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 35 #include <nvif/if0004.h> 36 37 static void 38 nv04_display_fini(struct drm_device *dev, bool suspend) 39 { 40 struct nv04_display *disp = nv04_display(dev); 41 struct drm_crtc *crtc; 42 43 /* Disable flip completion events. */ 44 nvif_notify_put(&disp->flip); 45 46 /* Disable vblank interrupts. */ 47 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 48 if (nv_two_heads(dev)) 49 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 50 51 if (!suspend) 52 return; 53 54 /* Un-pin FB and cursors so they'll be evicted to system memory. */ 55 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 56 struct drm_framebuffer *fb = crtc->primary->fb; 57 struct nouveau_bo *nvbo; 58 59 if (!fb || !fb->obj[0]) 60 continue; 61 nvbo = nouveau_gem_object(fb->obj[0]); 62 nouveau_bo_unpin(nvbo); 63 } 64 65 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 66 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 67 if (nv_crtc->cursor.nvbo) { 68 if (nv_crtc->cursor.set_offset) 69 nouveau_bo_unmap(nv_crtc->cursor.nvbo); 70 nouveau_bo_unpin(nv_crtc->cursor.nvbo); 71 } 72 } 73 } 74 75 static int 76 nv04_display_init(struct drm_device *dev, bool resume, bool runtime) 77 { 78 struct nv04_display *disp = nv04_display(dev); 79 struct nouveau_drm *drm = nouveau_drm(dev); 80 struct nouveau_encoder *encoder; 81 struct drm_crtc *crtc; 82 int ret; 83 84 /* meh.. modeset apparently doesn't setup all the regs and depends 85 * on pre-existing state, for now load the state of the card *before* 86 * nouveau was loaded, and then do a modeset. 87 * 88 * best thing to do probably is to make save/restore routines not 89 * save/restore "pre-load" state, but more general so we can save 90 * on suspend too. 91 */ 92 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 93 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 94 nv_crtc->save(&nv_crtc->base); 95 } 96 97 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 98 encoder->enc_save(&encoder->base.base); 99 100 /* Enable flip completion events. */ 101 nvif_notify_get(&disp->flip); 102 103 if (!resume) 104 return 0; 105 106 /* Re-pin FB/cursors. */ 107 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 108 struct drm_framebuffer *fb = crtc->primary->fb; 109 struct nouveau_bo *nvbo; 110 111 if (!fb || !fb->obj[0]) 112 continue; 113 nvbo = nouveau_gem_object(fb->obj[0]); 114 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, true); 115 if (ret) 116 NV_ERROR(drm, "Could not pin framebuffer\n"); 117 } 118 119 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 120 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 121 if (!nv_crtc->cursor.nvbo) 122 continue; 123 124 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true); 125 if (!ret && nv_crtc->cursor.set_offset) 126 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 127 if (ret) 128 NV_ERROR(drm, "Could not pin/map cursor.\n"); 129 } 130 131 /* Force CLUT to get re-loaded during modeset. */ 132 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 133 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 134 135 nv_crtc->lut.depth = 0; 136 } 137 138 /* This should ensure we don't hit a locking problem when someone 139 * wakes us up via a connector. We should never go into suspend 140 * while the display is on anyways. 141 */ 142 if (runtime) 143 return 0; 144 145 /* Restore mode. */ 146 drm_helper_resume_force_mode(dev); 147 148 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 149 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 150 151 if (!nv_crtc->cursor.nvbo) 152 continue; 153 154 if (nv_crtc->cursor.set_offset) 155 nv_crtc->cursor.set_offset(nv_crtc, 156 nv_crtc->cursor.nvbo->offset); 157 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 158 nv_crtc->cursor_saved_y); 159 } 160 161 return 0; 162 } 163 164 static void 165 nv04_display_destroy(struct drm_device *dev) 166 { 167 struct nv04_display *disp = nv04_display(dev); 168 struct nouveau_drm *drm = nouveau_drm(dev); 169 struct nouveau_encoder *encoder; 170 struct nouveau_crtc *nv_crtc; 171 172 /* Restore state */ 173 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 174 encoder->enc_restore(&encoder->base.base); 175 176 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 177 nv_crtc->restore(&nv_crtc->base); 178 179 nouveau_hw_save_vga_fonts(dev, 0); 180 181 nvif_notify_fini(&disp->flip); 182 183 nouveau_display(dev)->priv = NULL; 184 kfree(disp); 185 186 nvif_object_unmap(&drm->client.device.object); 187 } 188 189 int 190 nv04_display_create(struct drm_device *dev) 191 { 192 struct nouveau_drm *drm = nouveau_drm(dev); 193 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 194 struct dcb_table *dcb = &drm->vbios.dcb; 195 struct drm_connector *connector, *ct; 196 struct drm_encoder *encoder; 197 struct nouveau_encoder *nv_encoder; 198 struct nouveau_crtc *crtc; 199 struct nv04_display *disp; 200 int i, ret; 201 202 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 203 if (!disp) 204 return -ENOMEM; 205 206 nvif_object_map(&drm->client.device.object, NULL, 0); 207 208 nouveau_display(dev)->priv = disp; 209 nouveau_display(dev)->dtor = nv04_display_destroy; 210 nouveau_display(dev)->init = nv04_display_init; 211 nouveau_display(dev)->fini = nv04_display_fini; 212 213 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 214 dev->driver_features &= ~DRIVER_ATOMIC; 215 216 /* Request page flip completion event. */ 217 if (drm->nvsw.client) { 218 nvif_notify_init(&drm->nvsw, nv04_flip_complete, 219 false, NV04_NVSW_NTFY_UEVENT, 220 NULL, 0, 0, &disp->flip); 221 } 222 223 nouveau_hw_save_vga_fonts(dev, 1); 224 225 nv04_crtc_create(dev, 0); 226 if (nv_two_heads(dev)) 227 nv04_crtc_create(dev, 1); 228 229 for (i = 0; i < dcb->entries; i++) { 230 struct dcb_output *dcbent = &dcb->entry[i]; 231 232 connector = nouveau_connector_create(dev, dcbent); 233 if (IS_ERR(connector)) 234 continue; 235 236 switch (dcbent->type) { 237 case DCB_OUTPUT_ANALOG: 238 ret = nv04_dac_create(connector, dcbent); 239 break; 240 case DCB_OUTPUT_LVDS: 241 case DCB_OUTPUT_TMDS: 242 ret = nv04_dfp_create(connector, dcbent); 243 break; 244 case DCB_OUTPUT_TV: 245 if (dcbent->location == DCB_LOC_ON_CHIP) 246 ret = nv17_tv_create(connector, dcbent); 247 else 248 ret = nv04_tv_create(connector, dcbent); 249 break; 250 default: 251 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 252 continue; 253 } 254 255 if (ret) 256 continue; 257 } 258 259 list_for_each_entry_safe(connector, ct, 260 &dev->mode_config.connector_list, head) { 261 if (!connector->possible_encoders) { 262 NV_WARN(drm, "%s has no encoders, removing\n", 263 connector->name); 264 connector->funcs->destroy(connector); 265 } 266 } 267 268 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 269 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 270 struct nvkm_i2c_bus *bus = 271 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 272 nv_encoder->i2c = bus ? &bus->i2c : NULL; 273 } 274 275 /* Save previous state */ 276 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 277 crtc->save(&crtc->base); 278 279 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 280 nv_encoder->enc_save(&nv_encoder->base.base); 281 282 nouveau_overlay_init(dev); 283 284 return 0; 285 } 286