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, nv_crtc->cursor.nvbo->bo.offset); 156 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 157 nv_crtc->cursor_saved_y); 158 } 159 160 return 0; 161 } 162 163 static void 164 nv04_display_destroy(struct drm_device *dev) 165 { 166 struct nv04_display *disp = nv04_display(dev); 167 struct nouveau_drm *drm = nouveau_drm(dev); 168 struct nouveau_encoder *encoder; 169 struct nouveau_crtc *nv_crtc; 170 171 /* Restore state */ 172 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 173 encoder->enc_restore(&encoder->base.base); 174 175 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 176 nv_crtc->restore(&nv_crtc->base); 177 178 nouveau_hw_save_vga_fonts(dev, 0); 179 180 nvif_notify_fini(&disp->flip); 181 182 nouveau_display(dev)->priv = NULL; 183 kfree(disp); 184 185 nvif_object_unmap(&drm->client.device.object); 186 } 187 188 int 189 nv04_display_create(struct drm_device *dev) 190 { 191 struct nouveau_drm *drm = nouveau_drm(dev); 192 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 193 struct dcb_table *dcb = &drm->vbios.dcb; 194 struct drm_connector *connector, *ct; 195 struct drm_encoder *encoder; 196 struct nouveau_encoder *nv_encoder; 197 struct nouveau_crtc *crtc; 198 struct nv04_display *disp; 199 int i, ret; 200 201 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 202 if (!disp) 203 return -ENOMEM; 204 205 nvif_object_map(&drm->client.device.object, NULL, 0); 206 207 nouveau_display(dev)->priv = disp; 208 nouveau_display(dev)->dtor = nv04_display_destroy; 209 nouveau_display(dev)->init = nv04_display_init; 210 nouveau_display(dev)->fini = nv04_display_fini; 211 212 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 213 dev->driver_features &= ~DRIVER_ATOMIC; 214 215 /* Request page flip completion event. */ 216 if (drm->nvsw.client) { 217 nvif_notify_init(&drm->nvsw, nv04_flip_complete, 218 false, NV04_NVSW_NTFY_UEVENT, 219 NULL, 0, 0, &disp->flip); 220 } 221 222 nouveau_hw_save_vga_fonts(dev, 1); 223 224 nv04_crtc_create(dev, 0); 225 if (nv_two_heads(dev)) 226 nv04_crtc_create(dev, 1); 227 228 for (i = 0; i < dcb->entries; i++) { 229 struct dcb_output *dcbent = &dcb->entry[i]; 230 231 connector = nouveau_connector_create(dev, dcbent); 232 if (IS_ERR(connector)) 233 continue; 234 235 switch (dcbent->type) { 236 case DCB_OUTPUT_ANALOG: 237 ret = nv04_dac_create(connector, dcbent); 238 break; 239 case DCB_OUTPUT_LVDS: 240 case DCB_OUTPUT_TMDS: 241 ret = nv04_dfp_create(connector, dcbent); 242 break; 243 case DCB_OUTPUT_TV: 244 if (dcbent->location == DCB_LOC_ON_CHIP) 245 ret = nv17_tv_create(connector, dcbent); 246 else 247 ret = nv04_tv_create(connector, dcbent); 248 break; 249 default: 250 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 251 continue; 252 } 253 254 if (ret) 255 continue; 256 } 257 258 list_for_each_entry_safe(connector, ct, 259 &dev->mode_config.connector_list, head) { 260 if (!connector->possible_encoders) { 261 NV_WARN(drm, "%s has no encoders, removing\n", 262 connector->name); 263 connector->funcs->destroy(connector); 264 } 265 } 266 267 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 268 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 269 struct nvkm_i2c_bus *bus = 270 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 271 nv_encoder->i2c = bus ? &bus->i2c : NULL; 272 } 273 274 /* Save previous state */ 275 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 276 crtc->save(&crtc->base); 277 278 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 279 nv_encoder->enc_save(&nv_encoder->base.base); 280 281 nouveau_overlay_init(dev); 282 283 return 0; 284 } 285