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_notify_put(&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) 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_notify_get(&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, TTM_PL_FLAG_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, TTM_PL_FLAG_VRAM, true); 148 if (!ret && nv_crtc->cursor.set_offset) 149 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 150 if (ret) 151 NV_ERROR(drm, "Could not pin/map cursor.\n"); 152 } 153 154 /* Force CLUT to get re-loaded during modeset. */ 155 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 156 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 157 158 nv_crtc->lut.depth = 0; 159 } 160 161 /* This should ensure we don't hit a locking problem when someone 162 * wakes us up via a connector. We should never go into suspend 163 * while the display is on anyways. 164 */ 165 if (runtime) 166 return 0; 167 168 /* Restore mode. */ 169 drm_helper_resume_force_mode(dev); 170 171 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 172 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 173 174 if (!nv_crtc->cursor.nvbo) 175 continue; 176 177 if (nv_crtc->cursor.set_offset) 178 nv_crtc->cursor.set_offset(nv_crtc, 179 nv_crtc->cursor.nvbo->offset); 180 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 181 nv_crtc->cursor_saved_y); 182 } 183 184 return 0; 185 } 186 187 static void 188 nv04_display_destroy(struct drm_device *dev) 189 { 190 struct nv04_display *disp = nv04_display(dev); 191 struct nouveau_drm *drm = nouveau_drm(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_notify_dtor(&disp->flip); 205 206 nouveau_display(dev)->priv = NULL; 207 kfree(disp); 208 209 nvif_object_unmap(&drm->client.device.object); 210 } 211 212 int 213 nv04_display_create(struct drm_device *dev) 214 { 215 struct nouveau_drm *drm = nouveau_drm(dev); 216 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 217 struct dcb_table *dcb = &drm->vbios.dcb; 218 struct drm_connector *connector, *ct; 219 struct drm_encoder *encoder; 220 struct nouveau_encoder *nv_encoder; 221 struct nouveau_crtc *crtc; 222 struct nv04_display *disp; 223 int i, ret; 224 225 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 226 if (!disp) 227 return -ENOMEM; 228 229 nvif_object_map(&drm->client.device.object, NULL, 0); 230 231 nouveau_display(dev)->priv = disp; 232 nouveau_display(dev)->dtor = nv04_display_destroy; 233 nouveau_display(dev)->init = nv04_display_init; 234 nouveau_display(dev)->fini = nv04_display_fini; 235 236 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 237 dev->driver_features &= ~DRIVER_ATOMIC; 238 239 /* Request page flip completion event. */ 240 if (drm->channel) { 241 nvif_notify_ctor(&drm->channel->nvsw, "kmsFlip", nv04_flip_complete, 242 false, NV04_NVSW_NTFY_UEVENT, 243 NULL, 0, 0, &disp->flip); 244 } 245 246 nouveau_hw_save_vga_fonts(dev, 1); 247 248 nv04_crtc_create(dev, 0); 249 if (nv_two_heads(dev)) 250 nv04_crtc_create(dev, 1); 251 252 for (i = 0; i < dcb->entries; i++) { 253 struct dcb_output *dcbent = &dcb->entry[i]; 254 255 connector = nouveau_connector_create(dev, dcbent); 256 if (IS_ERR(connector)) 257 continue; 258 259 switch (dcbent->type) { 260 case DCB_OUTPUT_ANALOG: 261 ret = nv04_dac_create(connector, dcbent); 262 break; 263 case DCB_OUTPUT_LVDS: 264 case DCB_OUTPUT_TMDS: 265 ret = nv04_dfp_create(connector, dcbent); 266 break; 267 case DCB_OUTPUT_TV: 268 if (dcbent->location == DCB_LOC_ON_CHIP) 269 ret = nv17_tv_create(connector, dcbent); 270 else 271 ret = nv04_tv_create(connector, dcbent); 272 break; 273 default: 274 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 275 continue; 276 } 277 278 if (ret) 279 continue; 280 } 281 282 list_for_each_entry_safe(connector, ct, 283 &dev->mode_config.connector_list, head) { 284 if (!connector->possible_encoders) { 285 NV_WARN(drm, "%s has no encoders, removing\n", 286 connector->name); 287 connector->funcs->destroy(connector); 288 } 289 } 290 291 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 292 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 293 struct nvkm_i2c_bus *bus = 294 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 295 nv_encoder->i2c = bus ? &bus->i2c : NULL; 296 } 297 298 /* Save previous state */ 299 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 300 crtc->save(&crtc->base); 301 302 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 303 nv_encoder->enc_save(&nv_encoder->base.base); 304 305 nouveau_overlay_init(dev); 306 307 return 0; 308 } 309