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