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 static void 39 nv04_display_fini(struct drm_device *dev, bool suspend) 40 { 41 struct nv04_display *disp = nv04_display(dev); 42 struct drm_crtc *crtc; 43 44 /* Disable flip completion events. */ 45 nvif_notify_put(&disp->flip); 46 47 /* Disable vblank interrupts. */ 48 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 49 if (nv_two_heads(dev)) 50 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 51 52 if (!suspend) 53 return; 54 55 /* Un-pin FB and cursors so they'll be evicted to system memory. */ 56 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 57 struct drm_framebuffer *fb = crtc->primary->fb; 58 struct nouveau_bo *nvbo; 59 60 if (!fb || !fb->obj[0]) 61 continue; 62 nvbo = nouveau_gem_object(fb->obj[0]); 63 nouveau_bo_unpin(nvbo); 64 } 65 66 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 67 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 68 if (nv_crtc->cursor.nvbo) { 69 if (nv_crtc->cursor.set_offset) 70 nouveau_bo_unmap(nv_crtc->cursor.nvbo); 71 nouveau_bo_unpin(nv_crtc->cursor.nvbo); 72 } 73 } 74 } 75 76 static int 77 nv04_display_init(struct drm_device *dev, bool resume, bool runtime) 78 { 79 struct nv04_display *disp = nv04_display(dev); 80 struct nouveau_drm *drm = nouveau_drm(dev); 81 struct nouveau_encoder *encoder; 82 struct drm_crtc *crtc; 83 int ret; 84 85 /* meh.. modeset apparently doesn't setup all the regs and depends 86 * on pre-existing state, for now load the state of the card *before* 87 * nouveau was loaded, and then do a modeset. 88 * 89 * best thing to do probably is to make save/restore routines not 90 * save/restore "pre-load" state, but more general so we can save 91 * on suspend too. 92 */ 93 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 94 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 95 nv_crtc->save(&nv_crtc->base); 96 } 97 98 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 99 encoder->enc_save(&encoder->base.base); 100 101 /* Enable flip completion events. */ 102 nvif_notify_get(&disp->flip); 103 104 if (!resume) 105 return 0; 106 107 /* Re-pin FB/cursors. */ 108 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 109 struct drm_framebuffer *fb = crtc->primary->fb; 110 struct nouveau_bo *nvbo; 111 112 if (!fb || !fb->obj[0]) 113 continue; 114 nvbo = nouveau_gem_object(fb->obj[0]); 115 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, true); 116 if (ret) 117 NV_ERROR(drm, "Could not pin framebuffer\n"); 118 } 119 120 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 121 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 122 if (!nv_crtc->cursor.nvbo) 123 continue; 124 125 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true); 126 if (!ret && nv_crtc->cursor.set_offset) 127 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 128 if (ret) 129 NV_ERROR(drm, "Could not pin/map cursor.\n"); 130 } 131 132 /* Force CLUT to get re-loaded during modeset. */ 133 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 134 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 135 136 nv_crtc->lut.depth = 0; 137 } 138 139 /* This should ensure we don't hit a locking problem when someone 140 * wakes us up via a connector. We should never go into suspend 141 * while the display is on anyways. 142 */ 143 if (runtime) 144 return 0; 145 146 /* Restore mode. */ 147 drm_helper_resume_force_mode(dev); 148 149 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 150 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 151 152 if (!nv_crtc->cursor.nvbo) 153 continue; 154 155 if (nv_crtc->cursor.set_offset) 156 nv_crtc->cursor.set_offset(nv_crtc, 157 nv_crtc->cursor.nvbo->offset); 158 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 159 nv_crtc->cursor_saved_y); 160 } 161 162 return 0; 163 } 164 165 static void 166 nv04_display_destroy(struct drm_device *dev) 167 { 168 struct nv04_display *disp = nv04_display(dev); 169 struct nouveau_drm *drm = nouveau_drm(dev); 170 struct nouveau_encoder *encoder; 171 struct nouveau_crtc *nv_crtc; 172 173 /* Restore state */ 174 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 175 encoder->enc_restore(&encoder->base.base); 176 177 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 178 nv_crtc->restore(&nv_crtc->base); 179 180 nouveau_hw_save_vga_fonts(dev, 0); 181 182 nvif_notify_dtor(&disp->flip); 183 184 nouveau_display(dev)->priv = NULL; 185 kfree(disp); 186 187 nvif_object_unmap(&drm->client.device.object); 188 } 189 190 int 191 nv04_display_create(struct drm_device *dev) 192 { 193 struct nouveau_drm *drm = nouveau_drm(dev); 194 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 195 struct dcb_table *dcb = &drm->vbios.dcb; 196 struct drm_connector *connector, *ct; 197 struct drm_encoder *encoder; 198 struct nouveau_encoder *nv_encoder; 199 struct nouveau_crtc *crtc; 200 struct nv04_display *disp; 201 int i, ret; 202 203 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 204 if (!disp) 205 return -ENOMEM; 206 207 nvif_object_map(&drm->client.device.object, NULL, 0); 208 209 nouveau_display(dev)->priv = disp; 210 nouveau_display(dev)->dtor = nv04_display_destroy; 211 nouveau_display(dev)->init = nv04_display_init; 212 nouveau_display(dev)->fini = nv04_display_fini; 213 214 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 215 dev->driver_features &= ~DRIVER_ATOMIC; 216 217 /* Request page flip completion event. */ 218 if (drm->channel) { 219 nvif_notify_ctor(&drm->channel->nvsw, "kmsFlip", nv04_flip_complete, 220 false, NV04_NVSW_NTFY_UEVENT, 221 NULL, 0, 0, &disp->flip); 222 } 223 224 nouveau_hw_save_vga_fonts(dev, 1); 225 226 nv04_crtc_create(dev, 0); 227 if (nv_two_heads(dev)) 228 nv04_crtc_create(dev, 1); 229 230 for (i = 0; i < dcb->entries; i++) { 231 struct dcb_output *dcbent = &dcb->entry[i]; 232 233 connector = nouveau_connector_create(dev, dcbent); 234 if (IS_ERR(connector)) 235 continue; 236 237 switch (dcbent->type) { 238 case DCB_OUTPUT_ANALOG: 239 ret = nv04_dac_create(connector, dcbent); 240 break; 241 case DCB_OUTPUT_LVDS: 242 case DCB_OUTPUT_TMDS: 243 ret = nv04_dfp_create(connector, dcbent); 244 break; 245 case DCB_OUTPUT_TV: 246 if (dcbent->location == DCB_LOC_ON_CHIP) 247 ret = nv17_tv_create(connector, dcbent); 248 else 249 ret = nv04_tv_create(connector, dcbent); 250 break; 251 default: 252 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 253 continue; 254 } 255 256 if (ret) 257 continue; 258 } 259 260 list_for_each_entry_safe(connector, ct, 261 &dev->mode_config.connector_list, head) { 262 if (!connector->possible_encoders) { 263 NV_WARN(drm, "%s has no encoders, removing\n", 264 connector->name); 265 connector->funcs->destroy(connector); 266 } 267 } 268 269 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 270 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 271 struct nvkm_i2c_bus *bus = 272 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 273 nv_encoder->i2c = bus ? &bus->i2c : NULL; 274 } 275 276 /* Save previous state */ 277 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 278 crtc->save(&crtc->base); 279 280 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 281 nv_encoder->enc_save(&nv_encoder->base.base); 282 283 nouveau_overlay_init(dev); 284 285 return 0; 286 } 287