1 /*
2 * Copyright 2009 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 * Author: Ben Skeggs
23 */
24
25 #include <drm/drm_crtc_helper.h>
26
27 #include "nouveau_drv.h"
28 #include "nouveau_reg.h"
29 #include "hw.h"
30 #include "nouveau_encoder.h"
31 #include "nouveau_connector.h"
32 #include "nouveau_bo.h"
33
34 #include <nvif/if0004.h>
35
36 static void
nv04_display_fini(struct drm_device * dev,bool suspend)37 nv04_display_fini(struct drm_device *dev, bool suspend)
38 {
39 struct nv04_display *disp = nv04_display(dev);
40 struct drm_crtc *crtc;
41
42 /* Disable flip completion events. */
43 nvif_notify_put(&disp->flip);
44
45 /* Disable vblank interrupts. */
46 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0);
47 if (nv_two_heads(dev))
48 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0);
49
50 if (!suspend)
51 return;
52
53 /* Un-pin FB and cursors so they'll be evicted to system memory. */
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
55 struct nouveau_framebuffer *nouveau_fb;
56
57 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
58 if (!nouveau_fb || !nouveau_fb->nvbo)
59 continue;
60
61 nouveau_bo_unpin(nouveau_fb->nvbo);
62 }
63
64 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
65 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
66 if (nv_crtc->cursor.nvbo) {
67 if (nv_crtc->cursor.set_offset)
68 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
69 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
70 }
71 }
72 }
73
74 static int
nv04_display_init(struct drm_device * dev,bool resume,bool runtime)75 nv04_display_init(struct drm_device *dev, bool resume, bool runtime)
76 {
77 struct nv04_display *disp = nv04_display(dev);
78 struct nouveau_drm *drm = nouveau_drm(dev);
79 struct nouveau_encoder *encoder;
80 struct drm_crtc *crtc;
81 int ret;
82
83 /* meh.. modeset apparently doesn't setup all the regs and depends
84 * on pre-existing state, for now load the state of the card *before*
85 * nouveau was loaded, and then do a modeset.
86 *
87 * best thing to do probably is to make save/restore routines not
88 * save/restore "pre-load" state, but more general so we can save
89 * on suspend too.
90 */
91 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
92 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
93 nv_crtc->save(&nv_crtc->base);
94 }
95
96 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
97 encoder->enc_save(&encoder->base.base);
98
99 /* Enable flip completion events. */
100 nvif_notify_get(&disp->flip);
101
102 if (!resume)
103 return 0;
104
105 /* Re-pin FB/cursors. */
106 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
107 struct nouveau_framebuffer *nouveau_fb;
108
109 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
110 if (!nouveau_fb || !nouveau_fb->nvbo)
111 continue;
112
113 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
114 if (ret)
115 NV_ERROR(drm, "Could not pin framebuffer\n");
116 }
117
118 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
119 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
120 if (!nv_crtc->cursor.nvbo)
121 continue;
122
123 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
124 if (!ret && nv_crtc->cursor.set_offset)
125 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
126 if (ret)
127 NV_ERROR(drm, "Could not pin/map cursor.\n");
128 }
129
130 /* Force CLUT to get re-loaded during modeset. */
131 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
132 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
133
134 nv_crtc->lut.depth = 0;
135 }
136
137 /* This should ensure we don't hit a locking problem when someone
138 * wakes us up via a connector. We should never go into suspend
139 * while the display is on anyways.
