summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/dispnv04/disp.c
blob: 4b7497a8755cdb881586ecf5cc41dd151449f4bf (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
/*
 * Copyright 2009 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.
 *
 * Author: Ben Skeggs
 */

#include <drm/drm_crtc_helper.h>

#include "nouveau_drv.h"
#include "nouveau_reg.h"
#include "hw.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_bo.h"
#include "nouveau_gem.h"
#include "nouveau_chan.h"

#include <nvif/if0004.h>

struct nouveau_connector *
nv04_encoder_get_connector(struct nouveau_encoder *encoder)
{
	struct drm_device *dev = to_drm_encoder(encoder)->dev;
	struct drm_connector *connector;
	struct drm_connector_list_iter conn_iter;
	struct nouveau_connector *nv_connector = NULL;

	drm_connector_list_iter_begin(dev, &conn_iter);
	drm_for_each_connector_iter(connector, &conn_iter) {
		if (connector->encoder == to_drm_encoder(encoder))
			nv_connector = nouveau_connector(connector);
	}
	drm_connector_list_iter_end(&conn_iter);

	return nv_connector;
}

static void
nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend)
{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nv04_display *disp = nv04_display(dev);
	struct drm_crtc *crtc;

	/* Disable flip completion events. */
	nvif_event_block(&disp->flip);

	/* Disable vblank interrupts. */
	NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
	if (nv_two_heads(dev))
		NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);

	if (!runtime && !drm->headless)
		cancel_work_sync(&drm->hpd_work);

	if (!suspend)
		return;

	/* Un-pin FB and cursors so they'll be evicted to system memory. */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct drm_framebuffer *fb = crtc->primary->fb;
		struct nouveau_bo *nvbo;

		if (!fb || !fb->obj[0])
			continue;
		nvbo = nouveau_gem_object(fb->obj[0]);
		nouveau_bo_unpin(nvbo);
	}

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
		if (nv_crtc->cursor.nvbo) {
			if (nv_crtc->cursor.set_offset)
				nouveau_bo_unmap(nv_crtc->cursor.nvbo);
			nouveau_bo_unpin(nv_crtc->cursor.nvbo);
		}
	}
}

static int
nv04_display_init(struct drm_device *dev, bool resume, bool runtime)
{
	struct nv04_display *disp = nv04_display(dev);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_encoder *encoder;
	struct drm_crtc *crtc;
	int ret;

	/* meh.. modeset apparently doesn't setup all the regs and depends
	 * on pre-existing state, for now load the state of the card *before*
	 * nouveau was loaded, and then do a modeset.
	 *
	 * best thing to do probably is to make save/restore routines not
	 * save/restore "pre-load" state, but more general so we can save
	 * on suspend too.
	 */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
		nv_crtc->save(&nv_crtc->base);
	}

	list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
		encoder->enc_save(&encoder->base.base);

	/* Enable flip completion events. */
	nvif_event_allow(&disp->flip);

	if (!resume)
		return 0;

	/* Re-pin FB/cursors. */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct drm_framebuffer *fb = crtc->primary->fb;
		struct nouveau_bo *nvbo;

		if (!fb || !fb->obj[0])
			continue;
		nvbo = nouveau_gem_object(fb->obj[0]);
		ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true);
		if (ret)
			NV_ERROR(drm, "Could not pin framebuffer\n");
	}

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
		if (!nv_crtc->cursor.nvbo)
			continue;

		ret = nouveau_bo_pin(nv_crtc->cursor.nvbo,
				     NOUVEAU_GEM_DOMAIN_VRAM, true);
		if (!ret && nv_crtc->cursor.set_offset)
			ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
		if (ret)
			NV_ERROR(drm, "Could not pin/map cursor.\n");
	}

	/* Force CLUT to get re-loaded during modeset. */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

		nv_crtc->lut.depth = 0;
	}

	/* This should ensure we don't hit a locking problem when someone
	 * wakes us up via a connector.  We should never go into suspend
	 * while the display is on anyways.
	 */
	if (runtime)
		return 0;

