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 #include "nouveau_gem.h" 34 #include "nouveau_chan.h" 35 36 #include <nvif/if0004.h> 37 38 struct nouveau_connector * 39 nv04_encoder_get_connector(struct nouveau_encoder *encoder) 40 { 41 struct drm_device *dev = to_drm_encoder(encoder)->dev; 42 struct drm_connector *connector; 43 struct drm_connector_list_iter conn_iter; 44 struct nouveau_connector *nv_connector = NULL; 45 46 drm_connector_list_iter_begin(dev, &conn_iter); 47 drm_for_each_connector_iter(connector, &conn_iter) { 48 if (connector->encoder == to_drm_encoder(encoder)) 49 nv_connector = nouveau_connector(connector); 50 } 51 drm_connector_list_iter_end(&conn_iter); 52 53 return nv_connector; 54 } 55 56 static void 57 nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend) 58 { 59 struct nouveau_drm *drm = nouveau_drm(dev); 60 struct nv04_display *disp = nv04_display(dev); 61 struct drm_crtc *crtc; 62 63 /* Disable flip completion events. */ 64 nvif_event_block(&disp->flip); 65 66 /* Disable vblank interrupts. */ 67 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 68 if (nv_two_heads(dev)) 69 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 70 71 if (!runtime && !drm->headless) 72 cancel_work_sync(&drm->hpd_work); 73 74 if (!suspend) 75 return; 76 77 /* Un-pin FB and cursors so they'll be evicted to system memory. */ 78 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 79 struct drm_framebuffer *fb = crtc->primary->fb; 80 struct nouveau_bo *nvbo; 81 82 if (!fb || !fb->obj[0]) 83 continue; 84 nvbo = nouveau_gem_object(fb->obj[0]); 85 nouveau_bo_unpin(nvbo); 86 } 87 88 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 89 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 90 if (nv_crtc->cursor.nvbo) { 91 if (nv_crtc->cursor.set_offset) 92 nouveau_bo_unmap(nv_crtc->cursor.nvbo); 93 nouveau_bo_unpin(nv_crtc->cursor.nvbo); 94 } 95 } 96 } 97 98 static int 99 nv04_display_init(struct drm_device *dev, bool resume, bool runtime) 100 { 101 struct nv04_display *disp = nv04_display(dev); 102 struct nouveau_drm *drm = nouveau_drm(dev); 103 struct nouveau_encoder *encoder; 104 struct drm_crtc *crtc; 105 int ret; 106 107 /* meh.. modeset apparently doesn't setup all the regs and depends 108 * on pre-existing state, for now load the state of the card *before* 109 * nouveau was loaded, and then do a modeset. 110 * 111 * best thing to do probably is to make save/restore routines not 112 * save/restore "pre-load" state, but more general so we can save 113 * on suspend too. 114 */ 115 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 116 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 117 nv_crtc->save(&nv_crtc->base); 118 } 119 120 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 121 encoder->enc_save(&encoder->base.base); 122 123 /* Enable flip completion events. */ 124 nvif_event_allow(&disp->flip); 125 126 if (!resume) 127 return 0; 128 129 /* Re-pin FB/cursors. */ 130 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 131 struct drm_framebuffer *fb = crtc->primary->fb; 132 struct nouveau_bo *nvbo; 133 134 if (!fb || !fb->obj[0]) 135 continue; 136 nvbo = nouveau_gem_object(fb->obj[0]); 137 ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, true); 138 if (ret) 139 NV_ERROR(drm, "Could not pin framebuffer\n"); 140 } 141 142 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 143 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 144 if (!nv_crtc->cursor.nvbo) 145 continue; 146 147 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, 148 NOUVEAU_GEM_DOMAIN_VRAM, true); 149 if (!ret && nv_crtc->cursor.set_offset) 150 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 151 if (ret) 152 NV_ERROR(drm, "Could not pin/map cursor.\n"); 153 } 154 155 /* Force CLUT to get re-loaded during modeset. */ 156 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 157 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 158 159 nv_crtc->lut.depth = 0; 160 } 161 162 /* This should ensure we don't hit a locking problem when someone 163 * wakes us up via a connector. We should never go into suspend 164 * while the display is on anyways. 