipping
	 */
	for (i = 0; i < 2; i++) {
		struct nv50_display_crtc *dispc = &disp->crtc[i];
		u64 offset;

		ret = nv50_evo_channel_new(dev, 1 + i, &dispc->sync);
		if (ret)
			goto err;

		ret = nouveau_bo_new(dev, NULL, 4096, 0x1000, TTM_PL_FLAG_VRAM,
				     0, 0x0000, &dispc->sem.bo);
		if (!ret) {
			offset = dispc->sem.bo->bo.mem.start << PAGE_SHIFT;

			ret = nouveau_bo_pin(dispc->sem.bo, TTM_PL_FLAG_VRAM);
			if (!ret)
				ret = nouveau_bo_map(dispc->sem.bo);
			if (ret)
				nouveau_bo_ref(NULL, &dispc->sem.bo);
		}

		if (ret)
			goto err;

		ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoSync, 0x0000,
					  offset, 4096, NULL);
		if (ret)
			goto err;

		ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoVRAM_LP, 0x80000000,
					  0, dev_priv->vram_size, NULL);
		if (ret)
			goto err;

		ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB32, 0x80000000 |
					  (dev_priv->chipset < 0xc0 ?
					  0x7a00 : 0xfe00),
					  0, dev_priv->vram_size, NULL);
		if (ret)
			goto err;

		ret = nv50_evo_dmaobj_new(dispc->sync, NvEvoFB16, 0x80000000 |
					  (dev_priv->chipset < 0xc0 ?
					  0x7000 : 0xfe00),
					  0, dev_priv->vram_size, NULL);
		if (ret)
			goto err;

		for (j = 0; j < 4096; j += 4)
			nouveau_bo_wr32(dispc->sem.bo, j / 4, 0x74b1e000);
		dispc->sem.offset = 0;
	}

	return 0;

err:
	nv50_evo_destroy(dev);
	return ret;
}

int
nv50_evo_init(struct drm_device *dev)
{
	struct nv50_display *disp = nv50_display(dev);
	int ret, i;

	if (!disp->master) {
		ret = nv50_evo_create(dev);
		if (ret)
			return ret;
	}

	ret = nv50_evo_channel_init(disp->master);
	if (ret)
		return ret;

	for (i = 0; i < 2; i++) {
		ret = nv50_evo_channel_init(disp->crtc[i].sync);
		if (ret)
			return ret;
	}

	return 0;
}

void
nv50_evo_fini(struct drm_device *dev)
{
	struct nv50_display *disp = nv50_display(dev);
	int i;

	for (i = 0; i < 2; i++) {
		if (disp->crtc[i].sync)
			nv50_evo_channel_fini(disp->crtc[i].sync);
	}

	if (disp->master)
		nv50_evo_channel_fini(disp->master);

	nv50_evo_destroy(dev);
}