	/* Restore mode. */
	drm_helper_resume_force_mode(dev);

	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);

		if (!nv_crtc->cursor.nvbo)
			continue;

		if (nv_crtc->cursor.set_offset)
			nv_crtc->cursor.set_offset(nv_crtc,
						   nv_crtc->cursor.nvbo->offset);
		nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
						 nv_crtc->cursor_saved_y);
	}

	return 0;
}

static void
nv04_display_destroy(struct drm_device *dev)
{
	struct nv04_display *disp = nv04_display(dev);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_encoder *encoder;
	struct nouveau_crtc *nv_crtc;

	/* Restore state */
	list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
		encoder->enc_restore(&encoder->base.base);

	list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head)
		nv_crtc->restore(&nv_crtc->base);

	nouveau_hw_save_vga_fonts(dev, 0);

	nvif_event_dtor(&disp->flip);

	nouveau_display(dev)->priv = NULL;
	vfree(disp);

	nvif_object_unmap(&drm->client.device.object);
}

int
nv04_display_create(struct drm_device *dev)
{
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device);
	struct dcb_table *dcb = &drm->vbios.dcb;
	struct drm_connector *connector, *ct;
	struct drm_encoder *encoder;
	struct nouveau_encoder *nv_encoder;
	struct nouveau_crtc *crtc;
	struct nv04_display *disp;
	int i, ret;

	disp = vzalloc(sizeof(*disp));
	if (!disp)
		return -ENOMEM;

	disp->drm = drm;

	nvif_object_map(&drm->client.device.object, NULL, 0);

	nouveau_display(dev)->priv = disp;
	nouveau_display(dev)->dtor = nv04_display_destroy;
	nouveau_display(dev)->init = nv04_display_init;
	nouveau_display(dev)->fini = nv04_display_fini;

	/* Pre-nv50 doesn't support atomic, so don't expose the ioctls */
	dev->driver_features &= ~DRIVER_ATOMIC;

	/* Request page flip completion event. */
	if (drm->channel) {
		ret = nvif_event_ctor(&drm->channel->nvsw, "kmsFlip", 0, nv04_flip_complete,
				      true, NULL, 0, &disp->flip);
		if (ret)
			return ret;
	}

	nouveau_hw_save_vga_fonts(dev, 1);

	nv04_crtc_create(dev, 0);
	if (nv_two_heads(dev))
		nv04_crtc_create(dev, 1);

	for (i = 0; i < dcb->entries; i++) {
		struct dcb_output *dcbent = &dcb->entry[i];

		connector = nouveau_connector_create(dev, dcbent->connector);
		if (IS_ERR(connector))
			continue;

		switch (dcbent->type) {
		case DCB_OUTPUT_ANALOG:
			ret = nv04_dac_create(connector, dcbent);
			break;
		case DCB_OUTPUT_LVDS:
		case DCB_OUTPUT_TMDS:
			ret = nv04_dfp_create(connector, dcbent);
			break;
		case DCB_OUTPUT_TV:
			if (dcbent->location == DCB_LOC_ON_CHIP)
				ret = nv17_tv_create(connector, dcbent);
			else
				ret = nv04_tv_create(connector, dcbent);
			break;
		default:
			NV_WARN(drm, "DCB type %d not known\n", dcbent->type);
			continue;
		}

		if (ret)
			continue;
	}

	list_for_each_entry_safe(connector, ct,
				 &dev->mode_config.connector_list, head) {
		if (!connector->possible_encoders) {
			NV_WARN(drm, "%s has no encoders, removing\n",
				connector->name);
			connector->funcs->destroy(connector);
		}
	}

	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
		struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
		struct nvkm_i2c_bus *bus =
			nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index);
		nv_encoder->i2c = bus ? &bus->i2c : NULL;
	}

	/* Save previous state */
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
		crtc->save(&crtc->base);

	list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head)
		nv_encoder->enc_save(&nv_encoder->base.base);

	nouveau_overlay_init(dev);

	return 0;
}