165 */ 166 if (runtime) 167 return 0; 168 169 /* Restore mode. */ 170 drm_helper_resume_force_mode(dev); 171 172 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 173 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 174 175 if (!nv_crtc->cursor.nvbo) 176 continue; 177 178 if (nv_crtc->cursor.set_offset) 179 nv_crtc->cursor.set_offset(nv_crtc, 180 nv_crtc->cursor.nvbo->offset); 181 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 182 nv_crtc->cursor_saved_y); 183 } 184 185 return 0; 186 } 187 188 static void 189 nv04_display_destroy(struct drm_device *dev) 190 { 191 struct nv04_display *disp = nv04_display(dev); 192 struct nouveau_encoder *encoder; 193 struct nouveau_crtc *nv_crtc; 194 195 /* Restore state */ 196 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 197 encoder->enc_restore(&encoder->base.base); 198 199 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 200 nv_crtc->restore(&nv_crtc->base); 201 202 nouveau_hw_save_vga_fonts(dev, 0); 203 204 nvif_event_dtor(&disp->flip); 205 206 nouveau_display(dev)->priv = NULL; 207 vfree(disp); 208 } 209 210 int 211 nv04_display_create(struct drm_device *dev) 212 { 213 struct nouveau_drm *drm = nouveau_drm(dev); 214 struct nvkm_i2c *i2c = nvxx_i2c(drm); 215 struct dcb_table *dcb = &drm->vbios.dcb; 216 struct drm_connector *connector, *ct; 217 struct drm_encoder *encoder; 218 struct nouveau_encoder *nv_encoder; 219 struct nouveau_crtc *crtc; 220 struct nv04_display *disp; 221 int i, ret; 222 223 disp = vzalloc(sizeof(*disp)); 224 if (!disp) 225 return -ENOMEM; 226 227 disp->drm = drm; 228 229 nouveau_display(dev)->priv = disp; 230 nouveau_display(dev)->dtor = nv04_display_destroy; 231 nouveau_display(dev)->init = nv04_display_init; 232 nouveau_display(dev)->fini = nv04_display_fini; 233 234 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 235 dev->driver_features &= ~DRIVER_ATOMIC; 236 237 /* Request page flip completion event. */ 238 if (drm->channel) { 239 ret = nvif_event_ctor(&drm->channel->nvsw, "kmsFlip", 0, nv04_flip_complete, 240 true, NULL, 0, &disp->flip); 241 if (ret) 242 return ret; 243 } 244 245 nouveau_hw_save_vga_fonts(dev, 1); 246 247 nv04_crtc_create(dev, 0); 248 if (nv_two_heads(dev)) 249 nv04_crtc_create(dev, 1); 250 251 for (i = 0; i < dcb->entries; i++) { 252 struct dcb_output *dcbent = &dcb->entry[i]; 253 254 connector = nouveau_connector_create(dev, dcbent->connector); 255 if (IS_ERR(connector)) 256 continue; 257 258 switch (dcbent->type) { 259 case DCB_OUTPUT_ANALOG: 260 ret = nv04_dac_create(connector, dcbent); 261 break; 262 case DCB_OUTPUT_LVDS: 263 case DCB_OUTPUT_TMDS: 264 ret = nv04_dfp_create(connector, dcbent); 265 break; 266 case DCB_OUTPUT_TV: 267 if (dcbent->location == DCB_LOC_ON_CHIP) 268 ret = nv17_tv_create(connector, dcbent); 269 else 270 ret = nv04_tv_create(connector, dcbent); 271 break; 272 default: 273 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 274 continue; 275 } 276 277 if (ret) 278 continue; 279 } 280 281 list_for_each_entry_safe(connector, ct, 282 &dev->mode_config.connector_list, head) { 283 if (!connector->possible_encoders) { 284 NV_WARN(drm, "%s has no encoders, removing\n", 285 connector->name); 286 connector->funcs->destroy(connector); 287 } 288 } 289 290 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 291 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 292 struct nvkm_i2c_bus *bus = 293 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 294 nv_encoder->i2c = bus ? &bus->i2c : NULL; 295 } 296 297 /* Save previous state */ 298 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 299 crtc->save(&crtc->base); 300 301 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 302 nv_encoder->enc_save(&nv_encoder->base.base); 303 304 nouveau_overlay_init(dev); 305 306 return 0; 307 } 308