140 */
141 if (runtime)
142 return 0;
143
144 /* Restore mode. */
145 drm_helper_resume_force_mode(dev);
146
147 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
148 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
149
150 if (!nv_crtc->cursor.nvbo)
151 continue;
152
153 if (nv_crtc->cursor.set_offset)
154 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
155 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
156 nv_crtc->cursor_saved_y);
157 }
158
159 return 0;
160 }
161
162 static void
nv04_display_destroy(struct drm_device * dev)163 nv04_display_destroy(struct drm_device *dev)
164 {
165 struct nv04_display *disp = nv04_display(dev);
166 struct nouveau_drm *drm = nouveau_drm(dev);
167 struct nouveau_encoder *encoder;
168 struct nouveau_crtc *nv_crtc;
169
170 /* Restore state */
171 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head)
172 encoder->enc_restore(&encoder->base.base);
173
174 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head)
175 nv_crtc->restore(&nv_crtc->base);
176
177 nouveau_hw_save_vga_fonts(dev, 0);
178
179 nvif_notify_fini(&disp->flip);
180
181 nouveau_display(dev)->priv = NULL;
182 kfree(disp);
183
184 nvif_object_unmap(&drm->client.device.object);
185 }
186
187 int
nv04_display_create(struct drm_device * dev)188 nv04_display_create(struct drm_device *dev)
189 {
190 struct nouveau_drm *drm = nouveau_drm(dev);
191 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device);
192 struct dcb_table *dcb = &drm->vbios.dcb;
193 struct drm_connector *connector, *ct;
194 struct drm_encoder *encoder;
195 struct nouveau_encoder *nv_encoder;
196 struct nouveau_crtc *crtc;
197 struct nv04_display *disp;
198 int i, ret;
199
200 disp = kzalloc(sizeof(*disp), GFP_KERNEL);
201 if (!disp)
202 return -ENOMEM;
203
204 nvif_object_map(&drm->client.device.object, NULL, 0);
205
206 nouveau_display(dev)->priv = disp;
207 nouveau_display(dev)->dtor = nv04_display_destroy;
208 nouveau_display(dev)->init = nv04_display_init;
209 nouveau_display(dev)->fini = nv04_display_fini;
210
211 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */
212 dev->driver_features &= ~DRIVER_ATOMIC;
213
214 /* Request page flip completion event. */
215 if (drm->nvsw.client) {
216 nvif_notify_init(&drm->nvsw, nv04_flip_complete,
217 false, NV04_NVSW_NTFY_UEVENT,
218 NULL, 0, 0, &disp->flip);
219 }
220
221 nouveau_hw_save_vga_fonts(dev, 1);
222
223 nv04_crtc_create(dev, 0);
224 if (nv_two_heads(dev))
225 nv04_crtc_create(dev, 1);
226
227 for (i = 0; i < dcb->entries; i++) {
228 struct dcb_output *dcbent = &dcb->entry[i];
229
230 connector = nouveau_connector_create(dev, dcbent);
231 if (IS_ERR(connector))
232 continue;
233
234 switch (dcbent->type) {
235 case DCB_OUTPUT_ANALOG:
236 ret = nv04_dac_create(connector, dcbent);
237 break;
238 case DCB_OUTPUT_LVDS:
239 case DCB_OUTPUT_TMDS:
240 ret = nv04_dfp_create(connector, dcbent);
241 break;
242 case DCB_OUTPUT_TV:
243 if (dcbent->location == DCB_LOC_ON_CHIP)
244 ret = nv17_tv_create(connector, dcbent);
245 else
246 ret = nv04_tv_create(connector, dcbent);
247 break;
248 default:
249 NV_WARN(drm, "DCB type %d not known\n", dcbent->type);
250 continue;
251 }
252
253 if (ret)
254 continue;
255 }
256
257 list_for_each_entry_safe(connector, ct,
258 &dev->mode_config.connector_list, head) {
259 if (!connector->encoder_ids[0]) {
260 NV_WARN(drm, "%s has no encoders, removing\n",
261 connector->name);
262 connector->funcs->destroy(connector);
263 }
264 }
265
266 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
267 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
268 struct nvkm_i2c_bus *bus =
269 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index);
270 nv_encoder->i2c = bus ? &bus->i2c : NULL;
271 }
272
273 /* Save previous state */
274 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
275 crtc->save(&crtc->base);
276
277 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head)
278 nv_encoder->enc_save(&nv_encoder->base.base);
279
280 nouveau_overlay_init(dev);
281
282 return 0;
283 }
284
